CN103409632B - A kind of method of gold mud wet processing tail gas comprehensive reutilization - Google Patents
A kind of method of gold mud wet processing tail gas comprehensive reutilization Download PDFInfo
- Publication number
- CN103409632B CN103409632B CN201310303737.6A CN201310303737A CN103409632B CN 103409632 B CN103409632 B CN 103409632B CN 201310303737 A CN201310303737 A CN 201310303737A CN 103409632 B CN103409632 B CN 103409632B
- Authority
- CN
- China
- Prior art keywords
- gold
- tail gas
- absorption
- gold mud
- mud
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract description 88
- 239000010931 gold Substances 0.000 title claims abstract description 88
- 229910052737 gold Inorganic materials 0.000 title claims abstract description 88
- 238000000034 method Methods 0.000 title claims abstract description 47
- 238000010521 absorption reaction Methods 0.000 claims abstract description 59
- 239000002699 waste material Substances 0.000 claims abstract description 29
- 239000007788 liquid Substances 0.000 claims abstract description 28
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052709 silver Inorganic materials 0.000 claims abstract description 24
- 239000004332 silver Substances 0.000 claims abstract description 24
- 239000003610 charcoal Substances 0.000 claims abstract description 20
- 238000005516 engineering process Methods 0.000 claims abstract description 19
- 238000011084 recovery Methods 0.000 claims abstract description 11
- 238000003723 Smelting Methods 0.000 claims abstract description 9
- 239000002253 acid Substances 0.000 claims abstract description 7
- 238000002386 leaching Methods 0.000 claims abstract description 6
- 239000012141 concentrate Substances 0.000 claims description 34
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 238000001914 filtration Methods 0.000 claims description 13
- 239000002250 absorbent Substances 0.000 claims description 12
- 230000002745 absorbent Effects 0.000 claims description 12
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 10
- 239000000428 dust Substances 0.000 claims description 10
- 238000005554 pickling Methods 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 238000001179 sorption measurement Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 6
- 239000011259 mixed solution Substances 0.000 claims description 5
- 238000006386 neutralization reaction Methods 0.000 claims description 5
- 238000001556 precipitation Methods 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 229910052725 zinc Inorganic materials 0.000 claims description 5
- 239000011701 zinc Substances 0.000 claims description 5
- 238000007667 floating Methods 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 48
- 238000005188 flotation Methods 0.000 description 28
- 239000002516 radical scavenger Substances 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 4
- 239000010953 base metal Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 229910001873 dinitrogen Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910017604 nitric acid Inorganic materials 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical class [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001574 biopsy Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention relates to a kind of method of gold mud wet processing tail gas comprehensive reutilization, belong to smelting exhaust gas process in wet method gold smelting industry, comprehensive utilization reclaim the technical field of gold and silver valuable element.The present invention is from preparing gold mud technique, carry out the steps such as gold mud acid leaching process, tail gas absorption technology, charcoal absorption, the rear liquid comprehensive utilization of absorption successively, the valuable elements such as the gold and silver in gold mud wet processing tail gas are recycled, charcoal absorption is reclaimed the alkalescence circulation waste liquid after gold and silver simultaneously and be directly used in cyanidation tailings floating and enriching splicer skill, as selecting lead system liquid, further recovery lead waits other elements, eliminate alkaline circulation waste liquid to the pollution hazard of surrounding environment, reach energy saving economy environmental protection, the object of effective comprehensive regulation.
Description
Technical field
The present invention relates to a kind of method of gold mud wet processing tail gas comprehensive reutilization, belong to smelting exhaust gas process in wet method gold smelting industry, comprehensive utilization reclaim the technical field of gold and silver valuable element.
Background technology
Gold mud wet processing exhaust gas treating method comprises Wingdale-lime method, ammonia absorption, soda absorption process, Dual alkali and absorption method Lung biopsy.Gold mud wet processing tail gas normally nitrous oxides exhaust gas, acidic flue gas and containing metal smelt particle flue dust etc., and traditional nitrous oxides exhaust gas treatment technology selects sodium hydroxide solution two step absorbing method treatment process usually, in being only and acid tail gas, the tail gas absorber circulation fluid produced is aobvious alkalescence usually, PH=10-12, this component loops waste liquid is still containing a small amount of precious metal element, gold grade reaches 0.3-0.8g/m3, silver grade reaches 0.8-1.2g/m3, plumbous grade reaches 0.30-0.4g/l, these elements are not all reclaimed further, the alkalescence circulation waste liquid simultaneously produced is not recycled further, contaminate environment, cause waste.
Summary of the invention
Technical problem to be solved by this invention is to provide the method for gold mud wet processing tail gas comprehensive reutilization, solves the weak point that above-mentioned prior art exists, can recycle the valuable elements such as the gold and silver in tail gas, lead.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of method of gold mud wet processing tail gas comprehensive reutilization, comprises the following steps:
1) gold mud technique is prepared: gold and silver concentrate adopts directly cyanidation gold-extracted, zinc dust precipitation technique, obtains gold mud and cyanidation gold-extracted tailings;
2) gold mud acid leaching process: be the dust technology pickling of 10 ~ 30% through massfraction by the gold mud of step 1) gained, the tail gas (base metal in acidleach operating process gold mud and the nitric acid reaction that produce, produce oxides of nitrogen gas, owing to reacting violent, produce with bubble, the material that oxynitride and bubbles burst splash together constitutes tail gas) through the spray-absorption of flue, blower fan, multistage absorption tower, discharge finally by tail gas funnel;
3) tail gas absorption technology: by step 2) tail gas funnel discharge tail gas bottom absorption tower, enter absorption tower, contact with the sodium hydroxide solution of the massfraction 10 ~ 30% from absorption tower top spray is reverse, carry out neutralization reaction, obtain final tail gas and alkaline waste liquor; Can discharge after final tail gas is up to standard;
4) charcoal absorption: by 3) alkaline waste liquor that obtains of step after absorbent charcoal adsorber adsorbs, obtain the gac adsorbing rear liquid He be loaded with gold and silver, the gac being loaded with gold and silver carried out smelting recovery, obtain gold and silver product;
5) liquid comprehensive utilization after absorption: after absorption step 4) obtained, liquid (can be directly used in cyanidation tailings floating and enriching splicer skill, as selecting lead system replenisher, further recovery lead waits other elements) mix with the cyanidation gold-extracted tailings that step 1) obtains, obtain mixed solution, then collecting agent is added, roughly select through one-level, secondary is closed circuit to be scanned, secondary is closed circuit selected, (one-level is roughly selected in press filtration, secondary is closed circuit to be scanned, secondary is closed circuit selected, press filtration refers to that the ore pulp after adding collecting agent enters one-level rougher cell, obtain rougher concentration and enter the selected flotation cell of one-level, rougher tailings enters one-level and scans flotation cell, the selected concentrate of one-level enters the selected flotation cell of secondary, and one-level cleaner tailings returns one-level rougher cell, the selected flotation of secondary obtains the lead ore concentrate ore pulp of mass percentage concentration 20%-30%, and secondary cleaner tailings returns the selected flotation cell of one-level, one-level scavenger concentrate returns one-level rougher cell, and one-level is scanned mine tailing and entered secondary and scan flotation cell, and secondary scavenger concentrate enters one-level and scans flotation cell, and secondary is scanned mine tailing and namely selected plumbous mine tailing, concentrate pulp adopts pressure filter press filtration) obtain lead ore concentrate, described lead ore concentrate can be sold outward to plumbous smeltery.
The invention has the beneficial effects as follows: the present invention solves the problem that gold mud wet processing tail gas absorption waste liquid valuable metal element can not get recycling, charcoal absorption is reclaimed the alkalescence circulation waste liquid after gold and silver simultaneously and be directly used in cyanidation tailings floating and enriching splicer skill, as selecting lead system liquid, further recovery lead waits other elements, alkaline circulation waste liquid is made to obtain comprehensive reutilization, eliminate alkaline circulation waste liquid to the pollution hazard of surrounding environment, reach energy saving economy environmental protection, the object of effective comprehensive regulation.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described step 1) gained gold mud containing gold 10 ~ 50%, argentiferous 10 ~ 50%, cupric 1 ~ 15%, leaded 1 ~ 10%, containing zinc 10 ~ 30%.
Further, described step 2) in pickling time dust technology and the mass ratio of gold mud be 3 ~ 5:1, the temperature of described acidleach is 60 ~ 80 DEG C, and the time of described acidleach is 4 ~ 6 hours.
Further, the alkaline waste liquor of described step 3) gained is containing gold 0.3 ~ 0.8g/m3, argentiferous 0.8 ~ 1.2g/m3, leaded 0.30 ~ 0.4g/l, and its pH value is 10 ~ 12.
Further, described step 4) is adsorbed in absorbent charcoal adsorber, and the flow velocity controlling alkaline waste liquor is 1 ~ 3m
3/ h, the rotating speed controlling absorbent charcoal adsorber is 10 ~ 20r/min, controls adsorption time 2 ~ 4h.
Further, in described step 5), after absorption, liquid is that 1.5 ~ 3.5:1 mixes with cyanidation gold-extracted tailings according to mass ratio, and the ph value of mixture obtained is 10 ~ 12.
Embodiment
Be described principle of the present invention and feature below, example, only for explaining the present invention, is not intended to limit scope of the present invention.
Embodiment 1
The method of a kind of gold mud wet processing of the present invention tail gas comprehensive reutilization, comprises the following steps:
1) prepare gold mud technique: gold and silver concentrate adopts direct cyanidation gold-extracted, zinc dust precipitation technique, obtains gold mud and cyanidation gold-extracted tailings, wherein gold mud containing gold 31.50%, argentiferous 12.50%, cupric 13.50%, leaded 6.50%, containing zinc 26.50%;
2) gold mud acid leaching process: be the dust technology pickling of 20% through massfraction by the gold mud of step 1) gained, during pickling, the mass ratio of dust technology and gold mud is 5:1, the temperature of described acidleach is 80 DEG C, and the time of described acidleach is 6 hours; The tail gas (base metal in acidleach operating process gold mud and the nitric acid reaction that produce, produce oxides of nitrogen gas, owing to reacting violent, produce with bubble, the material that oxynitride and bubbles burst splash together constitutes tail gas) through the spray-absorption of flue, blower fan, multistage absorption tower, discharge finally by tail gas funnel;
3) tail gas absorption technology: by step 2) tail gas funnel discharge tail gas bottom absorption tower, enter absorption tower, contact with the sodium hydroxide solution of the massfraction 15% from absorption tower top spray is reverse, carry out neutralization reaction, obtain final tail gas and alkaline waste liquor; Can discharge after final tail gas is up to standard; The alkaline waste liquor of gained is containing golden 0.8g/m3, argentiferous 1.2g/m3, leaded 0.4g/l, and its pH value is 10.5.
4) charcoal absorption: by 3) alkaline waste liquor that obtains of step adsorbs through absorbent charcoal adsorber, and the flow velocity controlling alkaline waste liquor is 1m
3/ h, the rotating speed controlling absorbent charcoal adsorber is 10r/min, controls adsorption time 4h, obtains containing golden 0.01g/m
3, argentiferous 0.02g/m
3absorption after liquid, gold and silver active adsorption in gac, obtain containing golden 2600g/t, argentiferous 3600g/t active gold-carrying carbon carry out smeltings recovery, obtain gold and silver product;
5) liquid comprehensive utilization after absorption: after absorption step 4) obtained, liquid (can be directly used in cyanidation tailings floating and enriching splicer skill, as selecting lead system replenisher, further recovery lead waits other elements) mix according to liquid-solid ratio 3:1 with the cyanidation gold-extracted tailings that step 1) obtains, obtaining pH value is 10.5 mixed solutions, then collecting agent is added, roughly select through one-level, secondary is closed circuit to be scanned, secondary is closed circuit selected, (one-level is roughly selected in press filtration, secondary is closed circuit to be scanned, secondary is closed circuit selected, press filtration refers to that the ore pulp after adding collecting agent enters one-level rougher cell, obtain rougher concentration and enter the selected flotation cell of one-level, rougher tailings enters one-level and scans flotation cell, the selected concentrate of one-level enters the selected flotation cell of secondary, and one-level cleaner tailings returns one-level rougher cell, the selected flotation of secondary obtains the lead ore concentrate ore pulp of mass percentage concentration 20%-30%, and secondary cleaner tailings returns the selected flotation cell of one-level, one-level scavenger concentrate returns one-level rougher cell, and one-level is scanned mine tailing and entered secondary and scan flotation cell, and secondary scavenger concentrate enters one-level and scans flotation cell, and secondary is scanned mine tailing and namely selected plumbous mine tailing, concentrate pulp adopts pressure filter press filtration) obtain lead ore concentrate, described lead ore concentrate can be sold outward to plumbous smeltery.
Table 1: embodiment 1 acquired results and data table related
Embodiment 2
The method of a kind of gold mud wet processing of the present invention tail gas comprehensive reutilization, comprises the following steps:
1) prepare gold mud technique: gold and silver concentrate adopts direct cyanidation gold-extracted, zinc dust precipitation technique, obtains gold mud and cyanidation gold-extracted tailings, wherein gold mud containing gold 50%, argentiferous 15%, cupric 15%, leaded 10%, containing zinc 10%;
2) gold mud acid leaching process: be the dust technology pickling of 10% through massfraction by the gold mud of step 1) gained, during pickling, the mass ratio of dust technology and gold mud is 4:1, the temperature of described acidleach is 60 DEG C, and the time of described acidleach is 5 hours; The tail gas (base metal in acidleach operating process gold mud and the nitric acid reaction that produce, produce oxides of nitrogen gas, owing to reacting violent, produce with bubble, the material that oxynitride and bubbles burst splash together constitutes tail gas) through the spray-absorption of flue, blower fan, multistage absorption tower, discharge finally by tail gas funnel;
3) tail gas absorption technology: by step 2) tail gas funnel discharge tail gas bottom absorption tower, enter absorption tower, contact with the sodium hydroxide solution of the massfraction 15% from absorption tower top spray is reverse, carry out neutralization reaction, obtain final tail gas and alkaline waste liquor; Can discharge after final tail gas is up to standard; The alkaline waste liquor of gained is containing golden 0.6g/m3, argentiferous 0.8g/m3, leaded 0.35g/l, and its pH value is 12.
4) charcoal absorption: by 3) alkaline waste liquor that obtains of step adsorbs through absorbent charcoal adsorber, and the flow velocity controlling alkaline waste liquor is 1m
3/ h, the rotating speed controlling absorbent charcoal adsorber is 10r/min, controls adsorption time 4h, obtains containing golden 0.02g/m
3, argentiferous 0.01g/m
3absorption after liquid, gold and silver active adsorption in gac, obtain containing golden 3400g/t, argentiferous 2800g/t active gold-carrying carbon carry out smeltings recovery, obtain gold and silver product;
5) liquid comprehensive utilization after absorption: after absorption step 4) obtained, liquid (can be directly used in cyanidation tailings floating and enriching splicer skill, as selecting lead system replenisher, further recovery lead waits other elements) mix according to liquid-solid ratio 3:1 with the cyanidation gold-extracted tailings that step 1) obtains, obtaining pH value is 10.5 mixed solutions, then collecting agent is added, roughly select through one-level, secondary is closed circuit to be scanned, secondary is closed circuit selected, (one-level is roughly selected in press filtration, secondary is closed circuit to be scanned, secondary is closed circuit selected, press filtration refers to that the ore pulp after adding collecting agent enters one-level rougher cell, obtain rougher concentration and enter the selected flotation cell of one-level, rougher tailings enters one-level and scans flotation cell, the selected concentrate of one-level enters the selected flotation cell of secondary, and one-level cleaner tailings returns one-level rougher cell, the selected flotation of secondary obtains the lead ore concentrate ore pulp of mass percentage concentration 20%-30%, and secondary cleaner tailings returns the selected flotation cell of one-level, one-level scavenger concentrate returns one-level rougher cell, and one-level is scanned mine tailing and entered secondary and scan flotation cell, and secondary scavenger concentrate enters one-level and scans flotation cell, and secondary is scanned mine tailing and namely selected plumbous mine tailing, concentrate pulp adopts pressure filter press filtration) obtain lead ore concentrate, described lead ore concentrate can be sold outward to plumbous smeltery.
Table 2: embodiment 2 acquired results and data table related
Embodiment 3
The method of a kind of gold mud wet processing of the present invention tail gas comprehensive reutilization, comprises the following steps:
1) prepare gold mud technique: gold and silver concentrate adopts direct cyanidation gold-extracted, zinc dust precipitation technique, obtains gold mud and cyanidation gold-extracted tailings, wherein gold mud containing gold 10%, argentiferous 50%, cupric 5%, leaded 5%, containing zinc 30%;
2) gold mud acid leaching process: be the dust technology pickling of 30% through massfraction by the gold mud of step 1) gained, during pickling, the mass ratio of dust technology and gold mud is 3:1, the temperature of described acidleach is 70 DEG C, and the time of described acidleach is 4 hours; The tail gas (base metal in acidleach operating process gold mud and the nitric acid reaction that produce, produce oxides of nitrogen gas, owing to reacting violent, produce with bubble, the material that oxynitride and bubbles burst splash together constitutes tail gas) through the spray-absorption of flue, blower fan, multistage absorption tower, discharge finally by tail gas funnel;
3) tail gas absorption technology: by step 2) tail gas funnel discharge tail gas bottom absorption tower, enter absorption tower, contact with the sodium hydroxide solution of the massfraction 15% from absorption tower top spray is reverse, carry out neutralization reaction, obtain final tail gas and alkaline waste liquor; Can discharge after final tail gas is up to standard; The alkaline waste liquor of gained is containing golden 0.3g/m3, argentiferous 1g/m3, leaded 0.3g/l, and its pH value is 10.
4) charcoal absorption: by 3) alkaline waste liquor that obtains of step adsorbs through absorbent charcoal adsorber, and the flow velocity controlling alkaline waste liquor is 1m
3/ h, the rotating speed controlling absorbent charcoal adsorber is 10r/min, controls adsorption time 4h, obtains containing golden 0.008g/m
3, argentiferous 0.025g/m
3absorption after liquid, gold and silver active adsorption in gac, obtain containing golden 2200g/t, argentiferous 4000g/t active gold-carrying carbon carry out smeltings recovery, obtain gold and silver product;
5) liquid comprehensive utilization after absorption: after absorption step 4) obtained, liquid (can be directly used in cyanidation tailings floating and enriching splicer skill, as selecting lead system replenisher, further recovery lead waits other elements) mix according to liquid-solid ratio 3:1 with the cyanidation gold-extracted tailings that step 1) obtains, obtaining pH value is 10.5 mixed solutions, then collecting agent is added, roughly select through one-level, secondary is closed circuit to be scanned, secondary is closed circuit selected, (one-level is roughly selected in press filtration, secondary is closed circuit to be scanned, secondary is closed circuit selected, press filtration refers to that the ore pulp after adding collecting agent enters one-level rougher cell, obtain rougher concentration and enter the selected flotation cell of one-level, rougher tailings enters one-level and scans flotation cell, the selected concentrate of one-level enters the selected flotation cell of secondary, and one-level cleaner tailings returns one-level rougher cell, the selected flotation of secondary obtains the lead ore concentrate ore pulp of mass percentage concentration 20%-30%, and secondary cleaner tailings returns the selected flotation cell of one-level, one-level scavenger concentrate returns one-level rougher cell, and one-level is scanned mine tailing and entered secondary and scan flotation cell, and secondary scavenger concentrate enters one-level and scans flotation cell, and secondary is scanned mine tailing and namely selected plumbous mine tailing, concentrate pulp adopts pressure filter press filtration) obtain lead ore concentrate, described lead ore concentrate can be sold outward to plumbous smeltery.
Table 3: embodiment 3 acquired results and data table related
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a method for gold mud wet processing tail gas comprehensive reutilization, is characterized in that, comprise the following steps:
1) gold mud technique is prepared: gold and silver concentrate adopts directly cyanidation gold-extracted, zinc dust precipitation technique, obtains gold mud and cyanidation gold-extracted tailings;
2) gold mud acid leaching process: by step 1) gold mud of gained through massfraction be 10 ~ 30% dust technology pickling, the tail gas of generation, through the spray-absorption of flue, blower fan, multistage absorption tower, is discharged finally by tail gas funnel;
3) tail gas absorption technology: by step 2) tail gas funnel discharge tail gas bottom absorption tower, enter absorption tower, contact with the sodium hydroxide solution of the massfraction 10 ~ 30% from absorption tower top spray is reverse, carry out neutralization reaction, obtain final tail gas and alkaline waste liquor;
4) charcoal absorption: by 3) alkaline waste liquor that obtains of step after absorbent charcoal adsorber adsorbs, obtain the gac adsorbing rear liquid He be loaded with gold and silver, the gac being loaded with gold and silver carried out smelting recovery, obtain gold and silver product;
5) liquid comprehensive utilization after absorption: by step 4) liquid and step 1 after the absorption that obtains) the cyanidation gold-extracted tailings that obtains mixes, obtain mixed solution, then add collecting agent, roughly select through one-level, secondary is closed circuitly scanned, closed circuit selected, the press filtration of secondary obtains lead ore concentrate.
2. the method for gold mud wet processing tail gas comprehensive reutilization according to claim 1, is characterized in that, described step 1) gold mud of gained containing gold 10 ~ 50%, argentiferous 10 ~ 50%, cupric 1 ~ 15%, leaded 1 ~ 10%, containing zinc 10 ~ 30%.
3. the method for gold mud wet processing tail gas comprehensive reutilization according to claim 1, it is characterized in that, described step 2) in pickling time dust technology and the mass ratio of gold mud be 3 ~ 5:1, the temperature of described acidleach is 60 ~ 80 DEG C, and the time of described acidleach is 4 ~ 6 hours.
4. the method for gold mud wet processing tail gas comprehensive reutilization according to claim 1, it is characterized in that, described step 3) gained alkaline waste liquor containing gold 0.3 ~ 0.8g/m3, argentiferous 0.8 ~ 1.2g/m3, leaded 0.30 ~ 0.4g/l, its pH value is 10 ~ 12.
5. the method for gold mud wet processing tail gas comprehensive reutilization according to claim 1, is characterized in that, described step 4) adsorb in absorbent charcoal adsorber, the flow velocity controlling alkaline waste liquor is 1 ~ 3m
3/ h, the rotating speed controlling absorbent charcoal adsorber is 10 ~ 20r/min, controls adsorption time 2 ~ 4h.
6. the method for gold mud wet processing tail gas comprehensive reutilization according to claim 1, is characterized in that, described step 5) in after absorption liquid be that 1.5 ~ 3.5:1 mixes with cyanidation gold-extracted tailings according to mass ratio, the ph value of mixture obtained is 10 ~ 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310303737.6A CN103409632B (en) | 2013-07-18 | 2013-07-18 | A kind of method of gold mud wet processing tail gas comprehensive reutilization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310303737.6A CN103409632B (en) | 2013-07-18 | 2013-07-18 | A kind of method of gold mud wet processing tail gas comprehensive reutilization |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103409632A CN103409632A (en) | 2013-11-27 |
| CN103409632B true CN103409632B (en) | 2016-01-13 |
Family
ID=49602672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310303737.6A Active CN103409632B (en) | 2013-07-18 | 2013-07-18 | A kind of method of gold mud wet processing tail gas comprehensive reutilization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103409632B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0177293A2 (en) * | 1984-09-27 | 1986-04-09 | Sherritt Gordon Limited | Process for separately recovering gold and silver from solution by carbon adsorption |
| JPS63121625A (en) * | 1986-11-10 | 1988-05-25 | Kurita Water Ind Ltd | How to recover gold and silver from wastewater |
| CN101029357A (en) * | 2007-04-04 | 2007-09-05 | 长春黄金研究院 | Method for managing, circulating and utilizing nitronic oxide during golden smelting process |
| CN101036851A (en) * | 2007-02-09 | 2007-09-19 | 中北大学 | Method and apparatus for processing waste air including oxynitride |
| CN101660048A (en) * | 2009-09-24 | 2010-03-03 | 无锡市霄鹰环境科技有限公司 | Multilevel processing technology for recovering and utilizing precious metal wastes or waste liquid |
| CN102168176A (en) * | 2011-03-10 | 2011-08-31 | 田文学 | Comprehensive recycling process for valuable metal roasting-cyaniding gold-containing tailing |
| CN202032888U (en) * | 2010-12-31 | 2011-11-09 | 苏州新凌电炉有限公司 | Novel mesh band quenching furnace |
| CN102430482A (en) * | 2011-12-28 | 2012-05-02 | 山东国大黄金股份有限公司 | Method for comprehensively recovering copper, gold and silver from liquid after copper separation of cyaniding gold extraction tailings |
| CN102451610A (en) * | 2010-10-15 | 2012-05-16 | 中国石油化工股份有限公司 | Treatment method for nitrogen oxide tail gas discharged from industrial production furnace, and apparatus thereof |
-
2013
- 2013-07-18 CN CN201310303737.6A patent/CN103409632B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0177293A2 (en) * | 1984-09-27 | 1986-04-09 | Sherritt Gordon Limited | Process for separately recovering gold and silver from solution by carbon adsorption |
| JPS63121625A (en) * | 1986-11-10 | 1988-05-25 | Kurita Water Ind Ltd | How to recover gold and silver from wastewater |
| CN101036851A (en) * | 2007-02-09 | 2007-09-19 | 中北大学 | Method and apparatus for processing waste air including oxynitride |
| CN101029357A (en) * | 2007-04-04 | 2007-09-05 | 长春黄金研究院 | Method for managing, circulating and utilizing nitronic oxide during golden smelting process |
| CN101660048A (en) * | 2009-09-24 | 2010-03-03 | 无锡市霄鹰环境科技有限公司 | Multilevel processing technology for recovering and utilizing precious metal wastes or waste liquid |
| CN102451610A (en) * | 2010-10-15 | 2012-05-16 | 中国石油化工股份有限公司 | Treatment method for nitrogen oxide tail gas discharged from industrial production furnace, and apparatus thereof |
| CN202032888U (en) * | 2010-12-31 | 2011-11-09 | 苏州新凌电炉有限公司 | Novel mesh band quenching furnace |
| CN102168176A (en) * | 2011-03-10 | 2011-08-31 | 田文学 | Comprehensive recycling process for valuable metal roasting-cyaniding gold-containing tailing |
| CN102430482A (en) * | 2011-12-28 | 2012-05-02 | 山东国大黄金股份有限公司 | Method for comprehensively recovering copper, gold and silver from liquid after copper separation of cyaniding gold extraction tailings |
Non-Patent Citations (1)
| Title |
|---|
| 金、银湿法冶炼过程中氮氧化物气体处理工艺的可行性选择;李哲浩等;《黄金》;20070330;第28卷(第03期);49-52 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103409632A (en) | 2013-11-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109987639B (en) | A kind of method of aluminum-enhanced red mud dealkalization and separation and recovery of aluminum and iron | |
| CN1908207A (en) | Method of comprehensive utilizing iron making blast furnace dust resources | |
| CN103334007B (en) | The method of liquid recycling more than baking acid immersion extraction process output extraction copper | |
| CN107574309B (en) | A method of utilizing cyanide bearing waste solution purified treatment smelting exhaust synthetical recovery gold, silver and bronze | |
| CN110090548B (en) | Method for wet desulphurization and zinc sulfate recovery of copper slag tailings and zinc smelting fly ash | |
| CN107217135A (en) | A kind of method of the multistage Concentration of Gold Ag-Cu-Zn of cyanidation gold-extracted waste slag and synthetical recovery | |
| CN107162281A (en) | The processing method and Waste Water Treatment of heavy metal ion in a kind of removal smelting wastewater | |
| CN106422716A (en) | A method and device for extracting copper tailings to remove SO2 in flue gas and recycle them | |
| CN110423892A (en) | A kind of method of copper ashes Tailings Slurry flue gas desulfurization collaboration copper resource high efficiente callback | |
| CN108017374B (en) | Method and device for comprehensively utilizing cyanide tailings | |
| CN108246090A (en) | A kind of process using slag slurries wet method decarburization | |
| CN105463204A (en) | Purifying and regenerating method for gold bearing mineral containing cyanating solution | |
| CN115213016A (en) | A kind of flotation recovery method of sulfide ore in cyanide tailings | |
| CN115213017A (en) | Activation-flotation recovery method for sulfide minerals in cyanidation tailings | |
| CN102363842B (en) | Process for recovering arsenic comprehensively by two-section roasting of arsenic-containing and carbon-containing gold concentrates | |
| CN103555963A (en) | Method for treating cyaniding gold extraction waste liquid to recover gold, silver and copper by use of acid making waste gas | |
| CN110075697B (en) | A method for flue gas desulfurization and resource utilization based on electrolytic manganese tailings slag | |
| CN104815759A (en) | Technological method and device for copper and molybdenum separation waste water cyclic utilization | |
| CN103305696B (en) | Method for treating alkaline gold-extraction tailings by utilizing acid making tail gas | |
| CN105256135B (en) | Method for recovering phosphorus resource in high-phosphorus iron ore through ball-milling acid leaching-biological adsorption | |
| CN107354300B (en) | A method for enriching rhenium from copper smelting waste acid | |
| CN103409632B (en) | A kind of method of gold mud wet processing tail gas comprehensive reutilization | |
| CN113457410A (en) | Method and device for desulfurizing, removing mercury and decarbonizing flue gas of lead-zinc smelting volatilization kiln | |
| CN103215453B (en) | Method for treating waste residue by using arsenious wastewater in clean mode | |
| CN113528816B (en) | A kind of method of direct acid leaching flotation zinc oxide concentrate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A method for comprehensive recovery and utilization of tail gas from gold mud wet process Effective date of registration: 20211202 Granted publication date: 20160113 Pledgee: Zhaoyuan Huatang Trading Co.,Ltd. Pledgor: SHANDONG GUODA GOLD Co.,Ltd. Registration number: Y2021980013873 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220622 Granted publication date: 20160113 Pledgee: Zhaoyuan Huatang Trading Co.,Ltd. Pledgor: SHANDONG GUODA GOLD Co.,Ltd. Registration number: Y2021980013873 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |