CN1295135A - Dearsenicating method during smelting lead-antimony alloy - Google Patents
Dearsenicating method during smelting lead-antimony alloy Download PDFInfo
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- CN1295135A CN1295135A CN 00121824 CN00121824A CN1295135A CN 1295135 A CN1295135 A CN 1295135A CN 00121824 CN00121824 CN 00121824 CN 00121824 A CN00121824 A CN 00121824A CN 1295135 A CN1295135 A CN 1295135A
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- Prior art keywords
- arsenic
- lead
- antimony
- antimony alloy
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Links
- 229910001245 Sb alloy Inorganic materials 0.000 title claims abstract description 24
- 239000002140 antimony alloy Substances 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims description 41
- 238000003723 Smelting Methods 0.000 title claims description 11
- 229910052785 arsenic Inorganic materials 0.000 claims abstract description 49
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 claims abstract description 45
- 229910052751 metal Inorganic materials 0.000 claims abstract description 24
- 239000002184 metal Substances 0.000 claims abstract description 24
- 229910052787 antimony Inorganic materials 0.000 claims abstract description 22
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 13
- 239000012535 impurity Substances 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims abstract description 7
- MHUWZNTUIIFHAS-XPWSMXQVSA-N 9-octadecenoic acid 1-[(phosphonoxy)methyl]-1,2-ethanediyl ester Chemical compound CCCCCCCC\C=C\CCCCCCCC(=O)OCC(COP(O)(O)=O)OC(=O)CCCCCCC\C=C\CCCCCCCC MHUWZNTUIIFHAS-XPWSMXQVSA-N 0.000 claims abstract description 6
- 229940047047 sodium arsenate Drugs 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 239000007800 oxidant agent Substances 0.000 claims description 5
- 230000001590 oxidative effect Effects 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract description 21
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 abstract description 8
- 229910000029 sodium carbonate Inorganic materials 0.000 abstract description 4
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 10
- 229910000410 antimony oxide Inorganic materials 0.000 description 7
- 229910052802 copper Inorganic materials 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- 229910052738 indium Inorganic materials 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 description 7
- 239000011135 tin Substances 0.000 description 7
- 229910052718 tin Inorganic materials 0.000 description 7
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 5
- 239000011780 sodium chloride Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- GHPGOEFPKIHBNM-UHFFFAOYSA-N antimony(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Sb+3].[Sb+3] GHPGOEFPKIHBNM-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 235000010344 sodium nitrate Nutrition 0.000 description 3
- 239000004317 sodium nitrate Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- IKWTVSLWAPBBKU-UHFFFAOYSA-N a1010_sial Chemical compound O=[As]O[As]=O IKWTVSLWAPBBKU-UHFFFAOYSA-N 0.000 description 2
- 229910000413 arsenic oxide Inorganic materials 0.000 description 2
- 229960002594 arsenic trioxide Drugs 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 1
- 229910017251 AsO4 Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 235000010333 potassium nitrate Nutrition 0.000 description 1
- 239000004323 potassium nitrate Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- NSBGJRFJIJFMGW-UHFFFAOYSA-N trisodium;stiborate Chemical compound [Na+].[Na+].[Na+].[O-][Sb]([O-])([O-])=O NSBGJRFJIJFMGW-UHFFFAOYSA-N 0.000 description 1
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- Manufacture And Refinement Of Metals (AREA)
Abstract
Impurity-containing lead-antimony is heated and molten in metal crucible and under stirring, sodium hydroxide or sodium carbonate as dearsenicating agent is added to the molten metal so that arsenic is reacted to form floated sodium arsenate dregs and the floated dregs are separated to obtain lead-antimony alloy. Compared with prior art, the present invention is simple, high in efficiency and high in yield.
Description
The utility model relates to a non-ferrous metal smelting technology, in particular to a method for smelting lead-antimony alloy containing arsenic.
In the production process of antimony white, impurities in lead-antimony alloy containing impurities obtained by smelting need to be removed, and particularly arsenic in the lead-antimony alloy needs to be removed. In the prior art, the process for removing arsenic from lead-antimony alloy is completed in a plurality of furnaces and a plurality of processes, and the arsenic removal process adopted by the applicant is completed in two reverberatory furnaces, and the process has the following defects: firstly, the working procedures are excessive and complicated, and the equipment investment is high; secondly, after antimony oxide is reduced, alkali is used for removing arsenic, so that the direct yield of antimony is reduced; thirdly, if the technique for producing the antimony white by adopting the lead-antimony alloy is adopted, the separated metal lead and the metal antimony need to be re-fused, so that the whole technique for producing the antimony white is more complicated and has low efficiency.
The invention aims to provide the arsenic removal process method for smelting the lead-antimony alloy containing impurities, which has the advantages of simple process, small equipment investment and high production efficiency.
In order to realize the purpose, the process method adopted by the invention is as follows: putting the lead-antimony alloy containing impurities into a metal pot for heating and melting, adding an arsenic removal agent into the molten metal under the stirring condition to react arsenic to form sodium arsenate scum, and separating the scum from the lead-antimony metal liquid to obtain the lead-antimony alloy.
In the scheme, when the arsenicremoval agent is added, the technical process can be accelerated by adding the oxidant; the temperature can be controlled at 400-650 ℃, and preferably the temperature is decreased from high to low within the range of 400-650 ℃; in addition, an oxidizing gas may be bubbled into the molten metal in the above process.
The arsenic removing agent is any one of sodium hydroxide and sodium carbonate or a mixture of the sodium hydroxide and the sodium carbonate, and sodium chloride can be added into the arsenic removing agent to play a synergistic effect. The above-mentioned oxidizer means any one compound of potassium nitrate, sodium nitrate and ammonium nitrate, or a mixture of any two compounds thereof, or a mixture of three compounds thereof.
The chemical reactions that can take place are:
from the above reaction, even a small amount of antimony forms sodium antimonate (Na)3SbO4) Slag-like compounds which are also rapidly replaced by arsenic to form sodium arsenate (Na)3AsO4) And metallic antimony, the loss of antimony in the form of slag compounds is very small.
Due to the adoption of the scheme, compared with the prior art, the invention has the following beneficial effects:
1. the process is simple, the working procedures are few, the process requirement is low, and the labor productivity is improved.
2. The occupied area is small, and the equipment investment is low.
3. The yield of metal is high. Because a plurality of working procedures are saved, the yield loss of each working procedure is avoided; in the production, because little lead and antimony enter the arsenic slag, the direct yield of the lead and the antimony is greatly improved.
The invention is further illustrated by the following process and examples in conjunction with the accompanying drawings:
FIG. 1 is a process flow diagram of a prior art process employed by the applicant.
FIG. 2 is a process flow diagram of the process of the present invention.
In the process shown in FIG. 1: the first step is that the crude lead-antimony alloy containing impurities is put into a reverberatory furnace to be heated and melted, the temperature is raised to 700-800 ℃, oxygen is blown by air blast, the impurities are removed in the form of scum, antimony in the crude lead-antimony alloy is generated into powder antimony oxide, the powder antimony oxide is collected by a dust collector, at the moment, arsenic is also formed into powder arsenic oxide to be mixed in the powder antimony oxide to form antimony oxide containing arsenic, and meanwhile, refined lead metal is left in the reverberatory furnace; secondly, putting the powdery antimony oxide containing arsenic into a second reverberatory furnace with carbon added, heating to 800-900 ℃ to reduce the arsenic oxide and the antimony oxide into antimony metal containing arsenic, namely crude antimony containing arsenic; and thirdly, adding sodium carbonate into the molten crude antimony containing arsenic to separate arsenic from antimony metal in the form of scum sodium arsenate to obtain refined antimony with qualified arsenic content. The process has many working procedures and large equipment investment, and the recovery rate of antimony is not high after recovery of a dust collector and the like.
In the process shown in fig. 2: the refined antimony with qualified arsenic content is obtained by charging crude lead-antimony alloy containing impurities into a steel pot, heating to melt, heating to 600 deg.C, blowing oxygen into molten metal liquid, stirring with a stirrer to chemically react the impurities in the molten metal, such as iron, copper, tin, indium and part of arsenic, to generate scum-like substances, removing the scum, and then adding arsenic removal agent while stirring, or adding oxidant to separate arsenic from antimony metal in the form of scum-like sodium arsenate. The examples of smelting in 10-ton and 20-ton furnaces according to the process are as follows:
example 1:
10 tons of lead-antimony alloy (Pb: 58%, Sb: 37%, Fe: 1.2%, As: 1.15%, Cu: 0.4%, Sn: 0.5%, and In: 0.05%) is charged into a steel casting pot, heated to melt, heated to 600 ℃, oxygen is blown into the molten metal liquid, the molten metal liquid is stirred by a stirrer to cause chemical reaction of impurities such As iron, copper, tin, indium, and part of arsenic In the molten metal and generate dross-like substances, the dross is removed, and an arsenic removal agent composed of sodium hydroxide and sodium chloride is added while stirring, and the arsenic removal agent is composed of sodium hydroxide and sodium chloride In a ratio of 10: 1 parts by weight. The arsenic removing agent adopts a method of adding for multiple times, scum is flooded out after each time of adding until the arsenic content in the sample is qualified by testing.
After the treatment by the above treatment process, 9.2 tons of lead-antimony alloy (Pb 59%, Sb 39.5%, Fe 0.004%, As 0.02%, Cu 0.015%, Sn 0.1%, In 0.01%) can be obtained.
Example two:
a cast steel pot was charged with 20 tons of lead-antimony alloy (Pb: 45%, Sb: 50%, Fe: 1.1%, As: 0.8%, Cu: 0.7%, Sn: 1.0%, In: 0.07%), heated to melt, heated to 650 ℃, blown with air to the molten metal, stirred with a stirrer to cause chemical reaction of impurities such As iron, copper, tin, indium and part of arsenic In the molten metal and produce dross-like substances, and then, after removing these dross, a mixture of an arsenic removal agent comprising sodium hydroxide and sodium chloride and an oxidizing agent comprising sodium nitrate was added while stirring, the mixture comprising sodium hydroxide, sodium chloride and sodium nitrate In a ratio of 10: 1: 0.5 parts by weight. The mixture is added for multiple times, and scum is waterlogged out after each addition until the arsenic content in the mixture is qualified after sampling and testing.
After the treatment by the above treatment process, 18.5 tons of Pb-Sb alloy (Pb: 46%, Sb: 52.5%, Fe: 0.003%, As: 0.01%, Cu: 0.01%, Sn: 0.2%, and In: 0.005%) can be obtained.
Claims (4)
1. A method for removing arsenic in lead-antimony alloy smelting is characterized by comprising the following steps: putting the lead-antimony alloy containing impurities into a metal pot for heating and melting, adding an arsenic removal agent into the molten metal under the stirring condition, reacting arsenic to form sodium arsenate scum, and separating the scum from the lead-antimony metal liquid to obtain the lead-antimony alloy.
2. The arsenic removal method for lead-antimony alloy smelting according to claim 1, wherein the arsenic removal method comprises the following steps: when the arsenic removing agent is added, the oxidant is added, and the temperature is controlled at 400-650 ℃.
3. The arsenic removal method for lead-antimony alloy smelting according to claim 2, characterized in that: when the arsenic removing agent is added for removing arsenic, the temperature is controlled to be reduced from high to low within the range of 400-650 ℃ in the whole arsenic removing process.
4. The arsenic removal method for lead-antimony alloy smelting according to claim 1, 2 or 3, wherein: an oxidizing gas is bubbled through the molten metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001218247A CN1142300C (en) | 2000-07-14 | 2000-07-14 | Dearsenicating method during smelting lead-antimony alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001218247A CN1142300C (en) | 2000-07-14 | 2000-07-14 | Dearsenicating method during smelting lead-antimony alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1295135A true CN1295135A (en) | 2001-05-16 |
| CN1142300C CN1142300C (en) | 2004-03-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001218247A Expired - Fee Related CN1142300C (en) | 2000-07-14 | 2000-07-14 | Dearsenicating method during smelting lead-antimony alloy |
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| Country | Link |
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| CN (1) | CN1142300C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103526049A (en) * | 2013-10-30 | 2014-01-22 | 四川鑫龙碲业科技开发有限责任公司 | Arsenic removal method used in pyrometallurgucal process for antimony |
| CN104789786A (en) * | 2015-04-01 | 2015-07-22 | 郴州雄风环保科技有限公司 | Method for harmlessly treating arsenic-containing waste slag and comprehensively recycling valuable metals in arsenic-containing waste slag |
| CN105018757A (en) * | 2015-06-30 | 2015-11-04 | 厦门大学 | Metal melting protective agent and preparation method and application thereof |
| CN106086446A (en) * | 2016-08-24 | 2016-11-09 | 北京矿冶研究总院 | Method for removing arsenic from metal or alloy |
| CN106086461A (en) * | 2016-08-18 | 2016-11-09 | 紫金矿业集团股份有限公司 | A kind of method of Copper making process slag making arsenic removal |
| CN106629633A (en) * | 2016-12-27 | 2017-05-10 | 郴州市金贵银业股份有限公司 | Method for refining and removing arsenic from precipitated tellurium |
| CN112048736A (en) * | 2020-09-03 | 2020-12-08 | 武汉拓材科技有限公司 | Method for preparing high-density rod-shaped antimony |
| CN113302325A (en) * | 2019-01-30 | 2021-08-24 | 梅塔洛比利时公司 | Improved high purity lead production process |
| CN116751991A (en) * | 2023-06-20 | 2023-09-15 | 成都中建材光电材料有限公司 | A kind of production method of low arsenic metal antimony |
-
2000
- 2000-07-14 CN CNB001218247A patent/CN1142300C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103526049A (en) * | 2013-10-30 | 2014-01-22 | 四川鑫龙碲业科技开发有限责任公司 | Arsenic removal method used in pyrometallurgucal process for antimony |
| CN104789786A (en) * | 2015-04-01 | 2015-07-22 | 郴州雄风环保科技有限公司 | Method for harmlessly treating arsenic-containing waste slag and comprehensively recycling valuable metals in arsenic-containing waste slag |
| CN104789786B (en) * | 2015-04-01 | 2017-03-15 | 郴州雄风环保科技有限公司 | A kind of harmlessness disposing arsenic-containing waste residue and the method for synthetical recovery wherein valuable metal |
| CN105018757A (en) * | 2015-06-30 | 2015-11-04 | 厦门大学 | Metal melting protective agent and preparation method and application thereof |
| CN105018757B (en) * | 2015-06-30 | 2017-12-22 | 福建省闽华电源股份有限公司 | A kind of metal melting protective agent and its preparation method and application |
| CN106086461A (en) * | 2016-08-18 | 2016-11-09 | 紫金矿业集团股份有限公司 | A kind of method of Copper making process slag making arsenic removal |
| CN106086446A (en) * | 2016-08-24 | 2016-11-09 | 北京矿冶研究总院 | Method for removing arsenic from metal or alloy |
| CN106629633A (en) * | 2016-12-27 | 2017-05-10 | 郴州市金贵银业股份有限公司 | Method for refining and removing arsenic from precipitated tellurium |
| CN113302325A (en) * | 2019-01-30 | 2021-08-24 | 梅塔洛比利时公司 | Improved high purity lead production process |
| CN113302325B (en) * | 2019-01-30 | 2023-06-23 | 梅塔洛比利时公司 | Improved production method of high-purity lead |
| CN112048736A (en) * | 2020-09-03 | 2020-12-08 | 武汉拓材科技有限公司 | Method for preparing high-density rod-shaped antimony |
| CN116751991A (en) * | 2023-06-20 | 2023-09-15 | 成都中建材光电材料有限公司 | A kind of production method of low arsenic metal antimony |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1142300C (en) | 2004-03-17 |
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