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CN103464305B - Noble metals beneficiation agent and preparation method and application thereof - Google Patents

Noble metals beneficiation agent and preparation method and application thereof Download PDF

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Publication number
CN103464305B
CN103464305B CN201310401606.1A CN201310401606A CN103464305B CN 103464305 B CN103464305 B CN 103464305B CN 201310401606 A CN201310401606 A CN 201310401606A CN 103464305 B CN103464305 B CN 103464305B
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noble metal
dressing agent
grams
ore
gold
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CN103464305A (en
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卢卫球
谭贤波
唐婷
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Guangxi Zhong He Lian Ju Environmental Protection Technology Co., Ltd.
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PEACE & POWER TECH Co Ltd
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Abstract

The invention discloses noble metals beneficiation agent. The noble metals beneficiation agent is characterized by containing 6-12 parts of alkali hydroxide, 8-16 parts of alkali carbonate, 20-40 parts of urea, 12-20 parts of potassium ferrocyanide, 4-8 parts of sodium chloride cynanide, and 2-5 parts of butyl xanthate. A preparation method of the noble metals beneficiation agent includes: proportionally mixing well the alkali hydroxide, the alkali carbonate, the urea and the potassium ferrocyanide, heating to 600-1000 DEG C to keep material molten for 1-2h, cooling to the room temperature, crushing, and evenly mixing the crushed material with the sodium chloride cynanide and the butyl xanthate so as to obtain the noble metals beneficiation agent. The invention further discloses an application method of the noble metals beneficiation agent.

Description

A kind of noble metal dressing agent and its preparation method and application
Technical field
The present invention relates to the oxide of a kind of noble metal mineral dressing additive, particularly gold, silver and copper or/and the dressing agent and its preparation method and application of sulfide.
Background technology
Along with improving constantly of people's living standard, the demand of gold expanded rapidly, only have continuous searching, develop new gold mineral product resource, the pursuit of people to U.S. could be met.But along with the exhaustion of high-grade gold deposits, and consider economy and environment protection problem, the process of poor value must be studied, leach a difficult problem.Chinese patent title: a kind of mineral dressing additive for gold mine and preparation method thereof, Application Number (patent): 201010553418.7, open (bulletin) number: CN102166545A, application (patent right) people: fault is bright, disclose a kind of additive that can process low-grade gold, this additive has advantages such as leaching the rate of recovery is high, environmental protection, but this dressing agent can only be applicable to Precious metal oxidation ore deposit, very poor to the leaching effect of noble metal sulphide ore, and often the oxide ore of noble metal and sulphide ore are symbiosis, this causes the waste of the resource of noble metal unavoidably.Also the dressing agent report being applicable to noble metal sulphide ore is had, as Chinese patent title: noble metal and nonferrous metal sulfide mineral composite chemical for floatating, Application Number (patent): the CN99113384.6 applying date: 1999.10.29, open (bulletin) number: CN1294032, open (bulletin) day: 2001.05.09, application (patent right) people: Shenyang Mining and Metallurgical Industry Inst., address: south, Tiexi District, Shenyang City, Liaoning Province No. 70, nine Road invention (design) people: Han Shushan makes a summary: noble metal and nonferrous metal sulfide mineral floating agent field, contain: dialkyl dithiophosphate 30%-60%, dialkyl thiocarbamic acid ester 8%-14%, mixed fatty alcohol 8%-24%, aromatic naphtha 4%-8%, sodium carboxymethylcellulose 0%-30%, water 15%-36%, it is little that this invention has consumption, cost is low, medicament interpolation system is easy, good improvement can be had to metal recovery index.But this dressing agent is made up of organic chemical reagent, price, and toxicity is high, has pollution to environment.
Summary of the invention
The object of the invention is openly a kind of dressing agent being applicable to Precious metal oxidation ore deposit and sulphide ore, this dressing agent is all made up of low toxicity or even nontoxic inorganic compound, and cost is low, environmentally friendly; Present invention also discloses preparation method and the using method of this dressing agent.
The solution of the present invention is:
Precious metal ore agent, comprises the raw material of following parts by weight:
Alkali metal hydroxide 6 ~ 12;
Alkali carbonate 8 ~ 16;
Urea 20 ~ 40;
Potassium ferrocyanide 12 ~ 20;
Chlorination hydroxyl sodium salt 4 ~ 8;
Butyl xanthate, 2 ~ 5;
Described alkali metal hydroxide is NaOH or potassium hydroxide or their mixture;
Described alkali carbonate is the composition of any one or they in sodium carbonate, potash, sodium acid carbonate or saleratus.
Described potassium ferrocyanide chemical name is potassium ferrocyanide (chemical formula K 4[Fe(CN) 6] 3H 2o), sodium ferrocyanide (chemical formula Na 4[Fe(CN) 6] 3H 2o), pale yellow crystals is the complex that iron and cyanogen are formed.Mainly for the manufacture of paint, ink, pigment, pharmacy, metal heat treatmet, salt anticaking agent, food additives and steel and iron industry and rub leather etc.
Described chlorination hydroxyl sodium salt, chemicals popular name: gold ore agent, chemical classes English name: Sodium chloride cynanide, chemical molecular formula: Na 3cNOHCl, be a kind of New Gold dressing agent, can be applicable to noble metal sulphide ore, cost is low, and toxicity is little.
Described butyl xanthate is sodium n-butyl-xanthate C 4h 9oCSSNa or potassium butyl xanthate C 4h 9oCSSK can be normal-butyl xanthates, also can be isobutyl group xanthates.
The production method of noble metal dressing agent of the present invention: alkali metal hydroxide, alkali carbonate, urea and potassium ferrocyanide are proportionally, mix, then 600 ~ 1000 DEG C are heated to, material is made to keep 1 ~ 2h in the molten state, be cooled to normal temperature, mix with chlorination hydroxyl sodium salt and butyl xanthate after pulverizing, obtain noble metal dressing agent.
The using method of described noble metal dressing agent is: by the water-soluble solution of noble metal dressing agent, and according to the dose of 50 grams ~ 250 grams, ore per ton, add in breeze and soak, extraction time is 5 ~ 20 hours.
The using method of noble metal dressing agent of the present invention, lime can also be added and admix use, method is: will add dressing agent of the present invention after ore grinding, ore per ton adds dressing agent 50 grams ~ 250 grams, ore per ton adds 20 ~ 30 kilograms, lime, and per kilogram noble metal dressing agent adds water in advance 200 kilograms and dissolves, and mixes with breeze, lime, the peak period of ore extraction time is 5 ~ 12 hours, then by conventional method gold recovering silver-bearing copper.
Outstanding substantive distinguishing features and the significant progress of noble metal dressing agent of the present invention are:
1. can be widely used in the production in noble metal mine, immersion, the heap of the oxide ore of such as gold, silver and bronze, the sulphide ore of gold, silver and bronze drench, the industrial production industries such as plating can also be used in, substitute the medicine of hypertoxic Cymag, compared with the nontoxic cyaniding medicine that other are all, have that the property of medicine is stable, medicine environmental protection, the advantages such as cost is lower.
2. noble metal dressing agent toxicity of the present invention is low, and security is high.
3 add chlorination hydroxyl sodium salt and butyl xanthate, collecting agent can also be made, its collecting ability is stronger, it is the collecting agent being applicable to copper, lead, zinc, Ni sulphide mine, special in the complicated ore containing a small amount of sulphide ore, such as to the sulphide ore raw material containing partial oxidation copper, lead ore, its collecting ability is strong.
Detailed description of the invention
Embodiment 1
Get NaOH 8kg, sodium carbonate 12kg, urea 24kg and potassium ferrocyanide 14kg, mixes, be heated to 600-1000 DEG C, after molten state, be incubated 1h, be cooled to room temperature, pulverize, add 5kg chlorination hydroxyl sodium salt, 1kg potassium butyl xanthate mixes, obtain noble metal dressing agent.
Embodiment 2
Get potassium hydroxide 10kg, potash 14kg, urea 30kg and potassium ferrocyanide 16kg, mixes, is heated to 600-1000 DEG C, is incubated 1.5h, is cooled to room temperature, pulverize, add 6kg chlorination hydroxyl sodium salt, 2kg sodium n-butyl-xanthate C after molten state 4h 9oCSSNa, mixes, and obtains noble metal dressing agent.
Embodiment 3
Get potassium hydroxide 6kg, sodium acid carbonate 16kg, urea 36kg and potassium ferrocyanide 18kg, mixes, is heated to 600-1000 DEG C, is incubated 1.5h, is cooled to room temperature, pulverize, add 7kg chlorination hydroxyl sodium salt, 2kg sodium n-butyl-xanthate C after molten state 4h 9oCSSNa, to mix, obtain noble metal dressing agent.
Embodiment 4
Get potassium hydroxide 12kg, saleratus 8kg, urea 20kg and potassium ferrocyanide 12kg, mixes, is heated to 600-1000 DEG C, is incubated 2h, is cooled to room temperature, pulverize, add 4kg chlorination hydroxyl sodium salt, mix, obtain noble metal dressing agent after molten state.
Embodiment 5
Get NaOH 12kg, sodium acid carbonate 10kg, urea 40kg and potassium ferrocyanide 20kg, mixes, be heated to 600-1000 DEG C, after molten state, be incubated 2h, be cooled to room temperature, pulverize, add 8kg chlorination hydroxyl sodium salt, 3kg sodium isobutyl xanthan, mix, obtain noble metal dressing agent.
Embodiment 6
Get potassium hydroxide 6kg, sodium acid carbonate 16kg, urea 32kg and potassium ferrocyanide 18kg, mixes, is heated to 600-1000 DEG C, is incubated 1.5h, is cooled to room temperature, pulverize, add 6kg chlorination hydroxyl sodium salt, 5kg sodium n-butyl-xanthate C after molten state 4h 9oCSSNa, to mix, obtain noble metal dressing agent.
Use embodiment 1
Get 20 tons containing the gold certain Oxidized Gold Ore of 3.4 grams/ton and the aurosulfo ore of 0.56 gram/ton, add water and lime under agitation after pulverizing, then add the present invention 1000 grammes per square metre metal dressing agent, soak 20 hours, the liquid active carbon adsorption that then will leach, obtains 60.4 grams of gold after roasting, refinement.
Use embodiment 2
Get 20 tons of breezes containing gold 3.2 grams/ton, the breeze that argentiferous is 30.6 grams/ton, add the present invention 5000 grammes per square metre metal dressing agent, heavy metal dressing agent adds water in advance 200 kilograms and dissolves, mix with breeze, 400kg lime, soak 12 hours, then reclaimed by conventional method, obtain 46.4 grams of metallic gold, 517.7 grams of argents.
Use embodiment 3
Get ore deposit silver oxide and the silver sulfide ore of 20 tons of argentiferous 50.4 grams/ton, the present invention 2500 grammes per square metre metal dressing agent is added after pulverizing, heavy metal dressing agent adds water in advance 200 kilograms and dissolves, mix with breeze, 500kg lime, soak 5 hours, then reclaimed by conventional method, obtain 826.6 grams of argents.
Use embodiment 4
Get 20 tons of argentiferous 30.4 grams/ton, the ore that cupric is 60 grams/ton, the present invention 4000 grammes per square metre metal dressing agent is added after pulverizing, heavy metal dressing agent adds water in advance 200 kilograms and dissolves, mix with breeze, 560kg lime, soak 15 hours, then reclaimed by conventional method, obtain 522.9 grams of argents, 1026.4 grams of copper.
Comparative example
Get NaOH 8kg, sodium carbonate 12kg, urea 24kg and potassium ferrocyanide 14kg, mixes, is heated to 600-1000 DEG C, is incubated 1h, is cooled to room temperature, pulverize, obtain dressing agent A after molten state.
The noble metal dressing agent obtained by dressing agent A and embodiment 2 contains the breeze of gold 3.2 grams/ton to 20 tons, and the breeze that argentiferous is 30.6 grams/ton, leaches under similarity condition, and the noble metal dressing agent of embodiment 2 obtains 46.4 grams of metallic gold, 517.7 grams of silver; Dressing agent A obtains 44.2 grams of metallic gold, 503.4 grams of silver; This is because the noble metal dressing agent that embodiment 2 obtains contains chlorination hydroxyl sodium salt and sodium n-butyl-xanthate, it can leach the noble metal in noble metal sulphide, and therefore the yield of noble metal is high.
The noble metal dressing agent that other embodiment is produced also has good leaching rate to the precious metal ore containing sulfide.

Claims (5)

1. a noble metal dressing agent, is characterized in that, comprises the raw material of following parts by weight:
Alkali metal hydroxide 6 ~ 12;
Alkali carbonate 8 ~ 16;
Urea 20 ~ 40;
Potassium ferrocyanide 12 ~ 20;
Chlorination hydroxyl sodium salt 4 ~ 8;
Butyl xanthate 2 ~ 5;
Described alkali metal hydroxide is NaOH or potassium hydroxide or their mixture;
Described alkali carbonate is the composition of any one or they in sodium carbonate, potash, sodium acid carbonate or saleratus;
Described chlorination hydroxyl sodium salt chemical formula is Na 3cNOHCl;
Described butyl xanthate is sodium n-butyl-xanthate or potassium butyl xanthate.
2. the production method of noble metal dressing agent according to claim 1, it is characterized in that, alkali metal hydroxide, alkali carbonate, urea and potassium ferrocyanide are proportionally, mix, then be heated to 600 ~ 1000 DEG C, make material keep 1 ~ 2h in the molten state, be cooled to normal temperature, mix with chlorination hydroxyl sodium salt and butyl xanthate after pulverizing, obtain noble metal dressing agent.
3. the using method of noble metal dressing agent according to claim 1, is characterized in that, by the water-soluble solution of noble metal dressing agent, according to the dose of 50 grams ~ 250 grams, ore per ton, add in breeze and soak, extraction time is 5 ~ 20 hours.
4. the using method of noble metal dressing agent according to claim 1, it is characterized in that, noble metal dressing agent will be added after ore grinding, ore per ton adds noble metal dressing agent 50 grams ~ 250 grams, ore per ton adds 20 ~ 30 kilograms, lime, and per kilogram noble metal dressing agent adds water in advance 200 kilograms and dissolves, and mixes with breeze, lime, the peak period of ore extraction time is 5 ~ 12 hours, then by conventional method gold recovering silver-bearing copper.
5. noble metal dressing agent according to claim 1 at the oxide of gold, silver and copper or/and sulfide extracts the application in gold, silver and bronze.
CN201310401606.1A 2013-09-06 2013-09-06 Noble metals beneficiation agent and preparation method and application thereof Active CN103464305B (en)

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CN103861232B (en) * 2014-03-21 2017-05-24 南京市环境保护科学研究院 Stabilization chemical agent and processing method for processing nickel-containing dead catalyst
CN103981374B (en) * 2014-05-19 2015-11-18 中国科学院兰州化学物理研究所 A kind of environmentally friendly cyanate soaks the synthetic method of golden agent
CN108435438B (en) * 2018-05-11 2020-10-09 西安建筑科技大学 A kind of copper suppression inhibitor, preparation method and copper-bearing mineral flotation method
CN111926185A (en) * 2020-07-09 2020-11-13 福建闽航电子有限公司 Recycling process of precious metal

Citations (4)

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Publication number Priority date Publication date Assignee Title
EP0476078B1 (en) * 1990-02-23 1994-09-07 Cra Services Limited Extraction and recovery of gold
CN102121067A (en) * 2010-12-15 2011-07-13 广西富皇矿业有限公司 Nuisanceless oredressing additive as well as preparation method and application thereof
CN102166545A (en) * 2010-11-22 2011-08-31 阙明 Mineral dressing additive for gold mine and preparation method thereof
CN102321807A (en) * 2011-07-13 2012-01-18 广西富皇矿业有限公司 Production and using method of environmentally-friendly noble metal mineral processing reagent

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0476078B1 (en) * 1990-02-23 1994-09-07 Cra Services Limited Extraction and recovery of gold
CN102166545A (en) * 2010-11-22 2011-08-31 阙明 Mineral dressing additive for gold mine and preparation method thereof
CN102121067A (en) * 2010-12-15 2011-07-13 广西富皇矿业有限公司 Nuisanceless oredressing additive as well as preparation method and application thereof
CN102321807A (en) * 2011-07-13 2012-01-18 广西富皇矿业有限公司 Production and using method of environmentally-friendly noble metal mineral processing reagent

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Effective date of registration: 20180917

Address after: 530031 No. 119, Sha Street Park, Ting Jiang Road, Jiangnan District, Nanning, the Guangxi Zhuang Autonomous Region

Patentee after: Guangxi Zhong He Lian Ju Environmental Protection Technology Co., Ltd.

Address before: 530028 9 Yue Wan Road, Qingxiu District, Nanning, the Guangxi Zhuang Autonomous Region

Patentee before: Peace & Power Tech Co., Ltd.

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