CN103071598A - Method for floating and recovering copper from copper smelting slag - Google Patents
Method for floating and recovering copper from copper smelting slag Download PDFInfo
- Publication number
- CN103071598A CN103071598A CN2013100348068A CN201310034806A CN103071598A CN 103071598 A CN103071598 A CN 103071598A CN 2013100348068 A CN2013100348068 A CN 2013100348068A CN 201310034806 A CN201310034806 A CN 201310034806A CN 103071598 A CN103071598 A CN 103071598A
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- CN
- China
- Prior art keywords
- copper
- flotation
- slag
- recovery
- ammonium salt
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 88
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 87
- 239000010949 copper Substances 0.000 title claims abstract description 87
- 239000002893 slag Substances 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000003723 Smelting Methods 0.000 title abstract description 5
- PHTQWCKDNZKARW-UHFFFAOYSA-N isoamylol Chemical compound CC(C)CCO PHTQWCKDNZKARW-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000005188 flotation Methods 0.000 claims abstract description 22
- 238000011084 recovery Methods 0.000 claims abstract description 21
- 150000003863 ammonium salts Chemical class 0.000 claims abstract description 17
- 239000007787 solid Substances 0.000 claims abstract description 15
- 239000012141 concentrate Substances 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 10
- 239000002002 slurry Substances 0.000 claims abstract description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 17
- 229910052708 sodium Inorganic materials 0.000 claims description 17
- 239000011734 sodium Substances 0.000 claims description 17
- KOVPITHBHSZRLT-UHFFFAOYSA-N 2-methylpropoxymethanedithioic acid Chemical compound CC(C)COC(S)=S KOVPITHBHSZRLT-UHFFFAOYSA-N 0.000 claims description 7
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 6
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical class CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 4
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical compound CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 claims description 4
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical group N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 4
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 4
- 229910052569 sulfide mineral Inorganic materials 0.000 claims description 4
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 claims description 3
- 235000019270 ammonium chloride Nutrition 0.000 claims description 3
- 238000004513 sizing Methods 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 14
- 239000011707 mineral Substances 0.000 abstract description 14
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000012991 xanthate Substances 0.000 abstract description 2
- 238000005987 sulfurization reaction Methods 0.000 abstract 3
- 229910052979 sodium sulfide Inorganic materials 0.000 abstract 2
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 abstract 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- 230000003213 activating effect Effects 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- FLVLHHSRQUTOJM-UHFFFAOYSA-M sodium;2-methylpropoxymethanedithioate Chemical compound [Na+].CC(C)COC([S-])=S FLVLHHSRQUTOJM-UHFFFAOYSA-M 0.000 abstract 1
- 238000009853 pyrometallurgy Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009867 copper metallurgy Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- -1 embedding Bu Tezheng Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention provides a method for floating and recovering copper from copper smelting slag. The method for floating and recovering copper from the copper smelting slag comprises the following steps of: adding inorganic ammonium salt, sodium sulfide and isoamylol into the slurry of the copper smelting slag until the pH (potential of hydrogen) value of ore pulp is 8-9; adding sodium isobutyl xanthate according to 0.01-0.03% of solid mass in the ore pulp; and carrying out normal floatation to obtain copper concentrate. The method performs the action of activating copper-containing mineral or metal copper, so that the surface of the copper-containing mineral is subjected to sulfuration reaction, especially the isoamylol is added to effectively clean the surface of the slag, the sulfuration reaction is more strengthened, a sulfuration film is more stable, the copper-containing mineral or the natural copper is activated, and the floatability of the copper-containing mineral or the natural copper is recovered and improved. In addition, high-grade xanthate collecting agent is added for collection so as to improve the copper recovery rate which is above 80%. According to the invention, the traditional floatation process flow does not need to be changed, only the inorganic ammonium salt, the sodium sulfide and the isoamylol need to be added in the flotation size mixing process, and therefore the method has the advantages of convenience in operation, low production cost and high copper recovery rate.
Description
Technical field
The present invention relates to a kind of from the pyrometallurgy copper slag method of flotation and recovery of copper, belong to the Mineral Processing Engineering technical field.
Background technology
Pyrometallurgy is to produce one of main technique of metallic copper from ore, and this technique certainly leads to a large amount of slags in the copper metallurgy process, and these slags not only take a large amount of places of storing up, and also produce simultaneously environmental pollution.At present, only this slag stored up of China just has thousands of tons of.But, in these slags, still containing copper, copper content about 0.3～5%, is a kind of valuable secondary resource generally.Because this slag is through again condensation of high-temperature fusion, copper has produced part chemical reaction and the physical and chemical process such as crystallization again, marked change has all occured in the mineral species of copper, embedding Bu Tezheng, phase character etc., its floatability matter is very poor, beneficiation method with routine is difficult to copper is wherein effectively reclaimed, mineral processing index is poor, very easily causes the loss of metal.
Summary of the invention
In order effectively to reclaim the copper in the copper slag, maximally utilise existing resource, the invention provides a kind of from the copper smelting by pyrometallurgy slag method of flotation and recovery of copper.
The present invention realizes by following technical proposal: a kind of from copper slag the method for flotation and recovery of copper, following each step of process: in the slip of copper slag, adding inorganic ammonium salt, vulcanized sodium and isoamyl alcohol to the pH value of ore pulp is 8～9, press again 0.1～0.3 ‰ amount of solid masses in the ore pulp, add Isobutylxanthic acid, after conventional flotation, namely obtain copper concentrate.
The slip of described copper slag be first defibrination to fineness for-0.074 millimeter account for 90～96%, sizing mixing to solid masses concentration is 20～45% slurry again.
The mass ratio of described inorganic ammonium salt, vulcanized sodium and isoamyl alcohol is 1～2:2～5:0.3～1.
The adding total amount of described inorganic ammonium salt, vulcanized sodium and isoamyl alcohol is copper slag 1000～6000g per ton.
Described size mixing to preferred solid masses concentration be 30～40%.
Described inorganic ammonium salt is ammonium sulfate, ammonium nitrate or ammonium chloride.
Described isoamyl alcohol is replaced by amylalcohol or butanols.
Institute's Isobutylxanthic acid of telling is replaced by other conventional sulfide mineral collector.
The inventive method is to add inorganic ammonium salt, vulcanized sodium and isoamyl alcohol in the slip of copper slag, THE RECOGNITION OF MAIN COPPER matter in the slag is activated, recover its floatability, and employing floatation process, add sulfide mineral collector and carry out collecting, the copper in the slag is reclaimed in flotation, and the rate of recovery is reached more than 80%.
The present invention has following advantages and effect: owing to added inorganic ammonium salt and vulcanized sodium in the slip after copper slag is levigate, can play the effect of activation copper-bearing mineral or metallic copper, make the copper-bearing mineral surface that vulcanization reaction occur, the adding of isoamyl alcohol is especially arranged, effective cleaning has been carried out on surface to slag, has more strengthened vulcanization reaction, and makes sulphide film more stable, thereby activated copper-bearing mineral or native copper, made its floatability recover and be improved; Add again senior xanthate collector and carry out collecting, thereby improved copper recovery, make it to reach 80% with.The inventive method need not to change existing flotation process, only needs to drop into inorganic ammonium salt and vulcanized sodium and isoamyl alcohol and get final product in existing flotation size mixing process, and easy to operate, production cost is low, and copper recovery is high.
The specific embodiment
Below in conjunction with embodiment the present invention is described further.
Embodiment 1
First the 1t copper slag is milled to fineness for-0.074 millimeter account for 90%, size mixing to solid masses concentration is the slip of 30% copper slag again, then the mass ratio by inorganic ammonium salt, vulcanized sodium and isoamyl alcohol is 1:2:0.5, adding 1000g ammonium sulfate, vulcanized sodium and isoamyl alcohol to the pH value of ore pulp is 8～9, press again 0.1 ‰ amount of solid masses in the ore pulp, add Isobutylxanthic acid 100 grams, through conventional one roughing, recleaning, scan for three times, after the technological process that chats returns successively, namely obtain copper concentrate.When soaking slag cupric 1% left and right sides, can obtain the copper concentrate cupric greater than 18g/t former, copper recovery is greater than 83% mineral processing index.
Embodiment 2
First copper slag 1t is milled to fineness for-0.074 millimeter account for 90～93%, size mixing to solid masses concentration is the slip of 45% copper slag again, then the mass ratio by inorganic ammonium salt, vulcanized sodium and amylalcohol is 2:5:1, adding 3000g ammonium chloride, vulcanized sodium and amylalcohol to the pH value of ore pulp is 9, press again 0.25 ‰ amount of solid masses in the ore pulp, add Isobutylxanthic acid 250 grams, after conventional flotation, namely obtain copper concentrate.When soaking slag and containing golden 0.5% left and right sides, can obtain the flotation concentrate cupric greater than 15g/t former, copper recovery is greater than 82% mineral processing index.
Embodiment 3
First the copper slag 1t of the oxygenation efficiency 70% of cupric 3.5%, copper is milled to fineness for-0.074 millimeter account for 96%, size mixing to solid masses concentration is the slip of 20% copper slag again, then the mass ratio by inorganic ammonium salt, vulcanized sodium and butanols is 1:2:0.3, adding 6000g ammonium sulfate, vulcanized sodium and butanols to the pH value of ore pulp is 8～9, press again 0.15 ‰ amount of solid masses in the ore pulp, add conventional sulfide mineral collector 150 grams, after conventional flotation, namely obtain copper concentrate.The copper concentrate cupric is greater than 17g/t, and copper recovery is greater than 86% mineral processing index.
Embodiment 4
First copper slag 1t is milled to fineness for-0.074 millimeter account for 93～96%, size mixing to solid masses concentration is the slip of 40% copper slag again, then the mass ratio by inorganic ammonium salt, vulcanized sodium and isoamyl alcohol is 1.5:3:0.5, adding 5000g ammonium nitrate, vulcanized sodium and isoamyl alcohol to the pH value of ore pulp is 8, press again 0.3 ‰ amount of solid masses in the ore pulp, add Isobutylxanthic acid 300g, after conventional flotation, namely obtain copper concentrate.The copper concentrate cupric is greater than 16g/t, and copper recovery is greater than 85% mineral processing index.
Claims (8)
1. the method for a flotation and recovery of copper from copper slag, it is characterized in that through following each step: in the slip of copper slag, adding inorganic ammonium salt, vulcanized sodium and isoamyl alcohol to the pH value of ore pulp is 8～9, press again 0.1～0.3 ‰ amount of solid masses in the ore pulp, add Isobutylxanthic acid, after conventional flotation, namely obtain copper concentrate.
According to claim 1 from copper slag the method for flotation and recovery of copper, it is characterized in that: the slip of described copper slag be first defibrination to fineness for-0.074 millimeter account for 90～96%, sizing mixing to solid masses concentration is 20～45% slurry again.
According to claim 1 from copper slag the method for flotation and recovery of copper, it is characterized in that: the mass ratio of described inorganic ammonium salt, vulcanized sodium and isoamyl alcohol is 1～2:2～5:0.3～1.
According to claim 1 from copper slag the method for flotation and recovery of copper, it is characterized in that: the adding total amount of described inorganic ammonium salt, vulcanized sodium and isoamyl alcohol is copper slag 1000～6000g per ton.
According to claim 1 from copper slag the method for flotation and recovery of copper, it is characterized in that: described size mixing to solid masses concentration be 30～40%.
According to claim 1 from copper slag the method for flotation and recovery of copper, it is characterized in that: described inorganic ammonium salt is ammonium sulfate, ammonium nitrate or ammonium chloride.
According to claim 1 from copper slag the method for flotation and recovery of copper, it is characterized in that: described isoamyl alcohol is replaced by amylalcohol or butanols.
According to claim 1 from copper slag the method for flotation and recovery of copper, it is characterized in that: institute's Isobutylxanthic acid of telling is replaced by other conventional sulfide mineral collector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100348068A CN103071598A (en) | 2013-01-30 | 2013-01-30 | Method for floating and recovering copper from copper smelting slag |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100348068A CN103071598A (en) | 2013-01-30 | 2013-01-30 | Method for floating and recovering copper from copper smelting slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103071598A true CN103071598A (en) | 2013-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013100348068A Pending CN103071598A (en) | 2013-01-30 | 2013-01-30 | Method for floating and recovering copper from copper smelting slag |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105149104A (en) * | 2015-09-01 | 2015-12-16 | 西北矿冶研究院 | Beneficiation method for treating copper smelting slag |
| CN111632746A (en) * | 2020-04-28 | 2020-09-08 | 西北矿冶研究院 | Beneficiation method for improving copper recovery rate of copper oxide acid leaching residue |
| CN115672558A (en) * | 2022-10-31 | 2023-02-03 | 昆明理工大学 | Method for recovering zinc oxide ore by full-size-fraction enhanced vulcanization-classification flotation |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4324654A (en) * | 1978-10-12 | 1982-04-13 | The Hanna Mining Company | Recovery of copper from copper oxide minerals |
| CN101658818A (en) * | 2008-08-29 | 2010-03-03 | 浙江巨化化工矿业有限公司 | Floatation method of pyrites |
| CN102688807A (en) * | 2012-06-19 | 2012-09-26 | 昆明理工大学 | Floatation method for carrying out temperature control and mud suppression on mixed copper ore with high oxygenation rate and high mud content |
-
2013
- 2013-01-30 CN CN2013100348068A patent/CN103071598A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4324654A (en) * | 1978-10-12 | 1982-04-13 | The Hanna Mining Company | Recovery of copper from copper oxide minerals |
| CN101658818A (en) * | 2008-08-29 | 2010-03-03 | 浙江巨化化工矿业有限公司 | Floatation method of pyrites |
| CN102688807A (en) * | 2012-06-19 | 2012-09-26 | 昆明理工大学 | Floatation method for carrying out temperature control and mud suppression on mixed copper ore with high oxygenation rate and high mud content |
Non-Patent Citations (3)
| Title |
|---|
| 刑春燕: "铵盐－孔雀石－硫化钠体系催化氧化机理探讨", 《中国优秀硕士学位论文全文数据库》 * |
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| 徐明等: "铜渣浮选回收铜的研究进展", 《金属矿山》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105149104A (en) * | 2015-09-01 | 2015-12-16 | 西北矿冶研究院 | Beneficiation method for treating copper smelting slag |
| CN111632746A (en) * | 2020-04-28 | 2020-09-08 | 西北矿冶研究院 | Beneficiation method for improving copper recovery rate of copper oxide acid leaching residue |
| CN115672558A (en) * | 2022-10-31 | 2023-02-03 | 昆明理工大学 | Method for recovering zinc oxide ore by full-size-fraction enhanced vulcanization-classification flotation |
| CN115672558B (en) * | 2022-10-31 | 2023-08-18 | 昆明理工大学 | Method for recycling zinc oxide ore through full-size-fraction reinforced vulcanization-classified floatation |
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Application publication date: 20130501 |