CN101392326B - Method for recovering gold from all-sliming cyanidation gold extraction slag - Google Patents
Method for recovering gold from all-sliming cyanidation gold extraction slag Download PDFInfo
- Publication number
- CN101392326B CN101392326B CN2008102335377A CN200810233537A CN101392326B CN 101392326 B CN101392326 B CN 101392326B CN 2008102335377 A CN2008102335377 A CN 2008102335377A CN 200810233537 A CN200810233537 A CN 200810233537A CN 101392326 B CN101392326 B CN 101392326B
- Authority
- CN
- China
- Prior art keywords
- gold
- slurry
- extraction slag
- organic ketone
- sliming cyanidation
- 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.)
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 229910052737 gold Inorganic materials 0.000 title claims abstract description 61
- 239000010931 gold Substances 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 33
- 239000002893 slag Substances 0.000 title claims description 27
- 238000000605 extraction Methods 0.000 title claims description 19
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 25
- 150000002576 ketones Chemical class 0.000 claims abstract description 15
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims abstract description 15
- 238000005188 flotation Methods 0.000 claims abstract description 13
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims abstract description 9
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims abstract description 9
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims abstract description 9
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000005642 Oleic acid Substances 0.000 claims abstract description 9
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000007787 solid Substances 0.000 claims abstract description 9
- 229940049964 oleate Drugs 0.000 claims abstract description 6
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical group CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 238000006467 substitution reaction Methods 0.000 claims description 2
- 238000011084 recovery Methods 0.000 abstract description 11
- 239000002002 slurry Substances 0.000 abstract description 10
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 9
- 239000011707 mineral Substances 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000012141 concentrate Substances 0.000 abstract description 3
- 238000002386 leaching Methods 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 abstract description 2
- 238000005189 flocculation Methods 0.000 abstract description 2
- 230000016615 flocculation Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 235000011149 sulphuric acid Nutrition 0.000 abstract 3
- 239000001117 sulphuric acid Substances 0.000 abstract 3
- 238000006386 neutralization reaction Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 229910000365 copper sulfate Inorganic materials 0.000 description 3
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 3
- 239000008396 flotation agent Substances 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 238000004513 sizing Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910052569 sulfide mineral Inorganic materials 0.000 description 3
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- FFRBMBIXVSCUFS-UHFFFAOYSA-N 2,4-dinitro-1-naphthol Chemical compound C1=CC=C2C(O)=C([N+]([O-])=O)C=C([N+]([O-])=O)C2=C1 FFRBMBIXVSCUFS-UHFFFAOYSA-N 0.000 description 1
- 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 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- UYZMAFWCKGTUMA-UHFFFAOYSA-K iron(3+);trioxido(oxo)-$l^{5}-arsane;dihydrate Chemical compound O.O.[Fe+3].[O-][As]([O-])([O-])=O UYZMAFWCKGTUMA-UHFFFAOYSA-K 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 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 invention provides a method for recovering gold from all-slime cyanidation leaching gold residue. The method includes the flotation technology which is characterized in that: in the slurry of the all-slime cyanidation leaching gold residue, sulphuric acid and organic ketone are added till the pH value of the slurry is 7 to 8, wherein, the sulphuric acid and the organic ketone are added according to the mass ratio of 2 to 5:1 to 2; simultaneously, according to 0.02 permile to 0.05 permile of the solid mass of the slurry, oleic acid or oleate is added, and after the flotation technology, gold concentrate is obtained. The addition of the sulphuric acid and the organic ketone takes the function of neutralization of the alkalescence of the slurry and the surface cleaning of minerals, and furthermore, activates gold-bearing minerals, the floatability of which is recovered and increased. The oleic acid or the oleate can cause partial unactivated gold-bearing minerals with fine grains to produce flocculation, and then become concentrate products which float off with other gold-bearing minerals, thereby improving the gold recovery rate which can reach over 90 percent. The method has simple technology, convenient operation, low manufacturing cost and high gold recovery rate.
Description
Technical field
The present invention relates to a kind of method that from all-sliming cyanidation gold extraction slag, reclaims gold, belong to the technique of preparing field.
Background technology
All-sliming cyanidation gold extraction slag is the method that adopts full mud to macerate, and remaining tailings behind the recovery gold wherein still contains gold, and Gold Content more than 1g/t, is a kind of secondary resource generally.Because this soaks the strong effect that slag is subjected to highly basic and prussiate, its year, gold mineral also was subjected to the intensive inhibition, even variation has also taken place in its surface properties, be oxidized to scorodite etc. as carrying golden yellow ore deposit iron, its flotability is very poor, the granularity of all sliming cyanidation is superfine in addition, is difficult to gold is wherein carried out efficient recovery with conventional beneficiation method, very easily causes the loss of gold.
Summary of the invention
Gold in the efficient recovery all-sliming cyanidation gold extraction slag maximally utilises existing resource, the invention provides a kind of method that extracts gold from from all-sliming cyanidation gold extraction slag.
The inventive method is to add sulfuric acid, organic ketone and oleic acid (or oleate) in the slip of all-sliming cyanidation gold extraction slag, to be activated by the golden sulfide that carries of highly basic and prussiate inhibition, recover its floatability, and employing " folder is poly-" floatation process, reclaim the gold in the slag, and the rate of recovery is reached more than 90%.
The technical solution adopted for the present invention to solve the technical problems is: a kind of method that reclaims gold from all-sliming cyanidation gold extraction slag, it is characterized in that: in the slip of all-sliming cyanidation gold extraction slag, adding sulfuric acid and organic ketone to the pH value of ore pulp is 7～8, wherein, sulfuric acid and organic ketone add by 2～5: 1～2 mass ratio, press 0.02～0.05 ‰ amount of solid masses in the ore pulp simultaneously, adding oleic acid or oleate, after the floatation process flotation, must contain gold ore.
Described organic ketone is acetone or butanone.
Described sulfuric acid is the acceptable salts acid substitution also.
The pulp density of described all-sliming cyanidation gold extraction slag is 20～45%, and optimum concn is 30～40%.
Described floatation process adopts the flotation process of prior art.
The present invention has following advantage and effect: owing to added sulfuric acid and organic ketone in the slip of all-sliming cyanidation gold extraction slag, the effect of cleaning mineral surface simultaneously with ore pulp alkalescence in can playing, this effect has more been strengthened in the adding of especially organic ketone, thereby activated a year gold mineral, made its flotability recover and be improved; The adding of oleic acid or oleate simultaneously, part is activated and the carrying gold mineral and produce flocculation of fine particles after, become the concentrate product and be entrained in other year of the gold mineral come-up together, thereby improved the gold rate of recovery, made it to reach more than 90%, the inventive method need not to change existing flotation process, only needing to drop in process is sized mixing in existing flotation sulfuric acid and organic ketone and oleic acid gets final product, easy to operate, production cost is low, gold rate of recovery height.
Embodiment
Below in conjunction with embodiment the present invention is described further.
Embodiment 1
Mass ratio by 2: 1, sulfuric acid and acetone are joined in the slip that concentration is 35% all-sliming cyanidation gold extraction slag, simultaneously by the amount of solid per ton in the slurry, add 20 gram oleic acid, stirred 5～10 minutes through sizing mixing, slurry pH transfers to 7～8, then according to the ore pulp chemical ingredients, and by solid masses per ton in the ore pulp, add the conventional flotation agent such as the copper sulfate of convention amount, sulfide mineral collector, pore forming materials etc. carry out flotation, and flotation process adopts one roughing, recleaning, scan for three times, the technical process that chats returns successively is soaking the slag of 2g/t from Gold Content, obtain the gold ore of Gold Content greater than 50g/t, the gold rate of recovery is greater than 90%.
Embodiment 2
This embodiment handles, and to soak slag be the slag that soaks behind the raw ore dump leaching gold-extracting, at first this is soaked slag and be milled down to-200 orders 90～93%, then behind the furnishing ore pulp, mass ratio by 5: 2, it is in 45% the slip that hydrochloric acid and organic ketone are joined concentration, simultaneously by the amount of solid per ton in the slurry, add 50 gram sodium oleates, stirred 5～10 minutes through sizing mixing, slurry pH transfers to 7～8, then according to the ore pulp chemical ingredients, and by solid masses per ton in the ore pulp, the conventional flotation agent such as the copper sulfate that add convention amount, sulfide mineral collector, pore forming materials etc. carry out flotation, flotation process adopts the common process flow process, at Gold Content is that the former of 1.6g/t soaked in the slag, obtains the gold ore of Gold Content greater than 40g/t, and the gold rate of recovery is greater than 90%.
Embodiment 3
Mass ratio by 3: 1, sulfuric acid and organic ketone are joined in the slip that concentration is 20% all-sliming cyanidation gold extraction slag, simultaneously by the amount of solid per ton in the slurry, add 28 gram oleic acid, stirred 5～10 minutes through sizing mixing, slurry pH transfers to 7～8, then according to the ore pulp chemical ingredients, and by solid masses per ton in the ore pulp, add the conventional flotation agent such as the copper sulfate of convention amount, sulfide mineral collector, pore forming materials etc. carry out flotation, and flotation process adopts the common process flow process, is that the former of 3g/t soaked in the slag at Gold Content, obtain the gold ore of Gold Content greater than 80g/t, the gold rate of recovery is greater than 90%.
Claims (4)
1. method that from all-sliming cyanidation gold extraction slag, reclaims gold, comprise floatation process, it is characterized in that: in the slip of all-sliming cyanidation gold extraction slag, adding sulfuric acid and organic ketone to the pH value of ore pulp is 7～8, and wherein, sulfuric acid and organic ketone add by 2～5: 1～2 mass ratio, press 0.02～0.05 ‰ amount of solid masses in the ore pulp simultaneously, add oleic acid or oleate, after the floatation process flotation, get gold ore.
2. the method that reclaims gold from all-sliming cyanidation gold extraction slag according to claim 1 is characterized in that described organic ketone is acetone or butanone.
3. the method that reclaims gold from all-sliming cyanidation gold extraction slag according to claim 1 is characterized in that described sulfuric acid acceptable salts acid substitution.
4. the method that reclaims gold from all-sliming cyanidation gold extraction slag according to claim 1, the pulp density that it is characterized in that described all-sliming cyanidation gold extraction slag is 20～45%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102335377A CN101392326B (en) | 2008-11-06 | 2008-11-06 | Method for recovering gold from all-sliming cyanidation gold extraction slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102335377A CN101392326B (en) | 2008-11-06 | 2008-11-06 | Method for recovering gold from all-sliming cyanidation gold extraction slag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101392326A CN101392326A (en) | 2009-03-25 |
| CN101392326B true CN101392326B (en) | 2010-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102335377A Expired - Fee Related CN101392326B (en) | 2008-11-06 | 2008-11-06 | Method for recovering gold from all-sliming cyanidation gold extraction slag |
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| CN (1) | CN101392326B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013140299A2 (en) | 2012-03-20 | 2013-09-26 | Mintails Mining S A (Pty) Limited | Treatment of acid mine drainage |
| CN103831165B (en) * | 2014-03-18 | 2016-04-27 | 湖南黄金洞矿业有限责任公司 | High containing arsenic gold cyanidation tailings method for innocent treatment |
| CN104946902A (en) * | 2015-06-25 | 2015-09-30 | 长春黄金研究院 | Method for balancing cyanide in all-sliming cyanided carbon slurry gold extraction process |
| CN107744884B (en) * | 2017-09-30 | 2019-11-08 | 昆明理工大学 | A kind of method of cyanide gold-leaching tailings flotation recycling gold |
| CN107952590B (en) * | 2017-11-30 | 2019-09-13 | 长沙三博矿业科技有限公司 | The method of gold is recycled from cyanidation tailings |
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- 2008-11-06 CN CN2008102335377A patent/CN101392326B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101392326A (en) | 2009-03-25 |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20100616 Termination date: 20121106 |