CN101696469A - Method for separating multi-element alloy of lead, bismuth, gold, silver and copper - Google Patents
Method for separating multi-element alloy of lead, bismuth, gold, silver and copper Download PDFInfo
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- CN101696469A CN101696469A CN200910095112A CN200910095112A CN101696469A CN 101696469 A CN101696469 A CN 101696469A CN 200910095112 A CN200910095112 A CN 200910095112A CN 200910095112 A CN200910095112 A CN 200910095112A CN 101696469 A CN101696469 A CN 101696469A
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- Prior art keywords
- bismuth
- gold
- lead
- alloy
- silver
- 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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- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 239000010931 gold Substances 0.000 title claims abstract description 27
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000004332 silver Substances 0.000 title claims abstract description 26
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 229910001152 Bi alloy Inorganic materials 0.000 title claims abstract description 21
- 239000010949 copper Substances 0.000 title claims abstract description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 229910000881 Cu alloy Inorganic materials 0.000 title claims abstract description 15
- 229910001316 Ag alloy Inorganic materials 0.000 title claims abstract description 13
- 229910001020 Au alloy Inorganic materials 0.000 title claims abstract description 13
- 229910001325 element alloy Inorganic materials 0.000 title claims abstract description 13
- 229910052797 bismuth Inorganic materials 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 11
- 238000004821 distillation Methods 0.000 claims abstract description 10
- 229910045601 alloy Inorganic materials 0.000 claims description 18
- 239000000956 alloy Substances 0.000 claims description 18
- 239000002994 raw material Substances 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 241000209456 Plumbago Species 0.000 claims description 8
- 239000010439 graphite Substances 0.000 claims description 8
- 238000010792 warming Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 5
- 229910001097 yellow gold Inorganic materials 0.000 claims description 5
- 239000010930 yellow gold Substances 0.000 claims description 5
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 238000005194 fractionation Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 abstract description 14
- 238000005292 vacuum distillation Methods 0.000 abstract description 2
- 229910000510 noble metal Inorganic materials 0.000 abstract 3
- 229910000978 Pb alloy Inorganic materials 0.000 abstract 1
- 229910052737 gold Inorganic materials 0.000 description 13
- 229910052709 silver Inorganic materials 0.000 description 13
- 239000010970 precious metal Substances 0.000 description 8
- 229910052802 copper Inorganic materials 0.000 description 6
- 238000009835 boiling Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 229910000906 Bronze Inorganic materials 0.000 description 2
- 239000010974 bronze Substances 0.000 description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- BWFPGXWASODCHM-UHFFFAOYSA-N copper monosulfide Chemical compound [Cu]=S BWFPGXWASODCHM-UHFFFAOYSA-N 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000001117 sulphuric acid Substances 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
Abstract
The invention relates to a method for separating a multi-element alloy of lead, bismuth, gold, silver and copper, which adopts a vacuum distillation method to treat the multi-element alloy, wherein the distillation temperature is 1,050 to 1,100 DEG C, the distillation time is 60 to 80min and the vacuum degree in a furnace is 5 to 15 Pa. Materials can be separated into a volatile (an alloy of lead and bismuth) and a residue (an alloy of gold, silver and copper). In the separated product, noble metals are gathered in 6 to 7 times; the recovery rate of each noble metal is over 99 percent; the loss of the noble metals is low; and the recovery rates of the lead and the bismuth are 98 percent and 98.5 percent respectively.
Description
One, technical field:
The present invention relates to a kind of method of separating multi-element alloy of lead, bismuth, gold, silver and copper, belong to the vacuum metallurgy technology field.
Two, background technology
Bullion content is higher in the multi-element alloy of lead, bismuth, gold, silver and copper, need reclaim purification.Element is of a great variety in this alloy, complicated component, so its treatment process should make every effort to flow process brief, produce continuously, facility compact, all kinds of returning charge be few, with short production cycle, to improve the metal direct yield, reduce metal loss and fund and overstock.Present this multicomponent alloy of known processing mainly adopts the operational path that reclaims except that the golden this step-by-step processing of bismuth → copper removal → desilver → carry, emphasis.The common method of removing bismuth mainly is converter oxidation blowing, and the oxidation sludge that obtains bismuth carries out retailoring again.The recovery pyrometallurgical adopts and adds sulphur copper removal method, the method that wet method adopts dilute sulphuric acid to leach, and the method that the recovery of silver often adopts S-WAT leaching or ammoniacal liquor to leach, the extracting method of gold has extraction, displacement, reduction, 717 negatively charged ion absorption etc.The entire treatment flow process is more loaded down with trivial details, and the precious metal gold and silver all is to be put into flow process to reclaim at last again, and in the whole recovery process, the gold and silver loss is bigger.Adopt vacuum distillation method to handle this multicomponent alloy, distillation can be divided into alloy yellow gold and lead bismuth alloy two portions more up hill and dale through a step, and gold, silver and bronze content is low in the lead bismuth alloy, need not further recovery.This novel method helps the later stage each valuable element is reclaimed, and simplifies treatment scheme, has reduced the circulation of gold and silver in whole flow process, has reduced element loss.Adopt technical process such as Fig. 1 of this this multicomponent alloy of art breading:
Three, summary of the invention
The purpose of this invention is to provide a kind of method of separating multi-element alloy of lead, bismuth, gold, silver and copper.Adopt the method for vacuum distilling to handle multicomponent alloy, distillation temperature is 1050～1100 ℃, and distillation time is 60～80min, and vacuum tightness is 5～15Pa in the stove, feed separation can be become volatile matter (plumbous, bismuth alloy) and residue (gold and silver, copper alloy).In the product after the separation, precious metal has obtained 6～7 times enrichment, and all more than 99%, precious metal losses is less for the rate of recovery, and plumbous, the bismuth rate of recovery is respectively 98% and 98.5%.
The technical scheme of invention:
The present invention is achieved through the following technical solutions.
The raw material multi-element alloy of lead, bismuth, gold, silver and copper is put into plumbago crucible and is placed on vacuum oven, vacuum tightness in the stove is evacuated to 5～15Pa, beginning heats up with the speed of 5 ℃/min, when temperature in the stove rises to 300～450 ℃ of raw material fusing points, constant temperature 30～50min, speed with 15 ℃/min is warming up to 900～950 ℃ again, follow-up continuing of constant temperature 10～20min is warming up to 1050～1100 ℃, constant temperature fractionation by distillation 40～80min, the plumbous bismuth steam that evaporates is constantly overflowed from liquid alloy and is obtained condensation at condensate pans, and powered-down begins cooling, continues to guarantee vacuum tightness in the stove, prevent that material is oxidized, when temperature in the stove is reduced to 60～100 ℃, close vacuum pump, material is got in blow-on, the product that remains in the plumbago crucible is a yellow gold, is called residue.Product on the condensate pans is the lead bismuth alloy that evaporates, and is called volatile matter.
Realize that the isolating ultimate principle of multicomponent alloy vacuum distilling is under the same terms, different elements have different vapour pressures, and lead, the steaming pressure ratio gold and silver of bismuth, the vapour pressure height of copper evaporate from alloy earlier easily; Under the vacuum condition, the boiling point of all elements all can reduce, by the control distillation temperature, make the high gold and silver of boiling point, copper keep liquid form, and low-boiling lead, bismuth element are gaseous form and evaporate from alloy, thereby reach the purpose that plumbous, bismuth and precious metal gold and silver, copper are separated; Under the vacuum condition, do not have oxygen and oxidizing atmosphere in the stove, metal is simple substance, can be not oxidized.
Advantage of comparing with known technology and positively effect:
1 through the single flash processing, and alloy is separated into two parts more fully: volatile matter (plumbous, bismuth alloy) and residue (gold and silver, copper alloy), and precious metal gold and silver and valuable element lead, bismuth etc. all obtain enrichment in various degree;
2 products that obtain are not oxide compounds, but all exist with alloy morphology, help the later stage further to separate or prepare other alloy;
3 alloys precious metal wherein separates with other valuable elements, helps like this recovery of plumbous bismuth and the recovery of gold, silver and bronze are separated, and has reduced the circulation of precious metal in the whole recovery operation, has reduced loss.And reduced impurity element in each removal process, and improved organic efficiency, reduced the consumption of other additive in the removal process.
Four, embodiment
Embodiment 1: used material component sees Table 1 in the test.
Table 1 raw material main component weight percent
2000g raw material multi-element alloy of lead, bismuth, gold, silver and copper is put into plumbago crucible and is placed on vacuum oven, vacuum tightness in the stove is evacuated to 10Pa, beginning heats up with the speed of 5 ℃/min, when temperature in the stove rises to 450 ℃ of raw material fusing points, constant temperature 30min, speed with 15 ℃/min is warming up to 950 ℃ again, follow-up continuing of constant temperature 10min is warming up to 1100 ℃, constant temperature fractionation by distillation 60min, the plumbous bismuth steam that evaporates is constantly overflowed from liquid alloy and is obtained condensation at condensate pans, and powered-down begins cooling, continues to guarantee vacuum tightness in the stove, prevent that material is oxidized, when temperature in the stove is reduced to 60 ℃, close vacuum pump, material is got in blow-on, the product that remains in the plumbago crucible is a yellow gold, is called residue.Product on the condensate pans is the lead bismuth alloy that evaporates, and is called volatile matter.
The product composition that obtains sees Table 2.
The product main component weight percent that table 2 obtains
Embodiment 2:
Table 3 material main component weight percent
Concrete implementation step is as follows:
2000g raw material multi-element alloy of lead, bismuth, gold, silver and copper is put into plumbago crucible and is placed on vacuum oven, vacuum tightness in the stove is evacuated to 5Pa, beginning heats up with the speed of 5 ℃/min, when temperature in the stove rises to 350 ℃ of raw material fusing points, constant temperature 40min, speed with 15 ℃/min is warming up to 900 ℃ again, follow-up continuing of constant temperature 15min is warming up to 1050 ℃, constant temperature fractionation by distillation 80min, the plumbous bismuth steam that evaporates is constantly overflowed from liquid alloy and is obtained condensation at condensate pans, and powered-down begins cooling, continues to guarantee vacuum tightness in the stove, prevent that material is oxidized, when temperature in the stove is reduced to 80 ℃, close vacuum pump, material is got in blow-on, the product that remains in the plumbago crucible is a yellow gold, is called residue.Product on the condensate pans is the lead bismuth alloy that evaporates, and is called volatile matter.The product composition that obtains sees Table 4.
The product main component weight percentage that table 4 obtains
By above two embodiment as can be seen, adopt the vacuum distilling method to handle this multicomponent alloy, precious metal gold and silver, copper obtain effective enrichment and recovery, the rate of recovery is more than 99%, the rate of recovery of lead, bismuth element is also more than 99%, the Precious Metals-Gold silver-bearing copper separates thoroughly with valuable elements such as lead, bismuths, helps the later stage operation respectively they to be reclaimed, and operation simplifies the operation.
Claims (2)
1. method of separating multi-element alloy of lead, bismuth, gold, silver and copper, it is characterized in that: it is achieved through the following technical solutions, the raw material multi-element alloy of lead, bismuth, gold, silver and copper is put into plumbago crucible and is placed on vacuum oven, vacuum tightness in the stove is evacuated to 5～15Pa, beginning heats up with the speed of 5 ℃/min, when temperature in the stove rises to 300～450 ℃ of raw material fusing points, constant temperature 30～50min, speed with 15 ℃/min is warming up to 900～950 ℃ again, follow-up continuing of constant temperature 10～20min is warming up to 1050～1100 ℃, constant temperature fractionation by distillation 40～80min, the plumbous bismuth steam that evaporates is constantly overflowed from liquid alloy and is obtained condensation at condensate pans, and powered-down begins cooling, continues to guarantee vacuum tightness in the stove, prevent that material is oxidized, when temperature in the stove is reduced to 60～100 ℃, close vacuum pump, material is got in blow-on, the product that remains in the plumbago crucible is a yellow gold, is called residue.Product on the condensate pans is the lead bismuth alloy that evaporates, and is called volatile matter.
2. the method for the described separation multi-element alloy of lead, bismuth, gold, silver and copper of root a tree name claim 1, it is characterized in that: described raw material main component weight percent is Ag 30.25, and Au 3.47, and Cu 6.72, Pb 34.81, and Bi 21.28, or Ag3.11, and Au 0.0259, Cu 1.69, and Pb 74.29, and Bi 14.35.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910095112A CN101696469A (en) | 2009-10-29 | 2009-10-29 | Method for separating multi-element alloy of lead, bismuth, gold, silver and copper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910095112A CN101696469A (en) | 2009-10-29 | 2009-10-29 | Method for separating multi-element alloy of lead, bismuth, gold, silver and copper |
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| CN101696469A true CN101696469A (en) | 2010-04-21 |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101914681A (en) * | 2010-07-27 | 2010-12-15 | 乐清市瑞集环保科技有限公司 | Pollution-free method for treating copper, lead and silver-containing material |
| CN102373336A (en) * | 2011-11-03 | 2012-03-14 | 昆明理工大学 | Method for separating copper and silver from dross produced by producing copper from smelting lead |
| CN103397200A (en) * | 2013-08-23 | 2013-11-20 | 杨先凯 | Method for removing lead, zinc, arsenic, antimony, bismuth and tin from copper matte |
| CN104018000A (en) * | 2014-06-19 | 2014-09-03 | 湖南华信有色金属有限公司 | Process for separating and treating noble lead materials in vacuum |
| CN104018009A (en) * | 2014-06-19 | 2014-09-03 | 湖南华信有色金属有限公司 | Separating and purifying technology for bismuth metal |
| CN104109766A (en) * | 2014-07-31 | 2014-10-22 | 永兴鑫裕环保镍业有限公司 | Technology for separating and purifying bismuth from lead-bismuth alloy |
| CN106367609A (en) * | 2016-10-28 | 2017-02-01 | 昆明理工大学 | Vacuum-refining purification method for raw gold |
| CN107058752A (en) * | 2017-03-15 | 2017-08-18 | 西安建筑科技大学 | A kind of method of rhenium in use vacuum distillation furnace enrichment method calcining molybdenum ore concentrate flue dust |
| CN107760879A (en) * | 2017-10-23 | 2018-03-06 | 金川集团股份有限公司 | A kind of method of twin furnace linkage processing Complicated Copper bismuth material |
| CN110760688A (en) * | 2019-10-23 | 2020-02-07 | 金川集团股份有限公司 | Method for deeply removing impurities and enriching precious metals in complex lead-bismuth alloy |
| CN111635995A (en) * | 2020-06-09 | 2020-09-08 | 内蒙古兴安银铅冶炼有限公司 | Treatment process of silver-copper-bismuth alloy |
| CN112176196A (en) * | 2020-10-12 | 2021-01-05 | 昆明理工大学 | Method for separating and purifying gold, silver and copper alloy |
| CN113846222A (en) * | 2021-10-13 | 2021-12-28 | 昆明理工大学 | Method for recovering valuable metals in copper anode slime |
| CN113981225A (en) * | 2021-09-28 | 2022-01-28 | 温州伟达贵金属粉体材料有限公司 | Method for selectively separating and recovering silver from silver-nickel alloy copper-based contact waste |
| CN115491509A (en) * | 2022-08-31 | 2022-12-20 | 永兴县鸿福金属有限公司 | Vacuum purification method for multi-stage extraction of refined bismuth |
-
2009
- 2009-10-29 CN CN200910095112A patent/CN101696469A/en active Pending
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101914681A (en) * | 2010-07-27 | 2010-12-15 | 乐清市瑞集环保科技有限公司 | Pollution-free method for treating copper, lead and silver-containing material |
| CN102373336A (en) * | 2011-11-03 | 2012-03-14 | 昆明理工大学 | Method for separating copper and silver from dross produced by producing copper from smelting lead |
| CN102373336B (en) * | 2011-11-03 | 2014-05-07 | 昆明理工大学 | Method for separating copper and silver from dross produced by producing copper from smelting lead |
| CN103397200A (en) * | 2013-08-23 | 2013-11-20 | 杨先凯 | Method for removing lead, zinc, arsenic, antimony, bismuth and tin from copper matte |
| CN103397200B (en) * | 2013-08-23 | 2015-06-10 | 阳谷祥光铜业有限公司 | Method for removing lead, zinc, arsenic, antimony, bismuth and tin from copper matte |
| CN104018000A (en) * | 2014-06-19 | 2014-09-03 | 湖南华信有色金属有限公司 | Process for separating and treating noble lead materials in vacuum |
| CN104018009A (en) * | 2014-06-19 | 2014-09-03 | 湖南华信有色金属有限公司 | Separating and purifying technology for bismuth metal |
| CN104018009B (en) * | 2014-06-19 | 2015-05-27 | 湖南华信有色金属有限公司 | Separating and purifying technology for bismuth metal |
| CN104109766A (en) * | 2014-07-31 | 2014-10-22 | 永兴鑫裕环保镍业有限公司 | Technology for separating and purifying bismuth from lead-bismuth alloy |
| CN106367609A (en) * | 2016-10-28 | 2017-02-01 | 昆明理工大学 | Vacuum-refining purification method for raw gold |
| CN107058752A (en) * | 2017-03-15 | 2017-08-18 | 西安建筑科技大学 | A kind of method of rhenium in use vacuum distillation furnace enrichment method calcining molybdenum ore concentrate flue dust |
| CN107760879A (en) * | 2017-10-23 | 2018-03-06 | 金川集团股份有限公司 | A kind of method of twin furnace linkage processing Complicated Copper bismuth material |
| CN110760688A (en) * | 2019-10-23 | 2020-02-07 | 金川集团股份有限公司 | Method for deeply removing impurities and enriching precious metals in complex lead-bismuth alloy |
| CN111635995A (en) * | 2020-06-09 | 2020-09-08 | 内蒙古兴安银铅冶炼有限公司 | Treatment process of silver-copper-bismuth alloy |
| CN111635995B (en) * | 2020-06-09 | 2021-04-09 | 内蒙古兴安银铅冶炼有限公司 | Treatment process of silver-copper-bismuth alloy |
| CN112176196A (en) * | 2020-10-12 | 2021-01-05 | 昆明理工大学 | Method for separating and purifying gold, silver and copper alloy |
| CN112176196B (en) * | 2020-10-12 | 2022-05-27 | 昆明理工大学 | Method for separating and purifying gold, silver and copper alloy |
| CN113981225A (en) * | 2021-09-28 | 2022-01-28 | 温州伟达贵金属粉体材料有限公司 | Method for selectively separating and recovering silver from silver-nickel alloy copper-based contact waste |
| CN113846222A (en) * | 2021-10-13 | 2021-12-28 | 昆明理工大学 | Method for recovering valuable metals in copper anode slime |
| WO2023061389A1 (en) * | 2021-10-13 | 2023-04-20 | 昆明理工大学 | Recovery method for valuable metal in copper anode mud |
| CN115491509A (en) * | 2022-08-31 | 2022-12-20 | 永兴县鸿福金属有限公司 | Vacuum purification method for multi-stage extraction of refined bismuth |
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Open date: 20100421 |