CN109967228A - A kind of low-grade lead zinc ore comprehensive recovering process - Google Patents
A kind of low-grade lead zinc ore comprehensive recovering process Download PDFInfo
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- CN109967228A CN109967228A CN201910333847.4A CN201910333847A CN109967228A CN 109967228 A CN109967228 A CN 109967228A CN 201910333847 A CN201910333847 A CN 201910333847A CN 109967228 A CN109967228 A CN 109967228A
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- lead
- copper
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- zinc
- mixed
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- 238000000034 method Methods 0.000 title claims abstract description 19
- JQJCSZOEVBFDKO-UHFFFAOYSA-N lead zinc Chemical compound [Zn].[Pb] JQJCSZOEVBFDKO-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 239000012141 concentrate Substances 0.000 claims abstract description 41
- WIKSRXFQIZQFEH-UHFFFAOYSA-N [Cu].[Pb] Chemical compound [Cu].[Pb] WIKSRXFQIZQFEH-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000005188 flotation Methods 0.000 claims abstract description 26
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052802 copper Inorganic materials 0.000 claims abstract description 23
- 239000010949 copper Substances 0.000 claims abstract description 23
- 238000000227 grinding Methods 0.000 claims abstract description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 20
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 20
- 239000011701 zinc Substances 0.000 claims abstract description 20
- WGPCGCOKHWGKJJ-UHFFFAOYSA-N sulfanylidenezinc Chemical compound [Zn]=S WGPCGCOKHWGKJJ-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229940116901 diethyldithiocarbamate Drugs 0.000 claims abstract description 10
- LMBWSYZSUOEYSN-UHFFFAOYSA-N diethyldithiocarbamic acid Chemical compound CCN(CC)C(S)=S LMBWSYZSUOEYSN-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052949 galena Inorganic materials 0.000 claims abstract description 10
- 229910052742 iron Inorganic materials 0.000 claims abstract description 10
- XCAUINMIESBTBL-UHFFFAOYSA-N lead(ii) sulfide Chemical compound [Pb]=S XCAUINMIESBTBL-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000004064 recycling Methods 0.000 claims abstract description 10
- 238000000926 separation method Methods 0.000 claims abstract description 10
- 230000001965 increasing effect Effects 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 claims abstract description 4
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 claims abstract description 3
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 3
- 229940083025 silver preparation Drugs 0.000 claims abstract description 3
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 3
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 claims description 8
- 239000000575 pesticide Substances 0.000 claims description 5
- 229910052951 chalcopyrite Inorganic materials 0.000 claims description 4
- DVRDHUBQLOKMHZ-UHFFFAOYSA-N chalcopyrite Chemical compound [S-2].[S-2].[Fe+2].[Cu+2] DVRDHUBQLOKMHZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 238000010494 dissociation reaction Methods 0.000 claims description 2
- 230000005593 dissociations Effects 0.000 claims description 2
- 239000000178 monomer Substances 0.000 claims 1
- 239000011133 lead Substances 0.000 abstract description 28
- 238000011084 recovery Methods 0.000 abstract description 26
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 12
- 239000005864 Sulphur Substances 0.000 abstract description 12
- 239000002184 metal Substances 0.000 abstract description 12
- 229910052751 metal Inorganic materials 0.000 abstract description 12
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 7
- 239000011707 mineral Substances 0.000 abstract description 7
- 230000002708 enhancing effect Effects 0.000 abstract description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 10
- 229910052709 silver Inorganic materials 0.000 description 10
- 239000004332 silver Substances 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 3
- 229910020218 Pb—Zn Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- KYYKWNCRORCFJS-UHFFFAOYSA-N [Cu].[Pb].[Ag] Chemical compound [Cu].[Pb].[Ag] KYYKWNCRORCFJS-UHFFFAOYSA-N 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000031068 symbiosis, encompassing mutualism through parasitism Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
- B03D2203/04—Non-sulfide ores
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- Manufacture And Refinement Of Metals (AREA)
Abstract
Proposed by the present invention is a kind of low-grade lead zinc ore comprehensive recovering process.Copper concentrate, lead concentrate, zinc concentrate, iron concentrate and silver preparation concentrate are obtained by the process synthesis recycling that grinding fineness, the mixed choosing of collecting, separating flotation combine；Raw ore -200 mesh of grinding fineness in ore grinding is increased to 80%~90%, improves liberation degree of minerals, plays the effect of regrinding；Copper-lead, which mixes, extends flotation time when selecting, pulp density is 34%~38%, and reduction copper-lead is mixed to select the pH value in stage to 9.42~9.57, and the galena for avoiding floatability poor is suppressed, and adds selective collecting of the diethyldithiocarbamate enhancing to copper-lead, 19.5~20.5g/T of dosage；Cu-Pb separation recycling copper concentrate and lead concentrate are carried out by separating flotation after the mixed choosing of copper-lead；The mixed choosing of zinc sulphur is carried out after the mixed choosing of copper-lead again, the mixed choosing of zinc sulphur carries out zinc sulphur separation and recovery zinc concentrate and iron concentrate after separating flotation.The invention enables the synthetical recoveries of copper, lead, zinc, sulphur, silver-colored valuable metal to have industrial value.It is suitable for the comprehensive recovering process application as low-grade lead zinc ore.
Description
Technical field
Proposed by the present invention is the recovery method of ore dressing field, be mainly used in lead in low-grade lead zinc ore, zinc, copper,
The recycling of sulphur.Specifically a kind of low-grade lead zinc ore comprehensive recovering process.
Background technique
The domestic medium and small mineral deposit of Pb-Zn deposits is numerous, and ore type is complicated, and large ore deposit only accounts for 4.5%.And lean ore is more, rich ore
Few, structure construction is more, simple few with mineral composition complexity.Many ore disseminated grain sizes are subtle, and structure construction is complicated, belong to difficult
Ore type is selected, brings great difficulty to mineral processing production.In addition, abundant ore source is substantially exhausted since mine has been exploited for many years,
For the dilution increasingly of mine grade, the grade of lead zincification is insufficient, with traditional ore-dressing technique method, causes the choosing of low-grade lead zinc ore
The mine rate of recovery is low, and ore dressing added value is low, is not enough to that mine is maintained to survive.
Lead-zinc deposit material composition is complicated, and Associated Constituents are more altogether, and integral utilization space is big.Pb-Zn deposits cupric, lead, zinc, sulphur,
The a variety of valuable metals of silver, silver, which is only enriched in copper concentrate and lead concentrate in ore dressing process, just valuates, and is enriched to zinc concentrate
Without charge with the silver in iron concentrate, for a long time, the silver-colored rate of recovery only has 59~60% or so, wherein recycling silver-colored in copper concentrate
Rate 42~43% or so, the silver-colored rate of recovery 16.5~17% or so in lead concentrate.The silver-colored rate of recovery is relatively low on the whole, silver mainly with
Copper, lead symbiosis, preservation is in galena and chalcopyrite, -200 mesh 75% of original production process grinding fineness, dissociates insufficient, sudden strain of a muscle zinc
Mine, the galena and chalcopyrite for still having small part not dissociate in troilite particle take away part silver, in addition, original production process copper
The mixed choosing of lead plus ash suppression sulphur pH value about 9.8 are slightly biased big, make small part that can float poor galena and are suppressed, are lost to next section
Zinc sulphur is mixed to be chosen, and part silver is taken away.
Studied by integrated survey and ore material composition, targetedly in controlling proposals association copper, silver, sulphur,
Iron carries out circulative foam drilling fluid, is badly in need of walking out the road of a synthetical recovery.Increase the economic benefit of enterprise, effectively recycles mineral products money
Source.
Summary of the invention
In order to improve the rate of recovery of low-grade lead zinc ore, comprehensive recovery of lead, zinc, copper, sulphur, silver-colored valuable metal make low-grade
The synthetical recovery of lead-zinc ore is worth with industrial production, and the invention proposes a kind of low-grade lead zinc ore synthetical recovery sides
Method.This method is increased to 90% by 80% by -200 mesh of grinding fineness, improves the liberation degree of minerals of chalcopyrite, galena, reduces
Mutually containing in product；Extend flotation time, reduce the mixed pH value for selecting the stage of copper-lead, the galena for avoiding floatability poor is pressed down
System；Selective collecting of the selective pesticides diethyldithiocarbamate enhancing to copper-lead is introduced, the technology for solving poor value synthetical recovery is asked
Topic.
The solution adopted by the present invention to solve the technical problem is that:
The present invention is that the process synthesis recycling combined by grinding fineness, the mixed choosing of collecting, separating flotation obtains copper concentrate, lead essence
Mine, zinc concentrate, iron concentrate and silver preparation concentrate；I.e. raw ore -200 mesh of grinding fineness in ore grinding is increased to 80%~90%, improves yellow
The liberation degree of minerals of copper mine, galena plays the effect of regrinding, and reduces mutually containing in product；The mixed choosing of collecting is i.e. when copper-lead is mixed and selected
Extend flotation time, pulp density is 34%~38%, and reduction copper-lead is mixed to select the pH value in stage to 9.42~9.57, avoids floatability
Poor galena is suppressed, and choosing of the diethyldithiocarbamate enhancing to copper-lead is added on the basis of adding selective pesticides butylamine black powder
The collecting of selecting property, 19.5~20.5g/T of dosage；Cu-Pb separation recycling copper concentrate and lead essence are carried out by separating flotation after the mixed choosing of copper-lead
Mine；The mixed choosing of zinc sulphur is carried out after the mixed choosing of copper-lead again, the mixed choosing of zinc sulphur carries out zinc sulphur separation and recovery zinc concentrate and sulphur after separating flotation
Concentrate；The concentrated dewatering operation of the final tailing of flotation drains into Tailings Dam, realizes the dry row of tailing.
Good effect, since for grinding fineness to 80%~90%, copper-lead is mixed to select Shi Yanchang to the present invention in ore grinding using raw ore
Flotation time, pulp density are 34%~38%, reduce the mixed pH value for selecting the stage of copper-lead, add selection of the diethyldithiocarbamate enhancing to copper-lead
Property collecting；So that the synthetical recovery of copper, lead, zinc, sulphur, silver-colored valuable metal has industrial value.It is suitable for as low-grade lead zinc ore
The comprehensive recovering process application of stone.
Detailed description of the invention
Fig. 1 is production technological process of the present invention.
In figure, 1. raw ores, 2. ore grindings, 3. copper-leads are mixed to be selected, 4. Cu-Pb separations, 5. copper concentrates, 6. lead concentrates, and 7. zinc sulphur are mixed
Choosing, 8. zinc sulphur content are from, 9. zinc concentrates, 10. iron concentrates, 11. tailings.
Specific embodiment
Embodiment 1:
Raw ore -200 mesh of grinding fineness in ore grinding is increased to 80%；Extend flotation time when copper-lead is mixed and selected, pulp density is
34%, reduction copper-lead is mixed to select the pH value in stage to 9.42, and diethyldithiocarbamate increasing is added on the basis of adding selective pesticides butylamine black powder
By force to the selective collecting of copper-lead, dosage 19.5g/T；Cu-Pb separation, which is carried out, by separating flotation after the mixed choosing of copper-lead recycles copper concentrate
And lead concentrate；The mixed choosing of zinc sulphur is carried out after the mixed choosing of copper-lead again, the mixed choosing of zinc sulphur carries out zinc sulphur separation and recovery zinc essence after separating flotation
Mine and iron concentrate；The concentrated dewatering operation of the final tailing of flotation drains into Tailings Dam, realizes the dry row of tailing.
Actual measurement metal recovery rate data are as follows: copper, lead, zinc, sulphur, silver the rate of recovery respectively reach 65%, 75%, 78%, 50%,
60% or more.
Embodiment 2:
Raw ore -200 mesh of grinding fineness in ore grinding is increased to 90%；Extend flotation time when copper-lead is mixed and selected, pulp density is
38%, reduction copper-lead is mixed to select the pH value in stage to 9.57, and diethyldithiocarbamate increasing is added on the basis of adding selective pesticides butylamine black powder
By force to the selective collecting of copper-lead, dosage 20.5g/T；Cu-Pb separation, which is carried out, by separating flotation after the mixed choosing of copper-lead recycles copper concentrate
And lead concentrate；The mixed choosing of zinc sulphur is carried out after the mixed choosing of copper-lead again, the mixed choosing of zinc sulphur carries out zinc sulphur separation and recovery zinc essence after separating flotation
Mine and iron concentrate；The concentrated dewatering operation of the final tailing of flotation drains into Tailings Dam, realizes the dry row of tailing.
Actual measurement metal recovery rate data are as follows: copper, lead, zinc, sulphur, silver the rate of recovery respectively reach 65%, 75%, 78%, 50%,
60% or more.
The working principle of the invention:
1, grinding fineness and the experimental data of metal recovery rate compare:
2, the experimental data comparison of flotation time, pulp density and metal recovery rate:
3, the experimental data of diethyldithiocarbamate collecting copper-lead and metal recovery rate compares:
The features of the present invention:
By adjusting grinding process, increase grinding fineness, improve the unit degree of dissociation of valuable metal, reduces mutually containing in product；
Extend flotation time simultaneously, improves pulp density；Production treating capacity is improved, cost unit consumption is reduced；Copper-lead is selected using diethyldithiocarbamate
The feature selected, mixed to copper-lead that the stage is selected to add diethyldithiocarbamate, the metal recovery rate of Lai Tigao copper-lead silver reduces zinc sulphur and mutually contains, makes
Copper, lead, zinc, sulphur, silver-colored valuable metal obtain effective synthetical recovery, and have industrial value, the recycling of copper, lead, zinc, sulphur, silver
Rate respectively reaches 65%, 75%, 78%, 50%, 60% or more.
Claims (1)
1. a kind of low-grade lead zinc ore comprehensive recovering process, it is characterized in that: passing through grinding fineness, the mixed choosing of collecting, separating flotation
The process synthesis recycling combined obtains copper concentrate, lead concentrate, zinc concentrate, iron concentrate and silver preparation concentrate；
That is raw ore (1) -200 mesh of grinding fineness at ore grinding (2) by 80% is increased to 90%, improves the monomer of chalcopyrite, galena
Degree of dissociation plays the effect of regrinding, and reduces mutually containing in product；
Collecting is mixed to be selected i.e. in mixed choosing (3) the Shi Yanchang flotation time of copper-lead, and pulp density is 34%~38%, and reduction copper-lead is mixed to select the stage
PH value to 9.42~9.57, the galena for avoiding floatability poor is suppressed, in addition selective pesticides butylamine black powder
On the basis of add diethyldithiocarbamate and enhance selective collecting to copper-lead, 19.5~20.5g/T of dosage；
Cu-Pb separation (4) recycling copper concentrate (5) and lead concentrate (6) are carried out by separating flotation after the mixed choosing of copper-lead；After the mixed choosing of copper-lead
The mixed choosing (7) of zinc sulphur is carried out again, and the mixed choosing of zinc sulphur carries out zinc sulphur content from (8) recycling zinc concentrate (9) and iron concentrate after separating flotation
(10)；The final tailing of flotation (11) concentrated dewatering operation drains into Tailings Dam, realizes the dry row of tailing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910333847.4A CN109967228A (en) | 2019-04-24 | 2019-04-24 | A kind of low-grade lead zinc ore comprehensive recovering process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910333847.4A CN109967228A (en) | 2019-04-24 | 2019-04-24 | A kind of low-grade lead zinc ore comprehensive recovering process |
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| Publication Number | Publication Date |
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| CN109967228A true CN109967228A (en) | 2019-07-05 |
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| CN201910333847.4A Pending CN109967228A (en) | 2019-04-24 | 2019-04-24 | A kind of low-grade lead zinc ore comprehensive recovering process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113369019A (en) * | 2021-06-07 | 2021-09-10 | 矿冶科技集团有限公司 | Method for improving recovery rate of valuable metal |
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|---|---|---|---|---|
| CN101507951A (en) * | 2009-03-24 | 2009-08-19 | 西藏中凯矿业有限公司 | Mineral separation process capable of separating copper, lead, zinc polymetal sulphide ore |
| CN101961683A (en) * | 2010-08-31 | 2011-02-02 | 云南锡业集团（控股）有限责任公司 | Benification combined method of polymetallic sulphide ore containing copper, lead, zinc and tin |
| CN103301931A (en) * | 2013-06-14 | 2013-09-18 | 紫金矿业集团股份有限公司 | Beneficiation method for veinlet disseminated ore body type copper-lead-zinc-sulfur complex polymetallic ore |
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- 2019-04-24 CN CN201910333847.4A patent/CN109967228A/en active Pending
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| CN113369019A (en) * | 2021-06-07 | 2021-09-10 | 矿冶科技集团有限公司 | Method for improving recovery rate of valuable metal |
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Application publication date: 20190705 |
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