CN105536981B - A kind of technique recycling gold, silver, sulphur from castaway slag - Google Patents

A kind of technique recycling gold, silver, sulphur from castaway slag Download PDF

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Publication number
CN105536981B
CN105536981B CN201510918603.4A CN201510918603A CN105536981B CN 105536981 B CN105536981 B CN 105536981B CN 201510918603 A CN201510918603 A CN 201510918603A CN 105536981 B CN105536981 B CN 105536981B
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ore pulp
floating agent
fine powder
powder solution
section
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CN105536981A (en
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方世中
叶永乐
郭小峰
雒彩军
方俊文
许海敏
董宁宁
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Henan Gold Industry Technology Research Institute Co., Ltd.
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Lingbao Jinyuan Chenguang Nonferrous Mining Co Ltd
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    • 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
    • B03B9/06—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse
    • B03B9/061—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse the refuse being industrial
    • 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
    • B03D1/001—Flotation agents
    • B03D1/018—Mixtures of inorganic and organic compounds
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/02—Preparation of sulfur; Purification
    • C01B17/06—Preparation of sulfur; Purification from non-gaseous sulfides or materials containing such sulfides, e.g. ores
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B11/00—Obtaining noble metals
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • 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
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/60—Glass recycling

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Environmental & Geological Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)

Abstract

A kind of technique recycling gold, silver, sulphur from castaway slag, include the following steps: (1) first by castaway slag add water become ore pulp that concentration is 70-80wt% and levigate -300 mesh reach 65% or more after send and a group formula cyclone is pumped by beating pump to hollander tub separates, the ore pulp that -300 mesh account for 60% or more flows into deep wimble thickener from top, and remaining ore pulp, which flows out from bottom and returns to ball mill, to be continued to regrind；(2) enter the solid-liquid separation on ore pulp of deep wimble thickener, the liquid that overflow goes out returns to ball mill, the underflow of bottom outflow is to flotation device, it floating agent is added sweeps an essence simultaneously through one thick two and obtain fine powder solution, fine powder solution, which passes through beating pump again and is pumped into diaphragm filter press, filters out fine powder, and filtrate returns to deep wimble thickener.After this technique largely will carry out floating and enriching containing golden castaway slag, the metals such as gold, silver, sulphur are recycled by acidizing fired metallurgical system, resource reutilization is realized, improves Business Economic Benefit, reduce environmental pollution.

Description

A kind of technique recycling gold, silver, sulphur from castaway slag
Technical field
The invention belongs to castaway slag recycling fields, and in particular to a kind of technique that gold, silver, sulphur are recycled from castaway slag.
Background technique
China has just carried out the large scale mining of gold since 1970s and has selected smelting.But by gold smelting at that time The limitation of technology level, the recovery process of gold are substantially gold containing ore by broken, ball milling, table concentration or add cyaniding Sodium carries out reacting under conditions of lime does protection alkali the complex compound for generating a kind of gold through techniques such as zinc dust precipitations, is finally melted It is smelt gold, but due to the limitation of technology, element sulphur is almost without recycling, and the golden rate of recovery is only between 65~70%, silver The rate of recovery only between 40~45%, it is a large amount of mention gold containing golden castaway slags after discarded and heap is stored in Tailings Dam.These are discarded containing gold Slag between analysis 10~12wt% of sulfur-bearing, 6~8g/t, 80~100g/t of argentiferous containing gold, is resulted in waste of resources and environmental pollution.
Summary of the invention
The technique that the object of the present invention is to provide a kind of to recycle gold, silver, sulphur from castaway slag.
Based on above-mentioned purpose, the present invention is adopted the following technical scheme that:
A kind of technique recycling gold, silver, sulphur from castaway slag, includes the following steps:
(1) add water to become the ore pulp that concentration is 70-80wt% castaway slag first to enter ball mill and levigate reach to -300 mesh To after 65% or more, send and cyclone group is pumped by beating pump to hollander tub is separated, the flow of slurry flowed out from cyclone apex Enter deep wimble thickener, the ore pulp of cyclone bottom outflow, which returns to ball mill, to be continued to regrind；
(2) enter the solid-liquid separation on ore pulp of deep wimble thickener, the liquid that overflow goes out returns to ball mill, and the underflow of bottom outflow arrives Flotation device, while floating agent is added sweeps a cleaner flotation through one thick two and going out fine powder solution, fine powder solution is pumped by beating pump again Diaphragm filter press filters out fine powder, and filtrate returns to deep wimble thickener.
In step (2), for the floating agent based on castaway slag per ton in flotation device, the dosage of each component is as follows: six inclined phosphorus Sour 200~300 g/t of sodium, waterglass 2kg/t, ethyl ammonia sulfate 50g/t, 30~50g/t of copper sulphate, sodium n-butyl xanthate and isoamyl Base sodium xanthate mass ratio 1:2,200~300 g/t of additional amount, 50~100 g/t of terpenic oil；Each component is weighed in proportion and is mixed Up to floating agent.
In step (2), described one thick two sweeps a smart whole process carries out in flotation device, and specific steps are directed to concentration and are It is added in the ore pulp of 40wt% after accounting for the floating agent of floating agent gross mass 70% and enters one section of roughing of flotation device, after roughing Primary fine powder solution progress is selected, obtains fine powder solution, is added to the waste residue slurry after roughing and accounts for the floating of floating agent gross mass 20% Select and enter one section after medicament and scan, one section scan after miberal powder solution be back to one section of roughing, the waste residue slurry after scanning to one section Be added and enter two sections after accounting for the floating agent of floating agent gross mass 10% and scan, two sections scan after miberal powder solution be back to one Section scan, two sections scan after waste residue slurry filters pressing at waste residue outlet.
After this technique largely will carry out floating and enriching containing golden castaway slag, gold, silver, sulphur are recycled by acidizing fired metallurgical system Equal metals, realize resource reutilization, improve Business Economic Benefit, reduce environmental pollution.
Detailed description of the invention
Fig. 1 is the apparatus structure schematic diagram in invention,
In figure, 1. castaway slags, 2. ball mills, 3. first hollander tubs, 4. first beating pumps, 5. cyclone groups, 6. depths are bored dense Close machine, 7. flotation devices, 8. floating agents, 9. third hollander tubs, 10. third beating pumps, 11. diaphragm filter press, 12. gold medals Fine powder (product), 13. second hollander tubs, 14. filter pressing pumps, 15. filter presses, 16. waste residues.
Specific embodiment
Technical solution of the present invention is described in further detail below in conjunction with specific embodiment, but protection model of the invention It encloses and is not limited thereto.
Embodiment 1
As shown in Figure 1, it is a kind of from castaway slag recycle gold, silver, sulphur device, including ball mill 2 and by pipeline successively The first hollander tub 3, the first beating pump 4, cyclone group 5, deep wimble thickener 6, flotation device 7 of connection, the exit of ball mill 2 is set There is the first hollander tub 3, cyclone group 5 is connected in series by several cyclones, and each cyclone apex and bottom are respectively provided with one A outlet, cyclone apex outlet be connected with the import of deep wimble thickener 6, the import phase of cyclone outlet at bottom and ball mill 2 Even, one outlet, 6 top exit of deep wimble thickener and the import phase with ball mill 2 are respectively provided at the top and bottom of deep wimble thickener 6 Even, 6 outlet at bottom of deep wimble thickener is connected with the import of flotation device 7, and there are two outlets for flotation device 7: the outlet of slag slurry and fine powder Taphole, slag slurry the second hollander tub 13 of outlet connection, fine powder taphole connect third hollander tub 9, the second hollander tub 13 Successively be connected with filter pressing pump 14, filter press 15 by pipeline, third hollander tub 9 by pipeline successively with third beating pump 10, every The outlet of filter press membrane 11, filter press 15 and diaphragm filter press 11 is connected with the import of deep wimble thickener 6.
A kind of technique recycling gold, silver, sulphur from castaway slag, includes the following steps:
(1) 15 tons of 10~12wt% of sulfur-bearing, 6~8 g/t containing gold, 80~100g/t of argentiferous, mine amount castaway slags 1 are sent first Entering ball mill 2 plus water becomes ore pulp that concentration is 70-80wt% and after levigate -300 mesh reaches 65% or more, send to the first hollander tub 3 are pumped into cyclone group described in cyclone group 5(by the first beating pump 4 is connected in series by several cyclones, each cyclone Top and bottom are respectively provided with one outlet, and cyclone apex outlet is connected with the import of deep wimble thickener 6, cyclone outlet at bottom It is connected with the import of ball mill 2) it is separated, deep wimble thickener is flowed into from the ore pulp of top output relatively thin (- 300 mesh account for 60%) 6, thicker ore pulp return 2 import of ball mill, which is flowed out, from bottom continues to regrind；
(2) enter the solid-liquid separation on ore pulp of deep wimble thickener 6, the liquid that overflow goes out returns to 2 import of ball mill to adjust The floating agent 8 that ore milling concentration, the underflow that bottom is flowed out to flotation device 7, while addition account for floating agent gross mass 70% is [described floating Select medicament based on castaway slag per ton in flotation device, the additional amount of each component is as follows: 200~300 g/t of calgon, waterglass (sodium silicate aqueous solution of 30 ~ 50wt%) 2kg/t, ethyl ammonia sulfate 50g/t, 30~50g/t of copper sulphate, sodium n-butyl xanthate and isoamyl Base sodium xanthate mass ratio 1:2,200~300 g/t of additional amount, 50~100 g/t of terpenic oil weigh each component, and mix in proportion It is even, in use, water need to be first dissolved in floating agent, add, the dosage of water is 9 ~ 10 times of floating agent quality] enter float afterwards One section of roughing for selecting machine 7, the primary fine powder solution progress after roughing is selected, obtains fine powder solution, adds to the waste residue slurry after roughing Enter to account for after the floating agent of floating agent gross mass 20% to enter one section and scan, one section scan after miberal powder solution be back to one section Roughing, the floating agent that the waste residue slurry addition after scanning to one section accounts for floating agent gross mass 10% enter two sections and scan, and two sections are swept Miberal powder solution after choosing is back to one section and scans, two sections scan after waste residue slurry through the second hollander tub 13 and filter pressing pump 14 to filters pressing After 15 filters pressing of machine, waste residue 16 stacks outward transport, and fine powder solution enters third hollander tub 9, then is pumped into diaphragm by third beating pump 10 Filter press 11 filters out the fine powder 12 that weight is 5~6 tons, and filtrate returns to deep wimble thickener 6.Fine powder 12 after enrichment is sent into acidification Roasting metallurgical system is used as ore matching.Fine powder after enrichment reaches 19.5g/t through detection Gold grade, and silver-colored grade reaches 189g/t, Sulfur grade reaches 30.4wt%, and ult rec gold is up to 93%, and for silver up to 70%, the rate of recovery of sulphur effectively realizes resource up to 92% It recycles.

Claims (1)

1. a kind of technique for recycling gold, silver, sulphur from castaway slag, which comprises the steps of:
(1) add water to become the ore pulp that concentration is 70-80wt% castaway slag first to enter ball mill and levigate reach to -300 mesh It after 65% or more, send and cyclone group is pumped by beating pump to hollander tub is separated, the ore pulp flowed out from cyclone apex flows into Deep wimble thickener, the ore pulp of cyclone bottom outflow, which returns to ball mill, to be continued to regrind；
(2) enter the solid-liquid separation on ore pulp of deep wimble thickener, the liquid that overflow goes out returns to ball mill, the underflow that bottom is flowed out to flotation Machine, while floating agent is added sweeps a cleaner flotation through one thick two and going out fine powder solution, fine powder solution passes through beating pump again and is pumped into diaphragm Filter press filters out fine powder, and filtrate returns to deep wimble thickener；The floating agent is based on castaway slag dry weight per ton in flotation device, respectively The dosage of component is as follows: 200~300g/t of calgon, waterglass 2kg/t, ethyl ammonia sulfate 50g/t, 30~50g/ of copper sulphate T, sodium n-butyl xanthate and isopentyl sodium xanthate 1:2 in mass ratio are added, 200~300g/t of additional amount, 50~100g/t of terpenic oil； Each component is weighed in proportion and is mixed up to floating agent；Described one thick two sweeps a smart whole process carries out in flotation device, has Body step is directed to enter flotation device after the floating agent for accounting for floating agent gross mass 70% is added in the ore pulp that concentration is 40wt% One section of roughing, primary fine powder solution after roughing carries out selected, obtains fine powder solution, is added and accounts for into the waste residue slurry after roughing After the floating agent of floating agent gross mass 20% enter one section scan, one section scan after miberal powder solution be back to one section of roughing, It is scanned after the floating agent for accounting for floating agent gross mass 10% is added in waste residue slurry after scanning to one section into two sections, two sections are swept Miberal powder solution after choosing is back to one section and scans, two sections scan after waste residue slurry filters pressing at waste residue outlet.
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* Cited by examiner, † Cited by third party
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CN106191458A (en) * 2016-07-08 2016-12-07 中信重工机械股份有限公司 A kind of process reclaiming coarse gold in grinding circuit in advance
CN113337721A (en) * 2021-04-22 2021-09-03 浙江省遂昌金矿有限公司 Process for recovering gold and silver from smelting furnace slag
CN114192273B (en) * 2021-11-29 2024-08-02 浙江遂昌汇金有色金属有限公司 Harmless and recycling treatment process for solid waste containing noble metal
CN114178055B (en) * 2021-11-29 2024-08-02 浙江遂昌汇金有色金属有限公司 Process for efficiently recovering silver from smelting waste slag
CN115430516B (en) * 2022-08-31 2023-06-16 云南黄金矿业集团股份有限公司 Method for treating pyrite roasting slag water washing liquid containing gold, silver and copper

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CN103736595A (en) * 2013-12-30 2014-04-23 河南豫光锌业有限公司 Method for improving grade of silver concentrate recovered through zinc leaching residue flotation
CN103816990A (en) * 2014-02-19 2014-05-28 哈巴河金坝矿业有限公司 Method and device for comprehensively recycling gold flotation tailings
CN104258977A (en) * 2014-08-06 2015-01-07 哈巴河金坝矿业有限公司 Regrinding and rescreening method and device of gold floating tailings

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CN102002601A (en) * 2009-08-28 2011-04-06 山东金洲矿业集团有限公司 Method for extracting gold and silver
CN101856635A (en) * 2010-04-26 2010-10-13 青岛黄金铅锌开发有限公司 Method using mineral dressing backwater to float and to recover gold, silver, lead and zinc in cyanidation tailings of gold mine
CN103706464A (en) * 2013-12-29 2014-04-09 北票市金海矿业有限公司 Method for extracting gold from gold tailings
CN103736595A (en) * 2013-12-30 2014-04-23 河南豫光锌业有限公司 Method for improving grade of silver concentrate recovered through zinc leaching residue flotation
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CN104258977A (en) * 2014-08-06 2015-01-07 哈巴河金坝矿业有限公司 Regrinding and rescreening method and device of gold floating tailings

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Address after: 472500 North Section of North Building of Tonggou District, Southwest corner, at the intersection of Xinling Street and Hangu Road, East Lingbao City, Sanmenxia City, Henan Province

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Address before: 472500 Middle Section of Dingyuan Road, Daonan Industrial Zone, Lingbao City, Sanmenxia City, Henan Province

Patentee before: LINGBAO JINYUAN CHENGUANG NONFERROUS MINING CO., LTD.