CN108187616A - A kind of special magnetic charcoal of gold and silver and its manufacturing method - Google Patents
A kind of special magnetic charcoal of gold and silver and its manufacturing method Download PDFInfo
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- CN108187616A CN108187616A CN201711468176.XA CN201711468176A CN108187616A CN 108187616 A CN108187616 A CN 108187616A CN 201711468176 A CN201711468176 A CN 201711468176A CN 108187616 A CN108187616 A CN 108187616A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0225—Compounds of Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt
- B01J20/0229—Compounds of Fe
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
- B01J20/28009—Magnetic properties
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- 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
- C22B11/04—Obtaining noble metals by wet processes
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- 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
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/22—Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means, or by thermal decomposition
- C22B3/24—Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means, or by thermal decomposition by adsorption on solid substances, e.g. by extraction with solid resins
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- 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
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- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Materials Engineering (AREA)
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- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Inorganic Chemistry (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Carbon And Carbon Compounds (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The particulate coal activated carbon kind of gold loaded carbon being grated in magnetic separator recycling tailing can be used the present invention provides a kind of suitable " carbon-in-pulp process " technique --- the special magnetic charcoal of gold and silver and its manufacturing method.The present invention improves the rate of recovery of the precious metal ores resources such as gold, silver, increases the yield of gold, silver and reduces production cost, while " carbon-in-pulp process " extraction of gold process technology is enable to improve and be promoted.
Description
Technical field
The present invention relates to a kind of smelting processes, are especially adapted for use in the noble metals extraction such as gold, silver field " carbon-in-pulp process " and carry
The special magnetic charcoal of the magnetic coaly activated carbon material, that is, gold and silver of zona granulosa and its manufacturing method of gold process.
Background technology
Magnetic gold extraction by CIP process is pioneering and patented in nineteen forty-seven by N. Hai Deli etc. in nineteen forty-six（US
Pat.,No.2479930）.
After this patent transfers American Cyanamid Co., once carried out in 1948 in state of Nevada Ge Teqieer pilot plants
The continuous pilot-plant test of 1.81 ~ 2.72t/h ores and carried out 2.27t/d ore deposits in Arizona State Sa Haoli towers pilot plant
The long run test of stone, all succeeds.But it encounters trouble in commercial Application, and reason has two：First, their magnetism
Charcoal preparation method be activated carbon granule surface sodium metasilicate be bonded one layer of magnetic-particle and be made, the hole of sodium metasilicate energy charcoal and reduce
The absorption property of charcoal；Second, magnetic-particle is bonded in charcoal particle surface, once grinding off, charcoal particle just loses magnetism and makes magnetic separation
The rate of recovery reduces.Since appeal defect fails so far for industrial production.
The primary solvent drug that modern times dissolve extraction gold and silver from ore has cyanide, thiocarbamide, liquid chlorine, rhodanate, sulphur
Thiosulfate, polysulfide and halide etc..Due to dilute scattered property of the precious metal elements such as gold and silver, no matter with above-mentioned any
Solvent extracts gold and silver, just carries that solution concentration is all very low, therefore is typically necessary the intermediate processing steps of an enrichment, and rich
The active charcoal absorption of method or ion exchange resin absorption of collection, what modern prevailing technology route was taken mostly is lived with graininess
Property charcoal absorption " carbon-in-pulp process " its representative processes flow see attached drawing 1.Its main processes is to add in granular active carbon
With in the ore pulp of extraction in multistage continuously stirs slot after counter current absorption gold and silver, with every screening separate out gold loaded carbon go desorption,
Regeneration, tailing discharge after processing.From the above process it is seen that its shortcoming, that is, active carbon particle passes through together with ore pulp
After stirring, broken and abrasion is inevitably generated, the broken charcoal under sieving is just and tailing discharges together and causes damages.Even more serious
It is to have poor in table, abrasion and the opposite load gold amount higher of broken charcoal after activated carbon adsorption.Gold extracting carbon is wanted at present
1, equilibrium adsorption 24 hours in every cubic metre of solution containing Jin Yike are asked, the load gold capacity of charcoal should reach every kilogram of charcoal containing gold 25
Gram；2nd, charcoal rolls 24 hours in bottle, and wear rate should be less than percent 2.One kilogram of charcoal, which is often worn, by this standard meter just loses 25
Gram gold is worth about 7000 yuans.In addition at present in extraction gold and silver industry the activated carbon that uses be substantially coconut husk charcoal or
Fruit stone charcoal, since the yield of its raw material is few and carbonization rate is low, cost and price are all higher.
Invention content
It is an object of the invention to avoid above-mentioned deficiency, provide a kind of suitable " carbon-in-pulp process " technique can use magnetic separator
The particulate coal activated carbon kind of gold loaded carbon being grated in recycling tailing --- the special magnetic charcoal of gold and silver and its manufacturing method.
The rate of recovery of the precious metal ores resource such as gold, silver can be improved, increase the yield of gold, silver and reduces production cost.Make " charcoal simultaneously
Slurry processes " extraction of gold process technology is able to improve and be promoted.
To achieve these goals, the present invention uses following technical scheme：
A kind of manufacturing method of the special magnetic charcoal of gold and silver, activating process technology path can take the vapour method of physics,
The auxiliary reagent activation method of chemistry can be taken；The making step of the special magnetic charcoal of the gold and silver is followed successively by：
A. it will crush（Dry method, wet method）It is less than the Magnetic reagent of bituminous coal powder and 100 purposes containing ferrous material of 100 mesh to grain size
Powder（If its aqueous solution can be used using soluble iron salt material）It is bituminous coal powder according to mass ratio（Butt）：Magnetic reagent（With
Ferric oxide content meter）=100：1~10 ratio adds in mixing machine and is sufficiently mixed；
B. the mixture come out by mixing machine enters blender, adds in suitable binding agent or water herein（According to the laboratory test report of coal
Depending on）It stirs；
C. the raw material come out by blender enters forming press and is squeezed into particle of the grain size size range at 1 to 10 millimeters；
D. by forming press come out particulate material drying, screening after enter carbonized activating furnace 900 degrees Celsius in vapor exist
Under conditions of handle 60 minutes, release after cooling screened again, packaging " gold and silver special magnetic charcoal ".
The special magnetic charcoal of the gold and silver, using bituminous coal powder as primary raw material, to contain ferrous material as Magnetic reagent；Coal dust and magnetic
The mass ratio of agent is：Bituminous coal powder is than Magnetic reagent=100 to 1~10.
The Magnetic reagent can be di-iron trioxide, ferroso-ferric oxide, iron hydroxide, ferric trichloride, frerrous chloride, sulfuric acid Asia
The compounding of one or more therein in iron, ferric sulfate, ferrous sulfide, ferriammonium sulfate and metal iron powder.
The special magnetic charcoal grain shape of the gold and silver includes spherical shape, ellipsoid, cylindric, square strip and amorphous；
Its grain size range is at 1 to 10 millimeters.
Due to the adoption of the above technical scheme, the present invention has the following advantages and effects：
1st, raw material are bituminous coal powders used by the manufacturing method of the present invention, and not only the wide price of raw material is low, and activated carbon is produced
The estimated performance of product and the Modulatory character of quality are good, acording to the requirement of user can be to the intensity of product, the size of particle, particle
Power of shape and magnetism etc. is more conveniently regulated and controled；
2nd, product yield of the invention it is higher than coconut husk and fruit stone thus its to manufacture cost also more much lower than coconut husk charcoal and fruit stone charcoal, use
This charcoal substitution coconut husk charcoal puies forward its golden equipment at " carbon-in-pulp process " and technological process varies without, and only need to add a magnetic separator in end just
The gold loaded carbon being grated in recyclable tailing, economic benefit are self-evident；
3rd, ferric trichloride, frerrous chloride, ferrous sulfate, ferric sulfate, vulcanization in Magnetic reagent used by the manufacturing method of the present invention
Ferrous saturated aqueous solution can be additionally used in the magnetic regenerated carbon weakened or non magnetic shell class activity after desorption
The increase of charcoal is magnetic.
Description of the drawings
Fig. 1 is the flow diagram of carbon slurry therapy extracting gold；
Fig. 2 is the process flow chart of the present invention.
Specific embodiment
Embodiment 1
By the ferric oxide powder of the Datong coal dry powder of 100 mesh and 100 mesh, with 100:5 ratio is added in mixing machine together fills
It is put into blender after dividing mixing, suitable water is added according to the situation of coal（About 30%）After stirring evenly, it is pressed into through forming press
3 millimeters of cylindrical pellets 3-8 millimeters long of diameter, after drying, screening, minus sieve powder returns to blender；Dry particle is sent
Enter carbonized activating furnace to handle 60 minutes under the conditions of existing for vapor at 900 degrees Celsius, release screened again, packaging after cooling
" gold and silver special magnetic charcoal ".
Activated carbon made of in this way is suitable with coconut husk charcoal to the rate of adsorption silver-colored in silver nitrate solution, but its adsorption capacity
Bigger than coconut husk charcoal by 50%, wear-resistant strength is also less higher than coconut husk charcoal, and it is easy to be drawn by magnetic separator.
Embodiment 2
The Datong coal dry powder of 100 mesh is stirred evenly together with 50 degrees Celsius of ferrous sulfate saturated aqueous solution in blender,
The proportioning of coal dust and ferrous sulfate saturated aqueous solution is subject to its humidity and forming press is suitble to be molded（The water content of material is about at this time
30%）, 3 millimeters of cylindrical pellets 3-8 millimeters long of diameter then are pressed into through forming press, after drying, screening, minus sieve powder returns
Return blender；Dry particle is admitted to carbonized activating furnace and is handled 60 minutes under the conditions of existing for vapor at 900 degrees Celsius, puts
Go out after cooling screened again, packaging " gold and silver special magnetic charcoal ".The quality and performance of the product and the product phase of mode 1
When.In addition, in a manner of 2 molysite class saturated water solution method can also be achieved after regenerated carbon magnetism weakens and non magnetic shell
The increase of class activated carbon is magnetic.Its method is shown in specific embodiment 3.
Embodiment 3
By the regenerated carbon of its magnetism reduction or nonmagnetic coconut husk charcoal sulphur after dry granular gold loaded carbon desorption
Sour ferrous iron saturated aqueous solution pulls drying out after impregnating 24 hours in plastic channel, is then fed into regeneration activating stove at 900 degrees Celsius
At a temperature of handle 30 minutes release cooling after pack.Such as the activated carbon of the method processing gained, its magnetism can be inhaled by magnetic separator
It takes.
Claims (6)
1. a kind of special magnetic charcoal of gold and silver, it is characterised in that：Using bituminous coal powder as primary raw material, to contain ferrous material as Magnetic reagent；
The mass ratio of coal dust and Magnetic reagent is：Bituminous coal powder is than Magnetic reagent=100 to 1~10.
2. a kind of manufacturing method of the special magnetic charcoal of gold and silver, making step are followed successively by：
A. it will crush（Dry method, wet method）It is less than the Magnetic reagent of bituminous coal powder and 100 purposes containing ferrous material of 100 mesh to grain size
Powder（If its aqueous solution can be used using soluble iron salt material）It is bituminous coal powder according to mass ratio（Butt）：Magnetic reagent（With
Ferric oxide content meter）=100：1~10 ratio adds in mixing machine and is sufficiently mixed；
B. the mixture come out by mixing machine enters blender, adds in suitable binding agent or water herein（According to the laboratory test report of coal
Depending on）It stirs；
C. the raw material come out by blender enters forming press and is squeezed into particle of the grain size size range at 1 to 10 millimeters；
D. by forming press come out particulate material drying, screening after enter carbonized activating furnace 900 degrees Celsius in vapor exist
Under conditions of handle 60 minutes, release after cooling screened again, packaging " gold and silver special magnetic charcoal ".
3. the manufacturing method of the special magnetic charcoal of gold and silver according to claim 2, it is characterised in that：The Magnetic reagent can be with
Be di-iron trioxide, ferroso-ferric oxide, iron hydroxide, ferric trichloride, frerrous chloride, ferrous sulfate, ferric sulfate, ferrous sulfide,
The compounding of one or more therein in ferriammonium sulfate and metal iron powder.
4. the manufacturing method of the special magnetic charcoal of gold and silver according to claim 2, it is characterised in that：Three in the Magnetic reagent
Iron chloride, frerrous chloride, ferrous sulfate, ferric sulfate saturated aqueous solution can be additionally used in after desorption the magnetic regeneration weakened
The increase of activated carbon or non magnetic shell class granular active carbon is magnetic.
5. the manufacturing method of the special magnetic charcoal of gold and silver according to claim 2, it is characterised in that：Object is taken in the activation
The vapour method of reason or the auxiliary reagent activation method for taking chemistry.
6. the special magnetic charcoal of gold and silver according to claim 1, it is characterised in that：The magnetic carbon is granulated, including
Spherical shape, ellipsoid, cylindric, square strip and amorphous；Its grain size range is at 1 to 10 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711468176.XA CN108187616A (en) | 2017-12-29 | 2017-12-29 | A kind of special magnetic charcoal of gold and silver and its manufacturing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711468176.XA CN108187616A (en) | 2017-12-29 | 2017-12-29 | A kind of special magnetic charcoal of gold and silver and its manufacturing method |
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| CN108187616A true CN108187616A (en) | 2018-06-22 |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0052253A2 (en) * | 1980-11-13 | 1982-05-26 | Hoechst Aktiengesellschaft | Process for winning metals from aqueous solutions |
| CN1062302A (en) * | 1990-12-13 | 1992-07-01 | 中国科学院金属研究所 | It is the process for extracting gold of sorbent material that the magnetic charcoal reaches with it |
| CN101338370A (en) * | 2008-08-14 | 2009-01-07 | 张学贤 | Gold-extracting process by thiourea carbon-in-pulp method |
| CN101497028A (en) * | 2009-01-16 | 2009-08-05 | 中国矿业大学(北京) | Method for preparing magnetic active carbon and the magnetic active carbon |
| US20090241736A1 (en) * | 2008-03-27 | 2009-10-01 | Nippon Mining & Metals Co., Ltd. | Method for recovering metal from ore |
| CN101972629A (en) * | 2010-11-01 | 2011-02-16 | 重庆大学 | Preparation method of coal-based magnetic activated carbon and coal-based magnetic activated carbon |
| CN102939397A (en) * | 2010-01-22 | 2013-02-20 | 莫利康普矿物有限责任公司 | Hydrometallurgical process and method for recovering metals |
| CN104028221A (en) * | 2014-06-25 | 2014-09-10 | 无锡市崇安区科技创业服务中心 | Magnetic active carbon and preparation method thereof |
| CN104805284A (en) * | 2015-05-02 | 2015-07-29 | 傅尚臣 | Process for extracting gold from gold ore |
| CN107376836A (en) * | 2017-07-20 | 2017-11-24 | 安徽理工大学 | A kind of preparation method of ature of coal magnetic-particle activated carbon |
-
2017
- 2017-12-29 CN CN201711468176.XA patent/CN108187616A/en active Pending
Patent Citations (10)
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|---|---|---|---|---|
| EP0052253A2 (en) * | 1980-11-13 | 1982-05-26 | Hoechst Aktiengesellschaft | Process for winning metals from aqueous solutions |
| CN1062302A (en) * | 1990-12-13 | 1992-07-01 | 中国科学院金属研究所 | It is the process for extracting gold of sorbent material that the magnetic charcoal reaches with it |
| US20090241736A1 (en) * | 2008-03-27 | 2009-10-01 | Nippon Mining & Metals Co., Ltd. | Method for recovering metal from ore |
| CN101338370A (en) * | 2008-08-14 | 2009-01-07 | 张学贤 | Gold-extracting process by thiourea carbon-in-pulp method |
| CN101497028A (en) * | 2009-01-16 | 2009-08-05 | 中国矿业大学(北京) | Method for preparing magnetic active carbon and the magnetic active carbon |
| CN102939397A (en) * | 2010-01-22 | 2013-02-20 | 莫利康普矿物有限责任公司 | Hydrometallurgical process and method for recovering metals |
| CN101972629A (en) * | 2010-11-01 | 2011-02-16 | 重庆大学 | Preparation method of coal-based magnetic activated carbon and coal-based magnetic activated carbon |
| CN104028221A (en) * | 2014-06-25 | 2014-09-10 | 无锡市崇安区科技创业服务中心 | Magnetic active carbon and preparation method thereof |
| CN104805284A (en) * | 2015-05-02 | 2015-07-29 | 傅尚臣 | Process for extracting gold from gold ore |
| CN107376836A (en) * | 2017-07-20 | 2017-11-24 | 安徽理工大学 | A kind of preparation method of ature of coal magnetic-particle activated carbon |
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Application publication date: 20180622 |