CN104762477A - Silver component-containing waste recovery treatment method - Google Patents
Silver component-containing waste recovery treatment method Download PDFInfo
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- CN104762477A CN104762477A CN201410009152.8A CN201410009152A CN104762477A CN 104762477 A CN104762477 A CN 104762477A CN 201410009152 A CN201410009152 A CN 201410009152A CN 104762477 A CN104762477 A CN 104762477A
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- reaction
- acid
- argentiferous
- silver
- acid solution
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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
- C22B11/042—Recovery of noble metals from waste materials
-
- 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
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
- C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
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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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention discloses a silver component-containing waste recovery treatment method, which comprises: an acid liquid preparation and reaction step, wherein an acid liquid is prepared, and silver component-containing waste and the acid liquid are subjected to a first reaction so as to produce the recovered silver component-containing acid liquid mixture; a stabilization step, wherein an alcohol liquid is prepared, and the recovered silver component-containing acid liquid mixture and the alcohol liquid are subjected to a second reaction so as to produce the stabilized silver component-containing acid liquid mixture; and a precipitation reduction step, wherein the stabilized silver component-containing acid liquid mixture, an alkaline compound and deionized water with deresistivity of 18.2 M[ohm].cm are subjected to a third reaction so as to produce the recovered silver semi-finished product. In addition, the further processing is performed based on the steps so as to prepare the silver finished products or the product, wherein the high temperature exceeding 100 DEG C is not required, the steps are simplified, the silver can be recovered, and the effects of simple operation and cost reducing can be achieved.
Description
Technical field
The present invention, about a kind of association area of scrap concrete process, refers to a kind of scrap concrete treatment process of argentiferous composition especially.
Background technology
From the waste of argentiferous, Footwall drift silver, has very high economic worth; And at present, from the waste of argentiferous, the method for recover silver mainly comprises pyrogenic process and wet method two kinds.
Because pyrogenic process will consume a large amount of energy, and need, more than the high temperature of 100 DEG C, to produce pollution, the rate of recovery is not high yet simultaneously; And wet method uses more, solid-state silver, by silver-colored stripping, is transferred to after in solution and is extracted by general prior employing appropriate means, and its dissolving method comprises concentrated sulfuric acid dissolution method, nitric acid dissolve method, highly basic dissolution method, thiocarbamide dissolution method etc.
Method due to current used recover silver need use the high temperature more than 100 DEG C or need use highly basic or the strong acid solution of high density, not only dangerous but also easily pollute.
Summary of the invention
The invention provides a kind of scrap concrete treatment process of argentiferous composition, can from the waste of argentiferous the work in-process of output argentiferous, silver-colored finished product or goods are made again to process further, not only need not more than the high temperature of 100 DEG C, and step is simplified, whereby not only can recover silver, more can reach effect that operation is simple and easy and reduce costs.
The scrap concrete treatment process that the invention provides a kind of argentiferous composition is put, its step comprises: acid solution preparation and reactions steps: preparation acid solution, and the waste of at least one argentiferous composition and this acid solution are carried out the first reactions steps, the acid solution mixture of the argentiferous composition recycled with output;
Stabilization step: prepare alcohol liquid, and the acid solution mixture of the argentiferous composition this recycled and this alcohol liquid carry out the second reactions steps, with the acid solution mixture of the argentiferous composition of output stabilization;
And precipitation reduction step: by this, the acid solution mixture of the argentiferous composition of stabilization and basic cpd and resistivity are that the deionized water of 18.2 M Ω cm carries out the 3rd reactions steps, the silver-colored work in-process reclaimed with output.
Wherein, this acid solution in the preparation of this acid solution and reactions steps is nitric acid/mixed in hydrochloric acid acid solution, nitric acid/acetic acid mix acid liquor, hydrochloric acid/acetic acid mix acid liquor, sulfuric acid or acetic acid, and the blending ratio of this nitric acid/mixed in hydrochloric acid acid solution, this nitric acid/acetic acid mix acid liquor or this hydrochloric acid/acetic acid mix acid liquor is 1:1-10 or 1-10:1.
Wherein, this acid solution preparation and reactions steps in this first reactions steps comprise a first paragraph reaction parameter and a second segment reaction parameter, this first paragraph reaction parameter comprises the temperature of reaction of 10-40 DEG C and the reaction times of 1 hour, and this second segment reaction parameter comprises the temperature of reaction of 65-80 DEG C and the reaction times of 1 hour.
Wherein, the waste of this at least one argentiferous composition is computer part, silverware, silvery work in-process, argentiferous chemical feedstocks or silver containing mineral.
Wherein, this second reactions steps of this stabilization step comprises a first paragraph reaction parameter and an individual second segment reaction parameter, this first paragraph reaction parameter comprises the temperature of reaction of 10-40 DEG C and the reaction times of 0.5-3 hour, and this second segment reaction parameter comprises the temperature of reaction of 60-100 DEG C and the reaction times of 0.5-3 hour.
Wherein, this alcohol liquid of this stabilization step is the mixture of Virahol, propyl carbinol, sec.-amyl alcohol, glycerol, butantetraol, pentitol, ethylene glycol or ethanol/acetone, and in ethanol/acetone mixture, the ratio of the two is 1:0 or 1:1 or 1:2 or 1:4.
Wherein, the 3rd reactions steps in this precipitation reduction step comprises a first paragraph reaction parameter and a second segment reaction parameter, this first paragraph reaction parameter comprises the temperature of reaction of 10-40 DEG C and the reaction times of 0.5-3 hour, and this second segment reaction parameter comprises the temperature of reaction of 80-100 DEG C and the reaction times of 0.5-3 hour.
Wherein, this basic cpd in this precipitation reduction step is salt of wormwood, sodium carbonate, potassium hydroxide, sodium hydroxide or ammoniacal liquor.
Wherein, fluorenes, 9-bromine fluorenes, 2 is also applied in this precipitation reduction step, 7-dibromo fluorenes, 2-amino-7-bromine fluorenes, thiophene, 2-bromothiophene, 3,4-dibromo thiophene, 2-tributylstamlyl thiophene, 2,5-dibromo thiophenes, 4-amino-2,1,3-diazosulfide, 3 bromo thiophene, 4, bromo-2,1, the 3-diazosulfides of 7-bis-, Silver monobromide, Silver iodide or 2-iodothiophen.These materials are respectively chelated mineral silver and use, and belong to dispersed and the quick and reductive agent generation reduction reaction of silver-colored composition to enable GOLD FROM PLATING SOLUTION.
The scrap concrete treatment process of argentiferous composition of the present invention, can from the waste of argentiferous the work in-process of output argentiferous, silver-colored finished product or goods are made again to process further, high temperature is not related in its whole method treating processes, the acid solution using high density highly corrosive is not needed yet, its step is also simplified very much, therefore the invention provides a kind of safety, the argentiferous scrap concrete method of environmental protection.
Accompanying drawing explanation
Fig. 1 represents that the scrap concrete treatment process of argentiferous composition of the present invention forms the half-finished schema of silver reclaimed.
After Fig. 2 represents the scrap concrete disposal methods of argentiferous composition of the present invention, the schema making silverware is again processed to the silver-colored work in-process reclaimed.
[nomenclature]
Step S1 ~ S3: the scrap concrete step of argentiferous composition of the present invention
Step S4 ~ S5: silverware step is made in the present invention's processing again.
Embodiment
Fig. 1 represents the schema of the scrap concrete treatment process of argentiferous composition of the present invention.
Please refer to Fig. 1, the step of the scrap concrete treatment process of argentiferous composition of the present invention can comprise an acid solution preparation and reactions steps, a stabilization step and a precipitation reduction step.
Acid solution preparation and reactions steps S1 first prepare an acid solution, and the waste of at least one argentiferous composition and acid solution are carried out one first reactions steps, the acid solution mixture of the argentiferous composition recycled with output one.The waste of described at least one argentiferous composition can be computer part, silverware, silvery work in-process, argentiferous chemical feedstocks or silver containing mineral etc., but not as limit.
In acid solution preparation and reactions steps, acid solution can be nitric acid/mixed in hydrochloric acid acid solution, nitric acid/acetic acid mix acid liquor, hydrochloric acid/acetic acid mix acid liquor, sulfuric acid or acetic acid, and the blending ratio scope of above-mentioned nitric acid/mixed in hydrochloric acid acid solution, this nitric acid/acetic acid mix acid liquor or this hydrochloric acid/acetic acid mix acid liquor can be 1:1-10 or 1-10:1; And, first reactions steps S1 can comprise a first paragraph reaction parameter and a second segment reaction parameter, first paragraph reaction parameter can comprise the temperature of reaction of 10-40 DEG C and the reaction times of 1 hour, and second segment reaction parameter can comprise the temperature of reaction of 65-80 DEG C and the reaction times of 1 hour.
Stabilization step S2 first prepares an alcohol liquid, and the acid solution mixture of the above-mentioned argentiferous composition recycled and alcohol liquid are carried out one second reactions steps, with the acid solution mixture of the argentiferous composition of output one stabilization.
Wherein, second reactions steps S2 also comprises a first paragraph reaction parameter and a second segment reaction parameter, first paragraph reaction parameter comprises the temperature of reaction of 10-40 DEG C and the reaction times of 0.5-3 hour, and second segment reaction parameter comprises the temperature of reaction of 60-100 DEG C and the reaction times of 0.5-3 hour; And this alcohol liquid can be the mixed solution of Virahol, propyl carbinol, sec.-amyl alcohol, glycerol, butantetraol, pentitol, ethylene glycol or ethanol/acetone, and in the mixed solution of ethanol/acetone, the ratio of the two can be 1:0 or 1:1 or 1:2 or 1:4.
Separating out reduction step S3 is that the deionized water being 18.2 M Ω cm by the acid solution of the argentiferous composition of above-mentioned stabilization and a basic cpd and a resistivity carries out one the 3rd reactions steps, with the silver-colored work in-process of output one recovery.
Wherein, 3rd reactions steps S3 comprises a first paragraph reaction parameter and a second segment reaction parameter, first paragraph reaction parameter comprises the temperature of reaction of 10-40 DEG C and the reaction times of 0.5-3 hour, and second segment reaction parameter comprises the temperature of reaction of 80-100 DEG C and the reaction times of 0.5-3 hour; And basic cpd can be salt of wormwood, sodium carbonate, potassium hydroxide, sodium hydroxide or ammoniacal liquor.
Wherein, fluorenes, 9-bromine fluorenes, 2 also can be applied further in this precipitation reduction step S3,7-dibromo fluorenes, 2-amino-7-bromine fluorenes, thiophene, 2-bromothiophene, 3,4-dibromo thiophene, 2-tributylstamlyl thiophene, 2,5-dibromo thiophenes, 4-amino-2,1,3-diazosulfide, 3 bromo thiophene, 4, bromo-2,1, the 3-diazosulfides of 7-bis-, Silver monobromide, Silver iodide or 2-iodothiophen etc.These materials are respectively chelated mineral silver and use, and belong to dispersed and the quick and reductive agent generation reduction reaction of silver-colored composition to enable GOLD FROM PLATING SOLUTION.
After Fig. 2 represents the scrap concrete disposal methods of argentiferous composition of the present invention, the schema making silverware is again processed to the silver-colored work in-process reclaimed.
At the silver-colored work in-process of the recovery that above-mentioned precipitation reduction step S3 produces, can make again and form a silverware or silver products carrying out further processing, comprising procedure of processing S4 and making step S5 again.
Procedure of processing S4: the silver-colored work in-process reclaimed are joined acetone, toluene and tetrahydrofuran (THF), and by utensils such as ball mill, stirrer, carbon boat, carbon dust, smelting furnace, megasonic tank, screen cloth and high-temperature annealing furnaces, complete silver-colored half-finished processing.
Step S5 processed again: the above-mentioned silver-colored work in-process completing processing are made silver-colored finished product or product again, such as how (micro-) rice silver powder, silver-colored line, silver foil, silver rod, the silver-colored material of sheet, tree-shaped silver-colored material, ping-pong ball, silver bullion, yellow gold, high-purity silver chemical material etc., but not as limit.
By aforesaid method, can from the waste of argentiferous the work in-process of output argentiferous, make silver-colored finished product or goods again to process further, not only need not more than the high temperature of 100 DEG C, and step is simplified, whereby not only can recover silver, more can reach effect that operation is simple and easy and reduce costs.
Although specification sheets of the present invention only makes an explanation with preferred embodiment, this is not construed as limiting the invention.It should be noted that those skilled in the art can construct other similar embodiment a lot of according to thought of the present invention, these are all among protection scope of the present invention.
Claims (9)
1. a scrap concrete treatment process for argentiferous composition, it is characterized in that, step comprises:
Acid solution preparation and reactions steps: preparation acid solution, and the waste of at least one argentiferous composition and this acid solution are carried out the first reactions steps, the acid solution mixture of the argentiferous composition recycled with output;
Stabilization step: prepare alcohol liquid, and the acid solution mixture of the argentiferous composition this recycled and this alcohol liquid carry out the second reactions steps, with the acid solution mixture of the argentiferous composition of output stabilization; And
Separate out reduction step: acid solution mixture and the basic cpd of the argentiferous composition of stabilization and resistivity are that the deionized water of 18.2 M Ω cm carries out the 3rd reactions steps, with the silver-colored work in-process of output recovery by this.
2. the scrap concrete treatment process of argentiferous composition as claimed in claim 1, it is characterized in that, this acid solution in the preparation of this acid solution and reactions steps is nitric acid/mixed in hydrochloric acid acid solution, nitric acid/acetic acid mix acid liquor, hydrochloric acid/acetic acid mix acid liquor, sulfuric acid or acetic acid, and the blending ratio of this nitric acid/mixed in hydrochloric acid acid solution, this nitric acid/acetic acid mix acid liquor or this hydrochloric acid/acetic acid mix acid liquor is 1:1-10 or 1-10:1.
3. the scrap concrete treatment process of argentiferous composition as claimed in claim 1 or 2, it is characterized in that, this acid solution preparation and reactions steps in this first reactions steps comprise a first paragraph reaction parameter and a second segment reaction parameter, this first paragraph reaction parameter comprises the temperature of reaction of 10-40 DEG C and the reaction times of 1 hour, and this second segment reaction parameter comprises the temperature of reaction of 65-80 DEG C and the reaction times of 1 hour.
4. the scrap concrete treatment process of argentiferous composition as claimed in claim 1, it is characterized in that, the waste of this at least one argentiferous composition is computer part, silverware, silvery work in-process, argentiferous chemical feedstocks or silver containing mineral.
5. the scrap concrete treatment process of argentiferous composition as claimed in claim 1, it is characterized in that, this second reactions steps of this stabilization step comprises a first paragraph reaction parameter and an individual second segment reaction parameter, this first paragraph reaction parameter comprises the temperature of reaction of 10-40 DEG C and the reaction times of 0.5-3 hour, and this second segment reaction parameter comprises the temperature of reaction of 60-100 DEG C and the reaction times of 0.5-3 hour.
6. the scrap concrete treatment process of argentiferous composition as claimed in claim 1, it is characterized in that, this alcohol liquid of this stabilization step is the mixture of Virahol, propyl carbinol, sec.-amyl alcohol, glycerol, butantetraol, pentitol, ethylene glycol or ethanol/acetone, and in ethanol/acetone mixture, the ratio of the two is 1:0 or 1:1 or 1:2 or 1:4.
7. the scrap concrete treatment process of argentiferous composition as claimed in claim 1, it is characterized in that, the 3rd reactions steps in this precipitation reduction step comprises a first paragraph reaction parameter and a second segment reaction parameter, this first paragraph reaction parameter comprises the temperature of reaction of 10-40 DEG C and the reaction times of 0.5-3 hour, and this second segment reaction parameter comprises the temperature of reaction of 80-100 DEG C and the reaction times of 0.5-3 hour.
8. the scrap concrete treatment process of argentiferous composition as claimed in claim 1, it is characterized in that, this basic cpd in this precipitation reduction step is salt of wormwood, sodium carbonate, potassium hydroxide, sodium hydroxide or ammoniacal liquor.
9. the scrap concrete treatment process of argentiferous composition as claimed in claim 1, it is characterized in that, fluorenes, 9-bromine fluorenes, 2,7-dibromo fluorenes, 2-amino-7-bromine fluorenes, thiophene, 2-bromothiophene, 3,4-dibromo thiophenes, 2-tributylstamlyl thiophene, 2 is also applied in this precipitation reduction step, 5-dibromo thiophene, 4-amino-2,1,3-diazosulfide, 3 bromo thiophene, 4,7-bis-bromo-2,1,3-diazosulfide, Silver monobromide, Silver iodide or 2-iodothiophen.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410009152.8A CN104762477A (en) | 2014-01-08 | 2014-01-08 | Silver component-containing waste recovery treatment method |
| PCT/CN2014/085884 WO2015103888A1 (en) | 2014-01-08 | 2014-09-03 | Method for recycling and processing waste containing silver component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410009152.8A CN104762477A (en) | 2014-01-08 | 2014-01-08 | Silver component-containing waste recovery treatment method |
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| CN104762477A true CN104762477A (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410009152.8A Pending CN104762477A (en) | 2014-01-08 | 2014-01-08 | Silver component-containing waste recovery treatment method |
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| CN (1) | CN104762477A (en) |
| WO (1) | WO2015103888A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117587249A (en) * | 2023-12-28 | 2024-02-23 | 横峰县凯怡实业有限公司 | Method for preparing silver powder by utilizing silver-containing waste |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101928840A (en) * | 2010-08-02 | 2010-12-29 | 惠州市奥美特环境科技有限公司 | Method for recovering gold and silver from waste circuit boards |
| CN102277497A (en) * | 2011-08-05 | 2011-12-14 | 武汉格林美资源循环有限公司 | Method of reclaiming gold, palladium, platinum and silver from waste circuit board |
| CN102532589A (en) * | 2011-12-21 | 2012-07-04 | 北京泰合源通生物科技有限公司 | Comprehensive recycling method of waste and old compact discs |
| CN102994772A (en) * | 2012-10-31 | 2013-03-27 | 中国石油化工股份有限公司 | Method for recovering silver from silver-contained waste material |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03252656A (en) * | 1990-03-01 | 1991-11-11 | Konica Corp | Method for recovering silver from waste photographic processing solution |
| JPH07331349A (en) * | 1994-06-07 | 1995-12-19 | Shoei Chem Ind Co | Separation and recovering method of palladium and silver |
| CN101220506B (en) * | 2007-09-27 | 2011-05-04 | 复旦大学 | Method for high concentration mass-synthesis of silver nano-wire |
| CN103074500A (en) * | 2012-12-27 | 2013-05-01 | 徐州浩通新材料科技股份有限公司 | Method for producing high-purity silver powder by using silver-containing dead catalyst |
-
2014
- 2014-01-08 CN CN201410009152.8A patent/CN104762477A/en active Pending
- 2014-09-03 WO PCT/CN2014/085884 patent/WO2015103888A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101928840A (en) * | 2010-08-02 | 2010-12-29 | 惠州市奥美特环境科技有限公司 | Method for recovering gold and silver from waste circuit boards |
| CN102277497A (en) * | 2011-08-05 | 2011-12-14 | 武汉格林美资源循环有限公司 | Method of reclaiming gold, palladium, platinum and silver from waste circuit board |
| CN102532589A (en) * | 2011-12-21 | 2012-07-04 | 北京泰合源通生物科技有限公司 | Comprehensive recycling method of waste and old compact discs |
| CN102994772A (en) * | 2012-10-31 | 2013-03-27 | 中国石油化工股份有限公司 | Method for recovering silver from silver-contained waste material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117587249A (en) * | 2023-12-28 | 2024-02-23 | 横峰县凯怡实业有限公司 | Method for preparing silver powder by utilizing silver-containing waste |
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| WO2015103888A1 (en) | 2015-07-16 |
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