CN103834808B - The recovery process of rare precious metal in a kind of abandoned car electron device - Google Patents
The recovery process of rare precious metal in a kind of abandoned car electron device Download PDFInfo
- Publication number
- CN103834808B CN103834808B CN201210478052.0A CN201210478052A CN103834808B CN 103834808 B CN103834808 B CN 103834808B CN 201210478052 A CN201210478052 A CN 201210478052A CN 103834808 B CN103834808 B CN 103834808B
- Authority
- CN
- China
- Prior art keywords
- precious metal
- abandoned car
- electrodeposition
- electron device
- recovery process
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention relates to the process to electronics waste and scrap, be specifically related to the recovery process of rare precious metal in a kind of abandoned car electron device.Its scheme comprises the following steps: abandoned car component are disassembled by (1); (2) by broken for the junked-auto component containing rare precious metal; (3) by crushed powder and sodium hydroxide baking mixed; (4) then hot wash is used; (5) filter, reclaim aluminium, molybdenum from filtrate, filter residue acid dissolve, and then filter the solution obtained containing rare earth and iron ion and the filter residue containing precious metal; (6) solution containing rare earth and iron ion obtained after step (5) being filtered prepares rare earth oxide; (7) leach the precious metal slag of step (5) with the mixing solutions of hydrochloric acid and clorox, obtain the solution containing gold, palladium, platinum, rhodium, electrodeposition extracts golden; (8) platinum is extracted; (9) get except platinum filtrate described in step (8), obtained thick palladium powder.In abandoned car electron device of the present invention, its flow process of recovery process of rare precious metal is short, products obtained therefrom purity is high, the rate of recovery is high, environmental friendliness.
Description
Technical field
The present invention relates to the process to electronics waste and scrap, be specifically related to the recovery process of rare precious metal in a kind of abandoned car electron device.
Background technology
Along with the development of automotive engineering and the raising of people's living standard, the consumption of automobile is increasing, meanwhile, also have a large amount of automobiles to be scrapped every year, a lot of component cannot re-use, the huge negative impact to environment band.Containing rare precious metal in a lot of electron devices of automobile, if can effectively be reclaimed, can economize on resources, reduce the pollution of environment simultaneously.At present not about the report reclaiming rare precious metal technology from automobile component.
Summary of the invention
The invention provides the recovery process of rare precious metal in a kind of abandoned car electron device, be the novel process of a kind of automobile component comprehensive utilization, this technique has the features such as technical process is short, products obtained therefrom purity is high, the rate of recovery is high, environmental friendliness.
The recovery process of rare precious metal in a kind of abandoned car electron device of the present invention, its scheme comprises the following steps:
(1) disassemble: abandoned car component are disassembled, select the component being rich in rare precious metal; In abandoned car, precious metal is mainly present in electron device and tai-gas clean-up catalyst etc., may contain the automobile component of rare earth element in table 1.
| Component | Rare earth element |
| Hybrid electrically motor and generator | Neodymium, praseodymium, dysprosium, terbium |
| Catalytic converter | Cerium, lanthanum |
| Nickel metal hydride battery | Lanthanum, cerium |
| Liquid crystal display | Erbium, yttrium, cerium |
| Glass polishing powder | Cerium |
| Ultraviolet ray intercepting glass | Cerium |
| Diesel fuel additive | Cerium, lanthanum |
(2) broken: by broken for the junked-auto component containing rare precious metal, then to grind, whole mistake 80 ~ 150 mesh sieve; For not breakable Nd-Fe-B alloys material etc., hydrogen can be aided with broken.
(3) powder obtained after step (2) being sieved mixes according to mass ratio 1:0.8 ~ 1.5 with sodium hydroxide, roasting between 250 DEG C ~ 500 DEG C, roasting time 2 ~ 4 hours;
(4) material after the hot wash roasting of 60 ~ 99 DEG C is then used, solid-to-liquid ratio 1:3 ~ 6, agitator treating 2 ~ 4 hours;
(5) filter, reclaim aluminium, molybdenum from filtrate, filter residue acid dissolve, keep hydrogen ion concentration in solution to be 0.5 ~ 2mol/L, temperature of reaction 60 ~ 99 DEG C, 2 ~ 4 hours reaction times, solid-to-liquid ratio 1:3 ~ 6; And then filter the solution obtained containing rare earth and iron ion and the filter residue containing precious metal;
(6) solution containing rare earth and iron ion obtained after step (5) filtration, between first regulator solution pH value to 3.5 ~ 4.5, then under 20 ~ 40 DEG C of conditions, add sulfide or pass into hydrogen sulfide, reacting 2 ~ 4 hours, iron is precipitated completely; Filtrate is the solution containing rare earth, with rare earths such as P507 extracting and separating cerium, praseodymium, lanthanum, yttriums, then prepares rare earth oxide;
(7) the precious metal slag of step (5) is leached with the mixing solutions of hydrochloric acid and clorox, obtain the solution containing gold, palladium, platinum, rhodium, add the chloroazotic acid of 1 ~ 5 times of quality, stir with the speed of 100 ~ 1000r/min at 20 ~ 70 DEG C of temperature, leach 1 ~ 2.5h; Leach liquor eddy flow electrodeposition gold, its electrodeposition condition is: temperature is 20 ~ 60 DEG C, and current density is 50 ~ 400A/m2, and the electrodeposition time is 0.5 ~ 4h, and electrolyte ph is 1.0 ~ 5.5, obtains electrodeposition gold, and the solution after electrodeposition enters next step;
(8) platinum is extracted: to get in step (7) liquid after electrodeposition, add after saturated NH4Cl reacts 2 ~ 8h and filter, filter residue is ammonium chloroplatinate, after refining, obtain spongy platinum, except platinum filtrate enters next step:
(9) get except platinum filtrate described in step (8), in palladium: formic acid mass ratio is that the ratio of 0.5 ~ 3:1 adds formic acid, under 50 ~ 90 DEG C of intensively stirred conditions, react 0.5 ~ 2h, pH value controls 6.0 ~ 9.0, obtains thick palladium powder.
Preferably, in step (2), component are crushed to 100 ~ 120 order powder.
The maturing temperature of step (3) is 300 ~ 400 DEG C.
In step (5), solid-to-liquid ratio is 1:4 ~ 5.
PH value to 3.8 ~ 4.2 of regulator solution in step (6).
In step (7), electrodeposition condition is: temperature is 30 ~ 45 DEG C, and current density is 150 ~ 250A/m2, and the electrodeposition time is 1 ~ 2.5h, and electrolyte ph is 2.0 ~ 3.5.
In step (9), pH value controls 6.5 ~ 8.0.
In abandoned car electron device of the present invention, its flow process of recovery process of rare precious metal is short, products obtained therefrom purity is high, the rate of recovery is high, environmental friendliness.
Embodiment
Below in conjunction with specific embodiment, the present invention is further illustrated, but protection scope of the present invention is not limited to these embodiments.
embodiment one
The recovery process of rare precious metal in abandoned car electron device, concrete steps are as follows:
(1) disassemble: abandoned car component are disassembled, select the component being rich in rare precious metal, the metallic carrier of such as automobile exhaust purifier, starting engine, generator, speed change gear, vaporizer, air-conditioning part etc.
(2) broken: by the powerful Mechanical Crushing of junked-auto component containing rare precious metal, then to grind, whole mistake 80 mesh sieve; For not breakable Nd-Fe-B alloys material etc., hydrogen can be aided with broken.
(3) powder obtained after step (2) being sieved mixes according to mass ratio 1:0.8 with sodium hydroxide, roasting between 250 DEG C, roasting time 4 hours;
(4) with material after the hot wash roasting of 60 DEG C, solid-to-liquid ratio 1:3, agitator treating 2 hours;
(5) filter, reclaim aluminium, molybdenum etc. from filtrate, filter residue acid dissolve, in order to dissolve the metallic element such as rare earth element and iron, keep hydrogen ion concentration in solution to be 0.5mol/L, temperature of reaction 60 DEG C, 4 hours reaction times, solid-to-liquid ratio 1:3; And then filter the solution obtained containing rare earth and iron ion and the filter residue containing precious metal;
(6) solution containing rare earth and iron ion obtained after step (5) filtration, first regulator solution pH value to 3.5, then passes into hydrogen sulfide under 20 DEG C of conditions, reacts 4 hours, iron is precipitated completely; Filtrate is the solution containing rare earth, with rare earths such as P507 extracting and separating cerium, praseodymium, lanthanum, yttriums, then prepares rare earth oxide;
(7) leach the precious metal slag of step (5) with the mixing solutions of hydrochloric acid and clorox, obtain the solution containing gold, palladium, platinum, rhodium, add the chloroazotic acid of 5 times of quality, stir with the speed of 1000r/min at 20 DEG C of temperature, leaching 1h; Leach liquor eddy flow electrodeposition gold, its electrodeposition condition is: temperature is 20 DEG C, and current density is 50A/m
2, the electrodeposition time is 4h, and electrolyte ph is 5.5, and obtain electrodeposition gold, after electrodeposition, liquid enters next step;
(8) platinum is extracted: to get in step (7) liquid after electrodeposition, add saturated NH
4cl filters after reacting 8h, and filter residue is ammonium chloroplatinate, after refining, obtain spongy platinum, except platinum filtrate enters next step:
(9) get except platinum filtrate described in step (8), in palladium: formic acid mass ratio is that the ratio of 0.5:1 adds formic acid, and react 2h under 50 DEG C of intensively stirred conditions, pH value controls 6.0, obtains thick palladium powder.
embodiment two
The recovery process of rare precious metal in abandoned car electron device, concrete steps are as follows:
(1) disassemble: abandoned car component are disassembled, select the component being rich in rare precious metal, the metallic carrier of such as automobile exhaust purifier, starting engine, generator, speed change gear, vaporizer, air-conditioning part etc.
(2) broken: by the powerful Mechanical Crushing of junked-auto component containing rare precious metal, then to grind, whole mistake 150 mesh sieve; For not breakable Nd-Fe-B alloys material etc., hydrogen can be aided with broken.
(3) powder obtained after step (2) being sieved mixes according to mass ratio 1:1.5 with sodium hydroxide, roasting between 500 DEG C, roasting time 2 hours;
(4) with material after the hot wash roasting of 99 DEG C, solid-to-liquid ratio 1:6, agitator treating 4 hours;
(5) filter, reclaim aluminium, molybdenum etc. from filtrate, filter residue acid dissolve, in order to dissolve the metallic element such as rare earth element and iron, keep hydrogen ion concentration in solution to be 2mol/L, temperature of reaction 99 DEG C, 2 hours reaction times, solid-to-liquid ratio 1:3; And then filter the solution obtained containing rare earth and iron ion and the filter residue containing precious metal;
(6) solution containing rare earth and iron ion obtained after step (5) filtration, first regulator solution pH value to 4.5, then passes into hydrogen sulfide under 40 DEG C of conditions, reacts 2 hours, iron is precipitated completely; Filtrate is the solution containing rare earth, with rare earths such as P507 extracting and separating cerium, praseodymium, lanthanum, yttriums, then prepares rare earth oxide;
(7) leach the precious metal slag of step (5) with the mixing solutions of hydrochloric acid and clorox, obtain the solution containing gold, palladium, platinum, rhodium, add the chloroazotic acid of equal quality, stir with the speed of 100r/min at 70 DEG C of temperature, leaching 2.5h; Leach liquor eddy flow electrodeposition gold, its electrodeposition condition is: temperature is 60 DEG C, and current density is 400A/m2, and the electrodeposition time is 0.5h, and electrolyte ph is 1.0, and obtain electrodeposition gold, after electrodeposition, liquid enters next step;
(8) platinum is extracted: to get in step (7) liquid after electrodeposition, add after saturated NH4Cl reacts 8h and filter, filter residue is ammonium chloroplatinate, after refining, obtain spongy platinum, except platinum filtrate enters next step:
(9) get except platinum filtrate described in step (8), in palladium: formic acid mass ratio is that the ratio of 0.5 ~ 3:1 adds formic acid, and react 0.5h under 90 DEG C of intensively stirred conditions, pH value controls 9.0, obtains thick palladium powder.
The concentration and separation of step (6) rare earth, obtains the lucium of more than 95%, then obtains the single pure rare earth muriate of more than 99.95% through solvent extraction, obtains ultra-pure single rare earth oxide compound finally by stratography.Wherein, the purity of europium sesquioxide, yttrium oxide reaches 99.995%-99.9995%.Total rare earth recovery rate is greater than 90%, and non-rare earth yield is greater than 85%.
embodiment three
The recovery process of rare precious metal in abandoned car electron device, concrete steps are as follows:
(1) disassemble: abandoned car component are disassembled, select the component being rich in rare precious metal, the metallic carrier of such as automobile exhaust purifier, starting engine, generator, speed change gear, vaporizer, air-conditioning part etc.
(2) broken: by the powerful Mechanical Crushing of junked-auto component containing rare precious metal, then to grind, whole mistake 100 mesh sieve; For not breakable Nd-Fe-B alloys material etc., hydrogen can be aided with broken.
(3) powder obtained after step (2) being sieved mixes according to mass ratio 1:1.2 with sodium hydroxide, roasting between 300 DEG C, roasting time 3 hours;
(4) with material after the hot wash roasting of 89 DEG C, solid-to-liquid ratio 1:4, agitator treating 3 hours;
(5) filter, reclaim aluminium, molybdenum etc. from filtrate, filter residue acid dissolve, in order to dissolve the metallic element such as rare earth element and iron, keep hydrogen ion concentration in solution to be 1.0mol/L, temperature of reaction 75 DEG C, 3.5 hours reaction times, solid-to-liquid ratio 1:4; And then filter the solution obtained containing rare earth and iron ion and the filter residue containing precious metal;
(6) solution containing rare earth and iron ion obtained after step (5) filtration, between first regulator solution pH value to 3.8, then adds sulfide, reacts 3.2 hours, iron is precipitated completely under 30 DEG C of conditions; Filtrate is the solution containing rare earth, with rare earths such as P507 extracting and separating cerium, praseodymium, lanthanum, yttriums, then prepares rare earth oxide;
(7) leach the precious metal slag of step (5) with the mixing solutions of hydrochloric acid and clorox, obtain the solution containing gold, palladium, platinum, rhodium, add the chloroazotic acid of 3 times of quality, stir with the speed of 500r/min at 50 DEG C of temperature, leaching 2h; Leach liquor eddy flow electrodeposition gold, its electrodeposition condition is: temperature is 30 DEG C, and current density is 150A/m2, and the electrodeposition time is 1h, and electrolyte ph is 2.0, and obtain electrodeposition gold, after electrodeposition, liquid enters next step;
(8) platinum is extracted: to get in step (7) liquid after electrodeposition, add after saturated NH4Cl reacts 5h and filter, filter residue is ammonium chloroplatinate, after refining, obtain spongy platinum, except platinum filtrate enters next step:
(9) get except platinum filtrate described in step (8), in palladium: formic acid mass ratio is that the ratio of 2:1 adds formic acid, and react 1.5h under 70 DEG C of intensively stirred conditions, pH value controls 6.5, obtains thick palladium powder.
embodiment four
The recovery process of rare precious metal in abandoned car electron device, concrete steps are as follows:
(1) disassemble: abandoned car component are disassembled, select the component being rich in rare precious metal, the metallic carrier of such as automobile exhaust purifier, starting engine, generator, speed change gear, vaporizer, air-conditioning part etc.
(2) broken: by the powerful Mechanical Crushing of junked-auto component containing rare precious metal, then to grind, whole mistake 120 mesh sieve; For not breakable Nd-Fe-B alloys material etc., hydrogen can be aided with broken.
(3) powder obtained after step (2) being sieved mixes according to mass ratio 1:1 with sodium hydroxide, roasting between 400 DEG C, roasting time 2.5 hours;
(4) with material after the hot wash roasting of 78 DEG C, solid-to-liquid ratio 1:5, agitator treating 2.5 hours;
(5) filter, reclaim aluminium, molybdenum etc. from filtrate, filter residue acid dissolve, in order to dissolve the metallic element such as rare earth element and iron, keep hydrogen ion concentration in solution to be 1.8mol/L, temperature of reaction 85 DEG C, 2 hours reaction times, solid-to-liquid ratio 1:5; And then filter the solution obtained containing rare earth and iron ion and the filter residue containing precious metal;
(6) solution containing rare earth and iron ion obtained after step (5) filtration, first regulator solution pH value to 4.2, then passes into hydrogen sulfide under 28 DEG C of conditions, reacts 4 hours, iron is precipitated completely; Filtrate is the solution containing rare earth, with rare earths such as P507 extracting and separating cerium, praseodymium, lanthanum, yttriums, then prepares rare earth oxide;
(7) leach the precious metal slag of step (5) with the mixing solutions of hydrochloric acid and clorox, obtain the solution containing gold, palladium, platinum, rhodium, add the chloroazotic acid of 4 times of quality, stir with the speed of 700r/min at 60 DEG C of temperature, leaching 2h; Leach liquor eddy flow electrodeposition gold, its electrodeposition condition is: temperature is 45 DEG C, and current density is 250A/m2, and the electrodeposition time is 1h, and electrolyte ph is 3.5, and obtain electrodeposition gold, after electrodeposition, liquid enters next step;
(8) platinum is extracted: to get in step (7) liquid after electrodeposition, add after saturated NH4Cl reacts 7h and filter, filter residue is ammonium chloroplatinate, after refining, obtain spongy platinum, except platinum filtrate enters next step:
(9) get except platinum filtrate described in step (8), in palladium: formic acid mass ratio is that the ratio of 2:1 adds formic acid, and react 1h under 65 DEG C of intensively stirred conditions, pH value controls 8.0, obtains thick palladium powder.
embodiment five
The recovery process of rare precious metal in abandoned car electron device, concrete steps are as follows:
(1) disassemble: abandoned car component are disassembled, select the component being rich in rare precious metal, the metallic carrier of such as automobile exhaust purifier, starting engine, generator, speed change gear, vaporizer, air-conditioning part etc.
(2) broken: by the powerful Mechanical Crushing of junked-auto component containing rare precious metal, then to grind, whole mistake 110 mesh sieve; For not breakable Nd-Fe-B alloys material etc., hydrogen can be aided with broken.
(3) powder obtained after step (2) being sieved mixes according to mass ratio 1:0.9 with sodium hydroxide, roasting between 450 DEG C, roasting time 3 hours;
(4) with material after the hot wash roasting of 75 DEG C, solid-to-liquid ratio 1:4, agitator treating 3 hours;
(5) filter, reclaim aluminium, molybdenum etc. from filtrate, filter residue acid dissolve, in order to dissolve the metallic element such as rare earth element and iron, keep hydrogen ion concentration in solution to be 1.5mol/L, temperature of reaction 75 DEG C, 3 hours reaction times, solid-to-liquid ratio 1:5; And then filter the solution obtained containing rare earth and iron ion and the filter residue containing precious metal;
(6) solution containing rare earth and iron ion obtained after step (5) filtration, first regulator solution pH value to 3.5, then adds sulfide or passes into hydrogen sulfide under 35 DEG C of conditions, reacts 3 hours, iron is precipitated completely; Filtrate is the solution containing rare earth, with rare earths such as P507 extracting and separating cerium, praseodymium, lanthanum, yttriums, then prepares rare earth oxide;
(7) leach the precious metal slag of step (5) with the mixing solutions of hydrochloric acid and clorox, obtain the solution containing gold, palladium, platinum, rhodium, add the chloroazotic acid of 3 times of quality, stir with the speed of 800r/min at 40 DEG C of temperature, leaching 2h; Leach liquor eddy flow electrodeposition gold, its electrodeposition condition is: temperature is 35 DEG C, and current density is 300A/m2, and the electrodeposition time is 1h, and electrolyte ph is 2.5, and obtain electrodeposition gold, after electrodeposition, liquid enters next step;
(8) platinum is extracted: to get in step (7) liquid after electrodeposition, add after saturated NH4Cl reacts 5h and filter, filter residue is ammonium chloroplatinate, after refining, obtain spongy platinum, except platinum filtrate enters next step:
(9) get except platinum filtrate described in step (8), in palladium: formic acid mass ratio is that the ratio of 2:1 adds formic acid, and react 2h under 70 DEG C of intensively stirred conditions, pH value controls 7.0, obtains thick palladium powder.
Above-described embodiment is the present invention's preferably embodiment; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from spirit of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (8)
1. the recovery process of rare precious metal in abandoned car electron device, is characterized in that, comprise the following steps:
(1) disassemble: abandoned car component are disassembled, select the component being rich in rare precious metal;
(2) broken: by broken for the junked-auto component containing rare precious metal, then to grind, whole mistake 80 ~ 150 mesh sieve;
(3) powder obtained after step (2) being sieved mixes according to mass ratio 1:0.8 ~ 1.5 with sodium hydroxide, roasting between 250 DEG C ~ 500 DEG C, roasting time 2 ~ 4 hours;
(4) material after the hot wash roasting of 60 ~ 99 DEG C is then used, solid-to-liquid ratio 1:3 ~ 6, agitator treating 2 ~ 4 hours;
(5) filter, reclaim aluminium, molybdenum from filtrate, filter residue acid dissolve, keep hydrogen ion concentration in solution to be 0.5 ~ 2mol/L, temperature of reaction 60 ~ 99 DEG C, 2 ~ 4 hours reaction times, solid-to-liquid ratio 1:3 ~ 6; And then filter the solution obtained containing rare earth and iron ion and the filter residue containing precious metal;
(6) solution containing rare earth and iron ion obtained after step (5) filtration, between first regulator solution pH value to 3.5 ~ 4.5, then adds sulfide, reacts 2 ~ 4 hours, iron is precipitated completely under 20 ~ 40 DEG C of conditions; Filtrate is the solution containing rare earth, with P507 extracting and separating cerium, praseodymium, lanthanum, yttrium, neodymium, dysprosium, terbium, erbium rare earth, then prepares rare earth oxide;
(7) the precious metal slag of step (5) is leached with the mixing solutions of hydrochloric acid and clorox, obtain the solution containing gold, palladium, platinum, rhodium, add the chloroazotic acid of 1 ~ 5 times of quality, stir with the speed of 100 ~ 1000r/min at 20 ~ 70 DEG C of temperature, leach 1 ~ 2.5h; Leach liquor eddy flow electrodeposition gold, its electrodeposition condition is: temperature is 20 ~ 60 DEG C, and current density is 50 ~ 400A/m2, and the electrodeposition time is 0.5 ~ 4h, and electrolyte ph is 1.0 ~ 5.5, obtains electrodeposition gold, and the solution after electrodeposition enters next step;
(8) platinum is extracted: to get in step (7) liquid after electrodeposition, add after saturated NH4Cl reacts 2 ~ 8h and filter, filter residue is ammonium chloroplatinate, after refining, obtain spongy platinum, except platinum filtrate enters next step:
(9) get except platinum filtrate described in step (8), in palladium: formic acid mass ratio is that the ratio of 0.5 ~ 3:1 adds formic acid, under 50 ~ 90 DEG C of intensively stirred conditions, react 0.5 ~ 2h, pH value controls 6.0 ~ 9.0, obtains thick palladium powder.
2. the recovery process of rare precious metal in abandoned car electron device according to claim 1, is characterized in that, component are crushed to 100 ~ 120 order powder in step (2).
3. the recovery process of rare precious metal in abandoned car electron device according to claim 1, it is characterized in that, the maturing temperature of step (3) is 300 ~ 400 DEG C.
4. the recovery process of rare precious metal in abandoned car electron device according to claim 1, it is characterized in that, in step (5), solid-to-liquid ratio is 1:4 ~ 5.
5. the recovery process of rare precious metal in abandoned car electron device according to claim 1, is characterized in that, pH value to 3.8 ~ 4.2 of regulator solution in step (6).
6. the recovery process of rare precious metal in abandoned car electron device according to claim 1, it is characterized in that, in step (7), electrodeposition condition is: temperature is 30 ~ 45 DEG C, and current density is 150 ~ 250A/m2, the electrodeposition time is 1 ~ 2.5h, and electrolyte ph is 2.0 ~ 3.5.
7. the recovery process of rare precious metal in abandoned car electron device according to claim 1, it is characterized in that, in step (9), pH value controls 6.5 ~ 8.0.
8. the recovery process of rare precious metal in abandoned car electron device according to claim 1, it is characterized in that, described in step (6), sulfide is hydrogen sulfide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210478052.0A CN103834808B (en) | 2012-11-22 | 2012-11-22 | The recovery process of rare precious metal in a kind of abandoned car electron device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210478052.0A CN103834808B (en) | 2012-11-22 | 2012-11-22 | The recovery process of rare precious metal in a kind of abandoned car electron device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103834808A CN103834808A (en) | 2014-06-04 |
| CN103834808B true CN103834808B (en) | 2016-04-27 |
Family
ID=50798701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210478052.0A Active CN103834808B (en) | 2012-11-22 | 2012-11-22 | The recovery process of rare precious metal in a kind of abandoned car electron device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103834808B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105087934B (en) * | 2014-05-16 | 2018-05-15 | 荆门市格林美新材料有限公司 | The recovery method of useless fluorescent powder middle rare earth metal |
| TWI667202B (en) | 2018-12-07 | 2019-08-01 | 鑫鼎奈米科技股份有限公司 | Method of making inorganic platinum compound |
| CN110813409A (en) * | 2019-11-15 | 2020-02-21 | 安徽科技学院 | Waste automobile part recovery equipment |
| CN112899478A (en) * | 2021-01-13 | 2021-06-04 | 深圳市正力实业有限公司 | Device and method for efficiently purifying precious metals in waste automobile exhaust catalyst |
| CN114107690A (en) * | 2021-10-26 | 2022-03-01 | 安徽元琛环保科技股份有限公司 | Method for extracting noble metal of three-way catalyst |
| CN116970815A (en) | 2022-04-22 | 2023-10-31 | 中国科学院过程工程研究所 | Method for cleanly recycling metal palladium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787547A (en) * | 2010-02-09 | 2010-07-28 | 中南大学 | Method for recovering valuable metals from waste printed circuit board |
| CN102643992A (en) * | 2012-04-19 | 2012-08-22 | 五矿（北京）稀土研究院有限公司 | Method for recovering rare-earth waste material |
| CN102776375A (en) * | 2012-05-24 | 2012-11-14 | 北京工业大学 | Method for recycling rare earths from waste neodymium-iron-boron material |
-
2012
- 2012-11-22 CN CN201210478052.0A patent/CN103834808B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787547A (en) * | 2010-02-09 | 2010-07-28 | 中南大学 | Method for recovering valuable metals from waste printed circuit board |
| CN102643992A (en) * | 2012-04-19 | 2012-08-22 | 五矿（北京）稀土研究院有限公司 | Method for recovering rare-earth waste material |
| CN102776375A (en) * | 2012-05-24 | 2012-11-14 | 北京工业大学 | Method for recycling rare earths from waste neodymium-iron-boron material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103834808A (en) | 2014-06-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103834808B (en) | The recovery process of rare precious metal in a kind of abandoned car electron device | |
| CN108193050B (en) | Metal material recovery method in a kind of waste and old ternary power battery | |
| CN102163760B (en) | Method for separating and recovering lithium and cobalt from positive electrode material of lithium battery | |
| CN102534226B (en) | Method for extracting precious metal from spent automobile catalyst by concentration smelting-wet separation process | |
| CN110607537B (en) | Method for synchronously and efficiently extracting rare earth and iron from high-value recycled neodymium iron boron waste | |
| US8882881B2 (en) | Method for concentrating and recovering precious metals from spent mobile phone PCBS and spent auto-catalysts using waste nonferrous slag | |
| CN103582711B (en) | Valuable metal extraction agent and valuable metal extraction method using said extraction agent | |
| CN104928475B (en) | A kind of recovery method of the aluminium scrap silicon containing rare earth | |
| CN109280774B (en) | Method for extracting and enriching rare noble metals from spent catalyst | |
| CN105206889A (en) | Treatment method for waste LiMn1-x-yNixCoyO2 ternary battery cathode material | |
| CN103451433B (en) | A kind of method extracting precious metal from spent noble metals bearing catalysts | |
| CN105671304A (en) | Method for recycling rare earth and platinum group metal from spent automobile emission purification catalyst | |
| CN110592384B (en) | Novel process for simultaneously recovering valuable metal and iron from mixed type waste lithium ion battery | |
| CN102206755A (en) | Method for separating and recovering valuable elements from neodymium-iron-boron wastes | |
| CN109811127A (en) | A method of recycling valuable metal from battery electrode material leachate | |
| CN103898325B (en) | A kind of method reclaiming valuable metal from abandoned car parts | |
| CN103384002A (en) | Method for preparing electronic ternary material precursor from Ni-Co residues | |
| CN104928504A (en) | Recycling method of rare earth in aluminum silicon waste | |
| CN104388711A (en) | Method for recovering rare earth by leaching rare earth oxide molten slag | |
| CN107732350B (en) | Method for preparing red lead by using waste lead mud of positive electrode of lead-acid storage battery | |
| CN103451432A (en) | Method for extracting lead and precious metals from dead catalysts containing precious metals | |
| EP3156128B1 (en) | Ion exchange resin and method for adsorbing and separating metal | |
| CN113652550B (en) | Method for comprehensively recovering rare earth and iron from neodymium iron boron oil sludge | |
| CN101200304B (en) | Technique for producing 99% praseodymium-neodymium oxides by using Nd-Fe-B smelting slag | |
| CN114621080A (en) | Method for preparing iron manganese oxalate by using high-iron manganese oxide ore |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Xinghua Road on the south side of the 518101 Guangdong city of Shenzhen province Baoan District Baoan District Center Rongchao Binhai building A building 20 room 2008 Applicant after: Limited company of Green U.S. Applicant after: Jingmen GEM New Material Co., Ltd. Address before: Xinghua Road on the south side of the 518101 Guangdong city of Shenzhen province Baoan District Baoan District Center Rongchao Binhai building A building 20 room 2008 Applicant before: Shenzhen GEM High-tech Co., Ltd. Applicant before: Jingmen GEM New Material Co., Ltd. |
|
| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |