CN102839287A - Method for leaching platinum metals from automobile tail gas spent catalyst by microwave heating and melting - Google Patents
Method for leaching platinum metals from automobile tail gas spent catalyst by microwave heating and melting Download PDFInfo
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- CN102839287A CN102839287A CN2012103685529A CN201210368552A CN102839287A CN 102839287 A CN102839287 A CN 102839287A CN 2012103685529 A CN2012103685529 A CN 2012103685529A CN 201210368552 A CN201210368552 A CN 201210368552A CN 102839287 A CN102839287 A CN 102839287A
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- leaching
- vehicle exhaust
- spent catalyst
- microwave heating
- catalyst
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- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 52
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 50
- 239000002184 metal Substances 0.000 title claims abstract description 50
- 239000003054 catalyst Substances 0.000 title claims abstract description 45
- 238000002386 leaching Methods 0.000 title claims abstract description 44
- -1 platinum metals Chemical class 0.000 title claims abstract description 35
- 229910052697 platinum Inorganic materials 0.000 title claims abstract description 34
- 238000010438 heat treatment Methods 0.000 title claims abstract description 19
- 238000002844 melting Methods 0.000 title abstract 2
- 230000008018 melting Effects 0.000 title abstract 2
- 238000005406 washing Methods 0.000 claims abstract description 13
- 229910052763 palladium Inorganic materials 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 229910052703 rhodium Inorganic materials 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 9
- 238000000926 separation method Methods 0.000 claims abstract description 8
- JXAZAUKOWVKTLO-UHFFFAOYSA-L sodium pyrosulfate Chemical compound [Na+].[Na+].[O-]S(=O)(=O)OS([O-])(=O)=O JXAZAUKOWVKTLO-UHFFFAOYSA-L 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 9
- 230000004927 fusion Effects 0.000 claims description 8
- 238000013019 agitation Methods 0.000 claims description 6
- 238000013467 fragmentation Methods 0.000 claims description 6
- 238000006062 fragmentation reaction Methods 0.000 claims description 6
- 230000005855 radiation Effects 0.000 claims description 2
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 10
- 238000002156 mixing Methods 0.000 abstract description 5
- 230000001698 pyrogenic effect Effects 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 239000012535 impurity Substances 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 abstract 1
- 239000000706 filtrate Substances 0.000 abstract 1
- 238000000227 grinding Methods 0.000 abstract 1
- WBHQBSYUUJJSRZ-UHFFFAOYSA-M sodium bisulfate Chemical compound [Na+].OS([O-])(=O)=O WBHQBSYUUJJSRZ-UHFFFAOYSA-M 0.000 abstract 1
- 229910000342 sodium bisulfate Inorganic materials 0.000 abstract 1
- 238000003756 stirring Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000284 extract Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 4
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010970 precious metal Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 206010011376 Crepitations Diseases 0.000 description 1
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000005063 solubilization Methods 0.000 description 1
- 230000007928 solubilization Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-O sulfonium Chemical compound [SH3+] RWSOTUBLDIXVET-UHFFFAOYSA-O 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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
Abstract
The invention provides a method for leaching platinum metals from an automobile tail gas spent catalyst by microwave heating and melting, comprising the steps of: crushing and finely grinding the automobile tail gas spent catalyst, uniformly mixing sodium bisulfate serving as a leaching agent with the automobile tail gas spent catalyst, and heating under microwave at the temperature of 300-700 DEG C for 30-150min to obtain sinter; and leaching under water dissolving and stirring at normal temperature for 10-60min, carrying out solid-liquid separation, washing filter residue three times, discarding the filter residue, collecting filtrate and cleaning solution to obtain the solution rich in platinum metals Pd and Rh. According to the method, microwave heating is adopted to simultaneously leach Pd and Rh, the leaching rate of platinum metal Pd reaches 99.97%, the leaching rate of platinum metal Rh reaches 98.91%, and both the leaching rates are improved as compared with that of single wet method or pyrogenic process leaching; and the leaching process is simple, the process flow is short, the reagent is single, the reagent consumption amount is low, the solution contains few impurity elements, the leaching rate is high, the leaching time is short and the energy consumption is low, so that the method has wide industrial application prospects.
Description
Technical field
The present invention relates to the microwave heating fusion and leach the vehicle exhaust Catalyst in Platinum Group Metal, belong to the chemical metallurgy technical field.
Background technology
Platinum metals (PGM) has extraordinary high-temperature stability and good chemical resistance like Pt, Pd, Rh etc., and has unique chemical propertys such as reducing catalysis action.The output of annual platinum metals, the whole world is about 300 tons now; Wherein 90% to derive from Russia national with South Africa; The reserves and the output of China platinum metals are few; Less than 1% of whole world reserves and output, China is seemed particularly important so strengthen the recycling of vehicle exhaust Catalyst in Platinum Group Metal.
At present, the main method that from the vehicle exhaust spent catalyst, reclaims the platinum metals has: wet method leaching, the wet method combined method of pyrogenic process and pyrogenic process.The wet method extract technology generally is the solubilization of active ingredient with the vehicle exhaust Catalyst in Platinum Group Metal, and substantially flow process is that the vehicle exhaust spent catalyst is ground, and adds the acidleach platinum metals of sening as an envoy to and gets into solution, solid-liquid separation then.In industry, having applied is normal pressure acidleach dissolving and pressurized acid leaching dissolving; But only to vehicle exhaust Catalyst in Platinum Group Metal Pt, Pd is effective for the wet method extract technology, and platinum metals Rh then is difficult to get into solution with its oxide compound; Often need carry out two sections processing to leached mud; The pressurized acid leaching dissolving needs special leaching plant again, has increased the danger of cost and operating process, is a difficult problem so the wet method extract technology extracts platinum metals Rh always.
Because wet method is extracted the problem that exists, a lot of precious metals company that reclaims all adopts pyrogenic process to reclaim precious metal, but thermal process is the platinum metals in the enrichment vehicle exhaust spent catalyst at all; It utilizes plumbous, copper, iron; Trapping agent metals such as nickel or utilize iron sulphide, nickelous sulfide sulfides to have and slag making enrichment platinum metals to the strong affinity of platinum metals, but the platinum metals is through after the enrichment; Also to pass through alloy or sulfonium that processes such as blowing obtain the platinum metals; The wet processing of final still process realizes the recovery of platinum metals, and the thermal process smelting temperature is generally higher, and equipment is had particular requirement; And the adding of trapping agent also means the introducing of impurity element and the consumption of reagent.
Also having research that wet processing and thermal process are combined, mainly is to remove a part of carrier earlier, to improve the efficient of subsequent disposal; The wet associating of fire is intended to solve the problem of the two existence greatly; Reach mutual supplement with each other's advantages, but it is long to exist technical process, problems such as smelting cost increase.
Pressurization alkali soaks the method for pre-treatment-Pressure Cyanidation for Extraction vehicle exhaust Catalyst in Platinum Group Metal and soaks pre-treatment through pressurization alkali earlier; Eliminate the oil pollution on spent catalyst surface, and open the parcel of vehicle exhaust used catalyst support, increased follow-up cyaniding leaching efficiency the platinum metals; Re-use the prussic acid pressurization and leach the vehicle exhaust Catalyst in Platinum Group Metal; The more conventional wet method of the leaching yield of platinum metals leaches has had large increase, but it has used prussic acid, and environment is had potentially dangerous; The condition that pressurization is leached is to the also corresponding improve of the requirement of equipment, and subsequent technique will destroy CN separately
-, increased cost to a certain extent.
Because automobile catalyst is the high temperature long duration of action in use, can cause the parcel and surface organic pollution of metal to the platinum metals, increased to leach and extracted difficulty; Though the whole bag of tricks has report more, the whole bag of tricks all has the shortcoming of self, says on the whole; Method is novel; It is longer that the higher method of leaching yield then exists technical process, and it is high to leach cost, and equipment has the shortcoming of particular requirement.It is not high that the short method of technical process then exists leaching yield, the shortcoming that reagent consumption is big.Consider that the difficult point that the vehicle exhaust Catalyst in Platinum Group Metal is refined is: metal produces parcel to the particle of platinum metals on the one hand; Make it be difficult to have an effect with solvent; The chemical property of platinum metals Rh itself is stable on the other hand; The most reagent of getting along well reacts, and makes it be difficult to leach.
Summary of the invention
For improving the leaching yield of vehicle exhaust Catalyst in Platinum Group Metal; The invention provides a kind of novel method of taking the microwave heating fusion to leach the vehicle exhaust Catalyst in Platinum Group Metal; Avoid conventional method of extraction, taked the method for unconventional microwave heating to extract platinum metals Pd, the Rh of automobile in useless.
The present invention realizes through following technical proposal: the method for vehicle exhaust Catalyst in Platinum Group Metal is leached in a kind of microwave heating fusion, following each step of process:
A. the fragmentation of vehicle exhaust spent catalyst is finely ground to particle diameter less than 75um;
B. the mass ratio by vehicle exhaust spent catalyst and sodium pyrosulfate is 1 ︰, 6～1 ︰ 14; With sodium pyrosulfate as leaching agent; Mix with the vehicle exhaust spent catalyst of steps A gained, under microwave, be 300～700 ℃ again and heat 30～150min, obtain sinter with temperature;
C. step B gained sinter is carried out the water-soluble agitation leach 10～60min of normal temperature, after solid-liquid separation, washing filter residue three times discards filter residue, collects the solution that filtrating and washings promptly obtain being rich in platinum metals Pd, Rh again.
The content of vehicle exhaust Catalyst in Platinum Group Metal Pd in the said steps A is that the content of 1300～1700g/t, Rh is 180～240g/t.
The microwave radiation condition of said step B is that microwave frequency is 2450MHz.
Sodium pyrosulfate among the said step B is an analytical pure.
Microwave leached mud particle profile is irregular, and the surface is obviously visible to have a large amount of crackles, shows that material is when participating in reaction; The destruction that the interior molecules vibration has also caused self structure is come out the platinum metals of parcel, makes the platinum metals more be prone to contact with reagent and react; Increased the solid-liquid exchange area; Strengthened heat and mass, therefore promoted reaction to have improved leaching yield.And the leached mud microtexture of traditional method and raw material is similar, is essentially circular granular, as far as normal experiment; Show carrying out on the material particles surface that solid-liquid reaction can only be simple, heat and mass transfer process also carries out on the particulate surface from outside to inside, the platinum metals reaction that reagent will be inner with carrier granule; Just must destroy carrier earlier; So in traditional method, must increase amount of reagent and temperature of reaction, could improve leaching yield.Therefore leaching of the present invention has obvious superiority.
Effect of the present invention and advantage: this method is taked microwave heating, and the two leaches simultaneously to make Pd and Rh, and the leaching yield of platinum metals Pd reaches 99.97%, and the leaching yield of platinum metals Rh reaches more than 98.91%; The leaching yield that more simple wet method or pyrogenic process leach all increases, and leaching process is simple, and technical process is short, and reagent is single; Reagent consumption is little, and the solution impurity element is few, and leaching rate is fast; Extraction time is short, and energy consumption is low, and wide industrial applicability prospect is arranged.
Embodiment
To combine embodiment further to illustrate content of the present invention below, but these instances do not limit protection scope of the present invention.
Embodiment 1
A. be that the content of 1300～1700g/t, Rh is that the vehicle exhaust spent catalyst fragmentation of 180～240g/t is finely ground to particle diameter less than 75um with the content of Pd;
B. the mass ratio by vehicle exhaust spent catalyst and sodium pyrosulfate is 1 ︰ 6; With analytical pure sulfuric acid hydrogen sodium as leaching agent; Mixing with the vehicle exhaust spent catalyst of steps A gained, is to be 400 ℃ of heating 60min with temperature under the microwave of 2450MHz in frequency again, obtains sinter;
C. step B gained sinter is carried out the water-soluble agitation leach 60min of normal temperature, after solid-liquid separation, washing filter residue three times discards filter residue, collects the solution that filtrating and washings promptly obtain being rich in platinum metals Pd, Rh again.The leaching yield of Pd is 98.86 %, and the leaching yield of Rh is 92.42 %.
Embodiment 2
A. be that the content of 1400g/t, Rh is that to be finely ground to particle diameter be 70um for the vehicle exhaust spent catalyst fragmentation of 240g/t with the content of Pd;
B. the mass ratio by vehicle exhaust spent catalyst and sodium pyrosulfate is 1 ︰ 10; With analytical pure sulfuric acid hydrogen sodium as leaching agent; Mixing with the vehicle exhaust spent catalyst of steps A gained, is to be 600 ℃ of heating 30min with temperature under the microwave of 2450MHz in frequency again, obtains sinter;
C. step B gained sinter is carried out the water-soluble agitation leach 50min of normal temperature, after solid-liquid separation, washing filter residue three times discards filter residue, collects the solution that filtrating and washings promptly obtain being rich in platinum metals Pd, Rh again.The leaching yield of Pd is 98.97 %, and the leaching yield of Rh is 92.91 %.
Embodiment 3
A. be that the content of 1300g/t, Rh is that to be finely ground to particle diameter be 65um for the vehicle exhaust spent catalyst fragmentation of 180g/t with the content of Pd;
B. the mass ratio by vehicle exhaust spent catalyst and sodium pyrosulfate is 1 ︰ 14; With analytical pure sulfuric acid hydrogen sodium as leaching agent; Mixing with the vehicle exhaust spent catalyst of steps A gained, is to be 300 ℃ of heating 150min with temperature under the microwave of 2450MHz in frequency again, obtains sinter;
C. step B gained sinter is carried out the water-soluble agitation leach 10min of normal temperature, after solid-liquid separation, washing filter residue three times discards filter residue, collects the solution that filtrating and washings promptly obtain being rich in platinum metals Pd, Rh again.The leaching yield of Pd is 92.15 %, and the leaching yield of Rh is 91.497%, energy consumption 0.45kWh; And similarity condition adopts conventional heating down: the leaching yield of Pd is 89.94%, and the leaching yield of Rh is 83.397%, energy consumption 2.1kWh.
Embodiment 4
A. be that the content of 1700g/t, Rh is that to be finely ground to particle diameter be 55um for the vehicle exhaust spent catalyst fragmentation of 200g/t with the content of Pd;
B. the mass ratio by vehicle exhaust spent catalyst and sodium pyrosulfate is 1 ︰ 12; With analytical pure sulfuric acid hydrogen sodium as leaching agent; Mixing with the vehicle exhaust spent catalyst of steps A gained, is to be 700 ℃ of heating 100min with temperature under the microwave of 2450MHz in frequency again, obtains sinter;
C. step B gained sinter is carried out the water-soluble agitation leach 40min of normal temperature, after solid-liquid separation, washing filter residue three times discards filter residue, collects the solution that filtrating and washings promptly obtain being rich in platinum metals Pd, Rh again.The leaching yield of Pd is 98.24 %, and the leaching yield of Rh is 93.16%.
Claims (4)
1. the method for vehicle exhaust Catalyst in Platinum Group Metal is leached in a microwave heating fusion, it is characterized in that through following each step:
A. the fragmentation of vehicle exhaust spent catalyst is finely ground to particle diameter less than 75um;
B. the mass ratio by vehicle exhaust spent catalyst and sodium pyrosulfate is 1 ︰, 6～1 ︰ 14; With sodium pyrosulfate as leaching agent; Mix with the vehicle exhaust spent catalyst of steps A gained, under microwave, be 300～700 ℃ again and heat 30～150min, obtain sinter with temperature;
C. step B gained sinter is carried out the water-soluble agitation leach 10～60min of normal temperature, after solid-liquid separation, washing filter residue three times discards filter residue, collects the solution that filtrating and washings promptly obtain being rich in platinum metals Pd, Rh again.
2. the method for vehicle exhaust Catalyst in Platinum Group Metal is leached in microwave heating fusion according to claim 1, and it is characterized in that: the content of the vehicle exhaust Catalyst in Platinum Group Metal Pd in the said steps A is that the content of 1300～1700g/t, Rh is 180～240g/t.
3. the method for vehicle exhaust Catalyst in Platinum Group Metal is leached in microwave heating fusion according to claim 1, and it is characterized in that: the microwave radiation condition of said step B is that microwave frequency is 2450MHz.
4. the method for vehicle exhaust Catalyst in Platinum Group Metal is leached in microwave heating fusion according to claim 1, and it is characterized in that: the sodium pyrosulfate among the said step B is an analytical pure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103685529A CN102839287A (en) | 2012-09-28 | 2012-09-28 | Method for leaching platinum metals from automobile tail gas spent catalyst by microwave heating and melting |
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| CN2012103685529A CN102839287A (en) | 2012-09-28 | 2012-09-28 | Method for leaching platinum metals from automobile tail gas spent catalyst by microwave heating and melting |
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Cited By (12)
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| CN104294048A (en) * | 2014-09-18 | 2015-01-21 | 中国海洋石油总公司 | Method for recycling platinum group metals from iron carrier invalid automobile exhaust catalyst |
| CN106186626A (en) * | 2016-08-30 | 2016-12-07 | 三川德青科技有限公司 | The process that a kind of electroplating sludge safety, decrement are disposed |
| CN106497607A (en) * | 2016-09-21 | 2017-03-15 | 昆明理工大学 | A kind of method for inactivating the quick decarburization of oil dead catalyst microwave and preparing water-gas |
| CN107460338A (en) * | 2016-06-02 | 2017-12-12 | 昆明冶金高等专科学校 | A kind of method of fiery wet-process beneficiation low grade noble metal |
| CN107557587A (en) * | 2017-09-19 | 2018-01-09 | 中南大学 | A kind of method of microwave heating melting trapping platinum group metal |
| CN107574304A (en) * | 2016-11-21 | 2018-01-12 | 广西大学 | A kind of method of microwave calcining pretreatment automobile spent catalyst |
| CN107586966A (en) * | 2016-07-08 | 2018-01-16 | 昆明冶金高等专科学校 | A kind of method of fast activating and dissolving indissoluble noble metal |
| CN108160109A (en) * | 2017-11-17 | 2018-06-15 | 昆明理工大学 | A kind of microwave-assisted regeneration FCC dead catalyst methods |
| JP2019188361A (en) * | 2018-04-26 | 2019-10-31 | 株式会社山形県自動車販売店リサイクルセンター | Recovery method of supported metal from on-vehicle catalyst |
| CN110983028A (en) * | 2019-11-21 | 2020-04-10 | 云龙县铂翠贵金属科技有限公司 | Method for recovering platinum group metal from automobile exhaust purification waste catalyst |
| CN111100997A (en) * | 2018-10-26 | 2020-05-05 | 贵研资源（易门）有限公司 | Method for recovering ruthenium from catalyst for preparing chlorine by using spent hydrogen chloride |
| CN112921181A (en) * | 2021-01-26 | 2021-06-08 | 广东省科学院资源综合利用研究所 | Method for recovering platinum group metal in automobile waste catalyst |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104294048A (en) * | 2014-09-18 | 2015-01-21 | 中国海洋石油总公司 | Method for recycling platinum group metals from iron carrier invalid automobile exhaust catalyst |
| CN107460338A (en) * | 2016-06-02 | 2017-12-12 | 昆明冶金高等专科学校 | A kind of method of fiery wet-process beneficiation low grade noble metal |
| CN107586966B (en) * | 2016-07-08 | 2020-09-15 | 昆明冶金高等专科学校 | Method for quickly activating and dissolving insoluble noble metal |
| CN107586966A (en) * | 2016-07-08 | 2018-01-16 | 昆明冶金高等专科学校 | A kind of method of fast activating and dissolving indissoluble noble metal |
| CN106186626A (en) * | 2016-08-30 | 2016-12-07 | 三川德青科技有限公司 | The process that a kind of electroplating sludge safety, decrement are disposed |
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| CN107574304A (en) * | 2016-11-21 | 2018-01-12 | 广西大学 | A kind of method of microwave calcining pretreatment automobile spent catalyst |
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