CN106803596A - A kind of method for reclaiming platinum in waste and old fuel cell - Google Patents
A kind of method for reclaiming platinum in waste and old fuel cell Download PDFInfo
- Publication number
- CN106803596A CN106803596A CN201710047559.3A CN201710047559A CN106803596A CN 106803596 A CN106803596 A CN 106803596A CN 201710047559 A CN201710047559 A CN 201710047559A CN 106803596 A CN106803596 A CN 106803596A
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- China
- Prior art keywords
- fuel cell
- waste
- platinum
- old fuel
- iodine
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/008—Disposal or recycling of fuel cells
-
- 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
- C22B11/046—Recovery of noble metals from waste materials from manufactured products, e.g. from printed circuit boards, from photographic films, paper or baths
-
- 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
- C22B11/048—Recovery of noble metals from waste materials from spent catalysts
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/006—Wet processes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/84—Recycling of batteries or fuel cells
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Processing Of Solid Wastes (AREA)
- Fuel Cell (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention belongs to material recycle technical field, and in particular to the side of platinum in a kind of waste and old fuel cell of recovery.Step is：A, take waste and old fuel cell；B, the bipolar plates and membrane electrode of the fuel cell are separated, break process is then carried out respectively；C, with organic solvent to break process after the bipolar plates be cleaned by ultrasonic, remove the organic impurities of the bipolar plate surfaces；D, the membrane electrode after break process is pyrolyzed, is cleaned, pyrolysis residue is soaked with organic solvent then, be recycled platinum.Valuable constituent that can be effectively to waste and old fuel cell carries out renewable resources treatment, and resource recovery is carried out to valuable constituent, and handling process simplifies, and avoids the secondary pollution in processing procedure, and effects of energy conservation and environmental protection is good, with preferable economic results in society.
Description
Technical field
The invention belongs to material recycle technical field, and in particular to platinum in a kind of waste and old fuel cell of utilization salt compounded of iodine recovery
Method.
Background technology
Fuel cell (Fuel Cell) is that a kind of fuel that will be present in is converted into electric energy with the chemical energy in oxidant
TRT.Fuel and air are fed separately to fuel cell, and electricity is just rumly produced.It exteriorly has positive and negative
Pole and electrolyte etc., as a battery, but substantially it can not " storing up electricity " but one " power plant ".But, it needs electricity
Pole and electrolyte and redox reaction could generate electricity.Toyota Motor's December 1 has set up " EV causes Strategy Planning Office ", adds
Rate produces pure electric automobile (EV).Toyota succeeds volume production hybrid electric vehicle (HV) first in the whole world, and the combustion of burning hydrogen
Material battery car (FCV) is orientated as " ultimate environment-friendly vehicle ".As the progressively ripe and hydrogenation stations quantity of fuel cell technology is quick
Increase, it is contemplated that the year two thousand twenty fuel-cell vehicle will be into the outbreak period.Then, the solid waste of the fuel cell of the whole world and China
Occur and increase substantially, accumulative discarded amount also can gradually increase, when the time comes the treatment disposal and recycling of fuel cell battery
An important environmental protection subject will be turned into.
On the other hand, a large amount of battery waste products can be produced during fuel cell manufacture, carrying out recycling to it can drop
Low cost, particularly realizes that material reusable edible and waste discharge are recycled with great economic worth and environmental protection aborning
Ecological benefits.But, using the strong acid such as nitric acid or chloroazotic acid in existing leaching platinum technology, to operating environment, wastewater treatment etc. has very for it
Big influence.
The content of the invention
Therefore, the technical problems to be solved by the invention are the bottleneck for overcoming prior art, so as to propose a kind of utilization
The method that salt compounded of iodine reclaims platinum in waste and old fuel cell.
In order to solve the above technical problems, the invention discloses a kind of method for reclaiming platinum in waste and old fuel cell, including
Following processing step, specially：
A, take waste and old fuel cell；
B, the bipolar plates and membrane electrode of the fuel cell are separated, break process is then carried out respectively；
C, with organic solvent to break process after the bipolar plates be cleaned by ultrasonic, remove the bipolar plate surfaces
Organic impurities；
D, the membrane electrode after break process is pyrolyzed, is cleaned, pyrolysis residue is soaked with organic solvent then,
It is recycled platinum.
Preferably, in the step c and step d, the organic solvent is acetone, ethanol, ethylene glycol and N, N dimethyl second
One kind in acid amides.
Preferably, the step d is specially：
1) membrane electrode after will be broken is pyrolyzed, to remove PEM；
2) residue after pyrolysis is carried out into ultrasonic cleaning treatment, removes organic impurities, obtain pending material；
3) material after cleaning is placed in iodized salt solution and is soaked, leach the platinum in the membrane electrode, then carry out solid-liquid
Separate, be recycled platinum.
Preferably, the iodized salt solution is KI-iodine mixed solution.
Preferably, the pending material and the solid-liquid mass ratio of the KI-iodine mixed solution are 1:1-1：10.
Preferably, the concentration of KI is 2-6M in the KI-iodine mixed solution.
Preferably, the concentration of iodine is 3-7mM in the KI-iodine mixed solution.
Preferably, the temperature of the pyrolysis processing is 300-550 DEG C.
It is more highly preferred to, the reaction temperature of the step d is 35-95 DEG C.
Above-mentioned technical proposal of the invention has advantages below compared to existing technology：Can effectively to waste and old fuel cell
Valuable constituent carry out renewable resources treatment, carry out resource recovery to valuable constituent, handling process simplifies, and avoids treatment
During secondary pollution, effects of energy conservation and environmental protection is good, with preferable economic results in society.
Specific embodiment
Embodiment 1 is present embodiment discloses a kind of method that utilization salt compounded of iodine reclaims platinum in waste and old fuel cell, specific steps
It is as follows：
The waste and old fuel cell module of 2000W is disassembled by machinery, cracking and sorting can obtain stainless steel frame, plastics,
Graphite bi-polar plate and catalyst platinum；
With organic solvent to break process after the bipolar plates be cleaned by ultrasonic, removing the bipolar plate surfaces has
Machine impurity；The organic solvent is acetone.
Membrane electrode after break process is pyrolyzed, the temperature of the pyrolysis processing is 450 DEG C, to remove proton exchange
Film；Residue after pyrolysis is carried out into ultrasonic cleaning treatment, organic impurities is removed, pending material is obtained；Then with KI-
Iodine mixed solution (wherein the concentration of KI is 4M, and the concentration of iodine is 5mM), at a temperature of 90 DEG C, is carried out to pyrolysis residue
Stirring immersion treatment, the time is 5 hours, wherein, pending material and the solid-liquid mass ratio of KI-iodine mixed solution is 1：
1~1：5, until platinum is completely dissolved, separation of solid and liquid is then carried out, platinum is recycled, the rate of recovery of platinum is about 81%.
Embodiment 2 is present embodiment discloses a kind of method that utilization salt compounded of iodine reclaims platinum in waste and old fuel cell, specific steps
It is as follows：
The waste and old fuel cell module of 2500W is disassembled by machinery, cracking and sorting can obtain stainless steel frame, plastics,
Graphite bi-polar plate and catalyst platinum；
With organic solvent to break process after the bipolar plates be cleaned by ultrasonic, removing the bipolar plate surfaces has
Machine impurity；The organic solvent is ethanol.
Membrane electrode after break process is pyrolyzed, the temperature of the pyrolysis processing is 300 DEG C, to remove proton exchange
Film；Residue after pyrolysis is carried out into ultrasonic cleaning treatment, organic impurities is removed, pending material is obtained；Then with KI-
Iodine mixed solution (wherein the concentration of KI is 2M, and the concentration of iodine is 7mM), at a temperature of 95 DEG C, is carried out to pyrolysis residue
Stirring immersion treatment, the time is 0.5 hour, wherein, pending material is with the solid-liquid mass ratio of KI-iodine mixed solution
1：10, until platinum is completely dissolved, separation of solid and liquid is then carried out, platinum is recycled, the rate of recovery of platinum is about 80%.
Embodiment 3 is present embodiment discloses a kind of method that utilization salt compounded of iodine reclaims platinum in waste and old fuel cell, specific steps
It is as follows：
The waste and old fuel cell module of 2000W is disassembled by machinery, cracking and sorting can obtain stainless steel frame, plastics,
Graphite bi-polar plate and catalyst platinum；
With organic solvent to break process after the bipolar plates be cleaned by ultrasonic, removing the bipolar plate surfaces has
Machine impurity；The organic solvent is ethylene glycol.
Membrane electrode after break process is pyrolyzed, the temperature of the pyrolysis processing is 550 DEG C, to remove proton exchange
Film；Residue after pyrolysis is carried out into ultrasonic cleaning treatment, organic impurities is removed, pending material is obtained；Then with KI-
Iodine mixed solution (wherein the concentration of KI is 6M, and the concentration of iodine is 3mM), at a temperature of 35 DEG C, is carried out to pyrolysis residue
Stirring immersion treatment, the time is 10 hours, wherein, pending material is with the solid-liquid mass ratio of KI-iodine mixed solution
1：1, until platinum is completely dissolved, separation of solid and liquid is then carried out, platinum is recycled, the rate of recovery of platinum is about 80.3%.
Obviously, above-described embodiment is only intended to clearly illustrate example, and not to the restriction of implementation method.It is right
For those of ordinary skill in the art, can also make on the basis of the above description other multi-forms change or
Change.There is no need and unable to be exhaustive to all of implementation method.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (9)
1. a kind of method for reclaiming platinum in waste and old fuel cell, it is characterised in that include following processing step, specially：
A, take waste and old fuel cell；
B, the bipolar plates and membrane electrode of the fuel cell are separated, break process is then carried out respectively；
C, with organic solvent to break process after the bipolar plates be cleaned by ultrasonic, remove the organic of the bipolar plate surfaces
Impurity；
D, the membrane electrode after break process is pyrolyzed, is cleaned, pyrolysis residue is soaked with organic solvent then, obtained
Reclaim platinum.
2. the method for reclaiming platinum in waste and old fuel cell according to claim 1, it is characterised in that the step c and step
In rapid d, the organic solvent is acetone, ethanol, the one kind in ethylene glycol and N, N dimethyl acetamide.
3. the method for reclaiming platinum in waste and old fuel cell according to claim 2, it is characterised in that the step d is specific
For：
1) membrane electrode after will be broken is pyrolyzed, to remove PEM；
2) residue after pyrolysis is carried out into ultrasonic cleaning treatment, removes organic impurities, obtain pending material；
3) material after cleaning is placed in iodized salt solution and is soaked, leach the platinum in the membrane electrode, then carry out separation of solid and liquid,
It is recycled platinum.
4. the method for reclaiming platinum in waste and old fuel cell according to claim 3, it is characterised in that the iodized salt solution is
KI-iodine mixed solution.
5. the method for reclaiming platinum in waste and old fuel cell according to claim 4, it is characterised in that the pending thing
Expect that with the solid-liquid mass ratio of the KI-iodine mixed solution be 1:1-1：10.
6. the method for reclaiming platinum in waste and old fuel cell according to claim 5, it is characterised in that the KI-iodine
The concentration of KI is 2-6M in mixed solution.
7. the method for reclaiming platinum in waste and old fuel cell according to claim 6, it is characterised in that the KI-iodine
The concentration of iodine is 3-7mM in mixed solution.
Material is 1 with the solid-liquid mass ratio of KI-iodine mixed solution：10 .
8. the method for reclaiming platinum in waste and old fuel cell according to claim 7, it is characterised in that the pyrolysis processing
Temperature is 300-550 DEG C.
9. the method for reclaiming platinum in waste and old fuel cell according to claim 8, it is characterised in that the step d's is anti-
It is 35-95 DEG C to answer temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710047559.3A CN106803596A (en) | 2017-01-22 | 2017-01-22 | A kind of method for reclaiming platinum in waste and old fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710047559.3A CN106803596A (en) | 2017-01-22 | 2017-01-22 | A kind of method for reclaiming platinum in waste and old fuel cell |
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| Publication Number | Publication Date |
|---|---|
| CN106803596A true CN106803596A (en) | 2017-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710047559.3A Pending CN106803596A (en) | 2017-01-22 | 2017-01-22 | A kind of method for reclaiming platinum in waste and old fuel cell |
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| CN (1) | CN106803596A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107910613A (en) * | 2017-12-12 | 2018-04-13 | 深圳先进储能材料国家工程研究中心有限公司 | The recoverying and utilizing method of waste and old fuel cell |
| CN111900425A (en) * | 2020-07-03 | 2020-11-06 | 广东邦普循环科技有限公司 | Method for recycling hydrogen fuel cell of new energy automobile |
| CN112421067A (en) * | 2020-10-20 | 2021-02-26 | 江苏耀扬新能源科技有限公司 | Recovery processing method of fuel cell stack material |
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| CN1809940A (en) * | 2003-05-16 | 2006-07-26 | 尤米科尔股份公司及两合公司 | Process for the concentration of noble metals from fluorine-containing fuel cell components |
| CN101507025A (en) * | 2006-06-20 | 2009-08-12 | 巴斯福催化剂公司 | Process for recycling components of a PEM fuel cell membrane electrode assembly |
| CN105229203A (en) * | 2013-04-11 | 2016-01-06 | 赛丹思科大学 | For reclaiming the method for platinum metals from catalytic structure |
| CN105648232A (en) * | 2016-04-11 | 2016-06-08 | 许良秋 | Method for refining gold by using I2 and KI |
-
2017
- 2017-01-22 CN CN201710047559.3A patent/CN106803596A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1809940A (en) * | 2003-05-16 | 2006-07-26 | 尤米科尔股份公司及两合公司 | Process for the concentration of noble metals from fluorine-containing fuel cell components |
| CN101507025A (en) * | 2006-06-20 | 2009-08-12 | 巴斯福催化剂公司 | Process for recycling components of a PEM fuel cell membrane electrode assembly |
| CN105229203A (en) * | 2013-04-11 | 2016-01-06 | 赛丹思科大学 | For reclaiming the method for platinum metals from catalytic structure |
| CN105648232A (en) * | 2016-04-11 | 2016-06-08 | 许良秋 | Method for refining gold by using I2 and KI |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107910613A (en) * | 2017-12-12 | 2018-04-13 | 深圳先进储能材料国家工程研究中心有限公司 | The recoverying and utilizing method of waste and old fuel cell |
| CN111900425A (en) * | 2020-07-03 | 2020-11-06 | 广东邦普循环科技有限公司 | Method for recycling hydrogen fuel cell of new energy automobile |
| CN111900425B (en) * | 2020-07-03 | 2021-12-17 | 广东邦普循环科技有限公司 | Method for recycling hydrogen fuel cell of new energy automobile |
| US11699796B1 (en) | 2020-07-03 | 2023-07-11 | Guangdong Brunp Recycling Technology Co., Ltd. | Method for recycling hydrogen fuel cell of new energy vehicle |
| CN112421067A (en) * | 2020-10-20 | 2021-02-26 | 江苏耀扬新能源科技有限公司 | Recovery processing method of fuel cell stack material |
| CN112421067B (en) * | 2020-10-20 | 2022-05-27 | 江苏耀扬新能源科技有限公司 | Recovery processing method of fuel cell stack material |
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Application publication date: 20170606 |
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