CN102443707A - Method for recycling platinum from organic alcohol waste liquor - Google Patents
Method for recycling platinum from organic alcohol waste liquor Download PDFInfo
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- CN102443707A CN102443707A CN2011103898906A CN201110389890A CN102443707A CN 102443707 A CN102443707 A CN 102443707A CN 2011103898906 A CN2011103898906 A CN 2011103898906A CN 201110389890 A CN201110389890 A CN 201110389890A CN 102443707 A CN102443707 A CN 102443707A
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- platinum
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- hydrazine hydrate
- organic alcohol
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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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Abstract
The invention discloses a method for recycling platinum from organic alcohol waste liquor, belonging to the technical field of the organic chemistry. The method comprises the following steps: adjusting platinum-containing organic alcohol waste liquor to be alkaline using an alkaline reagent; then reducing platinum ions to platinum using hydrazine hydrate as a reducing agent; performing suction filtering, separating from tail liquid, and cleaning to obtain platinum; and separating the tail liquid through fractionation to obtain organic alcohol, water and hydrazine hydrate respectively. The method has the following beneficial effects: the recycling process is simple, the process flow is short, the recovery rate is high, platinum is recycled from the organic alcohol waste liquor without causing pollutions, and organic alcohol, water and hydrazine hydrate can be separated out.
Description
Technical field
The present invention relates to a kind of method that from organic pure waste liquid, reclaims platinum, belong to technical field of organic chemistry.
Background technology
Precious metal can be used as the catalyzer of oxidizing reaction, hydrogenation and dehydrogenation reaction in multiple industrial application, the efficient recovery platinum metals has great significance.Dichloro four ammonia platinum are precursor compounds of preparation carried catalyst; As midbody compound purposes is widely arranged in chemical industry; And whether platinum can access and reclaim efficiently as a kind of transition metal of costliness, and important economic implications is arranged concerning enterprise.
From organic alcoholic solution, reclaim platinum both at home and abroad at present, general adopt concentrate, the method for evaporation, roasting, organic alcohol, water and Hydrazine Hydrate 80 in organic pure waste liquid are evaporated away under different temperature respectively, and platinum is reclaimed in the residue roasting.Make the shortcoming that reclaims platinum in this way be: (1) Production Flow Chart is tediously long, and the recovery of platinum is low; (2) the organic alcohol in the raw material, Hydrazine Hydrate 80 useful component are evaporated in the atmosphere, the wasting of resources, contaminate environment; (3) energy consumption is big, and environment is unfriendly.
Summary of the invention
To the problem that above-mentioned prior art exists, the present invention provides a kind of method that from organic pure waste liquid, reclaims platinum, and it is simple to reclaim technology; Flow process is short; The recovery is high, free of contaminationly from organic pure waste liquid, reclaims platinum, can also isolate organic alcohol, water and Hydrazine Hydrate 80 simultaneously.
To achieve these goals, the technical scheme that the present invention adopts is: a kind of method that from organic pure waste liquid, reclaims platinum, and the method concrete steps of said recovery platinum are:
(1) the organic pure waste liquid of platiniferous is adjusted to alkalescence with alkaline reagents;
(2) with reduction reagent Hydrazine Hydrate 80 platinum ion is reduced to simple substance platinum;
(3) through suction filtration, obtain simple substance platinum after separating, clean with tail washings;
(4) with fractionated method tail washings is separated, obtain organic alcohol, water, Hydrazine Hydrate 80 respectively.
Organic pure waste liquid can be the ethanolic soln after dichloro four ammonia platinum use in the step (1).
Step (1) neutral and alkali reagent can be sodium hydroxide solution.
The pH value of the organic pure waste liquid after regulating in the step (1) is 11 ~ 13.
The invention has the beneficial effects as follows: recovery method is simple, and technology is reasonable, raw materials usedly directly is adjusted to alkalescence with alkaline solution, and the reduction that helps Hydrazine Hydrate 80 is handled; The simple substance platinum recovery that obtains with hydrazine hydrate reduction is high; Solution behind the separation simple substance platinum obtains organic alcohol, water and Hydrazine Hydrate 80 through fractionation, avoids evaporating the pollution that waste gas causes environment, and resource obtains recycle.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Embodiment
To combine accompanying drawing that the present invention is described further below.
As shown in Figure 1, a kind of method that from organic pure waste liquid, reclaims platinum, the method concrete steps of said recovery platinum are:
(1) the organic pure waste liquid of platiniferous is adjusted to alkalescence with alkaline reagents;
(2) with reduction reagent Hydrazine Hydrate 80 platinum ion is reduced to simple substance platinum;
(3) through suction filtration, obtain simple substance platinum after separating, clean with tail washings;
(4) with fractionated method tail washings is separated, obtain organic alcohol, water, Hydrazine Hydrate 80 respectively.
Organic pure waste liquid can be the ethanolic soln after dichloro four ammonia platinum use in the step (1).
Step (1) neutral and alkali reagent can be sodium hydroxide solution.
The pH value of the organic pure waste liquid after regulating in the step (1) is 11 ~ 13.
Preparation alkaline reduction solution: under environment, with the organic pure waste liquid of platiniferous, like the ethanolic soln after the use of dichloro four ammonia platinum with negative pressure, vent gas treatment; Regulate processing with alkaline reagents; Alkaline reagents can be a sodium hydroxide solution, and adjusting obtains alkaline reduction solution after handling, and the test of many times result proves in factory; The pH value of alkaline reduction solution is 11 ~ 13 o'clock, more helps hydrazine hydrate reduction simple substance platinum;
Hydrazine hydrate reduction: with the Hydrazine Hydrate 80 is reductive agent, under stirring state, adds Hydrazine Hydrate 80, and the platinum ion in the alkaline reduction solution is deposited to container bottom along with the adding of Hydrazine Hydrate 80 is reduced into metal simple-substance platinum gradually;
Reclaim simple substance platinum: through suction filtration, with can obtain simple substance platinum after the hydrazine hydrate reduction tail washings separates, cleans;
Fractionation by distillation hydrazine hydrate reduction tail washings: the hydrazine hydrate reduction tail washings is the mixture that dissolves each other of organic alcohol, water and Hydrazine Hydrate 80; Obtain the product under the differing temps through fractionation by distillation; Realization is to effective separation of organic alcohol, water, Hydrazine Hydrate 80; Obtain organic alcohol, water, Hydrazine Hydrate 80, and can carry out cycling and reutilization.
Claims (4)
1. method that from organic pure waste liquid, reclaims platinum is characterized in that the method concrete steps of said recovery platinum are:
(1) the organic pure waste liquid of platiniferous is adjusted to alkalescence with alkaline reagents;
(2) with reduction reagent Hydrazine Hydrate 80 platinum ion is reduced to simple substance platinum;
(3) through suction filtration, obtain simple substance platinum after separating, clean with tail washings;
(4) with fractionated method tail washings is separated, obtain organic alcohol, water, Hydrazine Hydrate 80 respectively.
2. a kind of method that from organic pure waste liquid, reclaims platinum according to claim 1 is characterized in that, organic pure waste liquid can be the ethanolic soln after dichloro four ammonia platinum use in the described step (1).
3. a kind of method that from organic pure waste liquid, reclaims platinum according to claim 1 is characterized in that described step (1) neutral and alkali reagent can be sodium hydroxide solution.
4. a kind of method that from organic pure waste liquid, reclaims platinum according to claim 1 is characterized in that the pH value of the organic pure waste liquid after regulating in the described step (1) is 11 ~ 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103898906A CN102443707A (en) | 2011-11-30 | 2011-11-30 | Method for recycling platinum from organic alcohol waste liquor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103898906A CN102443707A (en) | 2011-11-30 | 2011-11-30 | Method for recycling platinum from organic alcohol waste liquor |
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| CN102443707A true CN102443707A (en) | 2012-05-09 |
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| CN2011103898906A Pending CN102443707A (en) | 2011-11-30 | 2011-11-30 | Method for recycling platinum from organic alcohol waste liquor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105349795A (en) * | 2015-11-19 | 2016-02-24 | 昆明贵金属研究所 | Recycling method for low-concentration platinum waste liquid |
| CN108707751A (en) * | 2018-06-20 | 2018-10-26 | 贵研资源（易门）有限公司 | A kind of restoring method of the low concentration platinum group metal in high alkalinity desiliconization liquid |
| CN109811138A (en) * | 2018-11-05 | 2019-05-28 | 贵研铂业股份有限公司 | A method of from recycling iridium in organic liquid waste containing iridium |
| CN113249590A (en) * | 2021-05-13 | 2021-08-13 | 中钢集团南京新材料研究院有限公司 | Method for efficiently recovering platinum group noble metal from platinum-containing organic alcohol waste liquid |
| CN113957244A (en) * | 2021-10-26 | 2022-01-21 | 中钢集团南京新材料研究院有限公司 | Method for enriching platinum group metal in platinum-containing feed liquid |
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| GB798712A (en) * | 1955-07-25 | 1958-07-23 | Universal Oil Prod Co | Improvements in or relating to recovery of platinum group metal from catalyst |
| JPS4884030A (en) * | 1972-01-29 | 1973-11-08 | ||
| JPS54127832A (en) * | 1978-03-28 | 1979-10-04 | Mitsui Toatsu Chem Inc | Recovering platinum group metals from aromatic urethane solution |
| JPH0884030A (en) * | 1994-09-12 | 1996-03-26 | Matsushita Electric Ind Co Ltd | High frequency power amplifier |
| CN1370845A (en) * | 2001-10-09 | 2002-09-25 | 金川集团有限公司 | Refined platinum producing process |
| CN101045962A (en) * | 2006-03-31 | 2007-10-03 | 日矿金属株式会社 | Method of reclaiming platinum from selenium-containing waste liquid using hydrazine |
| CN101476044A (en) * | 2009-01-21 | 2009-07-08 | 中国化工供销太原贵金属有限公司 | Method for recycling platinum and rhodium from binary aqua regia insoluble slag |
| CN102002589A (en) * | 2010-07-07 | 2011-04-06 | 中国科学院过程工程研究所 | Method for three-phase extraction one-step separation of platinum, palladium and rhodium from leaching solution of precious metal catalyst |
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2011
- 2011-11-30 CN CN2011103898906A patent/CN102443707A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB798712A (en) * | 1955-07-25 | 1958-07-23 | Universal Oil Prod Co | Improvements in or relating to recovery of platinum group metal from catalyst |
| JPS4884030A (en) * | 1972-01-29 | 1973-11-08 | ||
| JPS54127832A (en) * | 1978-03-28 | 1979-10-04 | Mitsui Toatsu Chem Inc | Recovering platinum group metals from aromatic urethane solution |
| JPH0884030A (en) * | 1994-09-12 | 1996-03-26 | Matsushita Electric Ind Co Ltd | High frequency power amplifier |
| CN1370845A (en) * | 2001-10-09 | 2002-09-25 | 金川集团有限公司 | Refined platinum producing process |
| CN101045962A (en) * | 2006-03-31 | 2007-10-03 | 日矿金属株式会社 | Method of reclaiming platinum from selenium-containing waste liquid using hydrazine |
| CN101476044A (en) * | 2009-01-21 | 2009-07-08 | 中国化工供销太原贵金属有限公司 | Method for recycling platinum and rhodium from binary aqua regia insoluble slag |
| CN102002589A (en) * | 2010-07-07 | 2011-04-06 | 中国科学院过程工程研究所 | Method for three-phase extraction one-step separation of platinum, palladium and rhodium from leaching solution of precious metal catalyst |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105349795A (en) * | 2015-11-19 | 2016-02-24 | 昆明贵金属研究所 | Recycling method for low-concentration platinum waste liquid |
| CN108707751A (en) * | 2018-06-20 | 2018-10-26 | 贵研资源（易门）有限公司 | A kind of restoring method of the low concentration platinum group metal in high alkalinity desiliconization liquid |
| CN109811138A (en) * | 2018-11-05 | 2019-05-28 | 贵研铂业股份有限公司 | A method of from recycling iridium in organic liquid waste containing iridium |
| CN113249590A (en) * | 2021-05-13 | 2021-08-13 | 中钢集团南京新材料研究院有限公司 | Method for efficiently recovering platinum group noble metal from platinum-containing organic alcohol waste liquid |
| CN113249590B (en) * | 2021-05-13 | 2022-04-05 | 中钢集团南京新材料研究院有限公司 | Method for efficiently recovering platinum group noble metal from platinum-containing organic alcohol waste liquid |
| CN113957244A (en) * | 2021-10-26 | 2022-01-21 | 中钢集团南京新材料研究院有限公司 | Method for enriching platinum group metal in platinum-containing feed liquid |
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