RU98113576A - METHOD FOR PROCESSING WASTE CATALYSTS CONTAINING PLATINUM METALS - Google Patents

METHOD FOR PROCESSING WASTE CATALYSTS CONTAINING PLATINUM METALS

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Publication number
RU98113576A
RU98113576A RU98113576/02A RU98113576A RU98113576A RU 98113576 A RU98113576 A RU 98113576A RU 98113576/02 A RU98113576/02 A RU 98113576/02A RU 98113576 A RU98113576 A RU 98113576A RU 98113576 A RU98113576 A RU 98113576A
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RU
Russia
Prior art keywords
paragraphs
carried out
sulfuric acid
solution
processing
Prior art date
Application number
RU98113576/02A
Other languages
Russian (ru)
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RU2138568C1 (en
Inventor
С.Е. Годжиев
В.А. Ковтун
В.М. Парецкий
Ф.Горбульский Грегори
Е.Михельсон Ари
Л.Фишкин Ефим
Original Assignee
В.М. Парецкий
Ефим Д.Фишкин
Filing date
Publication date
Application filed by В.М. Парецкий, Ефим Д.Фишкин filed Critical В.М. Парецкий
Priority to RU98113576A priority Critical patent/RU2138568C1/en
Priority claimed from RU98113576A external-priority patent/RU2138568C1/en
Publication of RU98113576A publication Critical patent/RU98113576A/en
Application granted granted Critical
Publication of RU2138568C1 publication Critical patent/RU2138568C1/en

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Claims (7)

1. Способ переработки отработанных катализаторов, содержащих платиновые металлы, на основе оксидов алюминия, кремния и магния, включающий измельчение исходного катализатора, обработку раствором серной кислоты, фильтрацию с получением концентрата, отличающийся тем, что измельчение ведут до 3 мм, обработку раствором серной кислоты осуществляют в присутствии неорганического восстановителя, нерастворимый остаток после фильтрации шихтуют с гидроксидом щелочного металла при соотношении 1:(0,8 - 1,2) и спекают при температуре 400-700°С в течение 1-2 ч с последующим водным выщелачиванием в присутствии щелочного реагента.1. A method of processing spent catalysts containing platinum metals based on aluminum, silicon and magnesium oxides, including grinding the initial catalyst, processing with a solution of sulfuric acid, filtering to obtain a concentrate, characterized in that grinding is carried out up to 3 mm, processing with a solution of sulfuric acid is carried out in the presence of an inorganic reducing agent, the insoluble residue is filtered after filtration with alkali metal hydroxide at a ratio of 1: (0.8 - 1.2) and sintered at a temperature of 400-700 ° C for 1-2 hours followed by aqueous leaching in the presence of an alkaline reagent. 2. Способ по п. 1, отличающийся тем, что в качестве гидроксида щелочного металла при спекании используют гидроксид натрия или калия. 2. The method according to p. 1, characterized in that as the alkali metal hydroxide during sintering, sodium or potassium hydroxide is used. 3. Способ по п. 1 или 2, отличающийся тем, что в качестве щелочного реагента при водном выщелачивании используют гидроксид натрия или калия с концентрацией 10-20 г/дм3.3. The method according to p. 1 or 2, characterized in that as the alkaline reagent for aqueous leaching use sodium or potassium hydroxide with a concentration of 10-20 g / DM 3 . 4. Способ по любому из пп. 1-3, отличающийся тем, что в качестве неорганического восстановителя используют соединения меди (I). 4. The method according to any one of paragraphs. 1-3, characterized in that as the inorganic reducing agent use compounds of copper (I). 5. Способ по любому из пунктов 1-4 отличающийся тем, что в качестве соединения меди (I) используют оксид меди (I) крупностью -0,05 мм при соотношении с металлами платиновой группы 0,2-0,5 от стехиометрии реакции восстановления. 5. The method according to any one of paragraphs 1-4, characterized in that copper (I) is used as copper oxide (I) with a grain size of -0.05 mm when the ratio with the platinum group metals is 0.2-0.5 from the stoichiometry of the reduction reaction . 6. Способ по любому из пп. 1-6, отличающийся тем, что водное выщелачивание ведут при Т:Ж = 1: (3-5) в течение 1-2 ч. 6. The method according to any one of paragraphs. 1-6, characterized in that the water leaching is carried out at T: W = 1: (3-5) for 1-2 hours 7. Способ по любому из пп. 1-7, отличающийся тем, что кислотную обработку ведут раствором серной кислоты при Т:Ж = 1:(3-5), температуре 50-90°С и перемешивании в течение 4-6 ч. 7. The method according to any one of paragraphs. 1-7, characterized in that the acid treatment is carried out with a solution of sulfuric acid at T: W = 1: (3-5), a temperature of 50-90 ° C and stirring for 4-6 hours
RU98113576A 1998-07-13 1998-07-13 Method of processing exhausted catalysts containing platinum-group metals RU2138568C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU98113576A RU2138568C1 (en) 1998-07-13 1998-07-13 Method of processing exhausted catalysts containing platinum-group metals

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RU98113576A RU2138568C1 (en) 1998-07-13 1998-07-13 Method of processing exhausted catalysts containing platinum-group metals

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RU98113576A true RU98113576A (en) 1999-09-20
RU2138568C1 RU2138568C1 (en) 1999-09-27

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019113198B3 (en) 2018-06-22 2019-10-24 Bernd Kunze Leaching process for precious metals from spent catalysts
DE102020001363B3 (en) 2020-02-29 2020-08-06 Bernd Kunze Leaching process for precious metals from spent catalysts

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102492853B (en) * 2011-12-19 2015-07-01 云南民族大学 P-NBR type reagent and application of p-NBR type reagent in solid-phase extraction of platinum
RU2531333C2 (en) * 2012-06-25 2014-10-20 Радик Расулович Ахметов Method of extraction of platinoids from spent automotive catalysts
CN103276215B (en) * 2013-06-03 2014-08-20 贵研资源（易门）有限公司 Method for recovering noble metal from waste catalyst
CN106011477B (en) * 2016-06-28 2017-12-26 昆明贵金属研究所 A kind of method that platinum group metal is reclaimed from spent auto-catalysts
RU2678627C1 (en) * 2017-08-07 2019-01-30 Общество с ограниченной ответственностью "Легкие металлы" Method of processing spent catalysts containing noble metals and rhenium
CN114892015A (en) * 2022-05-05 2022-08-12 昆明贵研新材料科技有限公司 From useless Al 2 O 3 Method for enriching and recovering precious metals in base precious metal catalyst

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019113198B3 (en) 2018-06-22 2019-10-24 Bernd Kunze Leaching process for precious metals from spent catalysts
WO2019243635A1 (en) 2018-06-22 2019-12-26 Bernd Kunze Process for leaching noble metals from spent catalysts
DE102020001363B3 (en) 2020-02-29 2020-08-06 Bernd Kunze Leaching process for precious metals from spent catalysts

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