JPS56160332A - Recovering method for noble metal from used catalyst - Google Patents

Recovering method for noble metal from used catalyst

Info

Publication number
JPS56160332A
JPS56160332A JP6244580A JP6244580A JPS56160332A JP S56160332 A JPS56160332 A JP S56160332A JP 6244580 A JP6244580 A JP 6244580A JP 6244580 A JP6244580 A JP 6244580A JP S56160332 A JPS56160332 A JP S56160332A
Authority
JP
Japan
Prior art keywords
noble metal
catalyst
inorg
extraction
used catalyst
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.)
Granted
Application number
JP6244580A
Other languages
Japanese (ja)
Other versions
JPS6259057B2 (en
Inventor
Atsushi Kuroda
Fumiyoshi Noda
Kazuko Yoshida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP6244580A priority Critical patent/JPS56160332A/en
Publication of JPS56160332A publication Critical patent/JPS56160332A/en
Publication of JPS6259057B2 publication Critical patent/JPS6259057B2/ja
Granted legal-status Critical Current

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  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

PURPOSE: To recover a noble metal from a used catalyst having the metal supported on a porous inorg. substance in a high recovering yield while preventing the carrier from being leached out by subjecting the catalyst to oxidation and reduction at a regulated temp. followed by extraction with an inorg. acid.
CONSTITUTION: When a noble metal such as a Pt group element is recovered from a used catalyst having the metal supported on a porous inorg. substance such as activated alumina, the catalyst is calcined at ≥1,000°C in an oxygen atmosphere to remove stuck org. matter by oxidation. In order to reduce the noble metal oxidized by the operation, the catalyst is reduced at ≥200°C in a hydrogen atmosphere, and then extraction is carried out with an inorg. acid such as aqua regia to efficiently recover the noble metal. By raising the calcining temp. to ≥1,000°C, the carrier such as alumina is prevented from being leached out during the extraction, and the recovering process is simplified, resulting in an enhanced recovering yield.
COPYRIGHT: (C)1981,JPO&Japio
JP6244580A 1980-05-12 1980-05-12 Recovering method for noble metal from used catalyst Granted JPS56160332A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6244580A JPS56160332A (en) 1980-05-12 1980-05-12 Recovering method for noble metal from used catalyst

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6244580A JPS56160332A (en) 1980-05-12 1980-05-12 Recovering method for noble metal from used catalyst

Publications (2)

Publication Number Publication Date
JPS56160332A true JPS56160332A (en) 1981-12-10
JPS6259057B2 JPS6259057B2 (en) 1987-12-09

Family

ID=13200407

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6244580A Granted JPS56160332A (en) 1980-05-12 1980-05-12 Recovering method for noble metal from used catalyst

Country Status (1)

Country Link
JP (1) JPS56160332A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5084092A (en) * 1987-08-21 1992-01-28 The British Petroleum Company P.L.C. Method of separating metals from catalyst material
JP2007155612A (en) * 2005-12-07 2007-06-21 Tanaka Kikinzoku Kogyo Kk Quantitative analysis method of noble metal in noble metal compound
CN112226621A (en) * 2020-10-15 2021-01-15 江苏欣诺科催化剂有限公司 Method for recovering noble metal from deactivated noble metal catalyst
CN112730726A (en) * 2020-12-29 2021-04-30 中冶建筑研究总院有限公司 Method for measuring content of metal loaded in catalyst

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5084092A (en) * 1987-08-21 1992-01-28 The British Petroleum Company P.L.C. Method of separating metals from catalyst material
JP2007155612A (en) * 2005-12-07 2007-06-21 Tanaka Kikinzoku Kogyo Kk Quantitative analysis method of noble metal in noble metal compound
JP4522946B2 (en) * 2005-12-07 2010-08-11 田中貴金属工業株式会社 Quantitative analysis of noble metals in noble metal compounds
CN112226621A (en) * 2020-10-15 2021-01-15 江苏欣诺科催化剂有限公司 Method for recovering noble metal from deactivated noble metal catalyst
CN112226621B (en) * 2020-10-15 2022-05-10 江苏欣诺科催化剂有限公司 Method for recovering noble metal from deactivated noble metal catalyst
CN112730726A (en) * 2020-12-29 2021-04-30 中冶建筑研究总院有限公司 Method for measuring content of metal loaded in catalyst
CN112730726B (en) * 2020-12-29 2023-10-24 中冶建筑研究总院有限公司 Method for measuring content of metal loaded in catalyst

Also Published As

Publication number Publication date
JPS6259057B2 (en) 1987-12-09

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