JPS6470135A - Dissolving method for alloy containing noble metal by acid - Google Patents

Dissolving method for alloy containing noble metal by acid

Info

Publication number
JPS6470135A
JPS6470135A JP22723687A JP22723687A JPS6470135A JP S6470135 A JPS6470135 A JP S6470135A JP 22723687 A JP22723687 A JP 22723687A JP 22723687 A JP22723687 A JP 22723687A JP S6470135 A JPS6470135 A JP S6470135A
Authority
JP
Japan
Prior art keywords
acid
noble metal
dissolved
alloy
nox
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
JP22723687A
Other languages
Japanese (ja)
Other versions
JP2585291B2 (en
Inventor
Koichi Fujii
Shigeo Shioda
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.)
Tanaka Kikinzoku Kogyo KK
Original Assignee
Tanaka Kikinzoku Kogyo KK
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 Tanaka Kikinzoku Kogyo KK filed Critical Tanaka Kikinzoku Kogyo KK
Priority to JP22723687A priority Critical patent/JP2585291B2/en
Publication of JPS6470135A publication Critical patent/JPS6470135A/en
Application granted granted Critical
Publication of JP2585291B2 publication Critical patent/JP2585291B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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

Landscapes

  • Manufacture And Refinement Of Metals (AREA)

Abstract

PURPOSE:To efficiently dissolve alloy contg. noble metal with acid and to reduce or eliminate generation of NOx in case of dissolving it with nitric acid by subjecting it to oxidizing treatment and forming metallic oxide. CONSTITUTION:Alloy contg. noble metal is worked to a foil or a granular shape and subjected to oxidizing treatment by heating it in the oxidative atmosphere and thereafter dissolved with acid. Thus, since only base metal contained in the alloy is selectively oxidized by this treatment before it is dissolved by acid, the volume of the alloy is increased and it is made porous and oxides of Cu, Ni and Zn, etc., are sufficiently dissolved in a proper acid. Especially when it is dissolved. in nitric acid or aqua regia, generation of NOx can be suppressed and the need for suppressing dissolution workload (production) is eliminated and recovery efficiency of noble metal can be enhanced.
JP22723687A 1987-09-10 1987-09-10 Acid dissolution method for precious metal containing alloys Expired - Lifetime JP2585291B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22723687A JP2585291B2 (en) 1987-09-10 1987-09-10 Acid dissolution method for precious metal containing alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22723687A JP2585291B2 (en) 1987-09-10 1987-09-10 Acid dissolution method for precious metal containing alloys

Publications (2)

Publication Number Publication Date
JPS6470135A true JPS6470135A (en) 1989-03-15
JP2585291B2 JP2585291B2 (en) 1997-02-26

Family

ID=16857645

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22723687A Expired - Lifetime JP2585291B2 (en) 1987-09-10 1987-09-10 Acid dissolution method for precious metal containing alloys

Country Status (1)

Country Link
JP (1) JP2585291B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5044010A (en) * 1990-03-29 1991-08-27 At&T Bell Laboratories Arrangement and method for selecting an available communication channel for a cordless telephone
US5237603A (en) * 1989-12-11 1993-08-17 Sony Corporation Cordless telephone which intermittently monitors predetermined channels from all available channels
US5313653A (en) * 1992-01-30 1994-05-17 Motorola, Inc. Method for a communication unit to maintain a data base of system services
AU706534B2 (en) * 1995-07-25 1999-06-17 Protium Metals Inc. Method of purifying gold
US6805972B2 (en) * 2002-08-27 2004-10-19 Johns Hopkins University Method of forming nanoporous membranes
US20120058029A1 (en) * 2009-03-13 2012-03-08 Neo Performance Materials Limited Rhenium recovery

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5237603A (en) * 1989-12-11 1993-08-17 Sony Corporation Cordless telephone which intermittently monitors predetermined channels from all available channels
US5044010A (en) * 1990-03-29 1991-08-27 At&T Bell Laboratories Arrangement and method for selecting an available communication channel for a cordless telephone
US5313653A (en) * 1992-01-30 1994-05-17 Motorola, Inc. Method for a communication unit to maintain a data base of system services
AU706534B2 (en) * 1995-07-25 1999-06-17 Protium Metals Inc. Method of purifying gold
US6805972B2 (en) * 2002-08-27 2004-10-19 Johns Hopkins University Method of forming nanoporous membranes
US20120058029A1 (en) * 2009-03-13 2012-03-08 Neo Performance Materials Limited Rhenium recovery
US8956582B2 (en) * 2009-03-13 2015-02-17 Maritime House Metals Inc. Rhenium recovery

Also Published As

Publication number Publication date
JP2585291B2 (en) 1997-02-26

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