JPS5635706A - Production of gold powder - Google Patents

Production of gold powder

Info

Publication number
JPS5635706A
JPS5635706A JP11078879A JP11078879A JPS5635706A JP S5635706 A JPS5635706 A JP S5635706A JP 11078879 A JP11078879 A JP 11078879A JP 11078879 A JP11078879 A JP 11078879A JP S5635706 A JPS5635706 A JP S5635706A
Authority
JP
Japan
Prior art keywords
added
ferrous
soln
aqueous
chloride
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
JP11078879A
Other languages
Japanese (ja)
Other versions
JPS6137326B2 (en
Inventor
Teruo Imai
Juichi Nishii
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.)
Sumitomo Metal Mining Co Ltd
Original Assignee
Sumitomo Metal Mining Co Ltd
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 Sumitomo Metal Mining Co Ltd filed Critical Sumitomo Metal Mining Co Ltd
Priority to JP11078879A priority Critical patent/JPS5635706A/en
Publication of JPS5635706A publication Critical patent/JPS5635706A/en
Publication of JPS6137326B2 publication Critical patent/JPS6137326B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)

Abstract

PURPOSE: To improve surface characteristics and provide adequate grain sizes and grain size distributions by adding ferrous sulfate or ferrous chloride to an aqueous gold chloride soln. added with a small amount of organic dispersants and separating the gold powder thus formed.
CONSTITUTION: One or more of polyvinyl alcohol, stearic acid, sodium benzenesulfonate and glycine are used for the organic dispersant. An aqeous soln. of one or both of ferrous sulfate and ferrous chloride which dissolve in more than equiv. of water preferably at ≤30°C and have been added preferably with a small amount of sulfuric acid is added to the aqueous gold chloride soln. to separate gold powder. At this time, the organic dispersant is beforehand added at about 0.02W0.3g/ll to the aqueous gold chloride soln. or is added together with the aqueous ferrous solfate and ferrous chloride soln.
COPYRIGHT: (C)1981,JPO&Japio
JP11078879A 1979-08-30 1979-08-30 Production of gold powder Granted JPS5635706A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11078879A JPS5635706A (en) 1979-08-30 1979-08-30 Production of gold powder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11078879A JPS5635706A (en) 1979-08-30 1979-08-30 Production of gold powder

Publications (2)

Publication Number Publication Date
JPS5635706A true JPS5635706A (en) 1981-04-08
JPS6137326B2 JPS6137326B2 (en) 1986-08-23

Family

ID=14544637

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11078879A Granted JPS5635706A (en) 1979-08-30 1979-08-30 Production of gold powder

Country Status (1)

Country Link
JP (1) JPS5635706A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61147236A (en) * 1984-12-20 1986-07-04 Matsushita Electric Ind Co Ltd Electrochromic display element
JP2008019504A (en) * 2006-07-10 2008-01-31 Samsung Electro-Mechanics Co Ltd Manufacturing method of metal nanoparticle
JP2008521591A (en) * 2004-11-26 2008-06-26 ソウル ナショナル ユニバーシティー インダストリー ファンデーション New mass production method of monodisperse nanoparticles
KR20180069751A (en) 2016-11-09 2018-06-25 가부시키가이샤 고마쓰 세이사쿠쇼 Work vehicle and data calibration method
KR20180070504A (en) 2016-11-09 2018-06-26 가부시키가이샤 고마쓰 세이사쿠쇼 Work vehicle and data calibration method
KR20180073515A (en) 2016-11-09 2018-07-02 가부시키가이샤 고마쓰 세이사쿠쇼 Work vehicle and control method
WO2019058622A1 (en) 2017-09-21 2019-03-28 日立建機株式会社 Construction machine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3869280A (en) * 1973-04-23 1975-03-04 Du Pont Process for gold precipitation

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3869280A (en) * 1973-04-23 1975-03-04 Du Pont Process for gold precipitation

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61147236A (en) * 1984-12-20 1986-07-04 Matsushita Electric Ind Co Ltd Electrochromic display element
JP2008521591A (en) * 2004-11-26 2008-06-26 ソウル ナショナル ユニバーシティー インダストリー ファンデーション New mass production method of monodisperse nanoparticles
JP2011224558A (en) * 2004-11-26 2011-11-10 Seoul National Univ Industry Foundation New process for large-scale production of monodisperse nanoparticles
JP2008019504A (en) * 2006-07-10 2008-01-31 Samsung Electro-Mechanics Co Ltd Manufacturing method of metal nanoparticle
KR20180069751A (en) 2016-11-09 2018-06-25 가부시키가이샤 고마쓰 세이사쿠쇼 Work vehicle and data calibration method
KR20180070504A (en) 2016-11-09 2018-06-26 가부시키가이샤 고마쓰 세이사쿠쇼 Work vehicle and data calibration method
KR20180073515A (en) 2016-11-09 2018-07-02 가부시키가이샤 고마쓰 세이사쿠쇼 Work vehicle and control method
DE112016000719T5 (en) 2016-11-09 2018-08-09 Komatsu Ltd. Work vehicle and method for calibrating data
WO2019058622A1 (en) 2017-09-21 2019-03-28 日立建機株式会社 Construction machine

Also Published As

Publication number Publication date
JPS6137326B2 (en) 1986-08-23

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