JPS5635706A - Production of gold powder - Google Patents
Production of gold powderInfo
- 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
Links
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
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3869280A (en) * | 1973-04-23 | 1975-03-04 | Du Pont | Process for gold precipitation |
-
1979
- 1979-08-30 JP JP11078879A patent/JPS5635706A/en active Granted
Patent Citations (1)
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)
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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