JPS55167137A - Manufacture of yellow iron oxide - Google Patents
Manufacture of yellow iron oxideInfo
- Publication number
- JPS55167137A JPS55167137A JP7428279A JP7428279A JPS55167137A JP S55167137 A JPS55167137 A JP S55167137A JP 7428279 A JP7428279 A JP 7428279A JP 7428279 A JP7428279 A JP 7428279A JP S55167137 A JPS55167137 A JP S55167137A
- Authority
- JP
- Japan
- Prior art keywords
- soln
- ammonium
- sulfate
- ferrous sulfate
- iron oxide
- 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.)
- Pending
Links
Landscapes
- Compounds Of Iron (AREA)
Abstract
PURPOSE: To manufacture yellow iron oxide in a high yield without deteriorating the quality by carrying out oxidation reaction of an aqueous soln. contg. ferrous sulfate at the saturation solubility or more, that is, at a state where a solid phase is present.
CONSTITUTION: Ferrous sulfate is added to an aqueous soln. to the solubility or more, that is, until a solid phase coexists in the system. This soln. is adjusted to pH 3W7. As the alkali source ammonia, ammonium hydroxide, ammonium carbonate, ammonium hydrogencarbonate or the like is used, and an alkali source of the same kind is used in the following oxidation process. Sulfate is coexsistent preferably in the form of ammonium sulfate, and it is 2W4 times as much as ferrous sulfate by mol. The soln. is then heated to 40W80°C, and by blowing oxygen-contg. gas, grain forming reaction is carried out.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7428279A JPS55167137A (en) | 1979-06-12 | 1979-06-12 | Manufacture of yellow iron oxide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7428279A JPS55167137A (en) | 1979-06-12 | 1979-06-12 | Manufacture of yellow iron oxide |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55167137A true JPS55167137A (en) | 1980-12-26 |
Family
ID=13542597
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7428279A Pending JPS55167137A (en) | 1979-06-12 | 1979-06-12 | Manufacture of yellow iron oxide |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55167137A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5692125A (en) * | 1979-11-29 | 1981-07-25 | Hellenique Prod Engrais Chim | Yellow iron oxide pigment and its manufacture |
US4459276A (en) * | 1981-09-17 | 1984-07-10 | Agency Of Industrial Science & Technology | Yellow iron oxide pigment and method for manufacture thereof |
CN103318970A (en) * | 2013-06-25 | 2013-09-25 | 升华集团德清华源颜料有限公司 | Medium-temperature-resistant iron oxide yellow pigment |
-
1979
- 1979-06-12 JP JP7428279A patent/JPS55167137A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5692125A (en) * | 1979-11-29 | 1981-07-25 | Hellenique Prod Engrais Chim | Yellow iron oxide pigment and its manufacture |
JPH0232219B2 (en) * | 1979-11-29 | 1990-07-19 | Bayer Ag | |
US4459276A (en) * | 1981-09-17 | 1984-07-10 | Agency Of Industrial Science & Technology | Yellow iron oxide pigment and method for manufacture thereof |
CN103318970A (en) * | 2013-06-25 | 2013-09-25 | 升华集团德清华源颜料有限公司 | Medium-temperature-resistant iron oxide yellow pigment |
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