JPS5376197A - Production of magnetic iron oxide - Google Patents

Production of magnetic iron oxide

Info

Publication number
JPS5376197A
JPS5376197A JP15163776A JP15163776A JPS5376197A JP S5376197 A JPS5376197 A JP S5376197A JP 15163776 A JP15163776 A JP 15163776A JP 15163776 A JP15163776 A JP 15163776A JP S5376197 A JPS5376197 A JP S5376197A
Authority
JP
Japan
Prior art keywords
iron oxide
magnetic iron
production
berthollide
slurrying
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
JP15163776A
Other languages
Japanese (ja)
Other versions
JPS606897B2 (en
Inventor
Koichi Masaki
Shinichiro Idesawa
Tatsuji Kitamoto
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film 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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP51151637A priority Critical patent/JPS606897B2/en
Publication of JPS5376197A publication Critical patent/JPS5376197A/en
Publication of JPS606897B2 publication Critical patent/JPS606897B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Hard Magnetic Materials (AREA)
  • Compounds Of Iron (AREA)

Abstract

PURPOSE: To obtain the Co-modified title produce which has excellent erasing characteristics and is stable to press. and heat, by slurrying Berthollide magnetic iron oxide whose oxidation degree is made between Fe2O4 and ϒ - Fe2O3 and stirring the slurry at specified pH in the coexistence of Co(OH)2 so as to make the Co content among the particles uniform.
COPYRIGHT: (C)1978,JPO&Japio
JP51151637A 1976-12-17 1976-12-17 Manufacturing method of magnetic iron oxide Expired JPS606897B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP51151637A JPS606897B2 (en) 1976-12-17 1976-12-17 Manufacturing method of magnetic iron oxide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51151637A JPS606897B2 (en) 1976-12-17 1976-12-17 Manufacturing method of magnetic iron oxide

Publications (2)

Publication Number Publication Date
JPS5376197A true JPS5376197A (en) 1978-07-06
JPS606897B2 JPS606897B2 (en) 1985-02-21

Family

ID=15522891

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51151637A Expired JPS606897B2 (en) 1976-12-17 1976-12-17 Manufacturing method of magnetic iron oxide

Country Status (1)

Country Link
JP (1) JPS606897B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5556016A (en) * 1978-10-20 1980-04-24 Hitachi Maxell Ltd Production of ferromagnetic powder
CN101824237A (en) * 2010-05-05 2010-09-08 太原理工大学 Method for modifying and whitening kaolin

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5556016A (en) * 1978-10-20 1980-04-24 Hitachi Maxell Ltd Production of ferromagnetic powder
JPS6242857B2 (en) * 1978-10-20 1987-09-10 Hitachi Maxell
CN101824237A (en) * 2010-05-05 2010-09-08 太原理工大学 Method for modifying and whitening kaolin

Also Published As

Publication number Publication date
JPS606897B2 (en) 1985-02-21

Similar Documents

Publication Publication Date Title
JPS5314185A (en) Production of oxygen absorbent
GB1347615A (en) Cobalt doped magnetic iron oxide particles
JPS5376197A (en) Production of magnetic iron oxide
KR850004869A (en) Fusiform ferromagnetic alloy particles and preparation method thereof
JPS56156706A (en) Manufacture of magnetic metallic powder
GB2001942A (en) Methods of making magnetic powders and magnetic recording media including magnetic powders so made
JPS5275700A (en) Production of magnetic iron oxide powder including co
JPS52109496A (en) Production of beta-oxy iron hydroxide
JPS53115698A (en) Method for producing ferromagnetic iron oxide powder
JPS55149136A (en) Manufacture of iron oxide hydrate
JPS5341202A (en) Novel magnetic recording medium
JPS5421805A (en) Magnetic recording medium
JPS53115697A (en) Method for producing ferromagnetic iron oxide powder
JPS573719A (en) Preparation of gamma-type ferric oxide
JPS56156705A (en) Manufacture of magnetic metallic powder
JPS5330800A (en) Peparing magnetic thin film
JPS52111409A (en) Preparation of reduced iron made from dust in iron making as main raw material
JPS54130499A (en) Production of needle-like goethite
JPS5585606A (en) Production of magnetic metal iron powder
JPS528915A (en) Magnetic alloy
JPS5742546A (en) Preparation of magnetite from iron slag
JPS5384196A (en) Manufacturing method of magnetic iron oxide
JPS56160329A (en) Manufacture of magnetic iron oxide powder
JPS5219299A (en) Magnetic powder for magnetic recording medium and the process for prod ucing the same
JPS52100398A (en) Production of beta-iron oxyhydroxide