JPS53128597A - Process for producing alpha ferric oxide - Google Patents

Process for producing alpha ferric oxide

Info

Publication number
JPS53128597A
JPS53128597A JP4335277A JP4335277A JPS53128597A JP S53128597 A JPS53128597 A JP S53128597A JP 4335277 A JP4335277 A JP 4335277A JP 4335277 A JP4335277 A JP 4335277A JP S53128597 A JPS53128597 A JP S53128597A
Authority
JP
Japan
Prior art keywords
ferric oxide
producing alpha
alpha ferric
iron hydroxide
alkali
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
Application number
JP4335277A
Other languages
Japanese (ja)
Inventor
Koichi Kugimiya
Yukio Terada
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP4335277A priority Critical patent/JPS53128597A/en
Publication of JPS53128597A publication Critical patent/JPS53128597A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To provide the subject process comprsing subjecting a precipitate, an iron hydroxide or oxy iron hydroxide produced by adding an alkali to an aqueous solution of a Fe compound (such as FeSO4 or the like) to hydro thermal treatment in a strong alkali, whereby the orientation degree of orienting spinel type ferrite is improved and magnetic characteristic is increased.
COPYRIGHT: (C)1978,JPO&Japio
JP4335277A 1977-04-14 1977-04-14 Process for producing alpha ferric oxide Pending JPS53128597A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4335277A JPS53128597A (en) 1977-04-14 1977-04-14 Process for producing alpha ferric oxide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4335277A JPS53128597A (en) 1977-04-14 1977-04-14 Process for producing alpha ferric oxide

Publications (1)

Publication Number Publication Date
JPS53128597A true JPS53128597A (en) 1978-11-09

Family

ID=12661450

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4335277A Pending JPS53128597A (en) 1977-04-14 1977-04-14 Process for producing alpha ferric oxide

Country Status (1)

Country Link
JP (1) JPS53128597A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5820733A (en) * 1981-07-29 1983-02-07 Kanto Denka Kogyo Kk Preparation of extremely small iron oxide not in needle state
JPS61140111A (en) * 1984-12-11 1986-06-27 サントル・ナシオナル・ド・ラ・ルシエルシユ・シアンテイフイーク Preparation of hexagonal magnetized hexagonal ferrite and use thereof as base material for magnet or magnetic recording
JPS6311567A (en) * 1986-06-30 1988-01-19 日本電気株式会社 Manufacture of ceramic composition
JPS63112663A (en) * 1986-10-24 1988-05-17 バスフ アクチェンゲゼルシャフト Thin plate-shaped pigment based on iron oxide and its production
CN106564961A (en) * 2016-11-09 2017-04-19 陕西科技大学 Alpha-Fe2O3 powder of plate-shaped structure and preparation method of alpha-Fe2O3 powder

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5024156A (en) * 1973-07-03 1975-03-15

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5024156A (en) * 1973-07-03 1975-03-15

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5820733A (en) * 1981-07-29 1983-02-07 Kanto Denka Kogyo Kk Preparation of extremely small iron oxide not in needle state
JPH0247410B2 (en) * 1981-07-29 1990-10-19 Kanto Denka Kogyo Kk
JPS61140111A (en) * 1984-12-11 1986-06-27 サントル・ナシオナル・ド・ラ・ルシエルシユ・シアンテイフイーク Preparation of hexagonal magnetized hexagonal ferrite and use thereof as base material for magnet or magnetic recording
JPS6311567A (en) * 1986-06-30 1988-01-19 日本電気株式会社 Manufacture of ceramic composition
JPS63112663A (en) * 1986-10-24 1988-05-17 バスフ アクチェンゲゼルシャフト Thin plate-shaped pigment based on iron oxide and its production
CN106564961A (en) * 2016-11-09 2017-04-19 陕西科技大学 Alpha-Fe2O3 powder of plate-shaped structure and preparation method of alpha-Fe2O3 powder

Similar Documents

Publication Publication Date Title
GB1392980A (en) Production of acicular magnetic iron oxides
JPS53128597A (en) Process for producing alpha ferric oxide
EP0178269A3 (en) Method for the preparation of fine hexagonal ferrite powders, in particular, for magnetic recording
JPS5669229A (en) Preparation of hydrous iron oxide
JPS53104897A (en) Magnetic head
JPS5475597A (en) Preparation of metal podwer for magnetic recording
JPS5379798A (en) Production of fine powder of transition metal oxide or oxyhydroxide
JPS5469594A (en) Production of ferric oxide and magnetic material
JPS53132499A (en) Production of chromium hydroxide
JPS5210226A (en) Process for preparation of aromatic hydroxy compound
JPS57124404A (en) Manufacture of magnetic iron oxide powder
JPS55154319A (en) Manufacture of hexagonal plate of alpha-iron oxide
JPS5388698A (en) Production of beta-iron oxyhydroxide powder
GB1417505A (en) Acicular ferrimagnetic iron oxide containing cobalt and silicon oxide and its production
MY107614A (en) Acicular ferromagnetic iron oxide particles and process for producing the same
JPS53115698A (en) Method for producing ferromagnetic iron oxide powder
JPS5210896A (en) Process for production of beta-iron oxy hydroxide
JPS53127400A (en) Production of goethite
JPS5583208A (en) Preparation of ferromagnetic powder
JPS5390197A (en) Preparation of iron beta-oxyhydroxide
JPS52138496A (en) Production of iron hydroxide colloid sol
JPS54130499A (en) Production of needle-like goethite
JPS5595627A (en) Manufacture of magnetic material
JPS53130735A (en) Production of electromagnetic wave-absorbing coating
JPS5669232A (en) Preparation of needlelike coethite