CA1252995A - Methode de fabrication de poudres de ferrite fines a particules hexagonales, particulierement pour l'enregistrement magnetique - Google Patents

Methode de fabrication de poudres de ferrite fines a particules hexagonales, particulierement pour l'enregistrement magnetique

Info

Publication number: CA1252995A
Authority: CA; Canada
Prior art keywords: solution; heat; addition; application; titanium
Prior art date: 1985-11-20
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.): Expired

Application number

CA000495813A

Other languages

English (en)

Inventor

Francesca Licci

Tullo Besagni

Stefano Rinaldi

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.)

Consiglio Nazionale delle Richerche CNR

Original Assignee

Consiglio Nazionale delle Richerche CNR

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.)

1985-11-20

Filing date

1985-11-20

Publication date

1989-04-25

1985-11-20 Application filed by Consiglio Nazionale delle Richerche CNR filed Critical Consiglio Nazionale delle Richerche CNR

1985-11-20 Priority to CA000495813A priority Critical patent/CA1252995A/fr

1989-04-25 Application granted granted Critical

1989-04-25 Publication of CA1252995A publication Critical patent/CA1252995A/fr

Status Expired legal-status Critical Current

Links

238000000034 method Methods 0.000 title claims abstract description 25
230000005291 magnetic effect Effects 0.000 title claims abstract description 10
229910000859 α-Fe Inorganic materials 0.000 title claims abstract description 7
238000002360 preparation method Methods 0.000 title claims description 8
239000000843 powder Substances 0.000 title claims description 6
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 35
150000001875 compounds Chemical class 0.000 claims abstract description 17
239000007795 chemical reaction product Substances 0.000 claims abstract description 15
239000010941 cobalt Substances 0.000 claims abstract description 15
229910017052 cobalt Inorganic materials 0.000 claims abstract description 15
GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 15
239000010936 titanium Substances 0.000 claims abstract description 15
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 12
229910052719 titanium Inorganic materials 0.000 claims abstract description 12
229910052788 barium Inorganic materials 0.000 claims abstract description 8
DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims abstract description 8
229910052712 strontium Inorganic materials 0.000 claims abstract description 8
CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 claims abstract description 8
BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims abstract description 7
229910052784 alkaline earth metal Inorganic materials 0.000 claims abstract description 6
150000001342 alkaline earth metals Chemical class 0.000 claims abstract description 6
229960002413 ferric citrate Drugs 0.000 claims abstract description 6
NPFOYSMITVOQOS-UHFFFAOYSA-K iron(III) citrate Chemical compound [Fe+3].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NPFOYSMITVOQOS-UHFFFAOYSA-K 0.000 claims abstract description 6
150000004649 carbonic acid derivatives Chemical class 0.000 claims abstract description 4
238000002425 crystallisation Methods 0.000 claims abstract description 4
230000008025 crystallization Effects 0.000 claims abstract description 4
YONPGGFAJWQGJC-UHFFFAOYSA-K titanium(iii) chloride Chemical compound Cl[Ti](Cl)Cl YONPGGFAJWQGJC-UHFFFAOYSA-K 0.000 claims abstract description 4
KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 33
229910052742 iron Inorganic materials 0.000 claims description 17
LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 13
230000015572 biosynthetic process Effects 0.000 claims description 12
239000000126 substance Substances 0.000 claims description 9
MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 8
QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 6
239000000203 mixture Substances 0.000 claims description 6
239000002244 precipitate Substances 0.000 claims description 6
229920002521 macromolecule Polymers 0.000 claims description 5
CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 4
125000002091 cationic group Chemical group 0.000 claims description 4
230000018044 dehydration Effects 0.000 claims description 4
238000006297 dehydration reaction Methods 0.000 claims description 4
229910001410 inorganic ion Inorganic materials 0.000 claims description 4
229910021506 iron(II) hydroxide Inorganic materials 0.000 claims description 4
NCNCGGDMXMBVIA-UHFFFAOYSA-L iron(ii) hydroxide Chemical compound [OH-].[OH-].[Fe+2] NCNCGGDMXMBVIA-UHFFFAOYSA-L 0.000 claims description 4
230000007935 neutral effect Effects 0.000 claims description 4
229910002651 NO3 Inorganic materials 0.000 claims description 3
NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 3
239000002253 acid Substances 0.000 claims description 3
229910021529 ammonia Inorganic materials 0.000 claims description 3
239000006227 byproduct Substances 0.000 claims description 3
239000012141 concentrate Substances 0.000 claims description 3
238000001556 precipitation Methods 0.000 claims description 3
238000000926 separation method Methods 0.000 claims description 3
229910052723 transition metal Inorganic materials 0.000 claims description 3
150000003624 transition metals Chemical class 0.000 claims description 3
239000001569 carbon dioxide Substances 0.000 claims description 2
229910002092 carbon dioxide Inorganic materials 0.000 claims description 2
238000000354 decomposition reaction Methods 0.000 claims description 2
239000012153 distilled water Substances 0.000 claims 2
230000008030 elimination Effects 0.000 claims 2
238000003379 elimination reaction Methods 0.000 claims 2
238000005406 washing Methods 0.000 claims 2
238000000227 grinding Methods 0.000 claims 1
JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 3
229910052751 metal Inorganic materials 0.000 abstract description 3
239000002184 metal Substances 0.000 abstract description 3
239000002245 particle Substances 0.000 abstract description 3
239000005416 organic matter Substances 0.000 abstract description 2
238000006068 polycondensation reaction Methods 0.000 abstract description 2
VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 abstract 1
239000005977 Ethylene Substances 0.000 abstract 1
239000000243 solution Substances 0.000 description 17
-1 cobal-t Chemical compound 0.000 description 3
239000000306 component Substances 0.000 description 3
230000005415 magnetization Effects 0.000 description 3
238000006467 substitution reaction Methods 0.000 description 3
KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 description 2
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
238000001033 granulometry Methods 0.000 description 2
238000010438 heat treatment Methods 0.000 description 2
WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
239000000463 material Substances 0.000 description 2
150000002739 metals Chemical class 0.000 description 2
229910052760 oxygen Inorganic materials 0.000 description 2
239000001301 oxygen Substances 0.000 description 2
239000002243 precursor Substances 0.000 description 2
239000000047 product Substances 0.000 description 2
238000006479 redox reaction Methods 0.000 description 2
XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 2
RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
LCKIEQZJEYYRIY-UHFFFAOYSA-N Titanium ion Chemical compound [Ti+4] LCKIEQZJEYYRIY-UHFFFAOYSA-N 0.000 description 1
HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
150000001450 anions Chemical class 0.000 description 1
239000000919 ceramic Substances 0.000 description 1
229910052729 chemical element Inorganic materials 0.000 description 1
239000003795 chemical substances by application Substances 0.000 description 1
150000001860 citric acid derivatives Chemical class 0.000 description 1
229910052802 copper Inorganic materials 0.000 description 1
239000010949 copper Substances 0.000 description 1
230000001419 dependent effect Effects 0.000 description 1
230000005293 ferrimagnetic effect Effects 0.000 description 1
239000003302 ferromagnetic material Substances 0.000 description 1
229910052739 hydrogen Inorganic materials 0.000 description 1
239000001257 hydrogen Substances 0.000 description 1
230000007062 hydrolysis Effects 0.000 description 1
238000006460 hydrolysis reaction Methods 0.000 description 1
XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
125000004356 hydroxy functional group Chemical group O* 0.000 description 1
150000002500 ions Chemical class 0.000 description 1
229910052749 magnesium Inorganic materials 0.000 description 1
235000001055 magnesium Nutrition 0.000 description 1
239000011777 magnesium Substances 0.000 description 1
229940091250 magnesium supplement Drugs 0.000 description 1
WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
125000002524 organometallic group Chemical group 0.000 description 1
230000005298 paramagnetic effect Effects 0.000 description 1
150000002978 peroxides Chemical class 0.000 description 1
230000001376 precipitating effect Effects 0.000 description 1
239000007787 solid Substances 0.000 description 1
150000005846 sugar alcohols Polymers 0.000 description 1
229910052721 tungsten Inorganic materials 0.000 description 1
229910052727 yttrium Inorganic materials 0.000 description 1
229910052725 zinc Inorganic materials 0.000 description 1
239000011701 zinc Substances 0.000 description 1

Landscapes

Compounds Of Iron (AREA)

CA000495813A 1985-11-20 1985-11-20 Methode de fabrication de poudres de ferrite fines a particules hexagonales, particulierement pour l'enregistrement magnetique Expired CA1252995A (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
CA000495813A CA1252995A (fr)	1985-11-20	1985-11-20	Methode de fabrication de poudres de ferrite fines a particules hexagonales, particulierement pour l'enregistrement magnetique

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA000495813A CA1252995A (fr)	1985-11-20	1985-11-20	Methode de fabrication de poudres de ferrite fines a particules hexagonales, particulierement pour l'enregistrement magnetique

Publications (1)

Publication Number	Publication Date
CA1252995A true CA1252995A (fr)	1989-04-25

Family

ID=4131925

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA000495813A Expired CA1252995A (fr)	1985-11-20	1985-11-20	Methode de fabrication de poudres de ferrite fines a particules hexagonales, particulierement pour l'enregistrement magnetique

Country Status (1)

Country	Link
CA (1)	CA1252995A (fr)

1985
- 1985-11-20 CA CA000495813A patent/CA1252995A/fr not_active Expired

Legal Events

Date	Code	Title	Description
2006-04-25	MKEX	Expiry

Publication	Publication Date	Title
US4664831A (en)	1987-05-12	Preparation of finely divided ferrite powders
US4425250A (en)	1984-01-10	Preparation of finely divided ferrite powders
Yoshii et al.	2000	Reversal of magnetization in La0. 5Pr0. 5CrO3
Haneda et al.	1987	Preparation of small particles of SrFe 12 O 19 with high coercivity by hydrolysis of metal-organic complexes
PL117590B1 (en)	1981-08-31	Process for the production of well orientable,acicular ferrimagnetic iron oxideszheleza s wysokimi svojjstvami napravlennosti
US4622159A (en)	1986-11-11	Method for the preparation of fine hexagonal ferrite powders, in particular, for magnetic recording
US6599608B2 (en)	2003-07-29	Media employing substantially spherical magneto-plumbite ferrite particles
Zong-Yu et al.	1989	A new technology of coprecipitation combined with high temperature-melting for preparing single crystal ferrite powder
KR890001971B1 (ko)	1989-06-05	코발트함유 자성산화철 분말의 제조방법
JP2791565B2 (ja)	1998-08-27	Ｓｒフェライト粒子粉末の製造法
KR970008749B1 (ko)	1997-05-28	금속옥살레이트를 전구체로 이용한 니켈-아연 페라이트 분말제조방법
Tawfik et al.	2014	Structural and magnetocaloric properties of nano Zn ferrite doped with Ni under hydrothermal conditions
Mamatha et al.	2017	Enhancement of magnetic properties of calcium hexaferrites with aluminium substitution
Rusianto et al.	2015	CHARACTERIZATIONS OF CERAMIC MAGNETS FROM IRON SAND.
JPS60255628A (ja)	1985-12-17	磁気記録用板状Ｂａフエライト微粒子粉末及びその製造法
Okano et al.	1998	Hydrothermal synthesis of aluminum bearing magnetite particles
Leccabue et al.	1988	Magnetic and morphological characterization of SrMe/sub 2/-W and SrZn-X hexaferrites prepared by chemical coprecipitation method
JPH0359007B2 (fr)	1991-09-09
Fan et al.	1988	Preparation of uniform colloidal strontium ferrite particles
US3692683A (en)	1972-09-19	Process for preparing magnetizable material
JPS62176921A (ja)	1987-08-03	板状Ｂａフエライト微粒子粉末の製造法
Micheli	1970	Preparation of lithium ferrites by coprecipitation
US5051201A (en)	1991-09-24	Preparation of finely divided hexagonal ferrite powder
JPS5841728A (ja)	1983-03-11	微細なフエライト粉末の製造方法
JPH0471012B2 (fr)	1992-11-12