GB1287614A - Process for the preparation of ferromagnetic chromium dioxide - Google Patents
Process for the preparation of ferromagnetic chromium dioxideInfo
- Publication number
- GB1287614A GB1287614A GB4913769A GB4913769A GB1287614A GB 1287614 A GB1287614 A GB 1287614A GB 4913769 A GB4913769 A GB 4913769A GB 4913769 A GB4913769 A GB 4913769A GB 1287614 A GB1287614 A GB 1287614A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cro
- chromium oxide
- stage
- preparation
- tellurium
- 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.)
- Expired
Links
- 230000005294 ferromagnetic effect Effects 0.000 title abstract 2
- 229940090961 chromium dioxide Drugs 0.000 title 1
- IAQWMWUKBQPOIY-UHFFFAOYSA-N chromium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Cr+4] IAQWMWUKBQPOIY-UHFFFAOYSA-N 0.000 title 1
- AYTAKQFHWFYBMA-UHFFFAOYSA-N chromium(IV) oxide Inorganic materials O=[Cr]=O AYTAKQFHWFYBMA-UHFFFAOYSA-N 0.000 title 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 abstract 4
- 239000011651 chromium Substances 0.000 abstract 4
- 229910000423 chromium oxide Inorganic materials 0.000 abstract 4
- 238000010438 heat treatment Methods 0.000 abstract 2
- 239000003607 modifier Substances 0.000 abstract 2
- 229910052714 tellurium Inorganic materials 0.000 abstract 2
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 abstract 2
- KNIUHBNRWZGIQQ-UHFFFAOYSA-N 7-diethoxyphosphinothioyloxy-4-methylchromen-2-one Chemical compound CC1=CC(=O)OC2=CC(OP(=S)(OCC)OCC)=CC=C21 KNIUHBNRWZGIQQ-UHFFFAOYSA-N 0.000 abstract 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 1
- 229940058905 antimony compound for treatment of leishmaniasis and trypanosomiasis Drugs 0.000 abstract 1
- 150000001463 antimony compounds Chemical class 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 150000004679 hydroxides Chemical class 0.000 abstract 1
- 235000014413 iron hydroxide Nutrition 0.000 abstract 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract 1
- 235000013980 iron oxide Nutrition 0.000 abstract 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 229910006540 α-FeOOH Inorganic materials 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
- G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
- G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
- G11B5/70626—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances
- G11B5/70636—CrO2
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G37/00—Compounds of chromium
- C01G37/02—Oxides or hydrates thereof
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/42—Magnetic properties
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Hard Magnetic Materials (AREA)
- Magnetic Record Carriers (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19681802469 DE1802469A1 (de) | 1968-10-11 | 1968-10-11 | Verfahren zur Herstellung von ferromagnetischem Chromdioxid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1287614A true GB1287614A (en) | 1972-09-06 |
Family
ID=5710250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4913769A Expired GB1287614A (en) | 1968-10-11 | 1969-10-07 | Process for the preparation of ferromagnetic chromium dioxide |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS4840799B1 (enExample) |
| BE (1) | BE740103A (enExample) |
| CH (1) | CH522567A (enExample) |
| DE (1) | DE1802469A1 (enExample) |
| FR (1) | FR2020441B1 (enExample) |
| GB (1) | GB1287614A (enExample) |
| NL (1) | NL6915398A (enExample) |
| SE (1) | SE365492B (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115188918A (zh) * | 2022-04-13 | 2022-10-14 | 武汉中原长江科技发展有限公司 | 一种添加活化剂的铬氧化物复合材料及其制备方法与应用 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1244457B (de) * | 1963-01-04 | 1967-07-13 | Ernst Zimlich | Motorisch angetriebener Rasenmaeher mit waagerecht umlaufendem Messer |
| DE2022820C3 (de) * | 1970-05-11 | 1980-01-03 | Basf Ag, 6700 Ludwigshafen | Verfahren zur Herstellung von hochkoerzitivem Chromdioxid |
| IT1045191B (it) * | 1975-10-31 | 1980-05-10 | Montedison Spa | Procedimento per la produzione di biossido di cromo ferromagnetico |
-
1968
- 1968-10-11 DE DE19681802469 patent/DE1802469A1/de active Pending
-
1969
- 1969-10-03 CH CH1492669A patent/CH522567A/de not_active IP Right Cessation
- 1969-10-07 GB GB4913769A patent/GB1287614A/en not_active Expired
- 1969-10-10 BE BE740103D patent/BE740103A/xx unknown
- 1969-10-10 FR FR6934842A patent/FR2020441B1/fr not_active Expired
- 1969-10-10 NL NL6915398A patent/NL6915398A/xx unknown
- 1969-10-10 SE SE13980/69A patent/SE365492B/xx unknown
- 1969-10-11 JP JP44081035A patent/JPS4840799B1/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115188918A (zh) * | 2022-04-13 | 2022-10-14 | 武汉中原长江科技发展有限公司 | 一种添加活化剂的铬氧化物复合材料及其制备方法与应用 |
Also Published As
| Publication number | Publication date |
|---|---|
| SE365492B (enExample) | 1974-03-25 |
| DE1802469A1 (de) | 1971-10-28 |
| FR2020441B1 (enExample) | 1973-12-07 |
| JPS4840799B1 (enExample) | 1973-12-03 |
| CH522567A (de) | 1972-06-30 |
| FR2020441A1 (enExample) | 1970-07-10 |
| NL6915398A (enExample) | 1970-04-14 |
| BE740103A (enExample) | 1970-04-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1321858A (en) | Process for making green pellets from iron ore | |
| ES400760A1 (es) | Un procedimiento de preparacion, por fusion oxidante, de uncatalizador de sintesis del amoniaco. | |
| GB1287614A (en) | Process for the preparation of ferromagnetic chromium dioxide | |
| GB1351646A (en) | Production of methacrolein | |
| Askne et al. | Determination of strong acid in precipitation, lake-water and air-borne matter | |
| GB1433915A (en) | Alumina refractory composition | |
| GB1496890A (en) | Manufacture of magnetic materials which exhibit exchange anisotropy | |
| GB1125093A (en) | Production of magnetizable metallic particles suitable for the production of magnetic recording media | |
| GB1382733A (en) | Process for the production of acrylonitrile | |
| GB1316664A (en) | Process for the production of ferromagnetic chromium dioxide | |
| SE7907808L (sv) | Forbettrad, koboltmodifierad magnetisk jernoxid | |
| GB1247898A (en) | A process for the production of lead oxide | |
| GB1395704A (en) | Magnetic materials | |
| GB1345039A (en) | Manufacture of highly coercive chromium dioxide | |
| GB1458623A (en) | Production of acicular cobalt-containing ferri-magnetic iron oxides | |
| CA959506A (en) | System for the recovery of magnetisable raw materials, in particular all lumps of manganese from the deep sea | |
| AU465059B2 (en) | The recovery of nickel and/or cobalt from solutions containing salts thereof | |
| GB1265271A (enExample) | ||
| USD216634S (en) | Bottle carrying case | |
| GB1291064A (en) | Permanently magnetizable material | |
| GB1438736A (en) | Magnetic materials | |
| Vasilchikov et al. | IRON-MANGANESE NODULES FROM THE OCEAN FLOOR AS RAW MATERIAL FOR THE PRODUCTION OF COBALT, NICKEL, MANGANESE AND COPPER | |
| JPS52117218A (en) | Production of iron ore pellets | |
| CA996103A (en) | Process for coupling of water-insoluble 2,4-disubstituted phenols with diazotised o-nitroanilines | |
| USD217350S (en) | Data handling terminal or similar article |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |