SU1616051A1 - METHOD OF OBTAINING IRON OXIDE (III) - Google Patents
METHOD OF OBTAINING IRON OXIDE (III)Info
- Publication number
- SU1616051A1 SU1616051A1 SU4625801/26A SU4625801A SU1616051A1 SU 1616051 A1 SU1616051 A1 SU 1616051A1 SU 4625801/26 A SU4625801/26 A SU 4625801/26A SU 4625801 A SU4625801 A SU 4625801A SU 1616051 A1 SU1616051 A1 SU 1616051A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- iii
- iron oxide
- solution
- heat treatment
- obtaining iron
- Prior art date
Links
Landscapes
- Compounds Of Iron (AREA)
Abstract
Способ получения оксида железа (III), используемого для производства ферритов, из солянокислого травильного раствора, включающий очистку его от кремния и последующую термообработку очищенного раствора с получением целевого продукта в присутствии кислородсодержащего газа, отличающийся тем, что, с целью повышения удельной поверхности продукта, степени его чистоты и упрощения процесса, очистку раствора осуществляют путем введения в него фторида или бифторида аммония в количестве 0,7 - 1,2 от стехиометрии в пересчете на SiO, а термообработку проводят при 350 - 700C.The method of producing iron (III) oxide used for the production of ferrites from pickling hydrochloric acid solution, including its purification from silicon and subsequent heat treatment of the purified solution to obtain the target product in the presence of oxygen-containing gas, characterized in its purity and simplification of the process, cleaning the solution is carried out by introducing into it fluoride or ammonium bifluoride in the amount of 0.7 - 1.2 from stoichiometry in terms of SiO, and heat treatment is about drive at 350 - 700C.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU4625801/26A SU1616051A1 (en) | 1988-12-26 | 1988-12-26 | METHOD OF OBTAINING IRON OXIDE (III) |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU4625801/26A SU1616051A1 (en) | 1988-12-26 | 1988-12-26 | METHOD OF OBTAINING IRON OXIDE (III) |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1616051A1 true SU1616051A1 (en) | 1999-06-10 |
Family
ID=60529856
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU4625801/26A SU1616051A1 (en) | 1988-12-26 | 1988-12-26 | METHOD OF OBTAINING IRON OXIDE (III) |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1616051A1 (en) |
-
1988
- 1988-12-26 SU SU4625801/26A patent/SU1616051A1/en active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
NO300263B1 (en) | Process for the preparation of 2-alkyl-3,4,6-trifluorobenzoic acid | |
DE69219118D1 (en) | CRYSTALLINE WATER-FREE LACTITOL AND METHOD FOR THE PRODUCTION THEREOF AND A USE THEREOF | |
FI920180A (en) | FOERFARANDE FOER FRAMSTAELLNING AV (6S) - OCH (6R) -TETRAHYDROFOLSYRA. | |
DE3680938D1 (en) | METHOD FOR PRODUCING SUBSTITUTED 3-CHINOLINE CARBONIC ACIDS. | |
ATE283864T1 (en) | A METHOD FOR PRODUCING THERAPEUTICALLY EFFECTIVE FRAGMENTS OF VON WILLEBRAND FACTOR | |
DE3260280D1 (en) | Process for the preparation of isosorbid-5-nitrate | |
DE69008492D1 (en) | Process for cleaning hydrofluoric acid. | |
DE3853145T2 (en) | Process for the preparation of xbaI restriction endonuclease and methylase. | |
DE69205713D1 (en) | Process for the preparation of purified alkanesulfonic acids. | |
SU1616051A1 (en) | METHOD OF OBTAINING IRON OXIDE (III) | |
DE3888648D1 (en) | Process for the preparation of HgiAI restriction endonuclease and methylase. | |
EP0353215A3 (en) | Purification of alkyl glyoxylate | |
ATE193009T1 (en) | METHOD FOR PRODUCING 2,6-DICHLORO-4-BROMOANILIDES | |
ATE81677T1 (en) | PROCESS FOR THE PRODUCTION OF HIGH-PURITY ZIRCONIA FROM LOW-SILICA FERROUS ZIRCONIUM-CONTAINING MATERIALS. | |
SU1161110A1 (en) | Method of treatment of peptic duodenal ulcer | |
SU1549915A1 (en) | Method of purifying wet-process phosphoric acid from fluorine | |
DE3780112T2 (en) | METHOD FOR PRODUCING PENICILLANIC ACID DERIVATIVES. | |
ES2006991A6 (en) | Manufacture of sugar by crystallisation by cooling | |
SU1051097A1 (en) | Process for preparing arylphosphonic acids dichloroanhydrides | |
SU1432007A1 (en) | Method of purifying vanadium oxotrichloride | |
SU1172946A1 (en) | Method of removing deposit off surface of profiled sapphire crystals | |
SU814858A1 (en) | Method of producing silicon dioxide | |
SU833454A1 (en) | Mica purification method | |
SU955659A1 (en) | WAY OF OBTAINING SILICON | |
JPS54143596A (en) | Manufacturing of wine |