JPS5575925A - Production of potassium ferrate - Google Patents

Production of potassium ferrate

Info

Publication number
JPS5575925A
JPS5575925A JP14910078A JP14910078A JPS5575925A JP S5575925 A JPS5575925 A JP S5575925A JP 14910078 A JP14910078 A JP 14910078A JP 14910078 A JP14910078 A JP 14910078A JP S5575925 A JPS5575925 A JP S5575925A
Authority
JP
Japan
Prior art keywords
soln
koh
feo
iron hydroxide
reaction
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
JP14910078A
Other languages
Japanese (ja)
Inventor
Toshihiko Morishita
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.)
Nippon Chemical Industrial Co Ltd
Original Assignee
Nippon Chemical 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 Nippon Chemical Industrial Co Ltd filed Critical Nippon Chemical Industrial Co Ltd
Priority to JP14910078A priority Critical patent/JPS5575925A/en
Publication of JPS5575925A publication Critical patent/JPS5575925A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To cheaply produce K2FeO4 by reacting iron hydroxide and an aq. KOH soln. of potassium hypochlorite.
CONSTITUTION: Cl is blown into an aq. KOH soln. at 30°C or below, and a by- product KCl is removed as much as possible by filtration to prepare a high concn. aq. KOC° soln. contg. about 5wt% or more of free KOH. Next iron hydroxide obtd. by neutralizing an aq. ferrous or ferric salt soln. with alkali is washed and repulped in an aq. KOH soln., and the resulting slurry is reacted with the aq. KOCl soln. in a reactor so that about 5W35wt% of free KOH is present at the end of the reaction. After the reaction the slurried reaction product is concentrated and filtered. The filtrate is recycled as raw material, and the solid component is leached with an aq. KOH soln. to dissolve K2FeO4 and a by-product KCl, which are separated from unreacted iron hydroxide. By adding flaky KOH to this soln. or concentrating the soln. the K2FeO4 is deposited and separated by filtration.
COPYRIGHT: (C)1980,JPO&Japio
JP14910078A 1978-12-04 1978-12-04 Production of potassium ferrate Pending JPS5575925A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14910078A JPS5575925A (en) 1978-12-04 1978-12-04 Production of potassium ferrate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14910078A JPS5575925A (en) 1978-12-04 1978-12-04 Production of potassium ferrate

Publications (1)

Publication Number Publication Date
JPS5575925A true JPS5575925A (en) 1980-06-07

Family

ID=15467689

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14910078A Pending JPS5575925A (en) 1978-12-04 1978-12-04 Production of potassium ferrate

Country Status (1)

Country Link
JP (1) JPS5575925A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0059622A1 (en) * 1981-02-26 1982-09-08 John Alfred Thompson Alkali metal ferrates
FR2635318A1 (en) * 1988-08-09 1990-02-16 Sarval PROCESS FOR THE PREPARATION OF ALKALINE OR ALKALINE EARTH FERRATES BY SOLID WAY
CN1307108C (en) * 2005-07-29 2007-03-28 大庆石油学院 Method for improving oxidation activity of potassium ferrate
US7476324B2 (en) 2000-07-14 2009-01-13 Ferrate Treatment Technologies, Llc Methods of synthesizing a ferrate oxidant and its use in ballast water
CN104211157A (en) * 2014-09-25 2014-12-17 景德镇陶瓷学院 Method for preparing sustained release potassium ferrate clathrate compound for water treatment
CN110143624A (en) * 2019-05-31 2019-08-20 中国石油大学(华东) A kind of support type stabilizes the preparation method of potassium ferrate

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ENCYCLOPEDIA OF CHEMICAL REACTIONS=1957US *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0059622A1 (en) * 1981-02-26 1982-09-08 John Alfred Thompson Alkali metal ferrates
FR2635318A1 (en) * 1988-08-09 1990-02-16 Sarval PROCESS FOR THE PREPARATION OF ALKALINE OR ALKALINE EARTH FERRATES BY SOLID WAY
US7476324B2 (en) 2000-07-14 2009-01-13 Ferrate Treatment Technologies, Llc Methods of synthesizing a ferrate oxidant and its use in ballast water
US7820025B2 (en) 2000-07-14 2010-10-26 Ferrate Treatment Technologies, Llc Methods of synthesizing an oxidant and applications thereof
CN1307108C (en) * 2005-07-29 2007-03-28 大庆石油学院 Method for improving oxidation activity of potassium ferrate
CN104211157A (en) * 2014-09-25 2014-12-17 景德镇陶瓷学院 Method for preparing sustained release potassium ferrate clathrate compound for water treatment
CN110143624A (en) * 2019-05-31 2019-08-20 中国石油大学(华东) A kind of support type stabilizes the preparation method of potassium ferrate

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