FR2636937A1 - PROCESS FOR THE MANUFACTURE OF HIGH PURITY POTASSIUM PERSULFATE - Google Patents

PROCESS FOR THE MANUFACTURE OF HIGH PURITY POTASSIUM PERSULFATE

Info

Publication number
FR2636937A1
FR2636937A1 FR8904183A FR8904183A FR2636937A1 FR 2636937 A1 FR2636937 A1 FR 2636937A1 FR 8904183 A FR8904183 A FR 8904183A FR 8904183 A FR8904183 A FR 8904183A FR 2636937 A1 FR2636937 A1 FR 2636937A1
Authority
FR
France
Prior art keywords
potassium
potassium persulfate
high purity
manufacture
persulfate
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.)
Granted
Application number
FR8904183A
Other languages
French (fr)
Other versions
FR2636937B1 (en
Inventor
Satoru Watanabe
Osami Ohura
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.)
TOKAI ELECTRO CHEMICAL CO
Tokai Denka Kogyo KK
Original Assignee
TOKAI ELECTRO CHEMICAL CO
Tokai Denka Kogyo KK
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 TOKAI ELECTRO CHEMICAL CO, Tokai Denka Kogyo KK filed Critical TOKAI ELECTRO CHEMICAL CO
Publication of FR2636937A1 publication Critical patent/FR2636937A1/en
Application granted granted Critical
Publication of FR2636937B1 publication Critical patent/FR2636937B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B15/00—Peroxides; Peroxyhydrates; Peroxyacids or salts thereof; Superoxides; Ozonides
    • C01B15/055—Peroxyhydrates; Peroxyacids or salts thereof
    • C01B15/06—Peroxyhydrates; Peroxyacids or salts thereof containing sulfur
    • C01B15/08—Peroxysulfates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Fertilizers (AREA)

Abstract

L'invention a pour objet la fabrication d'un persulfate de potassium de haute pureté d'une teneur réduite en sulfate de potassium par la réaction de persulfate d'ammonium et d'hydroxyde de potassium. Selon l'invention, on ajoute au moins une partie de l'hydroxyde de potassium utilisé comme matière première à au moins une partie de la liqueur mère après séparation des cristaux de persulfate de potassium obtenus par ladite réaction pour précipiter et séparer le sulfate de potassium formé par la décomposition du persulfate de potassium et on recycle la liqueur mère.The invention relates to the production of a high purity potassium persulfate with a reduced content of potassium sulfate by the reaction of ammonium persulfate and potassium hydroxide. According to the invention, at least part of the potassium hydroxide used as raw material is added to at least part of the mother liquor after separation of the potassium persulfate crystals obtained by said reaction to precipitate and separate the potassium sulfate. formed by the decomposition of potassium persulfate and the mother liquor is recycled.

FR8904183A 1988-09-28 1989-03-30 PROCESS FOR THE MANUFACTURE OF HIGH PURITY POTASSIUM PERSULFATE Expired - Fee Related FR2636937B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24096888A JPH0292811A (en) 1988-09-28 1988-09-28 Production of high-purity potassium persulfate

Publications (2)

Publication Number Publication Date
FR2636937A1 true FR2636937A1 (en) 1990-03-30
FR2636937B1 FR2636937B1 (en) 1991-01-11

Family

ID=17067333

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8904183A Expired - Fee Related FR2636937B1 (en) 1988-09-28 1989-03-30 PROCESS FOR THE MANUFACTURE OF HIGH PURITY POTASSIUM PERSULFATE

Country Status (6)

Country Link
JP (1) JPH0292811A (en)
BR (1) BR8904899A (en)
DE (1) DE3908127C2 (en)
ES (1) ES2019160A6 (en)
FR (1) FR2636937B1 (en)
GB (1) GB2224726B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111807386B (en) * 2020-07-24 2023-04-07 华融化学股份有限公司 Preparation method of reagent-grade potassium sulfate
CN116119623B (en) * 2023-01-29 2023-08-15 西陇科学股份有限公司 Production method of environment-friendly high-purity potassium persulfate

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2145321B2 (en) * 1970-09-10 1973-02-22 FMC Corp , New York, NY(VS'*\ PROCESS FOR THE PRODUCTION OF POTASSIUM PEROXYDISULFATE
US3954952A (en) * 1975-03-24 1976-05-04 Fmc Corporation Continuous chemical process for the manufacture of sodium and potassium peroxydisulfate
EP0081063A1 (en) * 1981-11-10 1983-06-15 FMC Corporation Method for producing sodium persulfate

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899272A (en) * 1957-11-04 1959-08-11 Production of persulfates

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2145321B2 (en) * 1970-09-10 1973-02-22 FMC Corp , New York, NY(VS'*\ PROCESS FOR THE PRODUCTION OF POTASSIUM PEROXYDISULFATE
US3954952A (en) * 1975-03-24 1976-05-04 Fmc Corporation Continuous chemical process for the manufacture of sodium and potassium peroxydisulfate
EP0081063A1 (en) * 1981-11-10 1983-06-15 FMC Corporation Method for producing sodium persulfate

Also Published As

Publication number Publication date
JPH0292811A (en) 1990-04-03
JPH0512282B2 (en) 1993-02-17
ES2019160A6 (en) 1991-06-01
GB2224726B (en) 1992-01-22
BR8904899A (en) 1990-05-08
GB8905758D0 (en) 1989-04-26
DE3908127A1 (en) 1990-03-29
DE3908127C2 (en) 1997-09-25
FR2636937B1 (en) 1991-01-11
GB2224726A (en) 1990-05-16

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Legal Events

Date Code Title Description
ST Notification of lapse