DE69108773D1 - Verfahren zur Herstellung von Alkalimetall-Hypophosphiten. - Google Patents

Verfahren zur Herstellung von Alkalimetall-Hypophosphiten.

Info

Publication number
DE69108773D1
DE69108773D1 DE69108773T DE69108773T DE69108773D1 DE 69108773 D1 DE69108773 D1 DE 69108773D1 DE 69108773 T DE69108773 T DE 69108773T DE 69108773 T DE69108773 T DE 69108773T DE 69108773 D1 DE69108773 D1 DE 69108773D1
Authority
DE
Germany
Prior art keywords
alkali metal
hypophosphite
solution
compartment
concentrating
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 - Fee Related
Application number
DE69108773T
Other languages
English (en)
Other versions
DE69108773T2 (de
Inventor
Yoshihiro Takikawa
Masaoki Oda
Takashi Takeuti
Katsutoshi Shibata
Atsushi Kanayama
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.)
PHOSPHORUS CHEM IND
Original Assignee
PHOSPHORUS CHEM IND
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 PHOSPHORUS CHEM IND filed Critical PHOSPHORUS CHEM IND
Application granted granted Critical
Publication of DE69108773D1 publication Critical patent/DE69108773D1/de
Publication of DE69108773T2 publication Critical patent/DE69108773T2/de
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
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/165—Hypophosphorous acid; Salts thereof
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/163—Phosphorous acid; Salts thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Chemically Coating (AREA)
DE69108773T 1990-05-30 1991-05-28 Verfahren zur Herstellung von Alkalimetall-Hypophosphiten. Expired - Fee Related DE69108773T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2140753A JPH07110764B2 (ja) 1990-05-30 1990-05-30 アルカリ金属次亜リン酸塩の製造方法

Publications (2)

Publication Number Publication Date
DE69108773D1 true DE69108773D1 (de) 1995-05-18
DE69108773T2 DE69108773T2 (de) 1995-08-24

Family

ID=15275936

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69108773T Expired - Fee Related DE69108773T2 (de) 1990-05-30 1991-05-28 Verfahren zur Herstellung von Alkalimetall-Hypophosphiten.

Country Status (8)

Country Link
US (1) US5225052A (de)
EP (1) EP0459751B1 (de)
JP (1) JPH07110764B2 (de)
KR (1) KR950014210B1 (de)
CN (1) CN1030185C (de)
AT (1) ATE121054T1 (de)
CA (1) CA2043351C (de)
DE (1) DE69108773T2 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5419821A (en) * 1993-06-04 1995-05-30 Vaughan; Daniel J. Process and equipment for reforming and maintaining electroless metal baths
US5431792A (en) * 1993-12-20 1995-07-11 Occidental Chemical Corporation Method of making hypophosphorous acid
US5522972A (en) * 1994-07-19 1996-06-04 Learonal, Inc. Nickel hypophosphite manufacture
US5578182A (en) * 1994-09-16 1996-11-26 Learonal Inc. Electrolytic production of hypophosphorous acid
US5480517A (en) * 1994-09-16 1996-01-02 Learonal Inc. Electrolytic production of hypophosphorous acid
US8883901B2 (en) 2009-08-24 2014-11-11 Solvay (China) Co., Ltd. Process for stabilizing hypophosphite salts
US8940820B2 (en) 2009-10-23 2015-01-27 Rhodia (China) Co., Ltd. Process for stabilizing hypophosphite
CN101817513B (zh) * 2010-04-30 2012-06-27 四川川恒化工股份有限公司 磷酸净化装置
JP5992601B2 (ja) * 2012-04-06 2016-09-14 ローディア オペレーションズ 次亜リン酸塩の製造方法
GB201807302D0 (en) * 2018-05-03 2018-06-20 Addivant Switzerland Gmbh Antidegradant blend
CN109589793B (zh) * 2018-12-28 2024-01-26 浙江蓝极膜技术有限公司 一种生产次磷酸的双极膜装置
CN113460985B (zh) * 2021-07-22 2023-08-08 天门安安化工科技有限公司 一种可溶性次磷酸盐的连续生产方法及系统

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2125587C3 (de) * 1971-05-24 1974-08-15 Knapsack Ag, 5033 Huerth-Knapsack Verfahren zur Herstellung von Hypophosphiten
US4379132A (en) * 1982-08-05 1983-04-05 Fmc Corporation Process for sodium hypophosphite
JPS5992908A (ja) * 1982-11-18 1984-05-29 Nippon Chem Ind Co Ltd:The 次亜りん酸ソ−ダの精製法
US4521391A (en) * 1984-01-13 1985-06-04 Stauffer Chemical Company Method to improve yields of sodium hypophosphite
JP2726657B2 (ja) * 1985-05-03 1998-03-11 ザ・グレーバー・カンパニー 混合塩からの混合酸の回収

Also Published As

Publication number Publication date
EP0459751A1 (de) 1991-12-04
CN1056851A (zh) 1991-12-11
US5225052A (en) 1993-07-06
EP0459751B1 (de) 1995-04-12
CA2043351C (en) 1995-03-28
DE69108773T2 (de) 1995-08-24
ATE121054T1 (de) 1995-04-15
JPH0437601A (ja) 1992-02-07
KR950014210B1 (ko) 1995-11-23
JPH07110764B2 (ja) 1995-11-29
CN1030185C (zh) 1995-11-01
KR910019902A (ko) 1991-12-19

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee