ZA881569B - Method for removing organic materials dissolved in purified phosphoric acid - Google Patents

Method for removing organic materials dissolved in purified phosphoric acid

Info

Publication number
ZA881569B
ZA881569B ZA881569A ZA881569A ZA881569B ZA 881569 B ZA881569 B ZA 881569B ZA 881569 A ZA881569 A ZA 881569A ZA 881569 A ZA881569 A ZA 881569A ZA 881569 B ZA881569 B ZA 881569B
Authority
ZA
South Africa
Prior art keywords
phosphoric acid
organic materials
removing organic
materials dissolved
purified phosphoric
Prior art date
Application number
ZA881569A
Other languages
English (en)
Inventor
Nakatani Masaki
Original Assignee
Tosho Corporation
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 Tosho Corporation filed Critical Tosho Corporation
Publication of ZA881569B publication Critical patent/ZA881569B/xx

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
    • C01B25/18—Phosphoric acid
    • C01B25/234—Purification; Stabilisation; Concentration
    • C01B25/235—Clarification; Stabilisation to prevent post-precipitation of dissolved impurities
    • 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
    • C01B25/46—Preparation involving solvent-solvent extraction
    • C01B25/461—Preparation involving solvent-solvent extraction the phosphoric acid present in the medium obtained after reaction being first extracted from the liquid phase formed or separated then re-extracted as free acid by using water or as a phosphate by using a basic compound
    • 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
    • C01B25/46—Preparation involving solvent-solvent extraction
    • C01B25/461—Preparation involving solvent-solvent extraction the phosphoric acid present in the medium obtained after reaction being first extracted from the liquid phase formed or separated then re-extracted as free acid by using water or as a phosphate by using a basic compound
    • C01B25/462—Preparation involving solvent-solvent extraction the phosphoric acid present in the medium obtained after reaction being first extracted from the liquid phase formed or separated then re-extracted as free acid by using water or as a phosphate by using a basic compound the extracting agent being alcohol or a mixture of alcohols

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Removal Of Specific Substances (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Treatment Of Sludge (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
ZA881569A 1987-03-09 1988-03-04 Method for removing organic materials dissolved in purified phosphoric acid ZA881569B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62052142A JP2535882B2 (ja) 1987-03-09 1987-03-09 精製リン酸中の溶解有機物の除去法

Publications (1)

Publication Number Publication Date
ZA881569B true ZA881569B (en) 1988-08-29

Family

ID=12906621

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA881569A ZA881569B (en) 1987-03-09 1988-03-04 Method for removing organic materials dissolved in purified phosphoric acid

Country Status (9)

Country Link
US (1) US4820501A (ja)
EP (1) EP0282003B1 (ja)
JP (1) JP2535882B2 (ja)
CN (1) CN1015253B (ja)
BR (1) BR8801016A (ja)
DE (1) DE3862130D1 (ja)
MA (1) MA21205A1 (ja)
MX (1) MX167401B (ja)
ZA (1) ZA881569B (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0898955B1 (de) 1997-08-09 2006-06-14 MERCK PATENT GmbH Sonnenschutzmittel mit Ultraspektralschutz
CN108275669B (zh) * 2018-01-16 2021-12-03 湖北兴福电子材料有限公司 一种电子级磷酸脱除刺激性气味的方法
CN113735083B (zh) * 2021-08-18 2023-11-17 武汉工程大学 一种常温氧化法消除湿法磷酸萃取反应泡沫的方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US643883A (en) * 1899-07-19 1900-02-20 Sterling Supply And Mfg Company Fare-register.
JPS5297394A (en) * 1976-02-13 1977-08-16 Toyo Soda Mfg Co Ltd Removal of organic matter in phosphoric acid
DE2813755C3 (de) * 1978-03-30 1982-03-25 Kazachskij naučno-issledovatel'skij proektnyj institut fosfornoj promyšlennosti KazNiiGiprofosfor, Čimkent Verfahren zur Reinigung der Orthophosphorsäure
DE2942545A1 (de) * 1979-10-20 1981-06-04 Riedel-De Haen Ag, 3016 Seelze Verfahren zur herstellung einer gereinigten oxidationsbestaendigen anorganischen saeure und danach erhaltene saeure
FR2470090B1 (fr) * 1979-11-20 1986-04-04 Rhone Poulenc Chim Base Procede de purification d'un acide phosphorique de voie humide
DE3022662A1 (de) * 1980-06-18 1982-01-21 Hoechst Ag, 6000 Frankfurt Verfahren zur reduktion dreiwertigen eisens in nassverfahrensphosphorsaeure
DE3131847A1 (de) * 1981-08-12 1983-03-17 Hoechst Ag, 6000 Frankfurt Verfahren zur entfernung von organischen verunreinigungen aus phosphorsaeure
CA1198575A (en) * 1981-11-23 1985-12-31 Richard G. Grotyohann Process for removal of residual organic matter and color from purified phosphoric acid
JPS58125607A (ja) * 1982-01-18 1983-07-26 Toyo Soda Mfg Co Ltd 湿式リン酸から有機物を除く方法
US4643883A (en) * 1986-01-22 1987-02-17 International Minerals & Chemical Corp. Method of decolorizing wet process phosphoric acid

Also Published As

Publication number Publication date
EP0282003B1 (en) 1991-03-27
MX167401B (es) 1993-03-22
JPS63222009A (ja) 1988-09-14
JP2535882B2 (ja) 1996-09-18
DE3862130D1 (de) 1991-05-02
US4820501A (en) 1989-04-11
EP0282003A3 (en) 1989-03-29
MA21205A1 (fr) 1988-10-01
CN88101139A (zh) 1988-09-21
BR8801016A (pt) 1988-10-11
CN1015253B (zh) 1992-01-01
EP0282003A2 (en) 1988-09-14

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