IL61303A0 - Process for the preparation of a purified, oxidation-resistant inorganic acid and acid so obtained - Google Patents

Process for the preparation of a purified, oxidation-resistant inorganic acid and acid so obtained

Info

Publication number
IL61303A0
IL61303A0 IL61303A IL6130380A IL61303A0 IL 61303 A0 IL61303 A0 IL 61303A0 IL 61303 A IL61303 A IL 61303A IL 6130380 A IL6130380 A IL 6130380A IL 61303 A0 IL61303 A0 IL 61303A0
Authority
IL
Israel
Prior art keywords
acid
purified
oxidation
preparation
resistant inorganic
Prior art date
Application number
IL61303A
Other versions
IL61303A (en
Original Assignee
Riedel De Haen Ag
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 Riedel De Haen Ag filed Critical Riedel De Haen Ag
Publication of IL61303A0 publication Critical patent/IL61303A0/en
Publication of IL61303A publication Critical patent/IL61303A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B7/00—Halogens; Halogen acids
    • C01B7/19—Fluorine; Hydrogen fluoride
    • C01B7/191—Hydrogen fluoride
    • C01B7/195—Separation; Purification
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C01B17/90—Separation; Purification
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C01B17/90—Separation; Purification
    • C01B17/905—Removal of organic 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
    • C01B25/18—Phosphoric acid
    • C01B25/234—Purification; Stabilisation; Concentration
    • C01B25/235—Clarification; Stabilisation to prevent post-precipitation of dissolved impurities

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
IL61303A 1979-10-20 1980-10-19 Process for the preparation of a purified,oxidation-resistant inorganic acid IL61303A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792942545 DE2942545A1 (en) 1979-10-20 1979-10-20 METHOD FOR PRODUCING A CLEANED OXIDATION-RESISTANT INORGANIC ACID AND AFTER-OBTAINED ACID

Publications (2)

Publication Number Publication Date
IL61303A0 true IL61303A0 (en) 1980-12-31
IL61303A IL61303A (en) 1984-02-29

Family

ID=6084024

Family Applications (1)

Application Number Title Priority Date Filing Date
IL61303A IL61303A (en) 1979-10-20 1980-10-19 Process for the preparation of a purified,oxidation-resistant inorganic acid

Country Status (4)

Country Link
EP (1) EP0027607B1 (en)
DE (2) DE2942545A1 (en)
ES (1) ES495923A0 (en)
IL (1) IL61303A (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3131847A1 (en) * 1981-08-12 1983-03-17 Hoechst Ag, 6000 Frankfurt METHOD FOR REMOVING ORGANIC IMPURITIES FROM PHOSPHORIC ACID
US4457899A (en) * 1981-11-23 1984-07-03 Mobil Oil Corporation Process for removal of residual organic matter from purified phosphoric acid
US4503022A (en) * 1982-08-23 1985-03-05 International Minerals & Chemical Corp. Process for oxidation of wet process phosphoric acid
DE3623134A1 (en) * 1986-07-09 1988-01-21 Hoechst Ag METHOD FOR THE OXIDATION OF HYDROGEN SULFUR CONTAINED IN MINERAL ACIDS
US4929435A (en) * 1987-02-12 1990-05-29 Allied-Signal Inc. Manufacture of high purity low arsenic anhydrous hydrogen fluoride
US4756899A (en) * 1987-02-12 1988-07-12 Allied-Signal Inc. Manufacture of high purity low arsenic anhydrous hydrogen fluoride
JP2535882B2 (en) * 1987-03-09 1996-09-18 東ソー株式会社 Method for removing dissolved organic matter in purified phosphoric acid
SE464299B (en) * 1988-11-16 1991-04-08 Boliden Contech Ab PROCEDURE FOR DETERMINING Sulfuric Acid Produced According to the Contact Method
DE3926112A1 (en) * 1989-08-08 1991-02-14 Hoechst Ag METHOD FOR REPROCESSING THE SULFURIC ACID FROM PHOSPHORUS CLEANING
US4954330A (en) * 1989-11-30 1990-09-04 E. I. Dupont De Nemours And Company Process for purifying hydrogen fluoride
FR2687656B1 (en) * 1992-02-20 1994-06-17 Inst Francais Du Petrole PROCESS FOR THE REMOVAL OF ORGANIC MATERIALS CONTAINED IN AN IMPURE SULFURIC ACID. USE OF THE RESULTING ACID AND TREATMENT OF THE FORMED GASEOUS EFFLUENT.
DE19732190C1 (en) * 1997-07-26 1998-11-12 Deutsch Zentr Luft & Raumfahrt Working up of waste mineral acid to decompose organic impurities
FR2772014B1 (en) * 1997-12-08 2000-01-07 Atochem Elf Sa GENERATION OF BORON TRIFLUORIDE AND SULFURIC ACID FROM BORON TRIFLUORIDE HYDRATE

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE557062A (en) *
DE593370C (en) * 1931-11-05 1934-02-24 Chem Fab Budenheim Akt Ges Purification of the raw phosphoric acid obtained by the acid digestion of rock phosphates
DE693370C (en) * 1936-02-05 1940-07-06 Hans Schmalfeldt Dipl Ing Process for the production of synthesis gas for the pressureless gasoline synthesis
DE884358C (en) * 1951-09-20 1953-07-27 Gerardo Collardin Process for the purification of technical phosphoric acid
JPS5297394A (en) * 1976-02-13 1977-08-16 Toyo Soda Mfg Co Ltd Removal of organic matter in phosphoric acid
DE2616768C3 (en) * 1976-04-15 1978-12-07 Hoechst Ag, 6000 Frankfurt Process for the regeneration of waste sulfuric acid
DE2700450A1 (en) * 1977-01-07 1978-07-13 Isega Ind Studien Removing odorous sulphur cpds. from waste gases or water - esp. in cellulose mfr. or in petrochemistry
DE2910711A1 (en) * 1979-03-19 1980-10-02 Hoechst Ag METHOD FOR REMOVING ORGANIC IMPURITIES FROM PHOSPHORIC ACID

Also Published As

Publication number Publication date
EP0027607B1 (en) 1983-04-13
EP0027607A1 (en) 1981-04-29
ES8105161A1 (en) 1981-06-16
ES495923A0 (en) 1981-06-16
DE2942545A1 (en) 1981-06-04
DE3062769D1 (en) 1983-05-19
IL61303A (en) 1984-02-29

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