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
  • C01B25/22—Preparation by reacting phosphate-containing material with an acid, e.g. wet process
  • C01B25/222—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen
• • 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
  • C01B25/22—Preparation by reacting phosphate-containing material with an acid, e.g. wet process
  • C01B25/2208—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with an acid or a mixture of acids other than sulfuric acid
• • 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
  • C01B25/237—Selective elimination of impurities
  • C01B25/2372—Anionic impurities, e.g. silica or boron compounds
  • C01B25/2375—Fluoride or fluosilicate anion

Landscapes

• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Inorganic Chemistry (AREA)
• Silicates, Zeolites, And Molecular Sieves (AREA)
• Extraction Or Liquid Replacement (AREA)
• Silicon Compounds (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=5843984

Family Applications (1)

Country Status (5)

Families Citing this family (1)

• 1972
  • 1972-05-04 DE DE19722221745 patent/DE2221745C3/en not_active Expired
• 1973
  • 1973-04-19 NL NL7305595A patent/NL7305595A/xx not_active Application Discontinuation
  • 1973-04-30 CA CA169,888A patent/CA1001824A/en not_active Expired
  • 1973-05-03 GB GB2107973A patent/GB1396217A/en not_active Expired
  • 1973-05-04 FR FR7316190A patent/FR2183277B1/fr not_active Expired

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