Classifications

• • C—CHEMISTRY; METALLURGY
  • C01—INORGANIC CHEMISTRY
  • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
  • C01F11/00—Compounds of calcium, strontium, or barium
  • C01F11/20—Halides
  • C01F11/22—Fluorides
• • 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
  • C01B25/223—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 only one form of calcium sulfate being formed
  • C01B25/225—Dihydrate process
• • 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
  • C01B25/26—Phosphates
  • C01B25/32—Phosphates of magnesium, calcium, strontium, or barium
  • C01B25/328—Defluorination during or after the preparation
• • C—CHEMISTRY; METALLURGY
  • C05—FERTILISERS; MANUFACTURE THEREOF
  • C05B—PHOSPHATIC FERTILISERS
  • C05B11/00—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes
  • C05B11/04—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes using mineral acid
  • C05B11/10—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes using mineral acid using orthophosphoric acid

Landscapes

• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Inorganic Chemistry (AREA)
• Life Sciences & Earth Sciences (AREA)
• Geology (AREA)
• Fertilizers (AREA)
• Removal Of Specific Substances (AREA)
• Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
• Silicon Compounds (AREA)
• Crystals, And After-Treatments Of Crystals (AREA)

Applications Claiming Priority (1)

Publications (2)

Family

ID=25458980

Family Applications (1)

Country Status (13)

Cited By (5)

Family Cites Families (3)

• 1979
  • 1979-05-04 CA CA326,914A patent/CA1115483A/en not_active Expired
  • 1979-05-08 ZA ZA792199A patent/ZA792199B/en unknown
  • 1979-05-14 ES ES480523A patent/ES480523A1/en not_active Expired
  • 1979-05-14 FR FR7912214A patent/FR2432477A1/en active Granted
  • 1979-05-16 IL IL57301A patent/IL57301A/en unknown
  • 1979-05-17 BR BR7903045A patent/BR7903045A/en unknown
  • 1979-05-17 BE BE0/195218A patent/BE876325A/en not_active IP Right Cessation
  • 1979-05-17 GB GB7917161A patent/GB2026996B/en not_active Expired
  • 1979-05-18 MA MA18633A patent/MA18439A1/en unknown
  • 1979-05-19 IN IN522/CAL/79A patent/IN150442B/en unknown
  • 1979-05-21 JP JP54062556A patent/JPS5827207B2/en not_active Expired
  • 1979-06-01 IT IT12625/79A patent/IT1194869B/en active
  • 1979-07-30 DE DE19792930825 patent/DE2930825A1/en active Granted

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