FR2343696B3 - - Google Patents

Info

Publication number
FR2343696B3
FR2343696B3 FR7705316A FR7705316A FR2343696B3 FR 2343696 B3 FR2343696 B3 FR 2343696B3 FR 7705316 A FR7705316 A FR 7705316A FR 7705316 A FR7705316 A FR 7705316A FR 2343696 B3 FR2343696 B3 FR 2343696B3
Authority
FR
France
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
Application number
FR7705316A
Other languages
French (fr)
Other versions
FR2343696A1 (fr
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.)
NAT PETROCHEMICAL CY NPC
Original Assignee
NAT PETROCHEMICAL CY NPC
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
Priority claimed from US05/761,855 external-priority patent/US4108957A/en
Application filed by NAT PETROCHEMICAL CY NPC filed Critical NAT PETROCHEMICAL CY NPC
Publication of FR2343696A1 publication Critical patent/FR2343696A1/fr
Application granted granted Critical
Publication of FR2343696B3 publication Critical patent/FR2343696B3/fr
Granted legal-status Critical Current

Links

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
    • C01F11/46—Sulfates
    • 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
    • C01B25/185—Preparation neither from elemental phosphorus or phosphoric anhydride nor by reacting phosphate-containing material with an acid, e.g. by reacting phosphate-containing material with an ion-exchange resin or an acid salt used alone
    • 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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B60/00—Obtaining metals of atomic number 87 or higher, i.e. radioactive metals
    • C22B60/02—Obtaining thorium, uranium, or other actinides
    • C22B60/0204—Obtaining thorium, uranium, or other actinides obtaining uranium
    • C22B60/0217—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes
    • C22B60/0252—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes treatment or purification of solutions or of liquors or of slurries
    • C22B60/0278—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes treatment or purification of solutions or of liquors or of slurries by chemical methods
    • C22B60/0282—Solutions containing P ions, e.g. treatment of solutions resulting from the leaching of phosphate ores or recovery of uranium from wet-process phosphoric acid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
FR7705316A 1976-03-09 1977-02-23 Procede de preparation d'acide phosphorique a partir de minerais de phosphate Granted FR2343696A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US66533076A 1976-03-09 1976-03-09
US05/761,855 US4108957A (en) 1976-03-09 1977-01-24 Method for manufacture of phosphoric acid from phosphate rock

Publications (2)

Publication Number Publication Date
FR2343696A1 FR2343696A1 (fr) 1977-10-07
FR2343696B3 true FR2343696B3 (fi) 1979-10-19

Family

ID=27099180

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7705316A Granted FR2343696A1 (fr) 1976-03-09 1977-02-23 Procede de preparation d'acide phosphorique a partir de minerais de phosphate

Country Status (2)

Country Link
CH (1) CH603489A5 (fi)
FR (1) FR2343696A1 (fi)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2473063A1 (fr) * 1980-01-07 1981-07-10 Pechiney Ugine Kuhlmann Uran Procede ameliore de separation solide-liquide dans le cas de l'attaque sulfurique d'un minerai uranifere
EP0642467B1 (en) * 1992-05-27 1995-12-13 Purac Biochem B.V. Direct formation of alpha-calcium-sulfate-hemihydrate under atmospheric presssure
BE1013634A3 (fr) * 2000-08-03 2002-05-07 Ecophos Procede de production d'acide phosphorique.

Also Published As

Publication number Publication date
FR2343696A1 (fr) 1977-10-07
CH603489A5 (fi) 1978-08-15

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Legal Events

Date Code Title Description
ST Notification of lapse