FR2249031A1 - Processing rock phosphate with plasma jets - to form hydrogen fluoride, phosphorus pentoxide, polyphosphates and nitric acid - Google Patents

Processing rock phosphate with plasma jets - to form hydrogen fluoride, phosphorus pentoxide, polyphosphates and nitric acid

Info

Publication number
FR2249031A1
FR2249031A1 FR7431028A FR7431028A FR2249031A1 FR 2249031 A1 FR2249031 A1 FR 2249031A1 FR 7431028 A FR7431028 A FR 7431028A FR 7431028 A FR7431028 A FR 7431028A FR 2249031 A1 FR2249031 A1 FR 2249031A1
Authority
FR
France
Prior art keywords
phosphate
nox
rock phosphate
polyphosphates
ave
Prior art date
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.)
Granted
Application number
FR7431028A
Other languages
English (en)
French (fr)
Other versions
FR2249031B1 (it
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.)
INST TEPLO I MASSOOBMENA AKADE
Original Assignee
INST TEPLO I MASSOOBMENA AKADE
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 SU731965967A external-priority patent/SU560407A1/ru
Priority claimed from SU741990652A external-priority patent/SU710911A1/ru
Application filed by INST TEPLO I MASSOOBMENA AKADE filed Critical INST TEPLO I MASSOOBMENA AKADE
Publication of FR2249031A1 publication Critical patent/FR2249031A1/fr
Application granted granted Critical
Publication of FR2249031B1 publication Critical patent/FR2249031B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B13/00—Fertilisers produced by pyrogenic processes from phosphatic materials
    • C05B13/06—Alkali and alkaline earth meta- or polyphosphate fertilisers
    • 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
    • C01B25/12—Oxides of phosphorus
    • 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
    • C01B25/38—Condensed phosphates
    • C01B25/40—Polyphosphates
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Treating Waste Gases (AREA)
FR7431028A 1973-10-29 1974-09-13 Processing rock phosphate with plasma jets - to form hydrogen fluoride, phosphorus pentoxide, polyphosphates and nitric acid Granted FR2249031A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SU731965967A SU560407A1 (ru) 1973-10-29 1973-10-29 Способ получени фосфатов кальци
SU741990652A SU710911A1 (ru) 1974-02-11 1974-02-11 Способ получени фтористого водорода

Publications (2)

Publication Number Publication Date
FR2249031A1 true FR2249031A1 (en) 1975-05-23
FR2249031B1 FR2249031B1 (it) 1976-10-22

Family

ID=26665496

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7431028A Granted FR2249031A1 (en) 1973-10-29 1974-09-13 Processing rock phosphate with plasma jets - to form hydrogen fluoride, phosphorus pentoxide, polyphosphates and nitric acid

Country Status (3)

Country Link
DE (1) DE2446844C3 (it)
FR (1) FR2249031A1 (it)
IT (1) IT1034071B (it)

Also Published As

Publication number Publication date
DE2446844B2 (de) 1979-08-02
DE2446844C3 (de) 1980-04-03
FR2249031B1 (it) 1976-10-22
IT1034071B (it) 1979-09-10
DE2446844A1 (de) 1975-05-07

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Legal Events

Date Code Title Description
ST Notification of lapse