ES411972A1 - Production of ammonium polyphosphates - Google Patents

Production of ammonium polyphosphates

Info

Publication number
ES411972A1
ES411972A1 ES411972A ES411972A ES411972A1 ES 411972 A1 ES411972 A1 ES 411972A1 ES 411972 A ES411972 A ES 411972A ES 411972 A ES411972 A ES 411972A ES 411972 A1 ES411972 A1 ES 411972A1
Authority
ES
Spain
Prior art keywords
phosphoric acid
ammonia
stream
ammonium polyphosphates
approximately
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.)
Expired
Application number
ES411972A
Other languages
Spanish (es)
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.)
APPA ET EV K
CHARBONNAG SOC CHIMIQUE DES
Original Assignee
APPA ET EV K
CHARBONNAG SOC CHIMIQUE DES
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 APPA ET EV K, CHARBONNAG SOC CHIMIQUE DES filed Critical APPA ET EV K
Publication of ES411972A1 publication Critical patent/ES411972A1/en
Expired legal-status Critical Current

Links

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
    • C01B25/26—Phosphates
    • C01B25/28—Ammonium phosphates
    • 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
    • C01B25/405—Polyphosphates of ammonium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Treating Waste Gases (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

Procedure and apparatus for the preparation of ammonium polyphosphates, by mixing two fluid streams, one of which consists of ammonia and the other of phosphoric acid; the process being characterized in that: the fluid phosphoric acid is at a temperature between 90 and 125ºC and has a concentration of P2O5 between 58 and 65%; the phosphoric acid stream is injected into the axis of the ammonia stream; the amount of ammonia used is in excess by approximately 15% with respect to the stoichiometry of the reaction that leads to obtaining monoammonium phosphates; the velocity of the gaseous ammonia stream at the height at which the injection of phosphoric acid is carried out is between 50 and 200 m/s; and the average velocity of the gas stream in the reaction chamber is approximately 170 m/s. (Machine-translation by Google Translate, not legally binding)
ES411972A 1972-02-23 1973-02-23 Production of ammonium polyphosphates Expired ES411972A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7206129A FR2172826B1 (en) 1972-02-23 1972-02-23

Publications (1)

Publication Number Publication Date
ES411972A1 true ES411972A1 (en) 1976-01-01

Family

ID=9093991

Family Applications (1)

Application Number Title Priority Date Filing Date
ES411972A Expired ES411972A1 (en) 1972-02-23 1973-02-23 Production of ammonium polyphosphates

Country Status (6)

Country Link
BE (1) BE795605A (en)
DE (1) DE2308716A1 (en)
ES (1) ES411972A1 (en)
FR (1) FR2172826B1 (en)
GB (1) GB1418074A (en)
IT (1) IT983475B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2208068A1 (en) * 2002-04-15 2004-06-01 Incro, S.A. Tubular reactor, used for obtaining ammoniacal salts employed in manufacture of fertilizers , has tubular body feeding tubing established in head or injection zone

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2528411A1 (en) * 1982-06-11 1983-12-16 Charbonnages Ste Chimique Appts. for mfg. ammonium phosphate(s) from ammonia and phosphoric acid - avoids blockages by locations of inlet pipes within unrestricted shell space

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1493803A (en) * 1965-08-18 1967-09-01 Swift & Co Manufacturing process of ammonium polyphosphate and fertilizer containing this product
LU62534A1 (en) * 1970-03-23 1971-08-17

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2208068A1 (en) * 2002-04-15 2004-06-01 Incro, S.A. Tubular reactor, used for obtaining ammoniacal salts employed in manufacture of fertilizers , has tubular body feeding tubing established in head or injection zone

Also Published As

Publication number Publication date
FR2172826B1 (en) 1974-09-13
FR2172826A1 (en) 1973-10-05
DE2308716A1 (en) 1973-08-30
IT983475B (en) 1974-10-31
GB1418074A (en) 1975-12-17
BE795605A (en) 1973-06-18

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