ES2087379T3 - Procedimiento para la preparacion de polifosfato de amonio. - Google Patents

Procedimiento para la preparacion de polifosfato de amonio.

Info

Publication number
ES2087379T3
ES2087379T3 ES92115470T ES92115470T ES2087379T3 ES 2087379 T3 ES2087379 T3 ES 2087379T3 ES 92115470 T ES92115470 T ES 92115470T ES 92115470 T ES92115470 T ES 92115470T ES 2087379 T3 ES2087379 T3 ES 2087379T3
Authority
ES
Spain
Prior art keywords
dish dryer
ammonic
gas containing
dish
containing ammonia
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 - Lifetime
Application number
ES92115470T
Other languages
English (en)
Inventor
Thomas Dr Staffel
Wolfgang Dr Becker
Herbert Neumann
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.)
Hoechst AG
Original Assignee
Hoechst AG
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 Hoechst AG filed Critical Hoechst AG
Application granted granted Critical
Publication of ES2087379T3 publication Critical patent/ES2087379T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C01B25/38—Condensed phosphates
    • C01B25/40—Polyphosphates
    • C01B25/405—Polyphosphates of ammonium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Fertilizers (AREA)
  • Fireproofing Substances (AREA)
  • Cookers (AREA)

Abstract

PARA LA OBTENCION DE UN POLIFOSFATO AMONICO EN FORMA DE CADENA, ESENCIALMENTE INSOLUBLE EN AGUA, SE HACEN REACCIONAR EN UN PRIMER PASO, UN ORTOFOSFATO AMONICO Y UN PENTOXIDO AMONICO, EN PRESENCIA DE AMONIACO EN FORMA GASEOSA, EN UN REACTOR PROVISTO EN SU INTERIOR DE EQUIPOS MEZCLADORES, AMASADORES Y TRITURADORES, HASTA QUE EL MOTOR DE ACCIONAMIENTO DEL REACTOR PRESENTE EN SU DIAGRAMA DE CONSUMO DE CORRIENTE-TIEMPO LA SEGUNDA CRESTA DE INTENSIDAD. ENTONCES SE AÑADE EN UN SEGUNDO PASO, EL MATERIAL EXPULSADO DEL REACTOR SOBRE UN SECADOR DE PLATOS, CUYOS PLATOS DE CALDEO SON MANTENIDOS A TEMPERATURAS DE 240 A 300 (GRADOS) C, MIENTRAS SU PLATO INFERIOR REFRIGERADOR PRESENTA TEMPERATURAS DE 5 A 45 (GRADOS) C. EL MATERIAL QUE CUBRE LOS PLATOS DEL SECADOR DE PLATOS, CON UN GROSOR DE CAPA DE 5 A 20 MM, PERMANECE DE 35 A 70 MINUTOS EN EL SECADOR DE PLATOS, MIENTRAS SE CONDUCE CONTINUAMENTE UN GAS CONTENIENDO AMONIACO A TRAVES DEL SECADOR DE PLATOS. FINALMENTE SE LIBERA EL GAS CONTENIENDO AMONIACO QUESALE DEL SECADOR DE PLATOS, POR MEDIO DE CONDENSACION DEL VAPOR DE AGUA QUE CONTIENE, Y EL GAS CONTENIENDO AMONIACO ES DE NUEVO CALENTADO ANTES DE ENTRAR EN EL SECADOR DE PLATOS.
ES92115470T 1991-10-12 1992-09-10 Procedimiento para la preparacion de polifosfato de amonio. Expired - Lifetime ES2087379T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4133811A DE4133811A1 (de) 1991-10-12 1991-10-12 Verfahren zur herstellung von ammoniumpolyphosphat

Publications (1)

Publication Number Publication Date
ES2087379T3 true ES2087379T3 (es) 1996-07-16

Family

ID=6442548

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92115470T Expired - Lifetime ES2087379T3 (es) 1991-10-12 1992-09-10 Procedimiento para la preparacion de polifosfato de amonio.

Country Status (5)

Country Link
US (1) US5277887A (es)
EP (1) EP0537475B1 (es)
JP (1) JPH06166508A (es)
DE (2) DE4133811A1 (es)
ES (1) ES2087379T3 (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19517499A1 (de) * 1995-05-12 1996-11-14 Budenheim Rud A Oetker Chemie Verfahren zur Herstellung von Ammoniumpolyphosphat
DE19959288C2 (de) 1999-12-09 2002-01-24 Clariant Gmbh Sicherheitstechnisch verbesserte Pigmentzubereitungen
US20060160978A1 (en) * 2005-01-20 2006-07-20 Gupta Laxmi C Flame retardant systems, and related methods and uses
EP1945724A2 (en) * 2005-11-08 2008-07-23 Laxmi C. Gupta Methods for applying fire retardant systems, compositions and uses
US20080102243A1 (en) * 2006-10-11 2008-05-01 Gupta Laxmi C Laminate fire retardant systems and uses
US8932497B2 (en) 2008-03-13 2015-01-13 Laxmi C. Gupta Fire retardant coatings and bodies, and methods of use
US20090292032A1 (en) * 2008-05-02 2009-11-26 Gupta Laxmi C Fire retardant foam and methods of use
US11628589B2 (en) 2015-10-20 2023-04-18 Clariant International Ltd Mixtures of ammonium polyphosphate and at least one soluble ionic compound containing sulfate and/or is capable of releasing sulfate ions
TW202239700A (zh) 2021-02-15 2022-10-16 瑞士商克萊瑞特國際股份有限公司 包含聚磷酸銨之組成物

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1446260A (en) * 1973-06-14 1976-08-18 Hoechst Ag Process for the production of linear ammonium polyphosphates impact tool
DE3925675A1 (de) * 1989-08-03 1991-02-07 Hoechst Ag Verfahren zur herstellung von ammoniumpolyphosphat, welches eine niedrigviskose waessrige suspension ergibt
DE4006862A1 (de) * 1990-03-05 1991-09-12 Hoechst Ag Anlage zur herstellung von ammoniumpolyphosphat
DE4032133A1 (de) * 1990-10-10 1992-04-16 Hoechst Ag Verfahren und anlage zur herstellung von ammoniumpolyphosphat

Also Published As

Publication number Publication date
EP0537475A1 (de) 1993-04-21
US5277887A (en) 1994-01-11
DE59206023D1 (de) 1996-05-23
JPH06166508A (ja) 1994-06-14
DE4133811A1 (de) 1993-04-15
EP0537475B1 (de) 1996-04-17

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