ES8301181A1 - Un procedimiento para la obtencion de tripolifosfato sodico hexahidratado granular - Google Patents

Un procedimiento para la obtencion de tripolifosfato sodico hexahidratado granular

Info

Publication number
ES8301181A1
ES8301181A1 ES503492A ES503492A ES8301181A1 ES 8301181 A1 ES8301181 A1 ES 8301181A1 ES 503492 A ES503492 A ES 503492A ES 503492 A ES503492 A ES 503492A ES 8301181 A1 ES8301181 A1 ES 8301181A1
Authority
ES
Spain
Prior art keywords
sodium tripolyphosphate
preparation
hexahydrate
granular sodium
low friability
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
ES503492A
Other languages
English (en)
Other versions
ES503492A0 (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.)
FMC Corp
Original Assignee
FMC Corp
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 FMC Corp filed Critical FMC Corp
Publication of ES8301181A1 publication Critical patent/ES8301181A1/es
Publication of ES503492A0 publication Critical patent/ES503492A0/es
Granted 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
    • C01B25/41—Polyphosphates of alkali metals
    • C01B25/418—After-treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

UN PROCEDIMIENTO PARA LA OBTENCION DE TRIPOLIFOSFATO SODICO HEXAHIDRATADO GRANULAR. CONSTA DE LAS SIGUIENTES ETAPAS: 1<002> HUMEDECER PARTICULAS DE TRIPOLIFOSFATO SODICO ANHIDRO QUE CONTENGAN APROXIMADAMENTE 2% EN PESO DE UN PIROFOSFATO DE METAL ALCALINO. 2<002> AGITACION DEL MATERIAL DE MANERA QUE SE MANTENGA A TEMPERATURAS INFERIORES A 80<025>C, SECANDO EL MATERIAL HUMEDECIDO A UNA TEMPERATURA INFERIOR DE 80<025>C, ELIMINANDO LA HUMEDAD LIBRE Y RECUPERANDO EL TRIPOLIFOSFATO. EL MATERIAL HUMEDECIDO SE SECA EN UN REACTOR ROTATORIO HASTA CONTENER MENOS DE 1% EN PESO DE HUMEDAD LIBRE. EL SECADO TIENE LUGAR HASTA UN CONTENIDO EN HUMEDAD DEL 18 AL 22% EN PESO. SE OBTIENE TRIPOLIFOSFATO SODICO HEXAHIDRATADO GRANULADO CONSTITUIDO POR UNA FRACCION DE MENOS DE 841 MICRAS A MAS DE 149 MICRAS.
ES503492A 1980-06-30 1981-06-29 Un procedimiento para la obtencion de tripolifosfato sodico hexahidratado granular Granted ES503492A0 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/164,626 US4315898A (en) 1980-06-30 1980-06-30 Preparation of granular sodium tripolyphosphate hexahydrate with low friability

Publications (2)

Publication Number Publication Date
ES8301181A1 true ES8301181A1 (es) 1982-11-16
ES503492A0 ES503492A0 (es) 1982-11-16

Family

ID=22595354

Family Applications (1)

Application Number Title Priority Date Filing Date
ES503492A Granted ES503492A0 (es) 1980-06-30 1981-06-29 Un procedimiento para la obtencion de tripolifosfato sodico hexahidratado granular

Country Status (4)

Country Link
US (1) US4315898A (es)
CA (1) CA1150034A (es)
ES (1) ES503492A0 (es)
MX (1) MX156284A (es)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE442193B (sv) * 1983-05-25 1985-12-09 Boliden Ab Forfarande vid framstellning av granulert natriumtripolyfosfat
US4790984A (en) * 1987-08-10 1988-12-13 Fmc Corporation Process for preparing a sodium tripolyphosphate hexahydrate powder
US5294424A (en) * 1990-06-20 1994-03-15 Monsanto Company Process for preparing high absorptivity granular sodium phosphates
US5232620A (en) * 1991-02-28 1993-08-03 Fmc Corporation Sodium tripolyphosphate composition and method of producing it
US5215731A (en) * 1992-04-08 1993-06-01 Monsanto Company Process for preparing medium density granular sodium tripolyphosphate
CN108178138B (zh) * 2016-12-08 2020-01-07 江苏优士化学有限公司 一种新型三聚磷酸钠的生产工艺

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2745717A (en) * 1953-04-23 1956-05-15 Monsanto Chemicals Preparation of polyphosphates
US2898189A (en) * 1954-03-08 1959-08-04 Knapsack Ag Process for preparing alkali metal triphosphates, alkali metal pyrophosphates and mixtures thereof
US2916354A (en) * 1956-10-16 1959-12-08 Monsanto Chemicals Method of producing phosphates
US3054656A (en) * 1958-12-04 1962-09-18 Fmc Corp Process for the production of improved sodium tripolyphosphate
US3046092A (en) * 1960-03-11 1962-07-24 Monsanto Chemicals Tripolyphosphate process improvement
US3356447A (en) * 1963-08-05 1967-12-05 Electric Peduction Company Of Process for the manufacture of alkali metal tripoly phosphates having desirable characteristics
DE1244743B (de) * 1964-06-25 1967-07-20 Knapsack Ag Verfahren zur Herstellung von Natriumtripolyphosphat-Hexahydrat
US3520817A (en) * 1966-04-21 1970-07-21 Lever Brothers Ltd Process for making fast hydrating tripolyphosphates and detergents containing said phosphates
US3506586A (en) * 1967-04-03 1970-04-14 Procter & Gamble Process for hydrating pentasodium tripolyphosphate form i
US3469938A (en) * 1967-07-28 1969-09-30 Fmc Corp Production of hydrated sodium tripolyphosphate
DE1816839B2 (de) * 1968-12-24 1977-04-14 Unilever N.V., Rotterdam (Niederlande) Fuer die herstellung von waschmitteln geeignetes, partiell hydratisiertes alkalitripolyphosphat und verfahren zu seiner herstellung
US3650685A (en) * 1969-09-12 1972-03-21 Stauffer Chemical Co Low bulk density sodium polyphosphates
FR2080557A1 (es) * 1970-02-17 1971-11-19 Albert Ag Chem Werke
DE2008495C3 (de) * 1970-02-24 1974-12-05 Knapsack Ag, 5033 Huerth-Knapsack Verfahren zur Herstellung von körnigem Alkalitripolyphosphat
DE2039595A1 (de) * 1970-08-10 1972-02-17 Knapsack Ag Verfahren zur Herstellung von Natriumtripolyphosphat,das zu mehr als 75% hydratisiert ist und ein Schuettgewicht von 400 bis 600 g/l aufweist
US3852212A (en) * 1972-11-29 1974-12-03 Fmc Corp Method of producing hydrated sodium tripolyphosphate composition
US4134963A (en) * 1976-12-06 1979-01-16 Fmc Corporation Production of low density granular sodium tripolyphosphate

Also Published As

Publication number Publication date
CA1150034A (en) 1983-07-19
ES503492A0 (es) 1982-11-16
MX156284A (es) 1988-08-08
US4315898A (en) 1982-02-16

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