IT1125158B - Miglioramenti nei procedimenti per la preparazione di tripolifosfato sodico - Google Patents

Miglioramenti nei procedimenti per la preparazione di tripolifosfato sodico

Info

Publication number
IT1125158B
IT1125158B IT29543/76A IT2954376A IT1125158B IT 1125158 B IT1125158 B IT 1125158B IT 29543/76 A IT29543/76 A IT 29543/76A IT 2954376 A IT2954376 A IT 2954376A IT 1125158 B IT1125158 B IT 1125158B
Authority
IT
Italy
Prior art keywords
procedures
preparation
sodium tripolyphosphate
tripolyphosphate
sodium
Prior art date
Application number
IT29543/76A
Other languages
English (en)
Italian (it)
Inventor
Onorio Gallistru
Artemio Gellera
Luciano Cavalli
Original Assignee
Sarda Off Mec
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 Sarda Off Mec filed Critical Sarda Off Mec
Priority to IT29543/76A priority Critical patent/IT1125158B/it
Priority to GB45568/77A priority patent/GB1590098A/en
Priority to US05/848,422 priority patent/US4146575A/en
Priority to ZA00776558A priority patent/ZA776558B/xx
Priority to IN1588/CAL/77A priority patent/IN146258B/en
Priority to FR7734374A priority patent/FR2371382A1/fr
Priority to AU30597/77A priority patent/AU501276B2/en
Priority to ES464265A priority patent/ES464265A1/es
Application granted granted Critical
Publication of IT1125158B publication Critical patent/IT1125158B/it

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
    • C01B25/30—Alkali metal phosphates
    • C01B25/301—Preparation from liquid orthophosphoric acid or from an acid solution or suspension of orthophosphates
    • C01B25/303—Preparation from liquid orthophosphoric acid or from an acid solution or suspension of orthophosphates with elimination of impurities
    • 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
    • C01B25/412—Preparation from alkali metal orthophosphates
    • C01B25/416—Pure alkali metal polyphosphates from impure starting materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Battery Electrode And Active Subsutance (AREA)
IT29543/76A 1976-11-19 1976-11-19 Miglioramenti nei procedimenti per la preparazione di tripolifosfato sodico IT1125158B (it)

Priority Applications (8)

Application Number Priority Date Filing Date Title
IT29543/76A IT1125158B (it) 1976-11-19 1976-11-19 Miglioramenti nei procedimenti per la preparazione di tripolifosfato sodico
GB45568/77A GB1590098A (en) 1976-11-19 1977-11-02 Preparation of sodium tripolyphosphate
US05/848,422 US4146575A (en) 1976-11-19 1977-11-03 Preparation of sodium tripolyphosphate
ZA00776558A ZA776558B (en) 1976-11-19 1977-11-03 Improvements in the preparation of sodium tripolyphosphate
IN1588/CAL/77A IN146258B (OSRAM) 1976-11-19 1977-11-04
FR7734374A FR2371382A1 (fr) 1976-11-19 1977-11-09 Amelioration dans la preparation du tripolyphosphate de sodium
AU30597/77A AU501276B2 (en) 1976-11-19 1977-11-14 Preparation of sodium tripolyphosphate
ES464265A ES464265A1 (es) 1976-11-19 1977-11-18 Un procedimiento para la preparacion de tripolifosfato sodi-co.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT29543/76A IT1125158B (it) 1976-11-19 1976-11-19 Miglioramenti nei procedimenti per la preparazione di tripolifosfato sodico

Publications (1)

Publication Number Publication Date
IT1125158B true IT1125158B (it) 1986-05-14

Family

ID=11227618

Family Applications (1)

Application Number Title Priority Date Filing Date
IT29543/76A IT1125158B (it) 1976-11-19 1976-11-19 Miglioramenti nei procedimenti per la preparazione di tripolifosfato sodico

Country Status (8)

Country Link
US (1) US4146575A (OSRAM)
AU (1) AU501276B2 (OSRAM)
ES (1) ES464265A1 (OSRAM)
FR (1) FR2371382A1 (OSRAM)
GB (1) GB1590098A (OSRAM)
IN (1) IN146258B (OSRAM)
IT (1) IT1125158B (OSRAM)
ZA (1) ZA776558B (OSRAM)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3437684C1 (de) * 1984-10-15 1986-06-05 Hoechst Ag, 6230 Frankfurt Verfahren zur Reduktion von Eisen und Vanadium in phosphorsaurer Lösung
DE3437686C2 (de) * 1984-10-15 1986-10-02 Hoechst Ag, 6230 Frankfurt Verfahren zur Reduktion von Metallionen in wäßrigen Lösungen
DE3444975A1 (de) * 1984-12-10 1986-06-12 Hoechst Ag, 6230 Frankfurt Verfahren zur entarsenierung von phosphorsauren loesungen
US4676963A (en) * 1986-05-09 1987-06-30 Fmc Corporation Manufacture of sodium tripolyphosphate from wet acid

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1825965A (en) * 1928-07-14 1931-10-06 Bowker Chemical Company Production of disodium phosphate
US1998182A (en) * 1932-07-16 1935-04-16 Victor Chemical Works Production of di-sodium phosphate
US3081151A (en) * 1958-09-23 1963-03-12 Saint Gobain Manufacture of alkali orthophosphates
GB1104900A (en) * 1964-05-04 1968-03-06 Marchon Products Ltd Improvements in the manufacture of alkali metal phosphates
US3421846A (en) * 1965-06-07 1969-01-14 Hooker Chemical Corp Production of sodium phosphates

Also Published As

Publication number Publication date
FR2371382B1 (OSRAM) 1981-05-08
AU501276B2 (en) 1979-06-14
ES464265A1 (es) 1978-08-01
US4146575A (en) 1979-03-27
GB1590098A (en) 1981-05-28
ZA776558B (en) 1978-08-30
FR2371382A1 (fr) 1978-06-16
IN146258B (OSRAM) 1979-04-07

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