IT1109503B - Processo per il trattamento di acido fosforico ottenuto mediante processo a umido - Google Patents

Processo per il trattamento di acido fosforico ottenuto mediante processo a umido

Info

Publication number
IT1109503B
IT1109503B IT23108/78A IT2310878A IT1109503B IT 1109503 B IT1109503 B IT 1109503B IT 23108/78 A IT23108/78 A IT 23108/78A IT 2310878 A IT2310878 A IT 2310878A IT 1109503 B IT1109503 B IT 1109503B
Authority
IT
Italy
Prior art keywords
treatment
phosphoric acid
acid obtained
wet
wet process
Prior art date
Application number
IT23108/78A
Other languages
English (en)
Other versions
IT7823108A0 (it
Original Assignee
Grace W R & Co
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 US05/883,381 external-priority patent/US4164550A/en
Application filed by Grace W R & Co filed Critical Grace W R & Co
Publication of IT7823108A0 publication Critical patent/IT7823108A0/it
Application granted granted Critical
Publication of IT1109503B publication Critical patent/IT1109503B/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
    • C01B25/18—Phosphoric acid
    • C01B25/234—Purification; Stabilisation; Concentration
    • C01B25/235—Clarification; Stabilisation to prevent post-precipitation of dissolved impurities

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
IT23108/78A 1978-03-06 1978-05-05 Processo per il trattamento di acido fosforico ottenuto mediante processo a umido IT1109503B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/883,381 US4164550A (en) 1976-05-06 1978-03-06 Production of stabilized wet process phosphoric acid

Publications (2)

Publication Number Publication Date
IT7823108A0 IT7823108A0 (it) 1978-05-05
IT1109503B true IT1109503B (it) 1985-12-16

Family

ID=25382470

Family Applications (1)

Application Number Title Priority Date Filing Date
IT23108/78A IT1109503B (it) 1978-03-06 1978-05-05 Processo per il trattamento di acido fosforico ottenuto mediante processo a umido

Country Status (8)

Country Link
JP (1) JPS54118396A (it)
AU (1) AU499517B2 (it)
BR (1) BR7803039A (it)
DE (1) DE2818728B2 (it)
IT (1) IT1109503B (it)
MX (1) MX148659A (it)
NL (1) NL7805162A (it)
ZA (1) ZA782579B (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0548018Y2 (it) * 1989-01-20 1993-12-20

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA637832A (en) * 1962-03-06 American Cyanamid Company Phosphoric acid preparation
CA776577A (en) * 1968-01-23 G. Brown Martin Production of phosphoric acid and gypsum
CA463505A (en) * 1950-03-07 R. Singer Marshall Manufacture of phosphoric acid
US2883266A (en) * 1956-06-29 1959-04-21 Swift & Co Production of sodium silico fluoride and fluorine-free phosphoric acid
US2987376A (en) * 1956-12-27 1961-06-06 Int Minerals & Chem Corp Method for defluorination of phosphoric acid
US3151941A (en) * 1960-05-02 1964-10-06 Smith Douglass Company Inc Defluorination of peosphoric acid
US3141734A (en) * 1960-10-25 1964-07-21 Int Minerals & Chem Corp Method of clarifying acidic phosphatic solutions
US3160495A (en) * 1961-03-28 1964-12-08 Minerals & Chem Philipp Corp Wet process phosphoric acid and liquid fertilizer compositions containing the same
US3193351A (en) * 1961-07-05 1965-07-06 Nat Distillers Chem Corp Removal of fluorine from wet process prosphoric acid
NL300215A (it) * 1962-11-09
GB1113922A (en) * 1964-08-19 1968-05-15 Fisons Ltd Clarifying phosphoric acid
NL151045B (nl) * 1964-11-30 1976-10-15 Windmill Holland Bv Werkwijze voor het verwijderen van fluor uit fosforzuur.
US3528771A (en) * 1967-10-10 1970-09-15 Int Minerals & Chem Corp Phosphoric acid clarification
CA1042180A (en) * 1973-12-13 1978-11-14 Sergio O. Pierres Stabilization of wet process phosphoric acid
DE2719701C3 (de) * 1976-05-06 1986-10-02 W.R. Grace & Co., New York, N.Y. Verfahren zur Überführung von Naßphosphorsäure in eine nicht zu Ausfällungen neigende konzentrierte Phosphorsäure

Also Published As

Publication number Publication date
DE2818728A1 (de) 1979-09-13
IT7823108A0 (it) 1978-05-05
BR7803039A (pt) 1979-11-27
DE2818728B2 (de) 1980-01-24
DE2818728C3 (it) 1988-02-11
NL7805162A (nl) 1979-09-10
JPS54118396A (en) 1979-09-13
ZA782579B (en) 1979-04-25
JPS6149243B2 (it) 1986-10-28
AU499517B2 (en) 1979-04-26
MX148659A (es) 1983-05-26

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