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 umidoInfo
- 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
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)
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)
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0548018Y2 (US07122547-20061017-C00032.png) * | 1989-01-20 | 1993-12-20 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA463505A (en) * | 1950-03-07 | R. Singer Marshall | Manufacture of phosphoric acid | |
CA776577A (en) * | 1968-01-23 | G. Brown Martin | Production of phosphoric acid and gypsum | |
CA637832A (en) * | 1962-03-06 | American Cyanamid Company | Phosphoric acid preparation | |
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 (US07122547-20061017-C00032.png) * | 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 |
-
1978
- 1978-04-27 AU AU35531/78A patent/AU499517B2/en not_active Expired
- 1978-04-28 DE DE2818728A patent/DE2818728C3/de not_active Expired
- 1978-05-05 ZA ZA00782579A patent/ZA782579B/xx unknown
- 1978-05-05 IT IT23108/78A patent/IT1109503B/it active
- 1978-05-10 MX MX173415A patent/MX148659A/es unknown
- 1978-05-12 JP JP5569478A patent/JPS54118396A/ja active Granted
- 1978-05-12 NL NL7805162A patent/NL7805162A/xx active Search and Examination
- 1978-05-15 BR BR7803039A patent/BR7803039A/pt unknown
Also Published As
Publication number | Publication date |
---|---|
AU499517B2 (en) | 1979-04-26 |
IT7823108A0 (it) | 1978-05-05 |
DE2818728C3 (de) | 1988-02-11 |
DE2818728A1 (de) | 1979-09-13 |
JPS6149243B2 (US07122547-20061017-C00032.png) | 1986-10-28 |
ZA782579B (en) | 1979-04-25 |
DE2818728B2 (de) | 1980-01-24 |
BR7803039A (pt) | 1979-11-27 |
NL7805162A (nl) | 1979-09-10 |
JPS54118396A (en) | 1979-09-13 |
MX148659A (es) | 1983-05-26 |
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