NL277211A - - Google Patents
Info
- Publication number
- NL277211A NL277211A NL277211DA NL277211A NL 277211 A NL277211 A NL 277211A NL 277211D A NL277211D A NL 277211DA NL 277211 A NL277211 A NL 277211A
- Authority
- NL
- Netherlands
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
- C01B25/237—Selective 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
- C01B25/18—Phosphoric acid
- C01B25/22—Preparation by reacting phosphate-containing material with an acid, e.g. wet process
-
- 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
- C01B25/22—Preparation by reacting phosphate-containing material with an acid, e.g. wet process
- C01B25/222—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen
- C01B25/223—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen only one form of calcium sulfate being formed
- C01B25/225—Dihydrate process
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Removal Of Specific Substances (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR859273A FR1294872A (fr) | 1961-04-20 | 1961-04-20 | Fabrication de l'acide phosphorique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL277211A true NL277211A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Family
ID=8753425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL277211D NL277211A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1961-04-20 |
Country Status (6)
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA718837A (en) * | 1962-06-23 | 1965-09-28 | Toyo Engineering Corporation | Wet-process phosphoric acid manufacture by the semihydrate-dihydrate calcium sulphate method |
| US3388966A (en) * | 1964-02-10 | 1968-06-18 | Robert A. Macdonald | Ammonium phosphate preparation |
| US3410656A (en) * | 1966-06-01 | 1968-11-12 | Fmc Corp | Phosphoric acid purification |
| US3984525A (en) * | 1967-02-01 | 1976-10-05 | Albright & Wilson Limited | Manufacture of phosphoric acid |
| US3619136A (en) * | 1968-11-12 | 1971-11-09 | Atlantic Richfield Co | Process for producing phosphoric acid |
| US3956464A (en) * | 1970-10-16 | 1976-05-11 | Pennzoil Company | Preparation of phosphates |
| US3943232A (en) * | 1974-03-04 | 1976-03-09 | Atlantic Richfield Company | Process for the defluorination of dilute fluorine containing aqueous acid solutions |
| US4026995A (en) * | 1976-02-11 | 1977-05-31 | Atlantic Richfield Company | Process for defluorination of commercial phosphoric acid |
| US4136199A (en) * | 1977-06-27 | 1979-01-23 | Occidental Chemical Company | Metallic ion removal from phosphoric acid |
| LU80676A1 (fr) * | 1978-12-19 | 1980-07-21 | Metallurgie Hoboken | Procede pour enlever des agents salissants de l'acide phosphorique |
| SE418845B (sv) * | 1979-05-10 | 1981-06-29 | Boliden Ab | Forfarande for rening av vatprocessfosforsyra |
| FR2464921A1 (fr) * | 1979-09-07 | 1981-03-20 | Grp Franco Senegal Etud | Procede de traitement d'un phosphate aluminocalcique |
| US4311681A (en) * | 1980-05-19 | 1982-01-19 | Fmc Corporation | Method of regenerating phosphoric acid extraction solvent |
| DE3421297A1 (de) * | 1984-06-08 | 1985-12-12 | Basf Ag, 6700 Ludwigshafen | Verfahren zur reduzierung des schwefelsaeuregehaltes und des gehaltes an verunreinigungen in nassverfahrensphosphorsaeure |
| US5536686A (en) * | 1992-10-20 | 1996-07-16 | The Research Foundation Of State University Of New York At Buffalo | Phosphate binders for metal-matrix composites |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE20994E (en) * | 1928-06-05 | 1939-01-31 | Method of treating raw phosphate | |
| US1787192A (en) * | 1928-08-11 | 1930-12-30 | Rumford Chemical Works | Method of purifying phosphoric acid and the like |
| US2049032A (en) * | 1932-07-02 | 1936-07-28 | Dorr Co Inc | Preparation of phosphoric acid |
| US2003051A (en) * | 1933-07-05 | 1935-05-28 | Victor Chemical Works | Purification of strong phosphoric acid |
| US2106223A (en) * | 1934-04-06 | 1938-01-25 | Kemiska Patenter Ab | Process for the manufacture of superphosphate |
| US2954284A (en) * | 1958-02-13 | 1960-09-27 | Ohio Commw Eng Co | Fuel comprising a mixture of ammonium nitrate and metal particles |
-
0
- NL NL277211D patent/NL277211A/xx unknown
- BE BE791820D patent/BE791820Q/xx active
- US US3124419D patent/US3124419A/en not_active Expired - Lifetime
-
1961
- 1961-04-20 FR FR859273A patent/FR1294872A/fr not_active Expired
- 1961-12-19 DE DEP28450A patent/DE1265725B/de active Pending
-
1962
- 1962-04-19 GB GB15201/62A patent/GB986154A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3124419A (en) | 1964-03-10 |
| BE791820Q (fr) | 1973-03-16 |
| GB986154A (en) | 1965-03-17 |
| FR1294872A (fr) | 1962-06-01 |
| DE1265725B (de) | 1968-04-11 |