NL277211A - - Google Patents

Info

Publication number: NL277211A
Authority: NL; Netherlands

Application number

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.)

1961-04-20

Publication of NL277211A publication Critical patent/NL277211A/xx

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)

NL277211D 1961-04-20 NL277211A (fr)

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 (fr)

Family

ID=8753425

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL277211D NL277211A (fr)	1961-04-20

Country Status (6)

Country	Link
US (1)	US3124419A (fr)
BE (1)	BE791820Q (fr)
DE (1)	DE1265725B (fr)
FR (1)	FR1294872A (fr)
GB (1)	GB986154A (fr)
NL (1)	NL277211A (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
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
JPS5375196A (en) *	1976-12-15	1978-07-04	Central Glass Co Ltd	Removing method for heavy metals from phosphoric acid solution
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)

* Cited by examiner, † Cited by third party
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
- US US3124419D patent/US3124419A/en not_active Expired - Lifetime
- BE BE791820D patent/BE791820Q/fr active
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
FR1294872A (fr)	1962-06-01
DE1265725B (de)	1968-04-11
GB986154A (en)	1965-03-17
US3124419A (en)	1964-03-10
BE791820Q (fr)	1973-03-16

Publication	Publication Date	Title
AT224007B (fr)	1962-10-25
BE625289A (fr)
BE601846A (fr)
BE396226A (fr)
BE458606A (fr)
BE464928A (fr)
BE469342A (fr)
BE472265A (fr)
BE475425A (fr)
BE475477A (fr)
BE476407A (fr)
BE478349A (fr)
BE482264A (fr)
BE493336A (fr)
BE567723A (fr)
BE568568A (fr)
BE583834A (fr)
BE587184A (fr)
BE596839A (fr)
BE597352A (fr)
BE597570A (fr)
BE598861A (fr)
BE599016A (fr)
BE599210A (fr)
BE599528A (fr)