BE874691A - Procede d'elimination des impuretes de l'acide phosphorique - Google Patents
Procede d'elimination des impuretes de l'acide phosphoriqueInfo
- Publication number
- BE874691A BE874691A BE0/193901A BE193901A BE874691A BE 874691 A BE874691 A BE 874691A BE 0/193901 A BE0/193901 A BE 0/193901A BE 193901 A BE193901 A BE 193901A BE 874691 A BE874691 A BE 874691A
- Authority
- BE
- Belgium
- Prior art keywords
- elimination
- impurities
- phosphoric acid
- phosphoric
- acid
- 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
- C01B25/22—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
-
- 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
- C01B25/234—Purification; Stabilisation; Concentration
- C01B25/237—Selective elimination of impurities
- C01B25/238—Cationic impurities, e.g. arsenic compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Removal Of Specific Substances (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/884,823 US4299804A (en) | 1978-03-09 | 1978-03-09 | Removal of magnesium and aluminum impurities from wet process phosphoric acid |
Publications (1)
Publication Number | Publication Date |
---|---|
BE874691A true BE874691A (fr) | 1979-09-10 |
Family
ID=25385479
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE0/193901A BE874691A (fr) | 1978-03-09 | 1979-03-08 | Procede d'elimination des impuretes de l'acide phosphorique |
Country Status (10)
Country | Link |
---|---|
US (1) | US4299804A (fr) |
JP (1) | JPS5567516A (fr) |
BE (1) | BE874691A (fr) |
CA (1) | CA1117730A (fr) |
ES (1) | ES478179A1 (fr) |
FR (1) | FR2419253A1 (fr) |
GB (1) | GB2015985B (fr) |
IT (1) | IT1114462B (fr) |
NL (1) | NL7901829A (fr) |
SE (1) | SE7902080L (fr) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4377560A (en) * | 1981-07-13 | 1983-03-22 | Occidental Research Corporation | Process for producing low aluminum content phosphoric acid from high aluminum matrix |
US4379776A (en) * | 1981-07-13 | 1983-04-12 | Occidental Research Corporation | Process for reducing aluminum and fluorine in phosphoric acids |
US4443421A (en) * | 1982-03-16 | 1984-04-17 | Occidental Chemical Corporation | Process for removing particulate impurities from aqueous phosphoric acid |
US4505884A (en) * | 1982-05-17 | 1985-03-19 | Occidental Research Corporation | Process for producing HF from impure phosphoric acids |
US4435372A (en) | 1982-09-13 | 1984-03-06 | Tennessee Valley Authority | Production of purified strong wet-process phosphoric acid |
US4557748A (en) * | 1984-08-24 | 1985-12-10 | Farmland Industries, Inc. | Method of lowering the magnesium impurity level of wet-process phosphoric acid during production of liquid fertilizer |
FR2570363B1 (fr) * | 1984-09-14 | 1986-12-26 | Centre Nat Rech Scient | Procede de separation d'impuretes a base de magnesium et eventuellement d'aluminium et de fluor, d'un acide phosphorique prepare par voie humide |
US4655789A (en) * | 1985-05-08 | 1987-04-07 | Freeport Research And Engineering Company | Phosphoric acid crystallization process |
US4657559A (en) * | 1985-05-08 | 1987-04-14 | Freeport Research And Engineering Company | Process for seed crystal preparation for phosphoric acid crystallization |
US4655790A (en) * | 1985-05-08 | 1987-04-07 | Freeport Research And Development Company | Phosphoric acid crystallization process |
US4640828A (en) * | 1985-10-22 | 1987-02-03 | International Minerals & Chemical Corp. | Separation of dissolved substances from wet process phosphoric acid |
US4639359A (en) * | 1985-12-16 | 1987-01-27 | International Minerals & Chemical Corp. | Process of removing cationic impurities from wet process phosphoric acid |
US4710366A (en) * | 1986-10-23 | 1987-12-01 | Freeport Minerals Company | Method for producing stabilized wet process phosphoric acid with low content of magnesium and aluminum |
US5236679A (en) * | 1992-05-06 | 1993-08-17 | Freeport-Mcmoran Resource Partners | Removal of aluminum contamination during production of phosphoric acid |
FI105909B (fi) * | 1999-03-24 | 2000-10-31 | Kemira Chemicals Oy | Menetelmä fosforihapon laadun parantamiseksi |
US7736526B2 (en) * | 2008-10-03 | 2010-06-15 | Thompson Industrial Services, Llc | Method of filtering phosphate utilizing a rotary table filter or horizontal table filter |
CN103523764B (zh) * | 2013-06-27 | 2016-08-17 | 云南云天化国际化工股份有限公司 | 一种降低湿法磷酸中镁铝杂质的方法 |
KR101757812B1 (ko) | 2015-05-29 | 2017-07-14 | 세메스 주식회사 | 인산 재생 유닛 및 방법, 그리고 기판 처리 장치 및 방법 |
CN106185855B (zh) * | 2016-06-30 | 2017-12-15 | 云南磷化集团有限公司 | 一种饲料级湿法磷酸深度净化方法 |
CN107804831A (zh) * | 2017-12-05 | 2018-03-16 | 瓮福达州化工有限责任公司 | 一种控制净化湿法磷酸钠离子含量的方法 |
CN109795995B (zh) * | 2019-04-04 | 2021-02-05 | 华东理工大学 | 一种盐酸法湿法磷酸高效除杂的方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3379501A (en) * | 1965-02-23 | 1968-04-23 | Fmc Corp | Phosphoric acid purification |
GB1220223A (en) * | 1967-01-16 | 1971-01-20 | Messerschmitt Boelkow Blohm | A liquid cooled rocket combustion chamber with thrust nozzle |
US3494736A (en) * | 1968-08-26 | 1970-02-10 | John N Carothers | Process for removing silicon,aluminum and fluorine from wet process phosphoric acid |
US3800029A (en) * | 1970-02-27 | 1974-03-26 | Mitsui Toatsu Chemicals | Process for recovering sodium fluosilicate from wet process phosphoric acid |
US4136199A (en) * | 1977-06-27 | 1979-01-23 | Occidental Chemical Company | Metallic ion removal from phosphoric acid |
-
1978
- 1978-03-09 US US05/884,823 patent/US4299804A/en not_active Expired - Lifetime
- 1978-12-28 CA CA000318725A patent/CA1117730A/fr not_active Expired
- 1978-12-29 JP JP16440678A patent/JPS5567516A/ja active Pending
-
1979
- 1979-01-26 GB GB7902905A patent/GB2015985B/en not_active Expired
- 1979-02-05 FR FR7902888A patent/FR2419253A1/fr active Granted
- 1979-02-28 ES ES478179A patent/ES478179A1/es not_active Expired
- 1979-03-05 IT IT48211/79A patent/IT1114462B/it active
- 1979-03-07 NL NL7901829A patent/NL7901829A/xx not_active Application Discontinuation
- 1979-03-08 SE SE7902080A patent/SE7902080L/ not_active Application Discontinuation
- 1979-03-08 BE BE0/193901A patent/BE874691A/fr not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CA1117730A (fr) | 1982-02-09 |
FR2419253A1 (fr) | 1979-10-05 |
JPS5567516A (en) | 1980-05-21 |
IT1114462B (it) | 1986-01-27 |
US4299804A (en) | 1981-11-10 |
NL7901829A (nl) | 1979-09-11 |
ES478179A1 (es) | 1979-05-16 |
SE7902080L (sv) | 1979-09-10 |
GB2015985A (en) | 1979-09-19 |
GB2015985B (en) | 1982-08-11 |
FR2419253B3 (fr) | 1981-11-20 |
IT7948211A0 (it) | 1979-03-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: AGRICO CHEMICAL CY Effective date: 19880331 |