GB1404546A - Process for purifying commercial-grade phosphoric acid by extraction - Google Patents
Process for purifying commercial-grade phosphoric acid by extractionInfo
- Publication number
- GB1404546A GB1404546A GB2893573A GB2893573A GB1404546A GB 1404546 A GB1404546 A GB 1404546A GB 2893573 A GB2893573 A GB 2893573A GB 2893573 A GB2893573 A GB 2893573A GB 1404546 A GB1404546 A GB 1404546A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- organic phase
- phase
- inorganic
- oetker
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
- 238000000034 method Methods 0.000 title abstract 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 title 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 title 1
- 238000000605 extraction Methods 0.000 title 1
- 239000002253 acid Substances 0.000 abstract 5
- 239000012074 organic phase Substances 0.000 abstract 5
- 239000012071 phase Substances 0.000 abstract 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 abstract 2
- 229910017053 inorganic salt Inorganic materials 0.000 abstract 2
- 239000003960 organic solvent Substances 0.000 abstract 2
- 238000000926 separation method Methods 0.000 abstract 2
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 abstract 1
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 abstract 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 abstract 1
- 229910019142 PO4 Inorganic materials 0.000 abstract 1
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- 150000001768 cations Chemical class 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 229910001853 inorganic hydroxide Inorganic materials 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 abstract 1
- 150000002576 ketones Chemical class 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract 1
- 239000010452 phosphate Substances 0.000 abstract 1
- 235000021110 pickles Nutrition 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 229910021653 sulphate ion Inorganic materials 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/36—Regeneration of waste pickling liquors
-
- 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
- C01B25/46—Preparation involving solvent-solvent extraction
- C01B25/461—Preparation involving solvent-solvent extraction the phosphoric acid present in the medium obtained after reaction being first extracted from the liquid phase formed or separated then re-extracted as free acid by using water or as a phosphate by using a basic compound
-
- 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
- C01B25/46—Preparation involving solvent-solvent extraction
- C01B25/461—Preparation involving solvent-solvent extraction the phosphoric acid present in the medium obtained after reaction being first extracted from the liquid phase formed or separated then re-extracted as free acid by using water or as a phosphate by using a basic compound
- C01B25/462—Preparation involving solvent-solvent extraction the phosphoric acid present in the medium obtained after reaction being first extracted from the liquid phase formed or separated then re-extracted as free acid by using water or as a phosphate by using a basic compound the extracting agent being alcohol or a mixture of alcohols
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
Abstract
1404546 Purifying phosphonic acid R A OETKER [trading as CHEMISCHE FABRIK BUDENHEIM RUDOLF A OETKER] 19 June 1973 [19 June 1972] 28935/73 Heading C1A H 3 PO 4 is purified by contacting a mixture of the acid and a water miscible organic solvent with a cone. aq. soln. of an inorganic salt and/or hydroxide, to form an H 3 PO 4 -containing organic phase and an impurity-containing inorganic phase, and then following separation of the two phases, the H 3 PO 4 is recovered from the organic phase by distilling off the solvent. The inorganic salt may be an acid phosphate, carbonate, sulphate or borate of Mg, Zn, Ca or Al. The salt or hydroxide may be added in solid form to the organic phase. The organic solvent may be a ketone and/or an aliphatic alcohol, preferably isopropanol. The purified acid/ organic phase may be contacted with a strong acid cation exchanger in the H<SP>+</SP> form to remove inorganic phase ions prior to separation of the organic phase. The acid may be wet-process, a pickle liquor or electrolytic.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2229602 | 1972-06-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1404546A true GB1404546A (en) | 1975-09-03 |
Family
ID=5848004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2893573A Expired GB1404546A (en) | 1972-06-19 | 1973-06-19 | Process for purifying commercial-grade phosphoric acid by extraction |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS5310957B2 (en) |
| BE (1) | BE796996A (en) |
| DE (1) | DE2229602B1 (en) |
| FR (1) | FR2189316B1 (en) |
| GB (1) | GB1404546A (en) |
| IL (1) | IL42487A (en) |
| IT (1) | IT982777B (en) |
| NL (1) | NL173627C (en) |
| SE (1) | SE386148B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2433307C3 (en) * | 1974-07-11 | 1984-03-22 | Chemische Fabrik Budenheim Rudolf A. Oetker, 6501 Budenheim | Process for the separation of a phosphoric acid-organic solvent-water mixture |
| DE2435789C3 (en) * | 1974-07-25 | 1984-06-20 | Hoechst Ag, 6230 Frankfurt | Process for the purification of phosphoric acid with the help of 3-methoxybutanol |
| DE2538720C2 (en) * | 1975-08-30 | 1982-11-18 | Giulini Chemie Gmbh, 6700 Ludwigshafen | Process for purifying wet process phosphoric acid |
| FR2447348A1 (en) * | 1979-01-24 | 1980-08-22 | Rhone Poulenc Ind | PROCESS FOR THE PURIFICATION OF AN IMPURE PHOSPHORIC ACID |
| JPS55124490U (en) * | 1979-02-27 | 1980-09-03 | ||
| DE3328499A1 (en) * | 1983-08-06 | 1985-02-14 | Hoechst Ag, 6230 Frankfurt | METHOD FOR REDUCING THE FLUORINE CONTENT OF A WET PROCESS PHOSPHORIC ACID |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1531487A (en) * | 1967-05-11 | 1968-07-05 | Pechiney Saint Gobain | Improved continuous process for the purification of phosphoric acid by solvents |
| DE2029564C3 (en) * | 1970-06-16 | 1978-06-22 | Giulini Chemie Gmbh, 6700 Ludwigshafen | Process for the production of pure alkali phosphates from rock phosphoric acid |
-
1972
- 1972-06-19 DE DE2229602A patent/DE2229602B1/en active Pending
-
1973
- 1973-03-19 BE BE128972A patent/BE796996A/en not_active IP Right Cessation
- 1973-03-29 NL NLAANVRAGE7304362,A patent/NL173627C/en not_active IP Right Cessation
- 1973-04-16 IT IT23054/73A patent/IT982777B/en active
- 1973-05-04 SE SE7306294A patent/SE386148B/en unknown
- 1973-06-12 IL IL42487A patent/IL42487A/en unknown
- 1973-06-19 GB GB2893573A patent/GB1404546A/en not_active Expired
- 1973-06-19 FR FR7323032A patent/FR2189316B1/fr not_active Expired
- 1973-06-19 JP JP6910873A patent/JPS5310957B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IL42487A0 (en) | 1973-08-29 |
| JPS5310957B2 (en) | 1978-04-18 |
| NL7304362A (en) | 1973-12-21 |
| NL173627C (en) | 1984-02-16 |
| BE796996A (en) | 1973-07-16 |
| DE2229602B1 (en) | 1973-09-27 |
| FR2189316A1 (en) | 1974-01-25 |
| IT982777B (en) | 1974-10-21 |
| JPS4963692A (en) | 1974-06-20 |
| SE386148B (en) | 1976-08-02 |
| NL173627B (en) | 1983-09-16 |
| FR2189316B1 (en) | 1978-07-21 |
| IL42487A (en) | 1977-02-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |