GB1452136A - Process for preparation of pufified phosphoric acid - Google Patents
Process for preparation of pufified phosphoric acidInfo
- Publication number
- GB1452136A GB1452136A GB5459273A GB5459273A GB1452136A GB 1452136 A GB1452136 A GB 1452136A GB 5459273 A GB5459273 A GB 5459273A GB 5459273 A GB5459273 A GB 5459273A GB 1452136 A GB1452136 A GB 1452136A
- Authority
- GB
- United Kingdom
- Prior art keywords
- organic
- phosphoric acid
- organic solvent
- weight
- water
- 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
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
- C01B25/232—Preparation by reacting phosphate containing material with concentrated sulfuric acid and subsequently lixiviating the obtained mass, e.g. clinker 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Extraction Or Liquid Replacement (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Medicines Containing Plant Substances (AREA)
- Saccharide Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
1452136 Phosphoric acid MIZUSAWA KAGAKU KOGYO KK 23 Nov 1973 [25 Nov 1972] 54592/73 Heading C1A Phosphoric acid is prepared by mixing phosphate rock with sulphuric acid to give a solid granular phosphate rock-sulphuric acid reaction product having a transfer index E of 0À8-2À8 and selectively extracting the phosphoric acid component from the reaction product using an organic solvent. The transfer index is defined by the relationship where (P 2 O 5 ), (CaO), (SO 3 ) and (F-fluorine) are the respective weight percentages in the reaction product and (M) is the sum of the weight percentages of Al 2 O 3 , SiO 2 , Fe 2 O 3 , MgO and alkali metal oxides, the quantity E being, for all practical purposes, the percentage of water in the composition. The organic solvent may be an aliphatic alcohol. where n is an integer of 1-3, m is 0 or 1, R<SP>1</SP> is an aliphatic hydrocarbon residue having 2 to 8 carbon atoms, whose carbon chain is optionally interrupted by an ether-type oxygen atom and R<SP>2</SP> is a H atom or an alkyl group of up to 4 carbon atoms. The preferred organic solvent is butanol and the organic solvent may contain water in an amount of at most x parts by weight where x = y-z, z is the weight of water present in the phosphate rock and y is that weight of water which if present in the rock would give a transfer index of 0À8. Other organic solvents mentioned include organic sulphoxides, organic phosphates, organic amines and quaternary organic ammonium salts.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP47118342A JPS5228117B2 (en) | 1972-11-25 | 1972-11-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1452136A true GB1452136A (en) | 1976-10-13 |
Family
ID=14734293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5459273A Expired GB1452136A (en) | 1972-11-25 | 1973-11-23 | Process for preparation of pufified phosphoric acid |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPS5228117B2 (en) |
| BE (1) | BE807728A (en) |
| CA (1) | CA1015529A (en) |
| DE (1) | DE2358780C3 (en) |
| ES (1) | ES420814A1 (en) |
| FR (1) | FR2207861B1 (en) |
| GB (1) | GB1452136A (en) |
| IN (1) | IN140714B (en) |
| IT (1) | IT999487B (en) |
| NL (1) | NL7316156A (en) |
| NO (1) | NO137543C (en) |
| SE (1) | SE390529B (en) |
| SU (1) | SU613710A3 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS578873Y2 (en) * | 1976-07-28 | 1982-02-19 | ||
| FR3138474B1 (en) | 2022-07-29 | 2024-06-14 | Psa Automobiles Sa | SYSTEM AND METHOD FOR DETECTING CLOGGING OF A HEAVY LOAD CHECK VALVE OF A THERMAL ENGINE, VEHICLE COMPRISING SUCH A SYSTEM |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE328266B (en) * | 1967-05-17 | 1970-09-14 | Mizusawa Industrial Chem |
-
1972
- 1972-11-25 JP JP47118342A patent/JPS5228117B2/ja not_active Expired
-
1973
- 1973-11-22 IT IT31656/73A patent/IT999487B/en active
- 1973-11-23 BE BE138100A patent/BE807728A/en unknown
- 1973-11-23 SE SE7315886A patent/SE390529B/en unknown
- 1973-11-23 CA CA186,615A patent/CA1015529A/en not_active Expired
- 1973-11-23 GB GB5459273A patent/GB1452136A/en not_active Expired
- 1973-11-23 NO NO4481/73A patent/NO137543C/en unknown
- 1973-11-23 SU SU731981004A patent/SU613710A3/en active
- 1973-11-24 ES ES420814A patent/ES420814A1/en not_active Expired
- 1973-11-24 IN IN2592/CAL/1973A patent/IN140714B/en unknown
- 1973-11-26 FR FR7342034A patent/FR2207861B1/fr not_active Expired
- 1973-11-26 DE DE2358780A patent/DE2358780C3/en not_active Expired
- 1973-11-26 NL NL7316156A patent/NL7316156A/xx not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| BE807728A (en) | 1974-03-15 |
| SU613710A3 (en) | 1978-06-30 |
| SE390529B (en) | 1976-12-27 |
| DE2358780B2 (en) | 1979-07-12 |
| FR2207861B1 (en) | 1977-08-12 |
| DE2358780C3 (en) | 1980-03-13 |
| IT999487B (en) | 1976-02-20 |
| NL7316156A (en) | 1974-05-28 |
| NO137543B (en) | 1977-12-05 |
| DE2358780A1 (en) | 1974-06-06 |
| ES420814A1 (en) | 1976-04-01 |
| JPS4976795A (en) | 1974-07-24 |
| IN140714B (en) | 1976-12-11 |
| FR2207861A1 (en) | 1974-06-21 |
| AU6285173A (en) | 1975-05-29 |
| JPS5228117B2 (en) | 1977-07-25 |
| CA1015529A (en) | 1977-08-16 |
| NO137543C (en) | 1978-03-15 |
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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 |