GB1323743A - Process for purifying phosphoric acid obtained by the wet method and for simultaneously obtaining a phosphate by-product useful as a fertilizer - Google Patents
Process for purifying phosphoric acid obtained by the wet method and for simultaneously obtaining a phosphate by-product useful as a fertilizerInfo
- Publication number
- GB1323743A GB1323743A GB4070470A GB4070470A GB1323743A GB 1323743 A GB1323743 A GB 1323743A GB 4070470 A GB4070470 A GB 4070470A GB 4070470 A GB4070470 A GB 4070470A GB 1323743 A GB1323743 A GB 1323743A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phosphoric acid
- solvent
- phosphate
- fertilizer
- give
- 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
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 title abstract 8
- 229910000147 aluminium phosphate Inorganic materials 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 3
- 229910019142 PO4 Inorganic materials 0.000 title 1
- 239000006227 byproduct Substances 0.000 title 1
- 239000003337 fertilizer Substances 0.000 title 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 title 1
- 239000010452 phosphate Substances 0.000 title 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract 3
- 239000002904 solvent Substances 0.000 abstract 3
- 125000002091 cationic group Chemical group 0.000 abstract 1
- 238000010924 continuous production Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229910000402 monopotassium phosphate Inorganic materials 0.000 abstract 1
- 235000019796 monopotassium phosphate Nutrition 0.000 abstract 1
- GNSKLFRGEWLPPA-UHFFFAOYSA-M potassium dihydrogen phosphate Chemical compound [K+].OP(O)([O-])=O GNSKLFRGEWLPPA-UHFFFAOYSA-M 0.000 abstract 1
- LWIHDJKSTIGBAC-UHFFFAOYSA-K potassium phosphate Substances [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
-
- 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)
Abstract
1323743 Purification of phosphoric acid and monopotassium phosphate PRODUITS CHIMIQUES ET METALLURGIQUES DU RUPEL 24 August 1970 [22 Aug 1969] 40704/70 Heading C1A Wet process phosphoric acid is purified by (a) reacting with KC1 where the molar ratio of KCl to H 3 PO 4 is less than one to give HCl + KH 2 PO 4 . H 3 PO 4 at an absolute pressure below 260 mm. at below 120 C. and (b) decomposing the complex into H 3 PO 4 and KH 2 PO 4 in the presence of a solvent (e.g. methanol) with which H 3 PO 4 is miscible but with which KH 2 PO 4 is insoluble and separating the H 3 PO 4 solution from the mixture. The solvent can then be removed to give purified H 3 PO 4 or the solution can be passed through a cationic exchange resin to give after removal of the solvent a more highly purified phosphoric acid. Different reactors at different temperatures and pressures may be used in series in a continuous process.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR6928841A FR2056042A5 (en) | 1969-08-22 | 1969-08-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1323743A true GB1323743A (en) | 1973-07-18 |
Family
ID=9039304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4070470A Expired GB1323743A (en) | 1969-08-22 | 1970-08-24 | Process for purifying phosphoric acid obtained by the wet method and for simultaneously obtaining a phosphate by-product useful as a fertilizer |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE754920A (en) |
| DE (1) | DE2041394A1 (en) |
| FR (1) | FR2056042A5 (en) |
| GB (1) | GB1323743A (en) |
| IL (1) | IL35137A (en) |
| NL (1) | NL7012443A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103523763A (en) * | 2013-10-11 | 2014-01-22 | 徐州天正活性炭厂 | Energy saving apparatus and method for rapid concentration of dilute phosphoric acid |
| CN104326458A (en) * | 2014-09-19 | 2015-02-04 | 贵州大学 | Production method for preparing monopotassium phosphate and by-product special fertilizer for strawberry |
| CN110980675A (en) * | 2019-12-30 | 2020-04-10 | 南京乐透思环保科技有限公司 | Defluorination method of wet-process phosphoric acid |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2264774B1 (en) * | 1974-03-19 | 1977-06-17 | Azote & Prod Chim |
-
0
- BE BE754920D patent/BE754920A/en unknown
-
1969
- 1969-08-22 FR FR6928841A patent/FR2056042A5/fr not_active Expired
-
1970
- 1970-08-20 IL IL35137A patent/IL35137A/en unknown
- 1970-08-20 DE DE19702041394 patent/DE2041394A1/en active Pending
- 1970-08-21 NL NL7012443A patent/NL7012443A/xx not_active Application Discontinuation
- 1970-08-24 GB GB4070470A patent/GB1323743A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103523763A (en) * | 2013-10-11 | 2014-01-22 | 徐州天正活性炭厂 | Energy saving apparatus and method for rapid concentration of dilute phosphoric acid |
| CN103523763B (en) * | 2013-10-11 | 2017-04-05 | 徐州天正活性炭厂 | A kind of energy saver and method of rapid concentration of dilute phosphoric acid |
| CN104326458A (en) * | 2014-09-19 | 2015-02-04 | 贵州大学 | Production method for preparing monopotassium phosphate and by-product special fertilizer for strawberry |
| CN110980675A (en) * | 2019-12-30 | 2020-04-10 | 南京乐透思环保科技有限公司 | Defluorination method of wet-process phosphoric acid |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2041394A1 (en) | 1971-02-25 |
| FR2056042A5 (en) | 1971-05-14 |
| IL35137A0 (en) | 1970-10-30 |
| BE754920A (en) | 1971-02-01 |
| NL7012443A (en) | 1971-02-24 |
| IL35137A (en) | 1974-07-31 |
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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 |