GB1240285A - Purification of phosphoric acid - Google Patents
Purification of phosphoric acidInfo
- Publication number
- GB1240285A GB1240285A GB46064/68A GB4606468A GB1240285A GB 1240285 A GB1240285 A GB 1240285A GB 46064/68 A GB46064/68 A GB 46064/68A GB 4606468 A GB4606468 A GB 4606468A GB 1240285 A GB1240285 A GB 1240285A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ether
- phosphoric acid
- acid
- mixture
- ethyl
- 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 20
- 229910000147 aluminium phosphate Inorganic materials 0.000 title abstract 10
- 238000000746 purification Methods 0.000 title 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 abstract 14
- 235000011007 phosphoric acid Nutrition 0.000 abstract 10
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 abstract 6
- 239000000203 mixture Substances 0.000 abstract 6
- 239000002904 solvent Substances 0.000 abstract 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 5
- 235000011149 sulphuric acid Nutrition 0.000 abstract 5
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 abstract 4
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 abstract 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract 4
- 239000001117 sulphuric acid Substances 0.000 abstract 4
- ZAFNJMIOTHYJRJ-UHFFFAOYSA-N Diisopropyl ether Chemical compound CC(C)OC(C)C ZAFNJMIOTHYJRJ-UHFFFAOYSA-N 0.000 abstract 3
- 239000002253 acid Substances 0.000 abstract 3
- 239000012071 phase Substances 0.000 abstract 3
- 239000008346 aqueous phase Substances 0.000 abstract 2
- 238000000605 extraction Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- HNAGHMKIPMKKBB-UHFFFAOYSA-N 1-benzylpyrrolidine-3-carboxamide Chemical compound C1C(C(=O)N)CCN1CC1=CC=CC=C1 HNAGHMKIPMKKBB-UHFFFAOYSA-N 0.000 abstract 1
- PTTPXKJBFFKCEK-UHFFFAOYSA-N 2-Methyl-4-heptanone Chemical compound CC(C)CC(=O)CC(C)C PTTPXKJBFFKCEK-UHFFFAOYSA-N 0.000 abstract 1
- CRWNQZTZTZWPOF-UHFFFAOYSA-N 2-methyl-4-phenylpyridine Chemical compound C1=NC(C)=CC(C=2C=CC=CC=2)=C1 CRWNQZTZTZWPOF-UHFFFAOYSA-N 0.000 abstract 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 abstract 1
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Natural products CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 abstract 1
- 229910019142 PO4 Inorganic materials 0.000 abstract 1
- VSTOHTVURMFCGL-UHFFFAOYSA-N [C].O=[Si]=O Chemical compound [C].O=[Si]=O VSTOHTVURMFCGL-UHFFFAOYSA-N 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229940072049 amyl acetate Drugs 0.000 abstract 1
- PGMYKACGEOXYJE-UHFFFAOYSA-N anhydrous amyl acetate Natural products CCCCCOC(C)=O PGMYKACGEOXYJE-UHFFFAOYSA-N 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- OBNCKNCVKJNDBV-UHFFFAOYSA-N butanoic acid ethyl ester Natural products CCCC(=O)OCC OBNCKNCVKJNDBV-UHFFFAOYSA-N 0.000 abstract 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 abstract 1
- 229940043430 calcium compound Drugs 0.000 abstract 1
- 150000001674 calcium compounds Chemical class 0.000 abstract 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 abstract 1
- 239000000920 calcium hydroxide Substances 0.000 abstract 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 abstract 1
- 235000011116 calcium hydroxide Nutrition 0.000 abstract 1
- 239000001506 calcium phosphate Substances 0.000 abstract 1
- 235000011010 calcium phosphates Nutrition 0.000 abstract 1
- 239000004927 clay Substances 0.000 abstract 1
- 238000011161 development Methods 0.000 abstract 1
- 150000002148 esters Chemical class 0.000 abstract 1
- 150000002170 ethers Chemical class 0.000 abstract 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 abstract 1
- -1 glycol ethers Chemical class 0.000 abstract 1
- MNWFXJYAOYHMED-UHFFFAOYSA-M heptanoate Chemical compound CCCCCCC([O-])=O MNWFXJYAOYHMED-UHFFFAOYSA-M 0.000 abstract 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 238000010348 incorporation Methods 0.000 abstract 1
- 150000002576 ketones Chemical class 0.000 abstract 1
- 238000005065 mining Methods 0.000 abstract 1
- 239000002367 phosphate rock Substances 0.000 abstract 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 abstract 1
- 238000011160 research Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 238000000638 solvent extraction Methods 0.000 abstract 1
- 238000013517 stratification Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Extraction Or Liquid Replacement (AREA)
Abstract
1,240,285. Phosphoric acid. ISRAEL MINING INDUSTRIES - INSTITUTE FOR RESEARCH & DEVELOPMENT. 27 Sept., 1968 [27 Nov., 1967], No. 46064/68. Addition to 1,112,033. Heading C1A. A process for recovering phosphoric acid from technical grade phosphoric acid comprises treating technical grade phosphoric acid with a mixture of at least two extracting solvents of the kind defined in Specification 1,112,033, the temperature of the treatment being low enough for the formation of a clear homogeneous extract phase distinct from a residual aqueous phase, separating the extract phase from the aqueous phase, raising the temperature of the extract phase to that at which it separates into a lower layer containing phosphoric acid and an upper layer containing the solvents and separating the lower layer from the upper layer. The solvents are for example esters, ketones, glycol ethers and ethers, such as ethyl, butyl and amyl acetate, ethyl butyrate and cyclohexanone. Stratification is enhanced by the addition of a small amount of water or purified phosphoric acid. The yield is increased by incorporation of sulphuric acid in amount e.g. from 0À1 to 5% in the technical grade acid. The residual acid, after separation of the solvent extract may be acidified with sulphuric acid in amount 30 to 100% by weight of the phosphoric acid and subjected to a repeated extraction with one or mixture of extracting solvents and a mixture of purified phosphoric and sulphuric acids is recovered. Impurities in the original acid can be removed by addition of alumina, calcium compounds, active carbon silicon dioxide or active clay prior to the solvent extraction. Calcium hydroxide or phosphates and phosphate rock can be added to the feed phosphoric acid to neutralize free sulphuric acid present. In examples the solvents used are (1) ethyl ether and nbutyl ether; (2) n-butyl ether and dibutyl ether of ethylene glycol; (3) isopropyl ether and ethyl ether; (4) isopropyl ether and cyclohexanone; (5) ethyl ether and diethylene glycol mono nhexyl ether; (6) mixed diethylene glycol mono- and di-n-butyl ethers; (7) diethylene glycol dibutyl ether and diisobutyl ketone. In example (8) a residual fraction from the extraction of technical grade phosphoric acid with a mixture of n-butyl ether and ethyl ether in a process similar to example, is acidified with concentrated sulphuric acid and the mixture is extracted with a mixture of isopropyl ether and ethyl ether.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IL2902367A IL29023A (en) | 1967-11-27 | 1967-11-27 | Purification of phosphoric acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1240285A true GB1240285A (en) | 1971-07-21 |
Family
ID=11044303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB46064/68A Expired GB1240285A (en) | 1967-11-27 | 1968-09-27 | Purification of phosphoric acid |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB1240285A (en) |
| IL (1) | IL29023A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3103341A (en) * | 1960-12-19 | 1963-09-10 | North American Aviation Inc | Flush mounted plug valve |
| US4048289A (en) * | 1973-12-13 | 1977-09-13 | Fertilizantes Fosfatados Mexicanos, S.A. | Stabilization of wet-process phosphoric acid |
| US4118462A (en) * | 1974-02-01 | 1978-10-03 | Rhone-Poulenc Industries | Process for the preparation of purified phosphoric solutions from phosphoric acid |
| US4127640A (en) * | 1972-04-26 | 1978-11-28 | Albright & Wilson Ltd. | Purification of phosphoric acid by solvent extraction using hexanones |
| RU2315709C1 (en) * | 2006-08-08 | 2008-01-27 | Закрытое акционерное общество "Научно-производственная компания "Интерфос" | Method of production of purified phosphoric acid |
| EP2924003A1 (en) * | 2014-03-26 | 2015-09-30 | Maxbiogas GmbH | Method for purifying phosphoric acid |
| CN117547861A (en) * | 2023-12-27 | 2024-02-13 | 昆明红海磷肥有限责任公司 | Purifying and separating device and method for raffinate phosphoric acid and slag-containing phosphoric acid |
| CN117720079A (en) * | 2023-12-11 | 2024-03-19 | 安徽金轩科技有限公司 | High-efficiency impurity removal method and system for phosphoric acid |
-
1967
- 1967-11-27 IL IL2902367A patent/IL29023A/en unknown
-
1968
- 1968-09-27 GB GB46064/68A patent/GB1240285A/en not_active Expired
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3103341A (en) * | 1960-12-19 | 1963-09-10 | North American Aviation Inc | Flush mounted plug valve |
| US4127640A (en) * | 1972-04-26 | 1978-11-28 | Albright & Wilson Ltd. | Purification of phosphoric acid by solvent extraction using hexanones |
| US4048289A (en) * | 1973-12-13 | 1977-09-13 | Fertilizantes Fosfatados Mexicanos, S.A. | Stabilization of wet-process phosphoric acid |
| US4118462A (en) * | 1974-02-01 | 1978-10-03 | Rhone-Poulenc Industries | Process for the preparation of purified phosphoric solutions from phosphoric acid |
| RU2315709C1 (en) * | 2006-08-08 | 2008-01-27 | Закрытое акционерное общество "Научно-производственная компания "Интерфос" | Method of production of purified phosphoric acid |
| WO2015144321A1 (en) * | 2014-03-26 | 2015-10-01 | Maxbiogas Gmbh | Method for purifying phosphoric acid |
| EP2924003A1 (en) * | 2014-03-26 | 2015-09-30 | Maxbiogas GmbH | Method for purifying phosphoric acid |
| CN106103341A (en) * | 2014-03-26 | 2016-11-09 | Lxp集团有限公司 | Method for purifying phosphoric acid |
| CN106103341B (en) * | 2014-03-26 | 2019-07-02 | Lxp集团有限公司 | Method for purifying phosphoric acid |
| US10577245B2 (en) * | 2014-03-26 | 2020-03-03 | Lxp Group Gmbh | Method for purifying phosphoric acid |
| CN117720079A (en) * | 2023-12-11 | 2024-03-19 | 安徽金轩科技有限公司 | High-efficiency impurity removal method and system for phosphoric acid |
| CN117720079B (en) * | 2023-12-11 | 2024-05-17 | 安徽金轩科技有限公司 | High-efficiency impurity removal method and system for phosphoric acid |
| CN117547861A (en) * | 2023-12-27 | 2024-02-13 | 昆明红海磷肥有限责任公司 | Purifying and separating device and method for raffinate phosphoric acid and slag-containing phosphoric acid |
| CN117547861B (en) * | 2023-12-27 | 2024-04-02 | 昆明红海磷肥有限责任公司 | Purifying and separating device and method for raffinate phosphoric acid and slag-containing phosphoric acid |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1801856A1 (en) | 1969-08-07 |
| IL29023A (en) | 1971-05-26 |
| DE1801856B2 (en) | 1977-01-27 |
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