GB1436113A - Purification of phosphoric acid - Google Patents
Purification of phosphoric acidInfo
- Publication number
- GB1436113A GB1436113A GB1947672A GB1947672A GB1436113A GB 1436113 A GB1436113 A GB 1436113A GB 1947672 A GB1947672 A GB 1947672A GB 1947672 A GB1947672 A GB 1947672A GB 1436113 A GB1436113 A GB 1436113A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phosphoric acid
- ketone
- phase
- contact
- brought
- 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
- C01B25/46—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
- C01B25/463—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 a ketone or a mixture of ketones
-
- 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
-
- 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
- C01B25/2343—Concentration concomitant with purification, e.g. elimination of fluorine
Abstract
The novel process is employed to produce purified phosphoric acid or purified phosphate from a phosphoric acid obtained according to the wet process. This involves bringing the acid into contact with a dialkyl ketone having 5 or 6 carbon atoms. Essentially, the weight ratio is from 0.5:1 to 2:1. The phosphoric acid is then extracted into the organic phase, so that a ketone phase is formed in which the H3PO4 concentration is from 28 to 40% by weight. The organic phase is then brought into contact with water or an aqueous solution of a base. An aqueous phase is thus obtained which contains phosphoric acid or a phosphate with a purity higher than that of the phosphoric acid employed obtained from the wet process. If a ketone having 5 carbon atoms is used, the ketone phase is brought into contact in counter-current with water in at least two stages.
Priority Applications (42)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1947672A GB1436113A (en) | 1972-04-26 | 1972-04-26 | Purification of phosphoric acid |
NO1639/73A NO137082C (en) | 1972-04-26 | 1973-04-17 | PROCEDURES FOR THE CLEANING OF R} PHOSPHORIC ACID PREPARED BY THE PROCESS |
IE614/73A IE37549B1 (en) | 1972-04-26 | 1973-04-18 | Purification of phosphoric acids |
ZA732725A ZA732725B (en) | 1972-04-26 | 1973-04-19 | Purification of phosphoric acid |
IL42065A IL42065A (en) | 1972-04-26 | 1973-04-19 | Purification of phosphoric acid |
US353876A US3914382A (en) | 1972-04-26 | 1973-04-23 | Purification of wet process phosphoric acid using methyl-iso-butyl ketone |
CA170,075A CA1004828A (en) | 1972-04-26 | 1973-04-24 | Purification of phosphoric acid |
DE2320877A DE2320877B2 (en) | 1972-04-26 | 1973-04-25 | Process for purifying wet phosphoric acid |
DE2365882A DE2365882B2 (en) | 1972-04-26 | 1973-04-25 | Process for the purification of a crude wet phosphoric acid by extraction with methyl isoburyl ketone |
NL7305765A NL7305765A (en) | 1972-04-26 | 1973-04-25 | |
ES414069A ES414069A1 (en) | 1972-04-26 | 1973-04-25 | Purification of phosphoric acid |
IN966/CAL/73A IN140334B (en) | 1972-04-26 | 1973-04-25 | |
TR18445A TR18445A (en) | 1972-04-26 | 1973-04-25 | DISPOSAL OF PHOSPHORIC ACIDS |
SE7305814A SE395263B (en) | 1972-04-26 | 1973-04-25 | WAY TO PURE PHOSPHORIC ACID |
FR7314935A FR2182055B1 (en) | 1972-04-26 | 1973-04-25 | |
DE2365883A DE2365883C3 (en) | 1972-04-26 | 1973-04-25 | Process for the purification of wet phosphoric acid by extraction |
BE130427A BE798737A (en) | 1972-04-26 | 1973-04-26 | PURIFICATION OF PHOSPHORIC ACIDS |
EG151/73A EG12694A (en) | 1972-04-26 | 1973-04-26 | Purification of phosphoric acid |
OA54887A OA04403A (en) | 1972-04-26 | 1973-04-26 | A process for the purification of phosphoric acid by wet process. |
JP48046871A JPS4999993A (en) | 1972-04-26 | 1973-04-26 | |
RO7374626A RO67820A (en) | 1972-04-26 | 1973-04-26 | PROCESS FOR THE PURIFICATION OF PHOSPHORIC ACID |
BR3025/73A BR7303025D0 (en) | 1972-04-26 | 1973-04-26 | PROCESS FOR PURIFICATION OF PHOSPHORIC ACIDS |
DD170600A DD109362A5 (en) | 1972-04-26 | 1973-04-26 | |
FI1342/73A FI59077C (en) | 1972-04-26 | 1973-04-26 | FOERFARANDE FOER RENING AV VAOTPROCESSFOSFORSYRA |
AU54884/73A AU485324B2 (en) | 1972-04-26 | 1973-04-26 | Purification of phosphoric acid |
CH599273A CH613916A5 (en) | 1972-04-26 | 1973-04-26 | Process for producing a purified phosphoric acid or a purified phosphate |
AT374373A AT361890B (en) | 1972-04-26 | 1973-04-26 | METHOD FOR PURIFYING PHOSPHORIC ACID |
RO7385793A RO69802A (en) | 1972-04-26 | 1973-04-26 | PROCESS FOR PURIFYING PHOSPHORIC ACID |
ES440618A ES440618A1 (en) | 1972-04-26 | 1975-09-01 | Purification of wet process phosphoric acid using methyl-iso-butyl ketone |
ES440617A ES440617A1 (en) | 1972-04-26 | 1975-09-01 | Purification of wet process phosphoric acid using methyl-iso-butyl ketone |
AU85994/75A AU8599475A (en) | 1972-04-26 | 1975-10-24 | Purification of phosphoric acid by solvent extraction |
FR7538023A FR2289442A1 (en) | 1972-04-26 | 1975-12-11 | METHOD FOR PURIFICATION OF PHOSPHORIC ACID BY WET WET |
FR7538022A FR2289441A1 (en) | 1972-04-26 | 1975-12-11 | METHOD FOR PURIFICATION OF PHOSPHORIC ACID BY WET WET |
NO760652A NO760652L (en) | 1972-04-26 | 1976-02-26 | |
IN420/CAL/76A IN143940B (en) | 1972-04-26 | 1976-03-09 | |
PH18509A PH13593A (en) | 1972-04-26 | 1976-06-02 | Purification of phosphoric acid by solvent extraction |
US05/716,371 US4127640A (en) | 1972-04-26 | 1976-08-23 | Purification of phosphoric acid by solvent extraction using hexanones |
CA267,812A CA1041733A (en) | 1972-04-26 | 1976-12-14 | Purification of phosphoric acid |
SE7702655A SE416799B (en) | 1972-04-26 | 1977-03-09 | SET TO MAKE A PURE WATER METHOD PHOSPHORIC ACID |
NO771071A NO141206C (en) | 1972-04-26 | 1977-03-25 | PROCEDURE FOR CLEANING RAW PHOSPHORIC ACID MANUFACTURED BY THE WATER PROCESS |
MY197885A MY7800085A (en) | 1972-04-26 | 1978-12-31 | Purification of phosphoric acid |
FI803070A FI803070A (en) | 1972-04-26 | 1980-09-29 | FOERFARANDE FOER RENING AV VAOTPROCESSFOSFORSYRA |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1947672A GB1436113A (en) | 1972-04-26 | 1972-04-26 | Purification of phosphoric acid |
GB4538072 | 1972-10-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1436113A true GB1436113A (en) | 1976-05-19 |
Family
ID=26254071
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1947672A Expired GB1436113A (en) | 1972-04-26 | 1972-04-26 | Purification of phosphoric acid |
Country Status (20)
Country | Link |
---|---|
JP (1) | JPS4999993A (en) |
AU (1) | AU8599475A (en) |
BE (1) | BE798737A (en) |
CA (1) | CA1004828A (en) |
CH (1) | CH613916A5 (en) |
DD (1) | DD109362A5 (en) |
DE (1) | DE2320877B2 (en) |
ES (1) | ES414069A1 (en) |
FI (1) | FI59077C (en) |
FR (3) | FR2182055B1 (en) |
GB (1) | GB1436113A (en) |
IE (1) | IE37549B1 (en) |
IN (1) | IN140334B (en) |
MY (1) | MY7800085A (en) |
NL (1) | NL7305765A (en) |
NO (1) | NO137082C (en) |
OA (1) | OA04403A (en) |
RO (2) | RO69802A (en) |
SE (1) | SE395263B (en) |
TR (1) | TR18445A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0010394A1 (en) * | 1978-10-10 | 1980-04-30 | Albright & Wilson Limited | Process for extracting uranium from phosphoric acid |
US4556548A (en) * | 1982-12-15 | 1985-12-03 | Hoechst Aktiengesellschaft | Process for purifying wet-processed phosphoric acid |
US4596703A (en) * | 1982-12-15 | 1986-06-24 | Hoechst Aktiengesellschaft | Process for purifying wet-processed phosphoric acid |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2543632A1 (en) * | 1974-10-07 | 1976-04-08 | Pennzoil Co | PROCESS FOR PREPARATION OF FLUORIDE-FREE PHOSPHATES |
JP2512429Y2 (en) * | 1993-07-12 | 1996-10-02 | 北陸電気工業株式会社 | High voltage resistance pack |
IT1285694B1 (en) * | 1996-05-08 | 1998-06-18 | Azionaria Costruzioni Acma Spa | METHOD AND UNIT FOR THE TRAINING AND CONVEYANCE OF GROUPS OF PRODUCTS |
DE19703884C2 (en) | 1997-02-03 | 1999-04-29 | Bk Giulini Chem Gmbh & Co Ohg | Process for purifying wet process phosphoric acid |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL298968A (en) | 1963-10-08 | |||
GB1142719A (en) * | 1968-10-24 | 1969-02-12 | Israel Mining Ind Inst For Res | Phosphoric acid recovery |
DE2334019C3 (en) * | 1973-07-04 | 1982-11-04 | Hoechst Ag, 6000 Frankfurt | Process for the purification of contaminated aqueous phosphoric acid |
-
1972
- 1972-04-26 GB GB1947672A patent/GB1436113A/en not_active Expired
-
1973
- 1973-04-17 NO NO1639/73A patent/NO137082C/en unknown
- 1973-04-18 IE IE614/73A patent/IE37549B1/en unknown
- 1973-04-24 CA CA170,075A patent/CA1004828A/en not_active Expired
- 1973-04-25 FR FR7314935A patent/FR2182055B1/fr not_active Expired
- 1973-04-25 NL NL7305765A patent/NL7305765A/xx not_active Application Discontinuation
- 1973-04-25 IN IN966/CAL/73A patent/IN140334B/en unknown
- 1973-04-25 SE SE7305814A patent/SE395263B/en unknown
- 1973-04-25 TR TR18445A patent/TR18445A/en unknown
- 1973-04-25 ES ES414069A patent/ES414069A1/en not_active Expired
- 1973-04-25 DE DE2320877A patent/DE2320877B2/en not_active Ceased
- 1973-04-26 CH CH599273A patent/CH613916A5/en not_active IP Right Cessation
- 1973-04-26 JP JP48046871A patent/JPS4999993A/ja active Pending
- 1973-04-26 DD DD170600A patent/DD109362A5/xx unknown
- 1973-04-26 BE BE130427A patent/BE798737A/en unknown
- 1973-04-26 OA OA54887A patent/OA04403A/en unknown
- 1973-04-26 RO RO7385793A patent/RO69802A/en unknown
- 1973-04-26 RO RO7374626A patent/RO67820A/en unknown
- 1973-04-26 FI FI1342/73A patent/FI59077C/en active
-
1975
- 1975-10-24 AU AU85994/75A patent/AU8599475A/en not_active Expired
- 1975-12-11 FR FR7538022A patent/FR2289441A1/en active Granted
- 1975-12-11 FR FR7538023A patent/FR2289442A1/en active Granted
-
1978
- 1978-12-31 MY MY197885A patent/MY7800085A/en unknown
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0010394A1 (en) * | 1978-10-10 | 1980-04-30 | Albright & Wilson Limited | Process for extracting uranium from phosphoric acid |
US4382066A (en) | 1978-10-10 | 1983-05-03 | Albright & Wilson Limited | Uranium extraction process |
US4556548A (en) * | 1982-12-15 | 1985-12-03 | Hoechst Aktiengesellschaft | Process for purifying wet-processed phosphoric acid |
US4596703A (en) * | 1982-12-15 | 1986-06-24 | Hoechst Aktiengesellschaft | Process for purifying wet-processed phosphoric acid |
Also Published As
Publication number | Publication date |
---|---|
DD109362A5 (en) | 1974-11-05 |
AU8599475A (en) | 1975-12-18 |
AU5488473A (en) | 1974-10-31 |
IE37549B1 (en) | 1977-08-17 |
NO137082C (en) | 1977-12-28 |
TR18445A (en) | 1977-02-16 |
RO69802A (en) | 1983-07-07 |
DE2320877A1 (en) | 1973-11-15 |
CH613916A5 (en) | 1979-10-31 |
RO67820A (en) | 1980-01-15 |
CA1004828A (en) | 1977-02-08 |
FR2182055A1 (en) | 1973-12-07 |
IE37549L (en) | 1973-10-26 |
SE395263B (en) | 1977-08-08 |
DE2320877B2 (en) | 1980-03-20 |
NL7305765A (en) | 1973-10-30 |
MY7800085A (en) | 1978-12-31 |
IN140334B (en) | 1976-10-16 |
BE798737A (en) | 1973-10-26 |
FR2289441A1 (en) | 1976-05-28 |
RO69802B (en) | 1983-06-30 |
ES414069A1 (en) | 1976-05-16 |
OA04403A (en) | 1980-02-29 |
JPS4999993A (en) | 1974-09-20 |
FR2182055B1 (en) | 1977-01-07 |
FI59077C (en) | 1981-06-10 |
FR2289442B1 (en) | 1979-02-02 |
NO137082B (en) | 1977-09-19 |
FR2289441B1 (en) | 1979-02-02 |
FR2289442A1 (en) | 1976-05-28 |
FI59077B (en) | 1981-02-27 |
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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 |