CA1109635A - Purifying and defluorinating impure phosphoric acid - Google Patents
Purifying and defluorinating impure phosphoric acidInfo
- Publication number
- CA1109635A CA1109635A CA303,785A CA303785A CA1109635A CA 1109635 A CA1109635 A CA 1109635A CA 303785 A CA303785 A CA 303785A CA 1109635 A CA1109635 A CA 1109635A
- Authority
- CA
- Canada
- Prior art keywords
- phosphoric acid
- solution
- counter
- acid
- steam
- 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
- C01B25/234—Purification; Stabilisation; Concentration
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Extraction Or Liquid Replacement (AREA)
- Removal Of Specific Substances (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR77.15623 | 1977-05-23 | ||
FR7715623A FR2391954A2 (fr) | 1977-05-23 | 1977-05-23 | Procede de purification d'un acide phosphorique de voie humide |
FR7800771A FR2421845A2 (fr) | 1978-01-12 | 1978-01-12 | Procede de purification d'un acide phosphorique de voie humide |
FR78.00771 | 1978-01-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1109635A true CA1109635A (en) | 1981-09-29 |
Family
ID=26220035
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA303,785A Expired CA1109635A (en) | 1977-05-23 | 1978-05-19 | Purifying and defluorinating impure phosphoric acid |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS5413497A (ja) |
BR (1) | BR7803244A (ja) |
CA (1) | CA1109635A (ja) |
DE (1) | DE2822303B2 (ja) |
ES (1) | ES470068A1 (ja) |
GB (1) | GB1601428A (ja) |
IT (1) | IT1105409B (ja) |
NL (1) | NL7805497A (ja) |
PH (1) | PH13509A (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3325121A1 (de) * | 1983-07-12 | 1985-01-24 | Hoechst Ag, 6230 Frankfurt | Verfahren und vorrichtung zur entfernung von fluor und organischen verbindungen aus vorgefertigter nassverfahrensphosphorsaeure |
JPS60121733A (ja) * | 1984-07-31 | 1985-06-29 | Shinkawa Ltd | インナ−リ−ドボンダ− |
CN111874884B (zh) * | 2020-07-23 | 2023-08-04 | 湖北祥云(集团)化工股份有限公司 | 一种湿法磷酸的脱氟方法及系统 |
CN116374971A (zh) * | 2023-03-07 | 2023-07-04 | 湖北鄂中生态农业科技有限公司 | 磷酸的提纯方法 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5037158A (ja) * | 1973-08-10 | 1975-04-07 |
-
1978
- 1978-05-19 CA CA303,785A patent/CA1109635A/en not_active Expired
- 1978-05-22 NL NL7805497A patent/NL7805497A/xx not_active Application Discontinuation
- 1978-05-22 IT IT49488/78A patent/IT1105409B/it active
- 1978-05-22 BR BR7803244A patent/BR7803244A/pt unknown
- 1978-05-22 DE DE2822303A patent/DE2822303B2/de not_active Ceased
- 1978-05-22 ES ES470068A patent/ES470068A1/es not_active Expired
- 1978-05-22 JP JP6088878A patent/JPS5413497A/ja active Pending
- 1978-05-22 GB GB21075/78A patent/GB1601428A/en not_active Expired
- 1978-05-23 PH PH21180A patent/PH13509A/en unknown
Also Published As
Publication number | Publication date |
---|---|
NL7805497A (nl) | 1978-11-27 |
IT1105409B (it) | 1985-11-04 |
JPS5413497A (en) | 1979-01-31 |
PH13509A (en) | 1980-06-03 |
IT7849488A0 (it) | 1978-05-22 |
DE2822303B2 (de) | 1980-07-03 |
GB1601428A (en) | 1981-10-28 |
ES470068A1 (es) | 1979-09-16 |
BR7803244A (pt) | 1978-12-19 |
DE2822303A1 (de) | 1978-11-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKEX | Expiry |