FR2234228B1 - - Google Patents
Info
- Publication number
- FR2234228B1 FR2234228B1 FR7421718A FR7421718A FR2234228B1 FR 2234228 B1 FR2234228 B1 FR 2234228B1 FR 7421718 A FR7421718 A FR 7421718A FR 7421718 A FR7421718 A FR 7421718A FR 2234228 B1 FR2234228 B1 FR 2234228B1
- Authority
- FR
- France
- 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
- C01B25/2343—Concentration concomitant with purification, e.g. elimination of fluorine
-
- 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)
- Silicon Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7021873A JPS5018388A (uk) | 1973-06-21 | 1973-06-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2234228A1 FR2234228A1 (uk) | 1975-01-17 |
| FR2234228B1 true FR2234228B1 (uk) | 1976-10-22 |
Family
ID=13425172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7421718A Expired FR2234228B1 (uk) | 1973-06-21 | 1974-06-21 |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5018388A (uk) |
| DE (1) | DE2429758A1 (uk) |
| FR (1) | FR2234228B1 (uk) |
| GB (1) | GB1442919A (uk) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS516894A (en) * | 1974-07-09 | 1976-01-20 | Toyo Soda Mfg Co Ltd | Seiseirinsanno seizoho |
| DE2538720C2 (de) * | 1975-08-30 | 1982-11-18 | Giulini Chemie Gmbh, 6700 Ludwigshafen | Verfahren zur Reinigung von Naßverfahrensphosphorsäure |
| JPS5297393A (en) * | 1976-02-13 | 1977-08-16 | Toyo Soda Mfg Co Ltd | Purification of extracted phosphoric acid |
| US4070443A (en) * | 1976-02-13 | 1978-01-24 | Toyo Soda Manufacturing Co., Ltd. | Process for removing sulfate ions from extracted phosphoric acid with a barium compound |
| JPS53105730U (uk) * | 1977-01-31 | 1978-08-25 | ||
| CA1124031A (en) * | 1978-03-30 | 1982-05-25 | Bruce D. Wells | Regeneration of activated carbon employed in the wet process production of phosphoric acid |
| US4250155A (en) * | 1978-06-09 | 1981-02-10 | Gardinier, Inc. | Method of purifying phosphoric acid after solvent extraction |
| FR2437377A1 (fr) * | 1978-09-29 | 1980-04-25 | Rhone Poulenc Ind | Procede d'obtention d'un acide phosphorique desulfate pour usage alimentaire |
| AU5545180A (en) * | 1979-02-21 | 1980-08-28 | Calgon Corporation | Purifying brown phosphoric acid |
| SE418845B (sv) | 1979-05-10 | 1981-06-29 | Boliden Ab | Forfarande for rening av vatprocessfosforsyra |
| DE2945874A1 (de) | 1979-11-14 | 1981-05-27 | Hoechst Ag, 6000 Frankfurt | Verfahren zur reinigung von nassverfahrenphosphorsaeure |
| JPS58125607A (ja) * | 1982-01-18 | 1983-07-26 | Toyo Soda Mfg Co Ltd | 湿式リン酸から有機物を除く方法 |
| FR2520342A1 (fr) * | 1982-01-25 | 1983-07-29 | Rhone Poulenc Chim Base | Procede de purification d'acide phosphorique de voie humide |
| US4495165A (en) * | 1983-10-03 | 1985-01-22 | Gurza Guillermo R | Method of purification of phosphoric acid |
| DE3444975A1 (de) * | 1984-12-10 | 1986-06-12 | Hoechst Ag, 6230 Frankfurt | Verfahren zur entarsenierung von phosphorsauren loesungen |
| DE3806822A1 (de) * | 1988-03-03 | 1989-09-14 | Hoechst Ag | Kontinuierliches verfahren zur vollstaendigen entferung organischer verunreinigungen und vollstaendiger entfaerbung vorgereinigter nassphosphorsaeure |
| CN103030124B (zh) * | 2011-12-16 | 2014-12-31 | 湖北兴发化工集团股份有限公司 | 一种利用中低品位磷矿制备食品级磷酸的方法 |
| CN103979510A (zh) * | 2014-04-25 | 2014-08-13 | 防城港博森化工有限公司 | 一种磷酸生产中的脱砷方法 |
| CN109795996A (zh) * | 2019-03-26 | 2019-05-24 | 陕西金禹科技发展有限公司 | 一种湿法磷酸硫化除砷净化装置及方法 |
| CN114804047A (zh) * | 2022-04-06 | 2022-07-29 | 瓮福（集团）有限责任公司 | 一种磷酸净化脱砷工艺 |
| CN115159482B (zh) * | 2022-07-28 | 2024-01-23 | 黄冈Tcl环境科技有限公司 | 一种通过废磷酸蚀刻液净化制备电子级磷酸的方法 |
| CN115924871B (zh) * | 2022-12-02 | 2023-09-15 | 上海太洋科技有限公司 | 一种光学级偏磷酸铜的制备方法 |
| CN116281910A (zh) * | 2023-01-10 | 2023-06-23 | 瓮福（集团）有限责任公司 | 一种利用湿法净化磷酸副产物制备饲料级磷酸氢钙的方法 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL295743A (uk) * | 1962-07-25 |
-
1973
- 1973-06-21 JP JP7021873A patent/JPS5018388A/ja active Pending
-
1974
- 1974-06-21 DE DE19742429758 patent/DE2429758A1/de active Pending
- 1974-06-21 FR FR7421718A patent/FR2234228B1/fr not_active Expired
- 1974-06-21 GB GB2778574A patent/GB1442919A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2234228A1 (uk) | 1975-01-17 |
| DE2429758A1 (de) | 1975-01-23 |
| JPS5018388A (uk) | 1975-02-26 |
| GB1442919A (en) | 1976-07-14 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |