FR2629812B1 - Procede d'elimination des metaux lourds, et notamment du cadmium, contenus dans l'acide phosphorique - Google Patents
Procede d'elimination des metaux lourds, et notamment du cadmium, contenus dans l'acide phosphoriqueInfo
- Publication number
- FR2629812B1 FR2629812B1 FR8804804A FR8804804A FR2629812B1 FR 2629812 B1 FR2629812 B1 FR 2629812B1 FR 8804804 A FR8804804 A FR 8804804A FR 8804804 A FR8804804 A FR 8804804A FR 2629812 B1 FR2629812 B1 FR 2629812B1
- Authority
- FR
- France
- Prior art keywords
- removal
- contained
- phosphoric acid
- heavy metals
- especially cadmium
- 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 - Fee Related
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
-
- 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
- C01B25/462—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 alcohol or a mixture of alcohols
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8804804A FR2629812B1 (fr) | 1988-04-12 | 1988-04-12 | Procede d'elimination des metaux lourds, et notamment du cadmium, contenus dans l'acide phosphorique |
MA21705A MA21462A1 (fr) | 1988-04-12 | 1988-12-29 | Procede d'elimination des metaux lourds et notamment du cadmium, contenus dans l'acide phosphorique. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8804804A FR2629812B1 (fr) | 1988-04-12 | 1988-04-12 | Procede d'elimination des metaux lourds, et notamment du cadmium, contenus dans l'acide phosphorique |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2629812A1 FR2629812A1 (fr) | 1989-10-13 |
FR2629812B1 true FR2629812B1 (fr) | 1991-01-25 |
Family
ID=9365212
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8804804A Expired - Fee Related FR2629812B1 (fr) | 1988-04-12 | 1988-04-12 | Procede d'elimination des metaux lourds, et notamment du cadmium, contenus dans l'acide phosphorique |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR2629812B1 (fr) |
MA (1) | MA21462A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5242061B2 (ja) * | 2007-02-08 | 2013-07-24 | 日本リファイン株式会社 | 複数の金属イオンを含むリン酸水溶液から精製リン酸を得る方法及び装置 |
CN109205905A (zh) * | 2018-10-19 | 2019-01-15 | 东莞理工学院 | 一种重金属废水的处理方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3529932A (en) * | 1966-10-31 | 1970-09-22 | Toyo Soda Mfg Co Ltd | Process for removing titanium from titanium-containing phosphoric acid |
DE3273369D1 (en) * | 1981-10-28 | 1986-10-23 | Hoechst Ag | Process for separating heavy metal values from intermediate products in the manufacture of phosphatic fertilizers |
FR2520342A1 (fr) * | 1982-01-25 | 1983-07-29 | Rhone Poulenc Chim Base | Procede de purification d'acide phosphorique de voie humide |
-
1988
- 1988-04-12 FR FR8804804A patent/FR2629812B1/fr not_active Expired - Fee Related
- 1988-12-29 MA MA21705A patent/MA21462A1/fr unknown
Also Published As
Publication number | Publication date |
---|---|
MA21462A1 (fr) | 1989-07-01 |
FR2629812A1 (fr) | 1989-10-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |