FR2629811B1 - PROCESS FOR OBTAINING A FLUORHYDRIC ACID SOLUTION FROM A HEXAFLUOROSILICIC ACID SOLUTION AND DEVICE FOR ITS IMPLEMENTATION - Google Patents
PROCESS FOR OBTAINING A FLUORHYDRIC ACID SOLUTION FROM A HEXAFLUOROSILICIC ACID SOLUTION AND DEVICE FOR ITS IMPLEMENTATIONInfo
- Publication number
- FR2629811B1 FR2629811B1 FR8804739A FR8804739A FR2629811B1 FR 2629811 B1 FR2629811 B1 FR 2629811B1 FR 8804739 A FR8804739 A FR 8804739A FR 8804739 A FR8804739 A FR 8804739A FR 2629811 B1 FR2629811 B1 FR 2629811B1
- Authority
- FR
- France
- Prior art keywords
- acid solution
- implementation
- obtaining
- fluorhydric
- hexafluorosilicic
- 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
- C01B7/00—Halogens; Halogen acids
- C01B7/19—Fluorine; Hydrogen fluoride
- C01B7/191—Hydrogen fluoride
- C01B7/193—Preparation from silicon tetrafluoride, fluosilicic acid or fluosilicates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/19—Fluorine; Hydrogen fluoride
- C01B7/191—Hydrogen fluoride
- C01B7/194—Preparation from ammonium fluoride
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/24—Halogens or compounds thereof
- C25B1/245—Fluorine; Compounds thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8804739A FR2629811B1 (en) | 1988-04-06 | 1988-04-06 | PROCESS FOR OBTAINING A FLUORHYDRIC ACID SOLUTION FROM A HEXAFLUOROSILICIC ACID SOLUTION AND DEVICE FOR ITS IMPLEMENTATION |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8804739A FR2629811B1 (en) | 1988-04-06 | 1988-04-06 | PROCESS FOR OBTAINING A FLUORHYDRIC ACID SOLUTION FROM A HEXAFLUOROSILICIC ACID SOLUTION AND DEVICE FOR ITS IMPLEMENTATION |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2629811A1 FR2629811A1 (en) | 1989-10-13 |
FR2629811B1 true FR2629811B1 (en) | 1991-05-17 |
Family
ID=9365161
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8804739A Expired - Fee Related FR2629811B1 (en) | 1988-04-06 | 1988-04-06 | PROCESS FOR OBTAINING A FLUORHYDRIC ACID SOLUTION FROM A HEXAFLUOROSILICIC ACID SOLUTION AND DEVICE FOR ITS IMPLEMENTATION |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2629811B1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2720061B1 (en) * | 1994-05-20 | 1996-08-02 | Rhone Poulenc Chimie | Process for upgrading an acidic liquid effluent containing heavy metals. |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3450609A (en) * | 1966-03-14 | 1969-06-17 | Ppg Industries Inc | Electrolytic process for preparing hydrogen fluoride |
US4389293A (en) * | 1982-01-04 | 1983-06-21 | Allied Corporation | Process for the recovery of anhydrous hydrogen fluoride from aqueous solutions of fluosilicic acid and hydrogen fluoride |
US4599156A (en) * | 1985-09-27 | 1986-07-08 | International Minerals & Chemical Corp. | Electrodialysis process for preparing hydrogen fluoride |
-
1988
- 1988-04-06 FR FR8804739A patent/FR2629811B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FR2629811A1 (en) | 1989-10-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |