CA919384A - Process for the preparation of very pure cryolite from sodium fluosilicate and ammonia - Google Patents
Process for the preparation of very pure cryolite from sodium fluosilicate and ammoniaInfo
- Publication number
- CA919384A CA919384A CA052596A CA52596A CA919384A CA 919384 A CA919384 A CA 919384A CA 052596 A CA052596 A CA 052596A CA 52596 A CA52596 A CA 52596A CA 919384 A CA919384 A CA 919384A
- Authority
- CA
- Canada
- Prior art keywords
- ammonia
- preparation
- sodium fluosilicate
- pure cryolite
- cryolite
- 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
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/48—Halides, with or without other cations besides aluminium
- C01F7/50—Fluorides
- C01F7/54—Double compounds containing both aluminium and alkali metals or alkaline-earth metals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT1695168 | 1968-05-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA919384A true CA919384A (en) | 1973-01-23 |
Family
ID=11149579
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA052596A Expired CA919384A (en) | 1968-05-27 | 1969-05-26 | Process for the preparation of very pure cryolite from sodium fluosilicate and ammonia |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE733611A (en) |
CA (1) | CA919384A (en) |
DE (1) | DE1926626A1 (en) |
FR (1) | FR2009413B1 (en) |
GB (1) | GB1263310A (en) |
NL (1) | NL6907681A (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2750943A1 (en) * | 1977-11-15 | 1979-05-17 | Bayer Ag | METHOD FOR PURIFYING AMMONIUM FLUORIDE SOLUTIONS |
FR2432995A1 (en) * | 1978-08-08 | 1980-03-07 | Central Glass Co Ltd | PROCESS FOR THE PREPARATION OF HIGH PURITY CRYOLITH FROM A FLUORIDE SOLUTION CONTAINING DISSOLVED SILICA AND PRODUCT THUS OBTAINED |
CN104310450B (en) * | 2014-09-29 | 2016-08-17 | 湖南康盟环保科技有限公司 | Ammonia process produce produce during cryolite containing ammonia waste treatment method |
CN114291818A (en) * | 2021-03-17 | 2022-04-08 | 河南省氟基新材料科技有限公司 | Comprehensive utilization method of single cryolite and fluosilicate |
CN115259118A (en) * | 2021-04-30 | 2022-11-01 | 中国科学院过程工程研究所 | Method for separating phosphorus from phosphorus-containing fluorine-containing substance |
CN114314624A (en) * | 2021-12-29 | 2022-04-12 | 锦洋高新材料股份有限公司 | Method for removing impurity phosphorus in aluminum fluoride by fluorosilicic acid method |
CN115448345B (en) * | 2022-09-30 | 2023-08-29 | 湖南绿脉环保科技股份有限公司 | Method for harmless production of cryolite from overhaul slag |
CN116062941B (en) * | 2023-03-02 | 2023-09-08 | 北京神舟茂华环保科技有限公司 | Synergistic defluorination and dechlorination method for high-fluorine-content chlorine-containing wastewater in photovoltaic industry |
-
1969
- 1969-05-20 NL NL6907681A patent/NL6907681A/xx unknown
- 1969-05-26 CA CA052596A patent/CA919384A/en not_active Expired
- 1969-05-27 BE BE733611D patent/BE733611A/xx unknown
- 1969-05-27 FR FR6917186A patent/FR2009413B1/fr not_active Expired
- 1969-05-27 GB GB2679769A patent/GB1263310A/en not_active Expired
- 1969-05-30 DE DE19691926626 patent/DE1926626A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
NL6907681A (en) | 1969-12-01 |
GB1263310A (en) | 1972-02-09 |
BE733611A (en) | 1969-11-27 |
FR2009413A1 (en) | 1970-02-06 |
FR2009413B1 (en) | 1973-04-06 |
DE1926626A1 (en) | 1969-12-04 |
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