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 ammonia

Info

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
Application number
CA052596A
Inventor
Muratori Giuseppe
Saccardo Pietro
Cuneo Giovanni
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Montedison SpA
Original Assignee
Montecatini Edison SpA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Montecatini Edison SpA filed Critical Montecatini Edison SpA
Application granted granted Critical
Publication of CA919384A publication Critical patent/CA919384A/en
Expired legal-status Critical Current

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
CA052596A 1968-05-27 1969-05-26 Process for the preparation of very pure cryolite from sodium fluosilicate and ammonia Expired CA919384A (en)

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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
NL6907681A (en) 1969-12-01
FR2009413A1 (en) 1970-02-06
DE1926626A1 (en) 1969-12-04
FR2009413B1 (en) 1973-04-06
GB1263310A (en) 1972-02-09
BE733611A (en) 1969-11-27

Similar Documents

Publication Publication Date Title
CA918669A (en) Process for the preparation of benzindenes
IL31966A0 (en) Process for the preparation of andriamycin and adriamycinone
CA919384A (en) Process for the preparation of very pure cryolite from sodium fluosilicate and ammonia
IL31200A0 (en) Derivatives of 2-cycloalkyl-1-hydronaphthalenes and process for preparation of the same
CA922690A (en) Process for the preparation of cardenolide- and bufadienolide-3-(glycoside-di-alkylorthocarbonates)
IL32953A (en) Process for the preparation of delta3-thiazolines
CA931323A (en) Process for the hydration of sodium tripolyphosphate
CA918888A (en) Process for the purification of sodium silicofluoride
IL35163A (en) Process for the preparation of 3-halomethyl-cephalosporins and some such compounds
CA928298A (en) Process for the preparation of 3-alkylflavanones
CA784260A (en) Process for the preparation of urea
CA789463A (en) Process for the preparation of tetrafluorohydrazine
CA940918A (en) 6-carboxy-19-norsteroids and process for the preparation of 19-nor-steroids
CA780450A (en) Process for the preparation of pyrazolyltetraazadiborines and triazolyltetraazadiborines
CA786377A (en) Process for the preparation of alpha substituted alkanedinitriles
CA818474A (en) Process for the preparation of anhydrous hydrazine
CA932929A (en) Process for the preparation of cyanogen chloride
AU444087B2 (en) Process for the preparation of sodium glucoheptonate
CA797139A (en) Process for the preparation of pure ammonium phosphate
CA843314A (en) Preparing mixtures of alkali metal dichloroisocyanurate and sodium tripolyphosphate
CA779884A (en) Process for the preparation of diphenylalkylamines
AU447701B2 (en) Process for the preparation of n-tritylimidazoles
CA779320A (en) Process for the preparation of hexa-organo-distannoxanes
CA781514A (en) Process for the preparation of diorganohalophosphines
AU294987B2 (en) Process for the preparation of 19-hydroxy-steroids