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
Other languages
English (en)
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

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)
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 (de)
CA (1) CA919384A (de)
DE (1) DE1926626A1 (de)
FR (1) FR2009413B1 (de)
GB (1) GB1263310A (de)
NL (1) NL6907681A (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2750943A1 (de) * 1977-11-15 1979-05-17 Bayer Ag Verfahren zur reinigung von ammoniumfluoridloesungen
FR2432995A1 (fr) * 1978-08-08 1980-03-07 Central Glass Co Ltd Procede de preparation de cryolithe de grande purete a partir d'une solution de fluorure contenant de la silice dissoute et produit ainsi obtenu
CN104310450B (zh) * 2014-09-29 2016-08-17 湖南康盟环保科技有限公司 氨法生产冰晶石过程中产生的含氨废物处理方法
CN114291818A (zh) * 2021-03-17 2022-04-08 河南省氟基新材料科技有限公司 一种单冰晶石和氟硅酸盐的综合利用方法
CN115259118A (zh) * 2021-04-30 2022-11-01 中国科学院过程工程研究所 一种从含磷含氟物质中分离磷的方法
CN114314624A (zh) * 2021-12-29 2022-04-12 锦洋高新材料股份有限公司 一种去除氟硅酸法氟化铝中杂质磷的方法
CN115448345B (zh) * 2022-09-30 2023-08-29 湖南绿脉环保科技股份有限公司 一种大修渣无害化生产冰晶石的方法
CN116062941B (zh) * 2023-03-02 2023-09-08 北京神舟茂华环保科技有限公司 一种光伏行业高含氟含氯废水的协同除氟脱氯的方法

Also Published As

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

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