NL170402C - METHOD FOR THE CONVERSION OF WASTES CONTAINING SILICON AND FLUOROUS COMPOUNDS. - Google Patents

METHOD FOR THE CONVERSION OF WASTES CONTAINING SILICON AND FLUOROUS COMPOUNDS.

Info

Publication number
NL170402C
NL170402C NL7214517A NL7214517A NL170402C NL 170402 C NL170402 C NL 170402C NL 7214517 A NL7214517 A NL 7214517A NL 7214517 A NL7214517 A NL 7214517A NL 170402 C NL170402 C NL 170402C
Authority
NL
Netherlands
Prior art keywords
conversion
containing silicon
wastes containing
fluorous compounds
fluorous
Prior art date
Application number
NL7214517A
Other languages
Dutch (nl)
Other versions
NL170402B (en
NL7214517A (en
Original Assignee
Flemmert Goesta Lennart
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 Flemmert Goesta Lennart filed Critical Flemmert Goesta Lennart
Publication of NL7214517A publication Critical patent/NL7214517A/xx
Publication of NL170402B publication Critical patent/NL170402B/en
Application granted granted Critical
Publication of NL170402C publication Critical patent/NL170402C/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/113—Silicon oxides; Hydrates thereof
    • C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
    • C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
    • C01B33/181—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by a dry process
    • C01B33/183—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by a dry process by oxidation or hydrolysis in the vapour phase of silicon compounds such as halides, trichlorosilane, monosilane
    • C01B33/184—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by a dry process by oxidation or hydrolysis in the vapour phase of silicon compounds such as halides, trichlorosilane, monosilane by hydrolysis of tetrafluoride
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Treating Waste Gases (AREA)
  • Silicon Compounds (AREA)
NL7214517A 1971-10-28 1972-10-26 METHOD FOR THE CONVERSION OF WASTES CONTAINING SILICON AND FLUOROUS COMPOUNDS. NL170402C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19346771A 1971-10-28 1971-10-28

Publications (3)

Publication Number Publication Date
NL7214517A NL7214517A (en) 1973-05-02
NL170402B NL170402B (en) 1982-06-01
NL170402C true NL170402C (en) 1982-11-01

Family

ID=22713763

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7214517A NL170402C (en) 1971-10-28 1972-10-26 METHOD FOR THE CONVERSION OF WASTES CONTAINING SILICON AND FLUOROUS COMPOUNDS.

Country Status (8)

Country Link
BE (1) BE790472A (en)
CA (1) CA979179A (en)
DE (1) DE2251787C2 (en)
FR (1) FR2158314B1 (en)
GB (1) GB1413333A (en)
IT (1) IT975395B (en)
NL (1) NL170402C (en)
SE (1) SE396060B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3206766A1 (en) * 1982-02-25 1983-09-01 Siemens AG, 1000 Berlin und 8000 München METHOD FOR PRODUCING SILICON USED FOR SOLAR CELLS
ES2300201B1 (en) * 2006-11-15 2009-06-05 Casals Cardona Industrial, S.A. RESIDUAL GASES CLEANING PROCEDURE CONTAINING METAL MERCAPTAN, SOLID PARTICLES AND SILICON TETRAFLUORIDE, WITH PRODUCTION OF A REVALUABLE EFFLUENT.
CN107601434A (en) * 2017-11-07 2018-01-19 衢州市鼎盛化工科技有限公司 A kind of method and apparatus that hydrogen fluoride is prepared by fluosilicic acid
CN108816029B (en) * 2018-08-02 2023-10-13 浙江中宁硅业有限公司 Method for treating silicon tetrafluoride gas by using low-concentration HF acid and treatment equipment thereof
CN112551531A (en) * 2020-11-24 2021-03-26 浙江巨化技术中心有限公司 Method for coproducing hydrogen fluoride, white carbon black and potassium sulfate
CN114988920B (en) * 2022-04-20 2023-01-13 贵州新东浩化工材料科技有限公司 Method for utilizing fluorine and silicon resources in phosphate ore in grading manner
US11891344B2 (en) 2022-04-20 2024-02-06 Chtem Limited Methods for graded utilization of fluorine and silicon resources in phosphate ores
CN114920202B (en) * 2022-05-31 2023-06-06 江西天行化工有限责任公司 Preparation method of hydrogen fluoride
CN116425167B (en) * 2023-04-19 2024-07-16 贵州瓮福蓝天氟化工股份有限公司 Concentration method and system of fluosilicic acid solution
CN117509548B (en) * 2023-12-04 2024-07-05 云南氟磷电子科技有限公司 Method for preparing hydrofluoric acid and co-producing white carbon black by fluosilicic acid

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2819151A (en) * 1954-03-02 1958-01-07 Flemmert Gosta Lennart Process for burning silicon fluorides to form silica
US2833628A (en) * 1954-06-09 1958-05-06 Grace W R & Co Manufacture of silicon tetrafluoride
NL139012B (en) * 1961-10-02 1973-06-15 Stauffer Chemical Co PROCEDURE FOR THE WINNING OF THE FLUOR IN THE FORM OF CONCENTRATED HYDROGEN FLUORIDE.

Also Published As

Publication number Publication date
FR2158314A1 (en) 1973-06-15
IT975395B (en) 1974-07-20
BE790472A (en) 1973-02-15
GB1413333A (en) 1975-11-12
CA979179A (en) 1975-12-09
NL170402B (en) 1982-06-01
NL7214517A (en) 1973-05-02
DE2251787A1 (en) 1973-05-10
DE2251787C2 (en) 1982-08-26
SE396060B (en) 1977-09-05
FR2158314B1 (en) 1977-12-23

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Legal Events

Date Code Title Description
V4 Lapsed because of reaching the maxim lifetime of a patent