WO2011129563A3 - Method of preparing anhydrous hydrogen fluoride by using sodium aluminum tetrafluoride and reaction device for the same - Google Patents

Method of preparing anhydrous hydrogen fluoride by using sodium aluminum tetrafluoride and reaction device for the same Download PDF

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Publication number
WO2011129563A3
WO2011129563A3 PCT/KR2011/002523 KR2011002523W WO2011129563A3 WO 2011129563 A3 WO2011129563 A3 WO 2011129563A3 KR 2011002523 W KR2011002523 W KR 2011002523W WO 2011129563 A3 WO2011129563 A3 WO 2011129563A3
Authority
WO
WIPO (PCT)
Prior art keywords
hydrogen fluoride
anhydrous hydrogen
sodium aluminum
reaction device
same
Prior art date
Application number
PCT/KR2011/002523
Other languages
French (fr)
Other versions
WO2011129563A2 (en
Inventor
Kyoung Hoon Kang
Yeon Seok Cho
Se Jong Kim
Hyun Dong Lee
Jeong Mo Shim
Won Kyu Lee
Min Wook Song
Original Assignee
Kcc Corporation
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 Kcc Corporation filed Critical Kcc Corporation
Publication of WO2011129563A2 publication Critical patent/WO2011129563A2/en
Publication of WO2011129563A3 publication Critical patent/WO2011129563A3/en

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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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B9/00—General methods of preparing halides
    • C01B9/08—Fluorides
    • 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
    • C01F7/68—Aluminium compounds containing sulfur
    • C01F7/74—Sulfates
    • C01F7/745—Preparation from alums, e.g. alunite
    • 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
    • C01F7/68—Aluminium compounds containing sulfur
    • C01F7/74—Sulfates
    • C01F7/76—Double salts, i.e. compounds containing, besides aluminium and sulfate ions, only other cations, e.g. alums
    • C01F7/762—Ammonium or alkali metal aluminium sulfates

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

The present invention relates to a method of preparing anhydrous hydrogen fluoride by using sodium aluminum tetrafluoride and a reaction device for the same. More specifically, the present invention relates to a method of preparing anhydrous hydrogen fluoride by mixing and pulverizing sodium aluminum tetrafluoride (NaAlF4) as a fluoride source with sulfuric acid in a preliminary reactor to obtain gaseous anhydrous hydrogen fluoride (HF) and solid-state material, and treating the obtained solid-state material with heat in a main reactor to obtain gaseous anhydrous hydrogen fluoride and solid sodium aluminum sulfate (NaAl(SO4)2), and a reaction device for the same. According to the present invention, as a fluoride source for preparing anhydrous hydrogen fluoride, an NaAlF4 byproduct of monosilane production can be reused instead of expensive fluorspar (CaF2), which is very economical and friendly to the environment. In addition, the production yield of HF can be remarkably improved since a generation of bulky solids is suppressed by uniformly dispersing the viscous reaction intermediate of calcium hydrogen sulfate (Ca(HSO4)2) and the reactants are pulverized finely.
PCT/KR2011/002523 2010-04-12 2011-04-11 Method of preparing anhydrous hydrogen fluoride by using sodium aluminum tetrafluoride and reaction device for the same WO2011129563A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20100033311A KR101169066B1 (en) 2010-04-12 2010-04-12 Method of reusing sodium aluminum tetrafluoride obtained as a byproduct from monosilane production
KR10-2010-0033311 2010-04-12

Publications (2)

Publication Number Publication Date
WO2011129563A2 WO2011129563A2 (en) 2011-10-20
WO2011129563A3 true WO2011129563A3 (en) 2012-03-08

Family

ID=44799143

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2011/002523 WO2011129563A2 (en) 2010-04-12 2011-04-11 Method of preparing anhydrous hydrogen fluoride by using sodium aluminum tetrafluoride and reaction device for the same

Country Status (3)

Country Link
KR (1) KR101169066B1 (en)
TW (1) TWI430953B (en)
WO (1) WO2011129563A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102557043B (en) * 2011-12-28 2014-07-16 中国化学赛鼎宁波工程有限公司 Method for preparing silicon tetrafluoride and anhydrous hydrogen fluoride by taking sodium fluorosilicate as raw material
RU2505476C1 (en) * 2012-10-22 2014-01-27 Общество с ограниченной ответственностью Торговый дом "Байкальский алюминий" (ООО ТД "Байкальский алюминий") Method of obtaining hydrogen fluoride
CN113800471B (en) * 2021-10-19 2023-05-02 浙江容跃环保科技有限公司 Method for preparing hydrogen fluoride from single cryolite and reaction device thereof
CN113772630A (en) * 2021-10-19 2021-12-10 浙江容跃环保科技有限公司 Method for preparing hydrogen fluoride from cryolite

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4477425A (en) * 1983-12-15 1984-10-16 Florida Progress Corporation Production of anhydrous hydrogen fluoride from low-grade metallic fluorides and sulfuric acid
JP2001199712A (en) * 2000-01-12 2001-07-24 Daikin Ind Ltd Method of producing hydrofluoric acid
JP2002029706A (en) * 2000-07-10 2002-01-29 Daikin Ind Ltd Device and method for manufacturing hydrogen fluoride
JP2002226206A (en) * 2001-01-29 2002-08-14 Asahi Glass Co Ltd Production method for hydrogen fluoride

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4477425A (en) * 1983-12-15 1984-10-16 Florida Progress Corporation Production of anhydrous hydrogen fluoride from low-grade metallic fluorides and sulfuric acid
JP2001199712A (en) * 2000-01-12 2001-07-24 Daikin Ind Ltd Method of producing hydrofluoric acid
JP2002029706A (en) * 2000-07-10 2002-01-29 Daikin Ind Ltd Device and method for manufacturing hydrogen fluoride
JP2002226206A (en) * 2001-01-29 2002-08-14 Asahi Glass Co Ltd Production method for hydrogen fluoride

Also Published As

Publication number Publication date
TWI430953B (en) 2014-03-21
KR101169066B1 (en) 2012-07-26
KR20110113950A (en) 2011-10-19
TW201141788A (en) 2011-12-01
WO2011129563A2 (en) 2011-10-20

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