RU2007122705A - METHOD FOR PRODUCING SILICON TETRAFLUORIDE - Google Patents

METHOD FOR PRODUCING SILICON TETRAFLUORIDE Download PDF

Info

Publication number
RU2007122705A
RU2007122705A RU2007122705/15A RU2007122705A RU2007122705A RU 2007122705 A RU2007122705 A RU 2007122705A RU 2007122705/15 A RU2007122705/15 A RU 2007122705/15A RU 2007122705 A RU2007122705 A RU 2007122705A RU 2007122705 A RU2007122705 A RU 2007122705A
Authority
RU
Russia
Prior art keywords
salt
hydrofluoric acid
solution
decomposition
silicon tetrafluoride
Prior art date
Application number
RU2007122705/15A
Other languages
Russian (ru)
Inventor
Руслан Алексеевич Шевченко (RU)
Руслан Алексеевич Шевченко
Андрей Павлович Чуканов (RU)
Андрей Павлович Чуканов
Александр Юрьевич Вахрушин (RU)
Александр Юрьевич Вахрушин
Олег Александрович Манчулянцев (RU)
Олег Александрович Манчулянцев
Стелла Валерьевна Сметанкина (RU)
Стелла Валерьевна Сметанкина
Original Assignee
Закрытое акционерное общество "СОЛАР СИ" (RU)
Закрытое Акционерное Общество "Солар Си"
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 Закрытое акционерное общество "СОЛАР СИ" (RU), Закрытое Акционерное Общество "Солар Си" filed Critical Закрытое акционерное общество "СОЛАР СИ" (RU)
Priority to RU2007122705/15A priority Critical patent/RU2007122705A/en
Priority to BRPI0813442A priority patent/BRPI0813442A8/en
Priority to CA002684973A priority patent/CA2684973A1/en
Priority to AU2008271340A priority patent/AU2008271340B2/en
Priority to EP08826022.9A priority patent/EP2172423A4/en
Priority to UAA201000460A priority patent/UA98148C2/en
Priority to EA201000036A priority patent/EA015477B1/en
Priority to US12/665,689 priority patent/US20100221171A1/en
Priority to PCT/RU2008/000523 priority patent/WO2009005412A2/en
Publication of RU2007122705A publication Critical patent/RU2007122705A/en
Priority to TNP2009000523A priority patent/TN2009000523A1/en
Priority to IL202815A priority patent/IL202815A0/en
Priority to MA32492A priority patent/MA31511B1/en
Priority to ZA2010/00388A priority patent/ZA201000388B/en

Links

Landscapes

  • Silicon Compounds (AREA)

Abstract

1. Способ получения тетрафторида кремния из раствора кремнефтористоводородной кислоты, включающий образование соли кремнефтористоводородной кислоты, ее промывку, сушку и последующее разложение, отличающийся тем, что выделившиеся в результате разложения соли кремнефтористоводородной кислоты тетрафторид кремния и фтористый водород без разделения пропускают через диоксид кремния.2. Способ по п.1, отличающийся тем, что соль образовывают путем взаимодействия кремнефтористоводородной кислоты с раствором органического основания.3. Способ по п.1, отличающийся тем, что разложение соли осуществляют путем обработки ее концентрированной минеральной кислотой.4. Способ по п.3, отличающийся тем, что в качестве минеральной кислоты используют олеум, содержащий 3-5 мас.% свободного серного ангидрида.5. Способ по п.1, отличающийся тем, что сушку осуществляют потоком воздуха или инертного газа, подогретого до 55-60°С.6. Способ по п.1, отличающийся тем, что диоксид кремния помещен в 4-7%-ный раствор олеума.1. A method of producing silicon tetrafluoride from a solution of hydrofluoric acid, including the formation of hydrofluoric acid salt, washing, drying and subsequent decomposition, characterized in that silicon tetrafluoride and hydrogen fluoride released from the decomposition of hydrofluoric acid salt and hydrogen fluoride are passed through silicon dioxide without separation. 2. The method according to claim 1, characterized in that the salt is formed by reacting hydrofluoric acid with a solution of an organic base. The method according to claim 1, characterized in that the decomposition of the salt is carried out by treating it with concentrated mineral acid. The method according to claim 3, characterized in that oleum containing 3-5 wt.% Free sulfuric anhydride is used as a mineral acid. The method according to claim 1, characterized in that the drying is carried out by a stream of air or inert gas, heated to 55-60 ° C. The method according to claim 1, characterized in that the silicon dioxide is placed in a 4-7% solution of oleum.

Claims (6)

1. Способ получения тетрафторида кремния из раствора кремнефтористоводородной кислоты, включающий образование соли кремнефтористоводородной кислоты, ее промывку, сушку и последующее разложение, отличающийся тем, что выделившиеся в результате разложения соли кремнефтористоводородной кислоты тетрафторид кремния и фтористый водород без разделения пропускают через диоксид кремния.1. A method of producing silicon tetrafluoride from a solution of hydrofluoric acid, including the formation of a salt of hydrofluoric acid, washing, drying and subsequent decomposition, characterized in that silicon tetrafluoride and hydrogen fluoride released from the decomposition of a salt of hydrofluoric acid and hydrogen fluoride are passed through silicon dioxide without separation. 2. Способ по п.1, отличающийся тем, что соль образовывают путем взаимодействия кремнефтористоводородной кислоты с раствором органического основания.2. The method according to claim 1, characterized in that the salt is formed by reacting hydrofluoric acid with a solution of an organic base. 3. Способ по п.1, отличающийся тем, что разложение соли осуществляют путем обработки ее концентрированной минеральной кислотой.3. The method according to claim 1, characterized in that the decomposition of salt is carried out by treating it with concentrated mineral acid. 4. Способ по п.3, отличающийся тем, что в качестве минеральной кислоты используют олеум, содержащий 3-5 мас.% свободного серного ангидрида.4. The method according to claim 3, characterized in that oleum containing 3-5 wt.% Free sulfuric anhydride is used as a mineral acid. 5. Способ по п.1, отличающийся тем, что сушку осуществляют потоком воздуха или инертного газа, подогретого до 55-60°С.5. The method according to claim 1, characterized in that the drying is carried out by a stream of air or inert gas, heated to 55-60 ° C. 6. Способ по п.1, отличающийся тем, что диоксид кремния помещен в 4-7%-ный раствор олеума.6. The method according to claim 1, characterized in that the silicon dioxide is placed in a 4-7% solution of oleum.
RU2007122705/15A 2007-06-19 2007-06-19 METHOD FOR PRODUCING SILICON TETRAFLUORIDE RU2007122705A (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
RU2007122705/15A RU2007122705A (en) 2007-06-19 2007-06-19 METHOD FOR PRODUCING SILICON TETRAFLUORIDE
BRPI0813442A BRPI0813442A8 (en) 2007-06-19 2008-05-15 METHOD FOR PRODUCTION OF POLYCRYSTALLINE SILICON FROM A SOLUTION OF HYDROSILICOFLUORIDIC ACID, AND INSTALLATION FOR PRODUCTION OF POLYCRYSTALLINE SILICON FROM A SOLUTION OF FLUOROSILICIC ACID IN THE FORM OF A POWDER WITH SPHERICAL-SHAPED PARTICLES
UAA201000460A UA98148C2 (en) 2007-06-19 2008-08-15 Method for producing of polycrystalline silicon from solution of fluorosilicic acid and device for the preparation of polycrystalline silicon
AU2008271340A AU2008271340B2 (en) 2007-06-19 2008-08-15 Method for producing polycrystalline silicon
EP08826022.9A EP2172423A4 (en) 2007-06-19 2008-08-15 Method for producing polycrystalline silicon from a hydrosilicofluoric acid solution and a plant for producing silicon tetrafluoride and polycrystalline silicon
CA002684973A CA2684973A1 (en) 2007-06-19 2008-08-15 Method for producing polycrystalline silicon
EA201000036A EA015477B1 (en) 2007-06-19 2008-08-15 Method for producing polycrystalline silicon from a hydrosilicofluoric acid solution and a plant for producing polycrystalline silicon
US12/665,689 US20100221171A1 (en) 2007-06-19 2008-08-15 Method for producing polycrystalline silicon
PCT/RU2008/000523 WO2009005412A2 (en) 2007-06-19 2008-08-15 Method for producing polycrystalline silicon
TNP2009000523A TN2009000523A1 (en) 2007-06-19 2009-12-11 Method for producing polycrystalline silicon from hudrosiliconfluoric acid solution and a plant for the producing silicon tetrafluoride and polycrystalline silicon
IL202815A IL202815A0 (en) 2007-06-19 2009-12-17 Method for producing polycrystalline silicon from hudrosiliconfluoric acid solution and a plant for the producing silicon tetrafluoride and polycrystalline silicon
MA32492A MA31511B1 (en) 2007-06-19 2010-01-07 PROCESS FOR PRODUCING POLYCRYSTALLINE SILICON FROM FLUOROSILICIC ACID SOLUTION AND MANUFACTURING PLANT FOR SILICON TETRAFLUORIDE AND POLYCRYSTALLINE SILICON
ZA2010/00388A ZA201000388B (en) 2007-06-19 2010-01-19 Method for producing polycrystalline silicon from a hydrosilicofluoric acid solution and a plant for producing silicon tetrafluoride and polyctystalline silicon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2007122705/15A RU2007122705A (en) 2007-06-19 2007-06-19 METHOD FOR PRODUCING SILICON TETRAFLUORIDE

Publications (1)

Publication Number Publication Date
RU2007122705A true RU2007122705A (en) 2008-12-27

Family

ID=48229024

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2007122705/15A RU2007122705A (en) 2007-06-19 2007-06-19 METHOD FOR PRODUCING SILICON TETRAFLUORIDE

Country Status (2)

Country Link
RU (1) RU2007122705A (en)
UA (1) UA98148C2 (en)

Also Published As

Publication number Publication date
UA98148C2 (en) 2012-04-25

Similar Documents

Publication Publication Date Title
RU2008117406A (en) METHOD FOR PRODUCING SILICON TETRAFLUORIDE AND DEVICE FOR ITS IMPLEMENTATION
EA200900737A1 (en) METHOD OF OBTAINING HYDROGEN AND SULFURIC ACID
JP2013539448A5 (en)
PE20151554A1 (en) DESULFURATION DEVICE AND METHOD FOR SULFURIC ACID PRODUCTION DEVICE
MY169333A (en) Composition for preventing or treating hangover
MY169334A (en) Method for manufacturing high purity sulfuric acid
EA201992623A3 (en) JOINT PRODUCTION OF CARBAMIDE AND MELAMINE
RU2011147711A (en) PRODUCTION OF CHLORINE DIOXIDE
RU2007122705A (en) METHOD FOR PRODUCING SILICON TETRAFLUORIDE
RU2012157814A (en) METHOD FOR DECOMPOSITION / REMOVAL USING PHOTOCATALYTIC MATERIAL
ATE510796T1 (en) PRODUCTION OF HYDROGEN FLUORIDE FROM CALCIUM FLUORIDE AND SULFURIC ACID
RU2007122704A (en) SILICON RESTORATION METHOD
RU2007122706A (en) METHOD FOR PRODUCING SILICON
HUP0300761A2 (en) Process for the production of amorphous atorvastatin calcium
RU2008124116A (en) METHOD FOR PRODUCING SILICON TETRAFLUORIDE
JP2016516574A5 (en)
RU2008124114A (en) METHOD FOR PRODUCING SILICON
RU2008124115A (en) METHOD FOR PRODUCING SILICON
EA200801098A1 (en) METHOD OF OBTAINING POLYCRYSTALLINE SILICON
MXPA04000477A (en) Process for condensation of sulphuric acid vapours to produce sulphuric acid.
RU2009109853A (en) METHOD FOR PURFLUOROURENES CLEANING
RU2012155430A (en) METHOD FOR PRODUCING FLUORESCING DERIVATIVES OF CATHECHOLAMINS AND THEIR METABOLITES BY DERIVATIZATION METHOD
RU2009125159A (en) METHOD FOR PRODUCING HIGH PURITY STRONTIUM CARBONATE
Eshghi et al. A Review of Synthesis Methods of Carbon Nanotubes Yarn
PE20121210A1 (en) POLYCRYSTALLINE SILICON PRODUCTION TECHNOLOGY FROM FLUOROSILICICO ACID SOLUTION AND INSTALLATION FOR THE PRODUCTION OF THIS

Legal Events

Date Code Title Description
FA92 Acknowledgement of application withdrawn (lack of supplementary materials submitted)

Effective date: 20081218