WO2011051133A1 - Verfahren zur herstellung von organosilanen - Google Patents
Verfahren zur herstellung von organosilanen Download PDFInfo
- Publication number
- WO2011051133A1 WO2011051133A1 PCT/EP2010/065668 EP2010065668W WO2011051133A1 WO 2011051133 A1 WO2011051133 A1 WO 2011051133A1 EP 2010065668 W EP2010065668 W EP 2010065668W WO 2011051133 A1 WO2011051133 A1 WO 2011051133A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- general formula
- mixture
- radical
- hydrogen
- chlorobenzene
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic System
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/12—Organo silicon halides
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic System
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/12—Organo silicon halides
- C07F7/121—Preparation or treatment not provided for in C07F7/14, C07F7/16 or C07F7/20
- C07F7/122—Preparation or treatment not provided for in C07F7/14, C07F7/16 or C07F7/20 by reactions involving the formation of Si-C linkages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/24—Stationary reactors without moving elements inside
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic System
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/12—Organo silicon halides
- C07F7/121—Preparation or treatment not provided for in C07F7/14, C07F7/16 or C07F7/20
- C07F7/123—Preparation or treatment not provided for in C07F7/14, C07F7/16 or C07F7/20 by reactions involving the formation of Si-halogen linkages
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic System
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/12—Organo silicon halides
- C07F7/121—Preparation or treatment not provided for in C07F7/14, C07F7/16 or C07F7/20
- C07F7/125—Preparation or treatment not provided for in C07F7/14, C07F7/16 or C07F7/20 by reactions involving both Si-C and Si-halogen linkages, the Si-C and Si-halogen linkages can be to the same or to different Si atoms, e.g. redistribution reactions
Definitions
- the invention relates to a process for the preparation of
- Organosilanes of hydrogen silanes and halogenated hydrocarbons in the presence of a radical initiator Organosilanes of hydrogen silanes and halogenated hydrocarbons in the presence of a radical initiator.
- Laid-open publication is i.a. the production of
- the object of the invention is to provide a process for the preparation of diorganyldihalogens lanen with high specific yield, which forms little unwanted by-products and which is safe to handle.
- the invention relates to a process for the preparation of diorganyldihalosilanes of the general formula (1)
- a free radical initiator which is selected from alkanes reacted, diazenes and organodisilanes, wherein R is a monovalent C] _-C] _g hydrocarbon radical,
- R ' is a monovalent Ci-Cig hydrocarbon radical, hydrogen or halogen
- X is halogen
- Trichlorosilane fall e.g. as distillates in the
- Chlorosilane production for the production of hyperpure silicon for the semiconductor or photovoltaic industry in large quantities If one uses these chlorosilane mixtures, we obtain by the inventive method by reaction with
- Radical initiators which are used at 500 ° C. for at least 5 seconds, in particular
- R 1 and R 4 are phenyl and R 2 , R 3 , R 5 and R 6 are hydrogen or alkyl or R 1 and R 4 are phenyl and R 2 and R 5 are phenyl or alkyl and R 3 and R ⁇ Trialkoxysiloxyrest or
- R ⁇ , R 2 , R 4 and R 5 are phenyl and R 3 and R 6 are hydrogen
- R 7 -N NR 8 (6), wherein R7 and R ° C] _-C] _ Q hydrocarbyl may be este, or organodisilanes of the general formula
- alkyl radicals here are C 1 -C -alkyl radicals
- R and C are preferably alkyl, aryl or aralkyl radicals.
- R 1 and R 2 are preferably C 2 -C 5 -alkyl radicals, in particular the methyl or ethyl radical or chlorine.
- Particularly good results are obtained with 1,2-diphenylethane, 2,3-diphenyl-2, 3-dimethylbutane, 1, 1, 2, 2-tetraphenylethane, 3,4-dimethyl-3-diphenylhexane, dicyclohexyl diazene and di-t-butylamine. achieved by butyl diazene.
- X and R 'in the meaning of halogen are preferably fluorine,
- Chlorine and bromine especially chlorine.
- Particularly preferred is it is the silane of the general formula (2) to dichlorosilane.
- radicals R ' are preferably phenyl radicals or C 1 -C -alkyl radicals, in particular methyl or ethyl radicals or chlorine.
- Preferred compounds of the general formula (3) are
- the silane is the
- the radicals R are preferably alkenyl radicals preferably having 2 to 6 carbon atoms, such as vinyl-allyl, methallyl, 1-propenyl, 5-hexenyl, ethynyl, butadienyl, hexadienyl, cyclopentenyl, cyclopentadienyl, cyclohexenyl, preferably vinyl and
- Aryl radicals such as phenyl radicals; Alkaryl radicals, aralkyl, alkenylaryl or arylalkenyl radicals; Phenylalkenyl radicals.
- Halogenobenzene especially chlorobenzene.
- the halohydrocarbon of the general formula (4) is reacted with the mixture of the hydrosilanes of the general formulas (2) and (3) in a molar ratio of halogen: Si-bonded hydrogen of not more than 4: 1, in particular not more than 1.5: 1, 0 and at least 1: 4, more preferably at most 3: 1 reacted.
- the amount of alkane or diazene used as radical initiator is preferably at least 0.005 wt .-%, in particular at least 0.01 wt .-% and at most 3% by weight, in particular not more than 0.5% by weight, based on the mixture of halohydrocarbon used
- organodisilanes in particular disilanes (for example the high-boiling fraction from the distillation residue of ochow synthesis of .sup.4) and hydrogensilanes of the general formulas (2) and (3)
- Dichlorodimethylsilane as a radical initiator are preferably at least 1% by weight, in particular at least 2% by weight and at most 15% by weight, in particular at most 10% by weight, based on the mixture of halohydrocarbon of the general formula (4) and hydrogensilanes used the general
- diphenyldichlorosilane is prepared from dichlorosilane by reaction with chlorobenzene by the process according to the invention.
- Dichlorosilane and trichlorosilane in proportions up to preferably not more than 50% other chlorosilanes from the Chlorsilansynthese starting from metallurgical silicon and hydrogen chloride, preferably tetrachlorosilane and methyldichlorosilane.
- metal chlorides such as
- the inventive method is preferably at
- the inventive method is preferably in a
- mixture of chlorobenzene, and dichlorosilane with trichlorosilane and free-radical initiator is preferably fed in vapor.
- these are preferably the liquid
- Components - which are either premixed in a mixing unit (static or active mixer) in the desired ratio or produced directly as a mixture in a process - by an evaporator and the vapors then by a Heat exchanger sent / thus with approximately
- Reaction temperature enter the reactor zone.
- Room temperature solid radical initiators are used in a preferred embodiment in the form of a solution in chlorobenzene.
- the residence time of the reaction mixture in the reactor is preferably at least 2 seconds, in particular at least 5 seconds and at most 80 seconds, in particular at most 50 seconds,
- Reaction mixture is preferably carried out after removal of the volatile constituents, in particular of the hydrogen halide formed in the reaction, by distillation or
- the hydrogen halide formed is preferably bound in a scrubbing system and optionally neutralized or, more preferably, recycled
- the process according to the invention is preferably carried out continuously. It can be e.g. to
- Phenyldichlorosilane which isolated by distillation in a mixture with the educt mixture can be fed back into the reactor.
- the materials in the components must be resistant to the
- Reactor design (volume, pressure loss) can be variably set within limits and can be optimized from an economic point of view. For example, it may be useful to reduce the throughput and thus increase the residence time, if this is to achieve a better space-time yield. Conversely, this can result in undesirable reactions that can lead to the separation of solids in the reactor system.
- Reactions are carried out at an ambient pressure of 0.10 MPa (abs.) And an ambient temperature of 20 ° C.
- a quartz glass apparatus consisting of evaporator flask with an argon or nitrogen inlet valve, attached tube with heating mantle as reaction zone, bridge with cooling jacket, sampling flask for the condensable reaction products and Reactions of dichlorosilane and mixtures of trichlorosilane and dichlorosilane with chlorobenzene can be carried out under different conditions.
- Evaporator flask is heated to 170 ° C, the cooling
- Thermocouple determines which projects into the hot reaction zone.
- the sample is taken from the sampling flask via the bottom valve by means of an evacuated sample vessel and analyzed by gas chromatography.
- the quartz tube After inerting with argon, the quartz tube is brought to the desired temperature with an electric heater. From a storage container is the
- Metered evaporator flask The liquid is metered at a rate such that the metered amount evaporates completely as soon as possible.
- the metered amount evaporates completely as soon as possible.
- Inertization 5 1 / h argon introduced.
- the condensate collects after a few seconds in the sampling flask, Once a representative amount has accumulated, the dosage is interrupted and a sample of the liquid condensate taken under argon and in a
- Reaction zone was 600 ° C, the residence time at 10 seconds, After half an hour, the dosage was terminated. About 40 g of yellowish condensate had collected in the receiver flask. According to gas chromatographic analysis, the condensate contained not only unreacted dichlorosilane (0.28%), trichlorosilane (4.11%) and chlorobenzene (68.9%).
- Reaction zone was 650 ° C, the residence time at 10 seconds. After half an hour, the dosage was stopped. 37 g of yellowish condensate had collected in the receiver flask. According to gas chromatographic analysis, the condensate contained not only unreacted dichlorosilane (0.03%), trichlorosilane (1.22%) and chlorobenzene (60%).
- Reaction zone was 600 ° C, the residence time at 8 seconds. After half an hour, the dosage was stopped. 48 g of yellowish condensate had collected in the receiver flask. According to gas chromatographic analysis, the condensate contained not only unreacted dichlorosilane (0.45%), trichlorosilane (5.29%) and chlorobenzene (68.4%).
- Reaction zone was 600 ° C, the residence time at 8 seconds. After half an hour, the dosage was stopped. 48 g of yellowish condensate had collected in the receiver flask. According to gas chromatographic analysis, the condensate contained not only unreacted dichlorosilane (1.15%), trichlorosilane ⁇ 1.83% ⁇ and chlorobenzene (73.54%).
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10765648A EP2493900A1 (de) | 2009-10-28 | 2010-10-19 | Verfahren zur herstellung von organosilanen |
US13/497,673 US20120296106A1 (en) | 2009-10-28 | 2010-10-19 | Process for preparing organosilanes |
CN2010800493352A CN102596971A (zh) | 2009-10-28 | 2010-10-19 | 有机硅烷的制备方法 |
JP2012535740A JP5426033B2 (ja) | 2009-10-28 | 2010-10-19 | オルガノシランの製造方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009046121.3 | 2009-10-28 | ||
DE102009046121A DE102009046121A1 (de) | 2009-10-28 | 2009-10-28 | Verfahren zur Herstellung von Organosilanen |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011051133A1 true WO2011051133A1 (de) | 2011-05-05 |
Family
ID=43333337
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2010/065668 WO2011051133A1 (de) | 2009-10-28 | 2010-10-19 | Verfahren zur herstellung von organosilanen |
Country Status (7)
Country | Link |
---|---|
US (1) | US20120296106A1 (de) |
EP (1) | EP2493900A1 (de) |
JP (1) | JP5426033B2 (de) |
KR (1) | KR20120048036A (de) |
CN (1) | CN102596971A (de) |
DE (1) | DE102009046121A1 (de) |
WO (1) | WO2011051133A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6580692B2 (ja) * | 2015-02-06 | 2019-09-25 | ダウ シリコーンズ コーポレーション | オルガノハロシランを作製する方法 |
EP3253771B1 (de) * | 2015-02-06 | 2020-08-12 | Dow Silicones Corporation | Verfahren zur herstellung von organohalosilanen |
CN112920214A (zh) * | 2019-12-05 | 2021-06-08 | 新特能源股份有限公司 | 一种苯基氯硅烷、制备方法及装置 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10349286A1 (de) | 2003-10-23 | 2005-05-25 | Wacker-Chemie Gmbh | Verfahren zur Herstellung von Organosilanen |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04198186A (ja) * | 1990-11-28 | 1992-07-17 | Mitsui Toatsu Chem Inc | 有機ケイ素化合物の製造方法 |
US5136071A (en) * | 1991-12-16 | 1992-08-04 | Dow Corning Corporation | Sodium borohydride as activator for phenylborane catalyzed disproportionation of arylsilanes |
US6251057B1 (en) * | 1999-04-13 | 2001-06-26 | Korea Institute Of Science And Technology | Dehydrohalogenative coupling reaction of organic halides with silanes |
KR100306574B1 (ko) * | 1999-04-13 | 2001-09-13 | 박호군 | 탈할로겐화수소 반응으로 유기할로겐 화합물에 실란을 결합시키는 방법 |
JP2003212884A (ja) * | 2002-01-24 | 2003-07-30 | Toagosei Co Ltd | フェニルシランの製造方法 |
JP2004284963A (ja) * | 2003-03-19 | 2004-10-14 | Asahi Glass Co Ltd | 芳香族シラン化合物の製造方法 |
-
2009
- 2009-10-28 DE DE102009046121A patent/DE102009046121A1/de not_active Withdrawn
-
2010
- 2010-10-19 EP EP10765648A patent/EP2493900A1/de not_active Withdrawn
- 2010-10-19 JP JP2012535740A patent/JP5426033B2/ja not_active Expired - Fee Related
- 2010-10-19 WO PCT/EP2010/065668 patent/WO2011051133A1/de active Application Filing
- 2010-10-19 CN CN2010800493352A patent/CN102596971A/zh active Pending
- 2010-10-19 KR KR1020127008279A patent/KR20120048036A/ko active IP Right Grant
- 2010-10-19 US US13/497,673 patent/US20120296106A1/en not_active Abandoned
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10349286A1 (de) | 2003-10-23 | 2005-05-25 | Wacker-Chemie Gmbh | Verfahren zur Herstellung von Organosilanen |
Also Published As
Publication number | Publication date |
---|---|
US20120296106A1 (en) | 2012-11-22 |
JP2013508433A (ja) | 2013-03-07 |
KR20120048036A (ko) | 2012-05-14 |
DE102009046121A1 (de) | 2011-05-05 |
CN102596971A (zh) | 2012-07-18 |
EP2493900A1 (de) | 2012-09-05 |
JP5426033B2 (ja) | 2014-02-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0600266B1 (de) | Verfahren zur Herstellung von SiH-Gruppen aufweisenden Organopolysiloxanen | |
EP2121522B1 (de) | Verfahren zur herstellung höherer germaniumverbindungen | |
EP2078695B1 (de) | Verfahren zur Abscheidung von polykristallinem Silicium | |
US7033561B2 (en) | Process for preparation of polycrystalline silicon | |
KR101573933B1 (ko) | 트리클로로실란의 제조 방법 및 제조 장치 | |
WO2016198264A1 (de) | Verfahren zur aufarbeitung von mit kohlenstoffverbindungen verunreinigten chlorsilanen oder chlorsilangemischen | |
US20020187096A1 (en) | Process for preparation of polycrystalline silicon | |
DE2709137A1 (de) | Verfahren zur herstellung von hydrogensilanen | |
DE829892C (de) | Verfahren zur Herstellung von alkenylsubstituierten, endstaendig ungesaettigten Chlorsilanen | |
JP2013542167A (ja) | トリクロロシランの製造法 | |
EP1179534B1 (de) | Verfahren zum Aufarbeiten von Rückständen der Direktsynthese von Organochlorsilanen | |
WO2011051133A1 (de) | Verfahren zur herstellung von organosilanen | |
US10207932B2 (en) | Trichlorosilane purification system and method for producing polycrystalline silicon | |
KR100253897B1 (ko) | 알킬클로로실란의 직접합성의 잔류물로부터 알킬클로로실란의제조방법 | |
DE936445C (de) | Verfahren zur Herstellung von Vinylchlorsilanen | |
DE69916223T2 (de) | Redistribution von Silalkylene in ein Alkylreiche Silalkylen-enthaltende Rückstände | |
WO2012139807A1 (de) | Verfahren zur herstellung von chlorsilanen mittels hochsiedender chlorsilane oder chlorsilanhaltiger gemische | |
EP1495033B1 (de) | Verfahren zur herstellung von halosilanen unter mikrowellenenergiebeaufschlagung | |
DE10126558C1 (de) | Verfahren zur Herstellung von Silanen | |
US3704260A (en) | Purification of dimethylhydrogenchlorosilane | |
DE3208829A1 (de) | Verfahren zum methylieren von siliciumverbindungen | |
DE102009047234A1 (de) | Verfahren zur Konvertierung von Siliciumtetrachlorid mit Gemischen aus Methan und Wasserstoff | |
EP0267406A2 (de) | Verfahren zur Herstellung von Alkoxysilanen | |
WO2009106447A1 (de) | Verfahren zur herstellung von alkylchlorsilanen aus den rückständen der direktsynthese von alkylchlorsilanen | |
KR102618387B1 (ko) | 할로실란 함유 조성물내 보론 화합물의 함량을 감소시키는 방법 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201080049335.2 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 10765648 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13497673 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2010765648 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 20127008279 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2012535740 Country of ref document: JP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |