EP 2637969 A1 20130918 - PROCESS FOR PREPARING TRICHLOROSILANE
Title (en)
PROCESS FOR PREPARING TRICHLOROSILANE
Title (de)
VERFAHREN ZUR HERSTELLUNG VON TRICHLORSILAN
Title (fr)
PROCÉDÉ DE PRÉPARATION DE TRICHLOROSILANE
Publication
Application
Priority
- DE 102010043646 A 20101109
- EP 2011067847 W 20111013
Abstract (en)
[origin: WO2012062526A1] The present invention relates to a process for preparing trichlorosilane and optionally, if required, HCDS and OCTS, by a) in a first step, allowing silicon tetrachloride and silicon to react at a temperature of > 800 to 1450°C, b) in a step two, cooling the product stream (PS) thus obtained from step one to obtain a product stream (PG2), c) optionally, in a step three, removing STC and HCDS from the product stream (PG2) to obtain, as a residue or bottom product, a product mixture (PG3), d) optionally, in a step four, removing OCTS from the product stream PG3 from step three, to obtain, as a residue or bottom product, a product mixture (PG4), e) in a step five, reacting the product stream (PG2) originating from step two or the product mixture (PG3) originating from step three or the product mixture (PG4) originating from step four, or a mixture of product streams PG2 and PG3 or a mixture of product streams PG2 and PG4 with hydrogen chloride to obtain a product stream (PHS), and f) in a subsequent step six, removing trichlorosilane from a product stream (PHS) thus obtained, and discharging the remaining STC-containing bottoms or recycling them as a reactant component into step one of the process.
IPC 8 full level
C01B 33/107 (2006.01)
CPC (source: EP US)
C01B 33/1071 (2013.01 - EP US); C01B 33/10763 (2013.01 - US); C01B 33/10773 (2013.01 - US)
Citation (search report)
See references of WO 2012062526A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
DE 102010043646 A1 20120510; CN 103180247 A 20130626; EP 2637969 A1 20130918; JP 2013542167 A 20131121; TW 201233627 A 20120816; US 2014017155 A1 20140116; WO 2012062526 A1 20120518
DOCDB simple family (application)
DE 102010043646 A 20101109; CN 201180054095 A 20111013; EP 11775752 A 20111013; EP 2011067847 W 20111013; JP 2013538112 A 20111013; TW 100140359 A 20111104; US 201113884326 A 20111013