EP 3962861 A1 20220309 - PROCESS FOR PRODUCING TRICHLOROSILANE WITH STRUCTURE-OPTIMISED SILICON PARTICLES
Title (en)
PROCESS FOR PRODUCING TRICHLOROSILANE WITH STRUCTURE-OPTIMISED SILICON PARTICLES
Title (de)
VERFAHREN ZUR HERSTELLUNG VON TRICHLORSILAN MIT STRUKTUR-OPTIMIERTEN SILICIUM-PARTIKELN
Title (fr)
PROCÉDÉ POUR LA PRODUCTION DE TRICHLOROSILANE COMPRENANT DES PARTICULES DE SILICIUM À STRUCTURE OPTIMISÉE
Publication
Application
Priority
EP 2019060941 W 20190429
Abstract (en)
[origin: WO2020221421A1] The invention provides a process for producing chlorosilanes of the general formula 1: HnSiCl4-n (1), in which n denotes values from 1 to 4, in a fluidized bed reactor in which a reaction gas comprising hydrogen and silicon tetrachloride is reacted using a particulate catalyst material comprising silicon at temperatures from 350 to 800 °C, where the working granulate - denoting the granules or granular mixture introduced into the fluidized bed reactor - comprises 1 mass% of silicon-comprising particles S described by a structural parameter S, with S having a value of at least 0 and being calculated as follows: formula 2 equation (1), where φS is the symmetry-weighted sphericity factor, ρSD is the bulk density [g/cm3], and ρF is the mean particulate solids density [g/cm3].
IPC 8 full level
C01B 33/107 (2006.01)
CPC (source: EP KR US)
C01B 33/1071 (2013.01 - EP KR US); B01J 8/18 (2013.01 - US); B01J 8/1809 (2013.01 - KR); B01J 2208/00584 (2013.01 - KR); B01J 2208/00672 (2013.01 - KR)
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2020221421 A1 20201105; CN 113795462 A 20211214; EP 3962861 A1 20220309; JP 2022533018 A 20220721; JP 7381605 B2 20231115; KR 102676116 B1 20240617; KR 20210138711 A 20211119; TW 202039366 A 20201101; TW I724830 B 20210411; US 2022212938 A1 20220707
DOCDB simple family (application)
EP 2019060941 W 20190429; CN 201980095900 A 20190429; EP 19721256 A 20190429; JP 2021564378 A 20190429; KR 20217033504 A 20190429; TW 109109728 A 20200324; US 201917607859 A 20190429