Patent ID: 8486171
Filing Date: 2013-07-16
Classification: C07F

Abstract:
1. A method of dry dust removal in organic chlorosilane production comprising: delivering a high-temperature flue gas generated in a fluidized bed reactor to an inorganic film cross-flow filter with an air compressor to remove the dust for a first time; trapping a concentrated dust gas by the inorganic film cross-flow filter in a bag filter to remove the dust for a second time, wherein a gas mixture purified with the bag filter returns to the inorganic film cross-flow filter via a fan; and condensing a clean gas mixture passing through the inorganic film cross-flow filter in a condenser, the clean gas mixture then entering a rectifying column to separate chloromethane and methyl chlorosilane, wherein chloromethane returns to the fluidized bed reactor to participate in a reaction; wherein the dust trapped by the inorganic film cross-flow filter and the bag filter returns to the fluidized bed reactor to participate in the reaction.