Conveying of fine solids in the synthesis of alkylchlorosilanes
AssigneeWacker Chemie AG
InventorsKonrad MAUTNER, Jochen GROSS, Till WUESTENFELD
Life of this patent
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Abstract
Pneumatic conveying of fine solids in the direct synthesis of alkylchlorosilanes conveying gas containing at least 50% by volume of alkyl chloride. The conveying apparatus preferably contains a means for switching conveying gas in the pneumatic conveying of fine solids.
Claims9
A method for pneumatic conveying of fine solids in the direct synthesis of alkylchlorosilanes, comprising conveying particles by means of conveying gas containing at least 50% by volume of alkyl chloride.
A method for switching conveying gas in a pneumatic conveying of fine solids, comprising introducing a mixture of fine solids and a first conveying gas into a first vessel, removing a portion of the first conveying gas in the first vessel, discharging a mixture of fine solids and the first conveying gas at the base of the first vessel into a second vessel arranged beneath, and removing a remainder of the first conveying gas from the solids by purging with a purge gas, discharging the mixture of purge gas and solids at the base of the second vessel and pneumatically conveying the mixture with a second conveying gas.
An apparatus for switching conveying gas in a pneumatic conveying of fine solids, comprising a feed for fine solids into a first vessel for fine solids, a ventilation fitting disposed in the first vessel, a first fitting disposed below the first vessel, a second vessel disposed below the fitting, a second ventilation fitting disposed in the second vessel, a purge gas fitting disposed in the second vessel, a second fitting disposed below the second vessel, a conveying gas fitting disposed below the second fitting, and a line for removal of pneumatically conveyed solids.
Dependencies are inferred from the claim text.