METHOD FOR PRODUCING SILICIC ACID WITH VARIABLE THICKENING

摘要

Process for production of silica having variable thickening wherein
a) a product stream I comprising at least a vaporous, hydrolysable and/or oxidizable silicon compound,b) a product stream II comprising oxygen andc) a product stream III comprising at least a combustible gas are made to react, characterized in thatd) a feed port in a pipepiece A, said pipepiece A comprising one or more static mixing elements, is used to import product stream I into product stream II, or vice versa and thereby create product stream IV, thene) a feed port in a pipepiece B, said pipepiece B comprising one or more static mixing elements,
is used to import product stream III in product stream IV and thereby create product stream V,f) product stream V leaving pipepiece B is imported into a reaction chamber, ignited therein and reacted in a flame, andg) the resultant solid material is separated off.

主权项

1. A process for producing silica having variable thickening, the process comprising:
introducing a stream comprising at least one silicon compound selected from the group consisting of a vaporous silicon compound, a hydrolyzable silicon compound and an oxidizable silicon compound, into a stream comprising oxygen, or vice versa, employing a feed port in a first pipe piece comprising one or more static mixing elements to create a first product stream; introducing a stream comprising at least a combustible gas into the first product stream employing a feed port in a second pipe piece comprising one or more static mixing elements to create a second product stream; introducing the second product stream, which leaves the second pipe piece, into a reaction chamber to ignite the second product stream to react in a flame; and separating solids resulting from the ignition and the reaction.