Method of zeolite synthesis with homogeneous shaking out of the medium, device and application

摘要

PCT No. PCT/FR97/01276 Sec. 371 Date Apr. 5, 1999 Sec. 102(e) Date Apr. 5, 1999 PCT Filed Jul. 11, 1997 PCT Pub. No. WO98/02384 PCT Pub. Date Jan. 22, 1998A method is provided for zeolite synthesis from a synthesis medium containing in particular a trivalent aluminum source, a tetravalent silicon source, at least an alkaline or alkaline-earth cation in hydroxide form and water in a reactor containing a solid helical moving body in a guiding tube defining an internal space and a space external to the tube. The invention is characterized in that the synthesis medium is circulated in the reactor in a continuous flow passing through the internal space then the space external to the tube and returning to the internal space, only driven by the roation of the solid helical moving body, at a speed of less than 500 rpm, in the tube which is kept fixed, the synthesis medium being kept at a temperature suitable for at least one of the ripening operations or the crystal growth of the synthesized zeolite. The invention also is directed to a device for implementing the method.