公开(公告)号：MY135895A

公开(公告)日：2008-07-31

申请号：MYPI20032653

申请日：2003-07-16

Applicant: BASF AG

Inventor： MUELLER ULRICH DR ,  VOB HARTWIG DR ,  SCHUBERT ERICH ,  HILL FRIEDRICH DR ,  PETERSEN HERMANN DR

IPC: B01J29/06 ,  B01J29/04 ,  B01J29/89 ,  C01B21/14 ,  C01B39/02 ,  C07B41/02 ,  C07C239/08 ,  C07C249/04 ,  C07C249/08 ,  C07D301/12

Abstract: IN A PROCESS FOR CONCENTRATING AN AT LEAST PARTIALLY CRYSTALLINE SOLID CONTAINING AT LEAST ONE ZEOLITE IN A MIXTURE COMPRISING AT LEAST ONE AUXILIARY, FOR EXAMPLE A TEMPLATE COMPOUND, AND SAID SOLID , THE MIXTURE IS ULTRAFILTRATED IN A STEP (II) TO DIVIDE THE MIXTURE INTO A RETENTATE AND A PERMEATE, THE SOLIDS CONTENT IN THE RETENTATE BEING HIGHER THAN THAT IN THE MIXTURE AND THE SOLIDS CONTENT IN THE PERMEATE BEING LOWER THAN THAT IN THE MIXTURE. THIS PROCEDURE ALLOWS AUXILIARIES, IN PARTICULAR TEMPLATE COMPOUNDS , PRESENT IN THE PERMEATE TO BE RECYCLED INTO A CRYSTALLIZATION STEP (I) UPSTREAM OF STEP (II).