公开(公告)号：DD285557A5

公开(公告)日：1990-12-19

申请号：DD33167489

申请日：1989-08-10

Applicant: DEGUSSA

Inventor： SAY BEATA-M ,  LEONHARDT WOLFGANG ,  KISS AKOS ,  LORTZ WOLFGANG ,  ROEBKE WOLFGANG ,  DIETRICH CLAUS

IPC: C11D3/08 ,  C01B39/02 ,  C01B39/14 ,  C11D3/12 ,  B02C19/06 ,  C01B33/34 ,  C11D1/02

Abstract: Na A-type zeolite powder characterised by a median particle size (= 50% point) of 1.6 to 3.2 mu m measured with a Cilas 715 granulometer. This zeolite powder is employed as phosphate substitute in liquid detergents.