公开(公告)号：DE3163541D1

公开(公告)日：1984-06-20

申请号：DE3163541

申请日：1981-01-13

Applicant: DEGUSSA ,  HENKEL KGAA

Inventor： STRACK HANS DR

IPC: C11D3/12 ,  B01J20/18 ,  B01J39/14 ,  C01B20060101 ,  C01B33/26 ,  C01B39/16 ,  C11D3/08 ,  C01B33/28

Abstract: There is produced crystalline zeolite powder of Type A having an average particle diameter of 7 to 8.5 mu by introducing the components waterglass and alkali aluminate liquor under defined conditions simultaneously into a receiver containing water, stirring, subsequently first adding more alkali aluminate liquor and then more waterglass solution. The thus obtained crystalline zeolite powder is used as a phosphate substitute in washing agents.

公开(公告)号：DE3163430D1

公开(公告)日：1984-06-14

申请号：DE3163430

申请日：1981-01-13

Applicant: DEGUSSA ,  HENKEL KGAA

Inventor： STRACK HANS DR

IPC: C01B39/16 ,  C11D3/12 ,  C01B33/28

Abstract: There is produced a crystalline zeolite powder of Type A which can be employed as a phosphate substitute in washing agents by a precipitation reaction by a specific sequence in which there are simultaneously added to water in a container a waterglass solution and a sodium aluminate liquor and subsequently in succession a waterglass solution and then sodium aluminate liquor. The crystalline product has an average particle size of 6.7 to 8 mu as well as a narrow particle size distribution curve.

公开(公告)号：CH631949A5

公开(公告)日：1982-09-15

申请号：CH1374877

申请日：1977-11-10

Applicant: DEGUSSA ,  HENKEL KGAA

Inventor： STRACK HANS DR ,  ROEBKE WOLFGANG DR ,  KNEITEL DIETER ,  PARR EHRFRIED

IPC: C11D3/08 ,  B01J20/18 ,  C01B39/16 ,  C04B28/08 ,  C11D3/00 ,  C11D3/12 ,  C01B33/28