公开(公告)号：PT91694B

公开(公告)日：1995-05-31

申请号：PT9169489

申请日：1989-09-12

Applicant: BASF AG

Inventor： CZECH ERWIN ,  OSTERTAG WERNER ,  SCHULZE-HEGENEST DETLEF ,  SCHMITT FRANZ-ULRICH

IPC: C23C8/18 ,  G03G9/097 ,  G03G9/107 ,  G03G9/113

Abstract: The novel carriers consist of steel cores which have an iron oxide- containing coating of the formula (FeO)x . Fe2O3 where x = 0.1 - 1. The carriers are stable and effective over long cycle times (6 .10 prints). … The carriers are obtained by treating steel cores (steel spheres) with defined small amounts of sulphuric acid of defined concentration, partial oxidation of the treated cores and drying at 60-150 DEG C at

公开(公告)号：CA1320109C

公开(公告)日：1993-07-13

申请号：CA609470

申请日：1989-08-25

Applicant: BASF AG

Inventor： CZECH ERWIN ,  OSTERTAG WERNER ,  SCHULZE-HAGENEST DETLEF ,  SCHMITT FRANZ-ULRICH

IPC: C23C8/18 ,  G03G9/097 ,  G03G9/107 ,  G03G9/113

Abstract: A novel carrier which is stable and effective over long cycle times (6 x 105 prints), has an iron oxide coating of the formula (FeO)x . Fe2O3 where x = 0.1 - 1 and is obtained by treating steel cores (or balls) with defined small amounts of sulfuric acid of defined concentration, partial oxidation of the cores thus treated and drying at 60-150.degree.C at ? 100 mbar.

公开(公告)号：PT91694A

公开(公告)日：1990-03-30

申请号：PT9169489

申请日：1989-09-12

Applicant: BASF AG

Inventor： CZECH ERWIN ,  OSTERTAG WERNER ,  SCHULZE-HEGENEST DETLEF ,  SCHMITT FRANZ-ULRICH

IPC: C23C8/18 ,  G03G9/097 ,  G03G9/107 ,  G03G9/113 ,  C23C30/00 ,  C01G49/04 ,  C01G49/06

Abstract: The novel carriers consist of steel cores which have an iron oxide- containing coating of the formula (FeO)x . Fe2O3 where x = 0.1 - 1. The carriers are stable and effective over long cycle times (6 .10 prints). … The carriers are obtained by treating steel cores (steel spheres) with defined small amounts of sulphuric acid of defined concentration, partial oxidation of the treated cores and drying at 60-150 DEG C at