公开(公告)号：DE2913104A1

公开(公告)日：1980-10-23

申请号：DE2913104

申请日：1979-04-02

Applicant: HOECHST AG

Inventor： EBERT HANS DIPL CHEM DR ,  KERBER HANS ,  QUECK ROBERT DIPL ING

IPC: B03C3/70 ,  B03C3/66

Abstract: The invention relates to a process for operating a lead-in-device receiving a conductor which passes through the cover of an electrical precipitation apparatus down to its electrode system. A portion of the conductor is encircled by an insulator which is radially spaced therefrom and of which the upper end provides support for a structural component having the conductor gas tightly passed therethrough. The space inside the insulator receives a sealing gas which is maintained under a pressure higher than that prevailing in the electrical precipitation apparatus. The sealing gas used for operating the device is a gas mixture consisting of an inert gas and at least 10 volume % of methane.

公开(公告)号：DE2814106A1

公开(公告)日：1979-10-11

申请号：DE2814106

申请日：1978-04-01

Applicant: HOECHST AG

Inventor： DISKOWSKI HERBERT DIPL CHEM DR ,  EBERT HANS DIPL CHEM DR ,  KERN WINFRIED DIPL CHEM DR ,  RABOWSKI HANS DIPL CHEM DR ,  SCHAEFGEN BERNHARD ,  STENDEL JOACHIM DIPL CHEM DR

IPC: C01B25/02 ,  C01B25/027 ,  C21B11/10 ,  C22B4/00 ,  C22B5/10 ,  C21B5/00

Abstract: The invention provides carbon carriers of improved reactivity suitable for use in slag-forming electrothermal reduction processes. The improved carbon carriers contain 5 to 80 weight % of the particular slag formed in the reduction process. The invention also provides a process for making the carbon carriers.