公开(公告)号：DE3061261D1

公开(公告)日：1983-01-13

申请号：DE3061261

申请日：1980-05-31

Applicant: DEGUSSA

Inventor： HECKEL EMIL DR ,  SEYS FREDDY ,  BAECKELMANS RENE ,  HEILMANN WOLFGANG DR

IPC: B01D53/68 ,  C01B13/22 ,  C01B13/24 ,  C01B33/16 ,  C01B33/18 ,  C01F7/30 ,  C01G1/02 ,  C01G23/07

Abstract: The residual gas obtained in the pyrogenic production of metal oxides or metalloid oxides contain besides the desired product elemental chlorine if a chlorine containing starting material is employed. After cooling the residual gas the elemental chlorine is reacted to form hydrogen chloride by using an aqueous solution of a reducing agent and in this form the chlorine is subsequently washed out of the residual gas.

公开(公告)号：DD151296A5

公开(公告)日：1981-10-14

申请号：DD22161780

申请日：1980-06-05

Applicant: DEGUSSA

Inventor： HECKEL EMIL ,  SEYS FREDDY ,  BAECKELMANS RENE ,  HEILMANN WOLFGANG

IPC: B01D53/68 ,  C01B13/22 ,  C01B13/24 ,  C01B33/16 ,  C01B33/18 ,  C01F7/30 ,  C01G1/02 ,  C01G23/07 ,  C01B33/12

Abstract: The residual gas obtained in the pyrogenic production of metal oxides or metalloid oxides contain besides the desired product elemental chlorine if a chlorine containing starting material is employed. After cooling the residual gas the elemental chlorine is reacted to form hydrogen chloride by using an aqueous solution of a reducing agent and in this form the chlorine is subsequently washed out of the residual gas.

公开(公告)号：DE2923064A1

公开(公告)日：1980-12-11

申请号：DE2923064

申请日：1979-06-07

Applicant: DEGUSSA

Inventor： HECKEL EMIL DIPL CHEM DR ,  SEIYS FREDDY DIPL CHEM ,  BAECKELMANS RENE

IPC: B01D53/68 ,  C01B13/22 ,  C01B13/24 ,  C01B33/16 ,  C01B33/18 ,  C01F7/30 ,  C01G1/02 ,  C01G23/07 ,  C01G23/053 ,  C01F7/02

Abstract: The residual gas obtained in the pyrogenic production of metal oxides or metalloid oxides contain besides the desired product elemental chlorine if a chlorine containing starting material is employed. After cooling the residual gas the elemental chlorine is reacted to form hydrogen chloride by using an aqueous solution of a reducing agent and in this form the chlorine is subsequently washed out of the residual gas.