公开(公告)号：CH316990A

公开(公告)日：1956-10-31

申请号：CH316990D

申请日：1953-01-30

Applicant: MAIHAK AG

Inventor： KNOLL WERNER DIPL ING

IPC: G01B17/04 ,  G01L9/00

公开(公告)号：CH372473A

公开(公告)日：1963-10-15

申请号：CH7548159

申请日：1959-07-08

Applicant: MAIHAK AG

Inventor： KNOLL WERNER DIPL ING

IPC: G01C9/06

公开(公告)号：DE2213385A1

公开(公告)日：1973-10-04

申请号：DE2213385

申请日：1972-03-20

Applicant: MAIHAK AG

Inventor： KNOLL WERNER DIPL ING

IPC: B01J8/02 ,  B01J35/02 ,  B01J11/08

Abstract: Noble-metal catalysts, esp. Pt, which are to be used in quartz combustion ovens, esp. those used for the determination of organic carbon in water (combustion being carried out catalytically in a hot moist environment) are sheathed with a vapour/gas permeable, heat resistant, non-noble, stable, highly chemically resistant material. Pref. oxidisable, rust resisting and acid-resisting steel is used. By this means the formation of Si-eutectoid is avoided, leaching to increased furnace life and effective life of the catalyst body. The sheathing is pref. in the form of cylindrical metal meshes, with a wire spiral if desired.