公开(公告)号：DE2123233C3

公开(公告)日：1977-10-13

申请号：DE2123233

申请日：1971-05-11

Applicant: DEGUSSA

Inventor： VOELLING AXEL

IPC: C01B33/18

公开(公告)号：DD152058A5

公开(公告)日：1981-11-18

申请号：DD22266780

申请日：1980-07-16

Applicant: DEGUSSA

Inventor： AICHELMANN DIETMAR ,  KANNENBERG KARL ,  SCHUTTE DIETER ,  VOELLING AXEL

IPC: F22B1/28 ,  B01D1/00 ,  B01J19/20 ,  C01F7/30 ,  C01F7/56 ,  C01F7/58

Abstract: There is provided an apparatus for the vaporization of aluminum trichloride which consists of a U-shaped trough having flat front surfaces in which (a) there is rotatably disposed at the midpoint of the curve of the front surfaces a shaft aligned parallel to the horizontal longitudinal axis of the trough on which shaft there is disposed a helical stirrer having equal but oppositely directed pitches, in which (b) there are disposed on the curve parallel to the horizontal longitudinal axis of the trough outside or in the wall at least two heating rods along the entire length of the trough and in which (c) there is disposed at one end at the lowest point of the curve a device for the discharge of the melted material. The aluminum trichloride vaporized by means of the apparatus of the invention can be used for the pyrogenic production of aluminum oxide.

公开(公告)号：NO136291C

公开(公告)日：1977-08-17

申请号：NO73472

申请日：1972-03-08

Applicant: DEGUSSA

Inventor： KLEBE HANS ,  LANGE LUDWIG ,  VOELLING AXEL ,  DIETHER JEAN

IPC: C01G1/02 ,  C01B13/14 ,  C01B13/22 ,  C01B13/24 ,  C01B33/16 ,  C01B33/18 ,  C01D1/02

Abstract: Process for the production of a finely divided oxide of a metal or silicon by the hydrolytic conversion of a volatile corresponding metal halide or silicon halide in a flame, said process comprising feeding the volatile halide in a mixture with a combustible hydrogen-containing gas and air or oxygen to a burner provided with a mouth emitting a flame, burning the mixture in a fire tube to form a first portion of water vapor, said burner surrounded by an annular chamber forming a nozzle through which hydrogen is passed to keep the mouth of the burner free of attachments of solid substances, the quantity of oxygen or air being sufficient for the practically complete combustion of the combustible gas, and the quantities of oxygen or air and combustible gas being sufficient to produce the first portion of water vapor which will at least suffice for the hydrolysis of the volatile halides, and further wherein said flame is allowed to burn in an atmosphere consisting of gases containing a second portion of water vapor, to avoid the formation of halogen gas in waste gases and separating the resulting oxide from other reaction products. The finely divided oxides are useful as additives and fillers in the manufacture of coatings, adhesives and elastomers.