Vereinigte Aluminium-werke Aktiengesellschaft

Aluminium-salzschalcke Aufbereitungs Gmbh

Leuna-werke Ag

Rw Silicium Gmbh

Vaw Silizium Gmbh

Reinhard Feige

Friedhelm Bramsiepe

Roland Thome

Hubertus Schmidt

Seigfried Engels

Rudiger Lange

Gerhard Merker

Ulrich Bollmann

A bottom lining for electrolytic cells formed from steel pots for use in primary production and secondary refining, made from a monolithic stamping of a finely granulated powder having a high alumina content, and a process for producing same. The powder is obtained from aluminum industrial scrap recovery and salt slags and has the following components in the following amounts based on dried weight:

Bottom lining for electrolytic cells and process for its manufacture

There is a process for producing spherical metal-oxide powder particles. They are used as finely ground raw and filler materials in mineral, ceramic and refractory construction, technical and auxiliary materials, as well as for polishing and grinding agents.

Process for producing spherical metal-oxide powder particles

Spherical metal-oxide powder particles are used as finely ground raw and filler materials in mineral, ceramic and refractory construction, technical and auxiliary materials, as well as for polishing and grinding agents. There is a process for producing the powder particles, and there is a process for treating ceramic and refractory residual materials.

Spherical metal-oxide powder particles and process for their manufacture

The invention relates to a partially crystalline, transitional aluminum oxide containing 4-fold and 5-fold coordinated aluminum oxide in a ratio of at least 1:2. The invention also relates to a method of making this composition. The composition is particularly useful as starting material for manufacturing highly reactive molded articles. Accordingly, the invention also relates to this manufacturing process.

Partially crystalline, transitional aluminum oxides, methods for their

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Bonn, Germany

Reinhard Feige