Hoechst Aktiengesellschaft

Ruhrchemie Aktiengesellschaft

Winfried Materne

Boy Cornils

Wolfgang Payer

John V Hobes

Gerhardt Horn

Josef Hibbel

Volkmar Schmidt

Bernhard Lieder

Heinrich Scheve

Ulrich Gerhardus

Mufit Bahadir

Bernard Schleper

Jurgen Lohr

Maher Onallan

Klaus Moraw

Andreas Sobbe

Pulverulent ultra-high molecular weight polyethylene, alone or as a mixture with other polyethylenes, is compacted into extrudates by extrusion agglomeration under pressure at temperatures of 100.degree. to 150.degree. C. over average residence times in the die of 2 to 40 seconds and at a compression ratio of 1:5 to 1:15, and the extrudates are divided into pellets.

Process for pelleting ultra-high molecular weight polyethylene

A process for the preparation of aqueous metal nitrate solutions by dissolving the metal in nitric acid. The formation of ammonium nitrate is suppressed and the dissolution process is accelerated by adding nitrous acid or a substance which forms nitrous acid.

Process for the preparation of metal nitrates

The present invention describes a process for producing synthesis gas by partial oxidation of carbon-containing particles suspended in water with oxygen at elevated pressures and temperatures of 1000.degree. to 1600.degree. C. Three substance streams are added separately but simultaneously to the reactor. The inner substance stream consists of oxygen or a mixture of oxygen and synthesis gas. The middle substance stream forms a carbon-water suspension, and the outer substance stream carries oxygen or oxygen-containing gases. Due to the fact that these three substance streams intersect at an acute angle, an ideal distribution of the suspension with the gas streams is achieved and an optimum reaction course is ensured. In order to be able to compensate requirement fluctuations during continuous operation, the outlet opening for the carbon-water suspension and the outer gas stream can be correspondingly adapted in a continuous and independent manner.

Process for producing synthesis gas by partial oxidation of coal-water

The present invention relates to the stabilization of a carbonaceous combustible solid-diesel fuel suspension by inclusion therein of wax-like polymers in an amount of at least 0.2% by weight of the stabilized suspension. The polymers preferred are homopolymers of .alpha. -olefins, and copolymers of ethylene and at least one other monomer copolymerizable therewith wherein the ethylene portion constitutes at least 60% by weight of the copolymer.

Coal/diesel fuel suspensions containing wax-like polymers

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Wetter, Germany

Winfried Materne