Metallgesellschaft Aktiengesellschaft

Bergwerksverband Gmbh

Paul Schmalfeld

Roland Rammler

Werner Peters

Fred Erich Cappel

Hans-Jurgen Weiss

Erwin Ahland

Joachim Lehmann

Dieter Sauter

Burkhard Bock

The present invention relates to a process for the recovery of hydrocarbonaceous materials from tar sand comprising subjecting a part of the tar sand to hot water extraction by mixing it with hot water, the solids and bitumen being separated and the latter treated further, and carrying out a dry distillation of another part of the tar sand which is thereby heated to temperatures above 400.degree. C, the gaseous and vaporous distillation products being cooled and condensed. This process is characterized in that at least a portion of the thermal energy required for hot water extraction originates in the dry distillation waste heat. This process is further characterized in that the solid coke-like residue recovered from the further treatment of the bitumen from hot water extraction is used as fuel in the dry distillation and in that the wet solids recovered from hot water extraction are mixed with the dry distillation residue to form a solid product which can be transported on belt conveyors.

Recovery of hydrocarbonaceous material from tar sands

Fine-grained coke is produced by the degasification of fine-grained coal by a process which includes the following steps:

Process for producing fine-grained coke by degasification of coal

Self-supporting compact bodies for use in metallurgical processes are made from fine-grained materials containing metal oxides, fine-grained caking coal and optionally other non-caking materials. The non-caking components, e.g., the fine-grained materials and other non-caking materials, are highly heated and mixed with the caking coal and the resulting mixture is briquetted when the coal is in a plastic state. Tar pitch, petroleum bitumen or the like is admixed with the fine-grained caking coal before it is mixed with the highly heated non-caking components. Briquettes formed in this fashion are characterized by improved crushing and abrasive strengths and improved high temperature strength.

Process of producing self-supporting briquettes for use in metallurgical

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Bad Homburg, Germany

Paul Schmalfeld