Schering Aktiengesellschaft

Christoph Donner

Alfred Weber

Uwe Klages

Kurt Heymann

Lothar Reinke

Stephan Sokolowsky

Fluidized-bed fermenter

A process is disclosed for the purification of wastewaters containing biodegradable aliphatic compounds which is characterized in that these compounds are brought into contact with microorganisms capable of biodegradation immobilized by embedment in a gel-type organic polymer that does not denature the microorganisms.

Process for wastewater purification

A process is disclosed for the adhesive metallization of ceramic materials by roughening of the materials and subsequent chemical and, if necessary, galvanic metal deposition, in which the materials are treated with an alkali hydroxide solution having a temperature from 50.degree. to 180.degree. C. for the roughening, and are subsequently heated to a temperature between about 300.degree. and 600.degree. C. The metal coatings provided on the ceramic materials display adhesive strengths from 3 to 5 kg/inch. Such materials find use in the fields of electrical engineering and electronics.

Process for the adhesive metallization of ceramic materials

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Berlin, Germany

Christoph Donner