Hoechst Aktiengesellschaft

Metallgesellschaft Aktiengesellschaft

Manfred Kuhn

Hartmut Springer

Werner H Russ

Ludwig Schlafer

Paul Rudolph

Heinz Jockel

Holger M Buch

Paul D Becker

Compounds according to the general formula ##STR1## in which: D is phenyl, optionally substituted by sulfo, carboxy, alkyl, alkoxy, alkanoylamino and/or chlorine, at least by sulfo or carboxy, or is a sulfosubstituted naphthyl;

Water-soluble disazo compounds, containing a vinylsulfonyl or

Water-soluble dyes which contain one or two fiber-reactive groups of the formula ##STR1## in which each R is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, it being possible for both R to have a meaning which is identical to or different from one another, Y is the vinyl group or a group of the general formula --CH.sub.2 --CH.sub.2 --X in which X represents a substituent which can be eliminated as an anion, and m represents the number 2 or 3. These novel dyes can be used to dye hydroxy and/or carboxamide group-containing materials in particular fiber-materials, such as, in particular, cellulose fiber materials, in fast shades.

Water-soluble monoazo and disazo dyes containing a fiber-reactive

A process for reducing an ore which comprises:

Process of producing reducing gas from solid fuels

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Frankfurt am Main, Germany

Manfred Kuhn