Atotech Deutschland Gmbh

Schaefer Kalk Gmbh & Co. Kg

Roland Vogel

Jens Geisler

Marijan Vucak

Christoph Nover

Jens Heydecke

Andreas Noack

Lukas Bedrnik

Ellen Habig

Birgit Sonntag

Marijian Vucak

Frantisek Haas

Nadine Lang

A dry liquid, comprising at least one additive having a molar mass greater than 20 g/mol, a melting temperature less than 500&#xb0; C., and a boiling point, measured at 101325 Pa, greater than 100&#xb0; C. and at least one calcium carbonate as a carrier material, wherein the calcium carbonate is precipitated calcium carbonate. The dry liquid is suitable in particular for introducing at least one preferably fluid additive into a chemical composition.

Dry liquid

The invention provides a process for depositing metallic layers from acidic or alkaline zinc or zinc alloy baths containing organic additives selected from brighteners, surfactants and complexing agents, a soluble zinc salt and optionally further metal salts selected from Fe, Ni, Co, Sn salts, wherein the bath can be purified continuously so that the process can be operated without interruption, as well as apparatus for carrying out this process.

Method for continuously operating acid or alkaline zinc or zinc alloy baths

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Dresden, Germany

Roland Vogel