Procedure and device for the controlled or controlled promotion of liquid media with a gas development cell and a flow multiplier

摘要

A method for transferring flowable media (such as powders, pastes and liquids), by controlled multi-stage gas evolution, uses a gas evolution cell (e.g. as described in DE3532335) in which hydrogen or oxygen is produced in a rate determined by the cell current. The gas volume feeds a decomposition fluid, in a rate related to the cell current, from a fluid reservoir into a catalytic decomposer (which contains a decomposition catalyst and (if the decomposition fluid does not decompose itself) a decomposable substance). The gas produced by catalytic decomposition in this reactor drives a piston or a displacement membrane, which transports the flowable medium to the desired location. Corresponding apparatus is also claimed, and preferably includes a valve membrane of PTFE.