(US4589968-A)      Filter press electrochemical cell, comprises a frame enclosing one or more cell units each having two electrodes and a fluid distributor plate. Channels in the plate connect two holes in the plate with respective opposite sides of a central opening in the plate, the opening serving as a reaction chamber of the cell unit.    Each channel has a narrow portion adjacent a hole for pressure drop prodn., and a diverging portion adjacent the central opening. Pref. the width of the converging portion where it joins the opening is no more than 5 times its length, and not less than twice the plate thickness.    ADVANTAGE -   Improved cell efficiency by even liq. flow. (11pp)    (EP122736-B)      A fluid distributor plate (11) for use in an electrochemical cell of the filter press type, the plate (11) having a central opening (15) defining a reaction chamber extended at opposite ends by tapering channels (14), each of which comprises a fluid inlet or outlet (12) leading into a passage (24) having a reduced cross-sectional area where it meets the inlet or outlet (12) relative to the inlet or outlet (12) in order to accomplish a pressure drop in the fluid and leading in turn into a channel portion (25) having diverging sides to deliver fluid from side to side and across the thickness of the chamber and terminating at the central opening (15) at which point the channel portion (25) has a width not greater than five times its length nor less than twice the thickness of the plate (11).    (15pp)    (JP96023076-B2)      A fluid distributor plate (11) for use in an electrochemical cell of the filter press type has a plate with two holes (12) and a connecting channel (14). The holes correspond to a supply and discharge for fluid flowing through the reaction chamber defined by a central opening (15) formed by the holes.    The channel has a first portion (24) to introduce a pressure drop in the fluid flowing between the holes. A second portion (25) has diverging walls (26, 27) opening into the central opening for delivering fluid from side to side and across the thickness of the chamber. The width of the second portion at the central opening is not greater than about 5 times its length nor less than about 2 times the plate thickness.    USE/ADVANTAGE -   The cell design has the versatility to be used efficiently in many electrochemical processes. fluid distribution system provides continuous, controlled and even distribution of electrolyte between cell units.