reciprocating-plate extractor

reciprocating-plate extractor

[ri′sip·rə‚kād·iŋ ¦plāt ik′strak·tər]
(chemical engineering)
A liquid-liquid contactor in which equally spaced perforated plates (as in a distillation column) move up and down rapidly over a short distance to cause liquid agitation and mixing. Also known as reciprocating-plate column.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.