Verfahren und Vorrichtung zur Überführung von in Flüssigkeiten gelösten oder suspendierten oder in Gasen suspendierten Festsoffen aus einer flüssigen Phase oder einer Gasphase in eine andere flüssige Phase oder Gasphase

1,243,646. Separating inorganic substances. MAGYAR TUDOMANYOS AKADEMIA MUSZAKI KEMIAI KUTATO INTEZETE. 1 Aug., 1968 [1 Aug., 1967], No. 36721/68. Heading C1A. [Also in Divisions B1-B2 and C7] A method of transferring a component contained in a first fluid medium into a second fluid medium, comprises simultaneously moving the first and second media in continuous and turbulent flow adjacent each side of a perforated partition having only fine perforations. The turbulent flow is preferably achieved when the fluid is liquid by bubbling a gas through the liquids. The size of the perforations may be up to a few millimeters. In Example 1, phosphoric acid is separated from gypsum using 5Á perforations; in Example 2 dissolved K 2 SO 4 is separated from chromic oxide green pigment grams using 5Á perforations; in Example 3 iodine is extracted from aqueous KI with nitrobenzene using 30Á perforations; in Example 4 copper sulphate is separated from copper ore using 10Á perforations; in Example 6 SO 2 is separated from the residual gas from H 2 SO 4 production using 45Á perforations; in Example 7 iron oxide mud is denatured; and in Example 8 clay is separated from an aqueous sand suspension using 20Á perforations. The production of lead chromate from lead nitrate and potassium chromate is also exemplified.