Patent ID: 9346685
Filing Date: 2016-05-24
CPC Classification: B01D,B01J,C01F,C01G,C01P,C09C

Claim Text:
1. A method for separation, comprising the steps of: providing at least two kinds of fluids to be processed, including a first fluid and a second fluid, the first fluid being a raw material solution containing a substance to be separated dissolved therein, the second fluid being at least one solvent for separation of the substance to be separated, the at least two kinds of fluids being in liquid phase; dissolving at least one dopant element or dopant element-containing substance, different from said substance to be separated, in at least one of the at least two kinds of fluids; introducing the at least two kinds of the fluids into a processing device, said processing device including two processing surfaces configured to be operated to approach to and separate from each other, at least one of the two processing surfaces rotating relative to the other; mixing the at least two kinds of fluids in a minute space between the two processing surfaces to form a thin film fluid between the two processing surfaces; producing, in the thin film fluid, a separated substance having a controlled amount of the dopant element, wherein an amount of the dopant element or the dopant element-containing substance that is dissolved into the solvent for separation is controlled so as to control an amount of the dopant element contained in the separated substance; and providing two separated introduction paths, which are independent of each other, for respectively introducing the at least two kinds of fluids into the minute space between the two processing surfaces from different directions.