Patent ID: 8981022
Filing Date: 2015-03-17
Classification: B01F,C08F

Abstract:
1. A method of producing a composition having a continuous phase and a disperse phase dispersed finely in the continuous phase, the method comprising the steps of: (A) passing a swirling flow of the continuous phase liquid into a cylindrical body, the circumferential surface of which is either in part or entirely formed by a porous membrane; (B1) supplying the disperse phase fluid to the swirling flow via the porous membrane to form the particles of the disperse phase on the porous membrane; and (B2) detaching the disperse phase particles formed on the porous membrane by the shear force of the swirling flow, wherein the cylindrical body has an inlet for the continuous phase liquid on the circumferential surface of the cylindrical body in the vicinity of one end of the cylindrical body and an inlet tube which extends from the inlet in the substantially vertical direction to the axis of the cylindrical body and the tangential direction to the cylindrical body, wherein the step (A) is a step for passing the swirling flow by use of the inlet tube to allow the continuous phase liquid in from the substantially vertical direction to the axis of the cylindrical body and the tangential direction to the inner wall surface of the cylindrical body, wherein a flow linear velocity which is defined as a value obtained by dividing the flow volume of the continuous phase liquid in the inlet tube by the inner diameter cross-sectional area of the inlet tube is 1 to 40 m/s, and wherein the composition obtained has a span of 0.2 to 1.5, which is defined by the formula (1): wherein d d d