Lg Chem, Ltd

Eun-Jung Joo

Dae-Young Shin

Jong-Ku Lee

Dong-Kwon Lee

Joon-Ho Shin

Chang-Hoe Heo

The present invention relates to a high-vacuum serial condenser system that can minimize a pressure drop of fluid in condensers by disposing straight pipes between the condensers and installing baffles at predetermined angles in the condensers.

High-vacuum serial condenser system

A SCC (Spinning Cone Column) includes a housing having a rotation axis, a supply part of at least one reactant formed inside of the housing, at least two spinning cones that are installed so as to have a constant gradient from the upper part to the lower part to the rotation axis, move reactants supplied through the reactant supply part, and rotate around the rotation axis, a fixed cone that is fixed and formed on the inner side of the housing, and provides a pathway for sequentially moving reactant from a spinning cone at the upper part to a spinning cone at the lower part, a product collection part for collecting reactants moved through the spinning cone and the fixed cone, and a driving part for rotating the spinning cone.

SCC with improvied mobility of material to be removed

The present invention provides a method for removing unreacted monomer in polymer using a SCC comprising a housing having a rotation axis; a supply part of at least one polymer formed inside of the housing; at least two spinning cones that are installed so as to have a constant gradient from the upper part to the lower part to the rotation axis, move polymer supplied through the polymer supply part, and rotate around the rotation axis; a fixed cone that is fixed and formed on the inner side of the housing, and provides a pathway for sequentially moving polymer from a spinning cone at the upper part to a spinning cone at the lower part; a product collection part for collecting polymer moved through the spinning cone and the fixed cone; and a driving part for rotating the spinning cone. The method for removing unreacted monomers in polymer using SCC according to the present invention may control polymer residence time and thus does not lower polymer stability even under high temperature condition, and has high area density and thus has excellent unreacted monomer removal efficiency without using steam and the like, or with a small amount of steam, and the like.

Method for removing unreacted monomers in polymer using SCC

The present invention provides a SCC (Spinning Cone Column) equipped with a foam removal unit comprising: a housing having a rotation axis; a supply part of at least one reactant formed inside of the housing; at least two spinning cones that are installed so as to have a constant gradient from the upper part to the lower part to the rotation axis, move supplied reactants through the reactant supply part, and rotate around the rotation axis; a fixed cone that is fixed and formed on the inner side of the housing, and provides a pathway for sequentially moving reactant from a spinning cone at the upper part to a spinning cone at the lower part; a product collection part for collecting reactants moved through the spinning cone and the fixed cone; and a driving part for rotating the spinning cone, wherein a foam removal unit is installed on one side of the housing. The SCC according to the present invention solves the problems that foam is generated when separating material to be removed to decrease removal yield and lower stability of the product, and may improve removal yield and product stability because a foam removal unit is for removing generated foam is installed.

Growing community of inventors

Daejeon, South Korea

Eun-Jung Joo