US 11,938,457 B2
Apparatus for preparing oligomer
Hong Min Lee, Daejeon (KR); Jeong Seok Lee, Daejeon (KR); Jong Hun Song, Daejeon (KR); Kyung Seog Youk, Daejeon (KR); Dong Kwon Lee, Daejeon (KR); and Moon Sub Hwang, Daejeon (KR)
Assigned to LG Chem, Ltd., Seoul (KR)
Appl. No. 17/432,083
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Nov. 13, 2020, PCT No. PCT/KR2020/015981
§ 371(c)(1), (2) Date Aug. 18, 2021,
PCT Pub. No. WO2021/145545, PCT Pub. Date Jul. 22, 2021.
Claims priority of application No. 10-2020-0004722 (KR), filed on Jan. 14, 2020.
Prior Publication US 2022/0143568 A1, May 12, 2022
Int. Cl. B01J 19/18 (2006.01); B01J 4/00 (2006.01); B01J 19/00 (2006.01); C07C 2/08 (2006.01)
CPC B01J 19/18 (2013.01) [B01J 4/002 (2013.01); B01J 4/004 (2013.01); B01J 19/006 (2013.01); B01J 19/0066 (2013.01); C07C 2/08 (2013.01); B01J 2219/00247 (2013.01); B01J 2219/00779 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An apparatus for preparing an oligomer, the apparatus comprising:
a reactor for oligomerizing a feed stream containing a monomer;
a stirrer inserted into a hole formed in an upper portion of the reactor; and
a solvent transfer line extending inward from a side of the reactor;
wherein the stirrer includes a rotating shaft vertically extending downward from the upper portion of the reactor, and a blade having a conical shape whose vertex is positioned at a lower end of the rotating shaft and an outer diameter of the blade increases from a bottom toward a top,
wherein the solvent transfer line has a plurality of spray nozzles formed in a direction toward the blade,
wherein an outer surface of the blade includes an inclined portion inclined at a predetermined angle from the vertex to the top about the rotating shaft,
wherein the solvent transfer line includes a spray portion in which the plurality of spray nozzles are formed, and
wherein the spray portion has a slope corresponding to the inclined portion and is disposed to be spaced apart from the inclined portion by a predetermined interval.