Title:
GAS-PHASE POLYMERIZATION OF ALPHA-OLEFINS
Document Type and Number:
WIPO Patent Application WO/2011/136492
Kind Code:
A2
Abstract:
Disclosed is a highly productive polymerization method of alpha-olefins, using an internal-circulation-type fluidized bed polymerization reactor. The gas-phase polymerization method of alpha-olefins includes: supplying a circulating gas including alpha-olefins and/or an inert gas to a reactor; polymerizing the alpha-olefins into a polyolefin in two separate polymerization regions within the reactor; and removing the produced polyolefin polymer from the reactor. The reactor is divided into the two polymerization regions by a draft tube; an internal portion of the draft tube forms a riser region in which the growing polyolefin polymer rises and moves in high-speed fluidizing conditions, an external portion of the draft tube forms an annulus region in which the polyolefin polymer passing through the riser region drops and moves by means of gravitational force, the polyolefin polymer passing through the annulus region is reintroduced into a lower portion of the riser region, and the polyolefin polymer is polymerized while being circulated in the riser region and in the annulus region.
Inventors:
KANG, Sung-Woo (Gukhwa Woosung APT. 505-902, Dunsan 3-Dong, Seo-Gu, Daejeon 302-782, 302-782, KR)
강성우 (대전광역시 서구 둔산3동 국화우성아파트 505-902, 302-782 Daejeon, 302-782, KR)
KIM, Nam-Kyu (217-3, Sinseong-Dong Yuseong-Gu, Daejeon 305-805, 305-805, KR)
김남규 (대전광역시 유성구 신성동 217-3, 305-805 Daejeon, 305-805, KR)
JUN, Young-Jae (Hana APT, Sinseong-Dong, Yuseong-Gu, Daejeon 305-721, 305-721, KR)
강성우 (대전광역시 서구 둔산3동 국화우성아파트 505-902, 302-782 Daejeon, 302-782, KR)
KIM, Nam-Kyu (217-3, Sinseong-Dong Yuseong-Gu, Daejeon 305-805, 305-805, KR)
김남규 (대전광역시 유성구 신성동 217-3, 305-805 Daejeon, 305-805, KR)
JUN, Young-Jae (Hana APT, Sinseong-Dong, Yuseong-Gu, Daejeon 305-721, 305-721, KR)
Application Number:
KR2011/002765
Publication Date:
November 03, 2011
Filing Date:
April 19, 2011
Export Citation:
Assignee:
DAELIM INDUSTRIAL CO., LTD. (146-12, Susong-Dong Jongno-Gu, Seoul 110-732, 110-732, KR)
대림산업 주식회사 (서울시 종로구 수송동 146-12, 110-732 Seoul, 110-732, KR)
KANG, Sung-Woo (Gukhwa Woosung APT. 505-902, Dunsan 3-Dong, Seo-Gu, Daejeon 302-782, 302-782, KR)
강성우 (대전광역시 서구 둔산3동 국화우성아파트 505-902, 302-782 Daejeon, 302-782, KR)
KIM, Nam-Kyu (217-3, Sinseong-Dong Yuseong-Gu, Daejeon 305-805, 305-805, KR)
김남규 (대전광역시 유성구 신성동 217-3, 305-805 Daejeon, 305-805, KR)
대림산업 주식회사 (서울시 종로구 수송동 146-12, 110-732 Seoul, 110-732, KR)
KANG, Sung-Woo (Gukhwa Woosung APT. 505-902, Dunsan 3-Dong, Seo-Gu, Daejeon 302-782, 302-782, KR)
강성우 (대전광역시 서구 둔산3동 국화우성아파트 505-902, 302-782 Daejeon, 302-782, KR)
KIM, Nam-Kyu (217-3, Sinseong-Dong Yuseong-Gu, Daejeon 305-805, 305-805, KR)
김남규 (대전광역시 유성구 신성동 217-3, 305-805 Daejeon, 305-805, KR)
International Classes:
C08F2/34; B01J19/24; C08F10/00; C08F210/16
Attorney, Agent or Firm:
LEE, Sang-Hun (HAN NURI PATENT & LAW OFFICE, Yeong-Won Bldg. Suite 503,739-5, Yeoksam-Dong, Gangnam-Gu, Seoul 135-924, 135-924, KR)
Claims:
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