公开(公告)号：US20230203211A1

公开(公告)日：2023-06-29

申请号：US17849408

申请日：2022-06-24

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Chien-Wei HSU ,  Jyun-Wei HONG ,  Pao Tsern LIN ,  Shu-Hua CHAN

IPC: C08F4/76 ,  C08F4/02 ,  C08F10/02

CPC classification number: C08F4/76 ,  C08F4/025 ,  C08F10/02

Abstract: An organometallic complex, a catalyst composition employing the same, and a method for preparing polyolefin are provided. The organometallic compound has a structure represented by Formula (I)





, wherein M is Ti, Zr, or Hf; X is —O—, or —NR6—; R1 and R2 are independently hydrogen, C1-6 alkyl group, C6-12 aryl group, or R1 and R2 are combined with the carbon atoms, to which they are attached, to form an C6-12 aryl moiety; R3, R4 and R5 are independently fluoride, chloride, bromide, C1-6 alkyl group, C6-12 aryl group, C3-6 hetero aryl group, C7-13 aryl alkyl group or C7-12 alkyl aryl group; and R6 is hydrogen, C6-12 aryl group or C7-12 alkyl aryl group.

公开(公告)号：US20250026720A1

公开(公告)日：2025-01-23

申请号：US18758970

申请日：2024-06-28

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Jyun-Wei HONG ,  Chien-Wei HSU

IPC: C07D211/74 ,  B01D3/10 ,  B01J31/02

Abstract: A method of manufacturing triacetonamine includes (a) introducing an acetone and an ammonia into a first reactor in the presence of a first acidic catalyst to form an acetonin; (b) introducing the acetonin and water into a second reactor in the presence of a second acidic catalyst to form a triacetonamine and side products, wherein the side products include diacetone alcohol, diacetone amine, mesityl oxide, 2,2,4,6-tetramethyl-2,3-dihydropyridine, or a combination thereof; (c) separating the triacetonamine and the side products by distillation under reduced pressure; (d) introducing the side products and water into a third reactor to heat and crack the side products in the presence of an amphiphilic catalyst to form acetone; and (e) introducing the acetone obtained from step (d) into the first reactor.