CAS: 23676-09-7; Ethyl 4-Ethoxybenzoate

上下游产品

Ethyl 4-hydroxybenzoate ethyl bromide ethanol 4-(ethoxy)benzoic acid4-isopropenyl-phenetole 4-ethoxybenzohydrazide Ethyl 4-hydroxybenzoate (E)-1,2-bis(4-ethoxyphenyl)ethene

📜大茴香酸置于氢氧化钾,氢碘酸体系中,化学反应生成对乙氧基苯甲酸乙酯
参考文献:Ladenburg; Fitz,Justus Liebigs Annalen Der Chemie,1867,Vol. 141,P. 258
标题:Ladenburg; Fitz,Justus Liebigs Annalen Der Chemie,1867,Vol. 141,P. 258

专利信息

专利号:US-8283424-B2
优先权日:2008-03-18
标题 :Process for the synthesis of alpha-olefin polymerization procatalysts
发明人：GUPTA VIRENDRAKUMAR; PATIL HARSHAD RAMDAS; NAIK DHANANJAY GHELABHAI
权利人:GUPTA VIRENDRAKUMAR; PATIL HARSHAD RAMDAS; NAIK DHANANJAY GHELABHAI; RELIANCE IND LTD
摘要:The invention relates to a process for the synthesis of a Ziegler Natta procatalyst, the process comprising first treating magnesium alkoxide with a twice used mixed solvent of TiCl 4 and chlorobenzene to form a first stage product, then treating the first stage product with a once used mixed solvent of TiCl 4 and chlorobenzene to form a second stage product and finally treating the second stage product with mixed solvent recovered by treatment of effluent from the first treatment with benzoyl chloride so as to convert contaminant of formula TiCl 3 OR in the effluent to an addition complex which is precipitated, filtered off and hydrolyzed to recover ethyl benzoate and to form Ti(OH) 4 as a side product, the product after final treatment being subjected to a plurality of successive washing steps with used as well as recovered hexane.

专利号:US-5521263-A
优先权日:1994-10-18
标 题:Catalysts and synthesis of high molecular weight amorphous polyolefins and recovery thereof
发明人：SEEGER HORST K; HOLLIDAY ROBERT E
权利人:EASTMAN CHEM CO
摘要:A process for the production of amorphous polyolefins is disclosed. The process entails contacting the olefin monomer, in an unreactive hydrocarbon solvent, with a catalyst in a recirculated, stirred reactor thereby producing amorphous polyolefin. The reactor is capable of recirculating contents that are very viscous.

专利号:US-9896523-B2
优先权日:2015-06-26
标题 :Ziegler-Natta catalyst synthesis and process thereof
发明人：SINGH GURMEET; KUMAR NARESH; KAUR SUKHDEEP; BANTU BHASKER; KAPUR GURPREET SINGH; SHASHIKANT
权利人:INDIAN OIL CORP LTD
摘要:The present invention describes a process of preparing a catalyst for olefin polymerization comprising: (i) treating a magnesium metal with an organohalide along with an internal donor to obtain a reaction mixture having solid component (A); (ii) treating the reaction mixture having solid component (A) with an acyl halide to obtain a reaction mixture having solid component (B); and (iii) treating the reaction mixture having solid component (B) of step (ii) with a transition metal compound to obtain the catalyst. The present invention also relates to a process for preparation of a catalyst system from said catalyst and preparation of a polyolefins from the catalyst system.

专利号:WO-2009116057-A2
优先权日:2008-03-18
标 题:A process for the synthesis of alpha-olefin polymerization procatalysts

专利号:JP-H10507477-A
优先权日:1994-10-18
标题:Catalyst and synthesis of high molecular weight amorphous polyolefins and their recovery.

专利号:WO-9611963-A2
优先权日:1994-10-18
标 题:Catalysts and synthesis of high molecular weight amorphous polyolefins and recovery thereof