CAS: 542-52-9; Dibutyl Carbonate

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7523-15-1 1680-31-5 56525-42-9

上下游产品

allophanic acid butyl ester butan-1-ol urea 1-iodo-butanecyclobis(pentamethylene carbonate) 1,3-dioxa-cyclotridecan-2-one 5-Ethyl-5-phenyloxazolidinedione 1,3-dioxa-cyclopentadecan-2-one

Dibutylurethane置于tetrabutoxytitanium体系中,化学反应 1.75H,以0.65 G的收率获得产物碳酸二正丁酯
参考文献:ジアルキルカーボネートの製造方法
标题:ジアルキルカーボネートの製造方法
摘要:提供一种有效生产二烷基碳酸酯的方法,该方法包括在减压条件下,在催化剂存在下使o-烷基碳酸酯不均化反应生成二烷基碳酸酯,并将反应生成的二烷基碳酸酯从反应系统中取出的二烷基碳酸酯的制备方法.[选择图]无

专利信息

专利号:US-8445713-B2
优先权日:2007-10-22
标 题 :Catalyst for the synthesis of organic carbonates, process for preparing the same and application thereof
发明人：WERSHOFEN STEFAN; KLEIN STEPHAN; ZHOU ZHIPING; WANG XINKUI; WANG JUNWEI; KANG MAOQING
权利人:WERSHOFEN STEFAN; KLEIN STEPHAN; ZHOU ZHIPING; WANG XINKUI; WANG JUNWEI; KANG MAOQING; BAYER MATERIALSCIENCE AG
摘要:The present invention relates to a catalyst for the synthesis of organic carbonates, the preparation of the catalyst and the application of this catalyst in the synthesis of organic carbonates from reacting urea and hydroxyl group containing compounds. The catalyst provided in this invention is a calcinate of hydrous salt containing rare earth element at a moderate calcining temperature.

专利号:US-10487048-B2
优先权日:2015-03-13
标 题:Configuration and its use in process for synthesis of alkyl carbamates from alkyl alcohol and urea in a tubular reactor
发明人：RANADE VIVEK VINAYAK; KELKAR ASHUTOSH ANANT; RANE VILAS HARI; KINAGE ANIL KISAN; MOTE DHANANJAY RAVINDRA; SHINGOTE SAVITA KIRAN; ROY LALITA SANJIB
权利人:COUNCIL SCIENT IND RES
摘要:The present invention discloses an improved catalyst free process for synthesis of alkyl carbamates in an integrated system comprising a tubular reactor and a striper. The process comprises reacting urea and an alcohol in said tubular reactor under autogeneous pressure; wherein said process provides >90% selectivity towards alkyl carbamate. The mixture of urea and alcohol is N fed to the tubular reactor at a particular feed rate. The tubular reactor is heated externally under autogeneous pressure to carry out a synthesis reaction producing alkyl carbamate and ammonia. The ammonia is removed from the tubular reactor by the striper. The tubular reactor and the stripper are arranged in series to reduce the equilibrium limitations of the reaction and drive the reaction in forward direction.

专利号:US-6339131-B1
优先权日:1999-12-06
标题 :Synthesis of poly (arylene ether)-poly(organosiloxane) copolymers
发明人：CELLA JAMES A; LISKA JURAJ; ULERY VICTORIA L; YEAGER GARY W; NYE SUSAN ADAMS; GUO HUA; SINGH NAVJOT
权利人:GEN ELECTRIC
摘要:A method comprising n (a) synthesis of a poly(arylene ether) having the structure (1) n wherein m is an integer having an average value in the range from about 3 to about 300; n (b) solution functionalization of polymer (1) to form functionalized poly(arylene ether) having the structure (2) n wherein X is a reactive functional group selected from the group consisting of anhydride, hydroxyl, epoxy, carboxyl, —R 1 OH, R 1 CO 2 R 2 , —R 1 CH 2 â•?CH 2 , or vinyl, wherein R 1 is a primary or secondary divalent alkyl or haloalky group having from 1 to 20 carbons, or an aryl group and R 2 is a primary or secondary alkyl group having from 1 to 10 carbons; and Q 4 is hydrogen, X, or a mixture thereof; n (c) reaction of functionalized poly(arylene ether) (2) with a poly(organosiloxane) having structure (3): n wherein x is zero or one and Y is a functional group reactive with X, selected from the group consisting of —OH, —CH 2 â•?CH 2 , epoxy, amino, carboxy, —C(O)CH 2 OH, or hydrogen, to form a poly(arylene ether)-poly(siloxane) copolymer, wherein the functionalization is in solution, and copolymer synthesis and isolation are effected by first solution nd then melt copolymerization.

专利号:US-10336681-B2
优先权日:2015-03-23
标 题:Process for the synthesis of dialkyl carbonates
发明人：RANADE VIVEK VINAYAK; KELKAR ASHUTOSH ANANT; RANE VILAS HARI; KINAGE ANIL KISAN; SHINGOTE SAVITA KIRAN; ROY LALITA SANJIB
权利人:COUNCIL SCIENT IND RES
摘要:The patent discloses a process for the synthesis of dialkyl carbonates catalyzed by a catalyst composition AB oxides, wherein A and B are rare earth metals or A and B are combination of rare earth and transition metals with ratios ranging from 0.5:10 to 10:0.5.

专利号:US-6452036-B1
优先权日:2002-03-22
标 题:Synthesis of dialkyl carbonates
发明人：ZAID GENE H; WOLF BETH ANN
权利人:JACAM CHEMICALS L L C
摘要:The invention generally concerns methods for the synthesis of dialkyl carbonates, and more specifically dimethyl carbonate (DMC) and diethyl carbonate (DEC). Methods according to the invention generally comprise reacting an alcohol or diol, a base and a halogen in the presence of an amine salt catalyst thereby forming a first intermediate. The first intermediate is reacted with carbon monoxide forming a second intermediate which then reacts with the alcohol or diol in the presence of the amine salt catalyst forming the dialkyl carbonate product.

专利号:WO-2014059961-A1
优先权日:2012-10-15
标 题 :Method for the synchronous absorption of carbon dioxide from flue gas and synthesis of dialkyl carbonates and alkylene carbonates
发明人：BÃœTTNER HERMANN; Müller Jürgen; JONKER RAPHAEL; DOEDT SEBASTIAN; BOSSE TOBIAS; MAKRAN SEBASTIAN
权利人:BÃœTTNER HERMANN
摘要:The invention relates to a synchronous CCU method (carbon dioxide capture and utilisation) for the absorption of carbon dioxide from flue gas and other CO 2 -containing substance sources and simultaneous synthesis of dialkyl carbonates and alkylene carbonates. The general subject matter of the invention is, in terms of a 'carbon dioxide capture' on the one hand, the absorption of CO 2 from flue gas and other CO 2 -containing substance sources with ammonia and/or amines to form ammonium carbamates or ammonium hydrogen carbonates or ureas or urea intermediates and, in terms of a 'carbon dioxide utilisation' on the other hand, the reaction of ammonium carbamates or ammonium hydrogen carbonates or ureas or urea intermediates with aliphatic, alicyclic or unsaturated alcohols, and including unsaturated aromatic alcohols to give dialkyl carbonates or alkylene carbonates in such a form that the CO 2 n absorption agent is re-released and fed back into the repetitive process again. A repetitive process control is extremely energy and CO 2 n efficient.