Preparing By Reacting An Acyclic Acetylenically Unsaturated Compound And An Organic Hydroxy Containing Compound (h Of -oh May Be Replaced By A Group Ia Or Iia Light Metal) Patents (Class 568/688)
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Patent number: 9000228Abstract: A method for efficiently producing high purity vinyl ether represented by the following formula (1) from tertiary alcohol having a low reactivity comprising by reacting acetylene and a tertiary alcohol in the presence of a base using, as a solvent, a cyclic urea compound or glyme compound or mixture thereof: is provided.Type: GrantFiled: May 28, 2010Date of Patent: April 7, 2015Assignee: Nippon Carbide Industries Co., Ltd.Inventors: Shinichi Kakinuma, Shinya Mita, Masahiro Murotani
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Patent number: 8946487Abstract: Process for preparing divinyl ethers by reacting compounds having two hydroxyl groups (hereinafter referred to as diols) with acetylene, wherein the hydroxyl groups are incompletely reacted with acetylene and the resulting product mixture therefore comprises the monovinyl ether in addition to the divinyl ether and the monovinyl ether is separated off from the product mixture by extractive distillation in the presence of an extractant.Type: GrantFiled: February 16, 2012Date of Patent: February 3, 2015Assignee: BASF SEInventors: Thomas Maidhof, Helmut Kronemayer, Georg Heinrich Grosch, Regina Vogelsang, Klaus Peter Gumbel, Tim Balensiefer, Alexey Shilkin
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Publication number: 20120215033Abstract: Process for preparing divinyl ethers by reacting compounds having two hydroxyl groups (hereinafter referred to as diols) with acetylene, wherein the hydroxyl groups are incompletely reacted with acetylene and the resulting product mixture therefore comprises the monovinyl ether in addition to the divinyl ether and the monovinyl ether is separated off from the product mixture by extractive distillation in the presence of an extractant.Type: ApplicationFiled: February 16, 2012Publication date: August 23, 2012Applicant: BASF SEInventors: Thomas MAIDHOF, Helmut Kronemayer, Georg Heinrich Grosch, Regina Vogelsang, Klaus Peter Gumbel, Tim Balensiefer, Alexey Shilkin
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Patent number: 7842843Abstract: To provide a C4 fraction that contains significantly reduced amounts of butynes and methylallene and to provide a process for low-cost and effective production of ethers in which the C4 fraction is used as the starting material for a telomerization process. A mixture containing 25 to 80 mass % 1,3-butadiene, 13 to 68 mass % butenes and 2 to 15 mass % butanes with butynes and methylallene being contained in amounts of 50 ppm or less and 5 to 800 ppm, respectively.Type: GrantFiled: November 29, 2006Date of Patent: November 30, 2010Assignee: Kuraray Co., Ltd.Inventors: Jin Tokuyasu, Hideharu Iwasaki
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Patent number: 7732646Abstract: An allyl type crosslinking agent for use in production of a super water-absorbent polymer comprising a polymerizable compound having a carbon-carbon double bond or a salt thereof. The crosslinking agent comprises a linear hydroxypolyallyl ether having at least one hydroxyl group and at least two allyl groups obtained by allyletherification of hydroxyl groups in a linear polyol compound selected from the group consisting of erythritol, xylitol and sorbitol. This allyl type crosslinking agent is highly soluble in an aqueous solvent, and can give an excellent super water-absorbent polymer, which cannot be obtained in the prior arts, having high levels of both of water absorptivity under atmospheric pressure and water absorptivity under pressurized conditions.Type: GrantFiled: January 3, 2005Date of Patent: June 8, 2010Assignee: Daiso Co., Ltd.Inventors: Shin-ichiro Nakamura, Yasumi Shimizu, Tohru Matsutomi, Thomas Daniel
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Patent number: 7074970Abstract: A process produces vinyl ether compounds and includes allowing a vinyl ester compound represented by following Formula (1): wherein R1, R2, R3 and R4 are the same or different and are each a hydrogen atom or an organic group, to react with a hydroxy compound represented by following Formula (2): R5OH??(2) wherein R5 is an organic group, in the presence of at least one transition element compound to thereby yield a vinyl ether compound represented by following Formula (3): wherein R2, R3, R4 and R5 have the same meanings as defined above. Such transition element compounds include iridium compounds and other compounds containing Group VIII elements.Type: GrantFiled: August 30, 2002Date of Patent: July 11, 2006Assignee: Daicel Chemical Industries, Ltd.Inventors: Yasutaka Ishii, Tatsuya Nakano, Keizo Inoue
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Patent number: 6835325Abstract: A crosslinking agent containing a polyallyl ether compound having at least one hydroxyl group derived from a glycidyl group and at least two allyl groups can be used for the production of a highly water-absorbing polymer comprising a polymerizable compound having a carbon-carbon double bond or a salt thereof, has a high solubility in aqueous solution of the monomer and gives a highly water-absorbing polymer having water absorptivity required at practical levels.Type: GrantFiled: April 19, 2002Date of Patent: December 28, 2004Assignee: Daiso Co., Ltd.Inventors: Shin-ichiro Nakamura, Yasumi Shimizu, Tohru Matsutomi
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Publication number: 20040092777Abstract: A method for producing an allyl compound having a compositional formula different from that of an allyl starting material compound, which comprises reacting the allyl starting material compound with an oxygen nucleophilic agent having a structure different from that of the allyl starting material compound in the presence of a catalyst containing at least one transition metal compound containing a transition metal selected from the group consisting of transition metals belonging to Group 8 to Group 10 of the Periodic Table and a monodentate phosphite compound having a structure of the following formula (1):Type: ApplicationFiled: August 28, 2003Publication date: May 13, 2004Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Masaki Takai, Yoshiyuki Tanaka
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Publication number: 20030114715Abstract: Alkenyl ethers are prepared by reacting the corresponding alcohols or phenols with acetylenes in the liquid phase in the presence of basic alkali metal compounds and a cocatalyst comprising compounds of the formula (Ia) and/or (Ib)Type: ApplicationFiled: October 3, 2002Publication date: June 19, 2003Inventors: Arnd Boettcher, Rolf Pinkos, Rudolf Erich Lorenz
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Publication number: 20030105354Abstract: A continuous processs for the preparation of O—, S— and N-alkenyl compounds by reaction of the corresponding OH, SH or NH compound with an acetylene in the liquid phase in the presence of basic alkali or alkaline earth metal compounds at from 40 to 300° C. and from 0.11 to 5 MPa absolute comprises continuously feeding the corresponding OH, SH or NH compound and the acetylene and operating at a conversion of the corresponding OH, SH or NH compound of ≧90%.Type: ApplicationFiled: December 4, 2002Publication date: June 5, 2003Inventors: Rolf Pinkos, Rudolf Erich Lorenz
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Patent number: 6504064Abstract: Enol ethers of the formula (I) where R1 to R3 are each, independently of one another, hydrogen or a carbon-containing organic radical and R4 is an unsubstituted or substituted alkyl radical, are prepared by reacting alcohols of the formula (II) R4—OH (II), with alkynes of the formula (IlIa), alkadienes of the formula (IIIb) R1—C≡C—CHR2R3 (IIIa), R1—CH═C═CR2R3 (IIIb) or mixtures thereof, where R1 to R4 are as defined above, in the presence of an alkali metal alkoxide and a polar, aprotic solvent.Type: GrantFiled: June 21, 2001Date of Patent: January 7, 2003Assignee: BASF AktiengesellschaftInventors: Jochem Henkelmann, Heike Becker, Juan Aiscar, Boris A. Trofimov, Nina K. Gusarova, Ludmilla A. Oparina
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Publication number: 20020091281Abstract: The present invention is related to a process for telomerizing a conjugated diene which comprises reacting said conjugated diene with a compound containing active hydrogen in the presence of a catalyst system comprising at least one transition metal compound, at least one phosphorus-containing compound, and at least one salt which forms a liquid under the conditions of the telomerization process.Type: ApplicationFiled: October 22, 2001Publication date: July 11, 2002Applicant: Celanese Chemicals Europe GmbHInventors: Yves Chauvin, Lionel Magna, Gerald Peter Niccolai, Jean-Marie Basset
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Patent number: 6207845Abstract: An aluminum compounds represented by the following general formula (1): Al(R1—SO3)1(R2)m(R3)n (1) wherein R1 is a hydrocarbon group which may be substituted, R2 is a hydrocarbon group which may be substituted, an aliphatic hydrocarbonoxy group which may be substituted, or a halogen atom, R3 is an aromatic hydrocarbonoxy group which may be substituted, and 1, m and n are independently a number of 0 to 3, with the proviso that 1+m+n equals 3, and 1 is not 0, an acid catalyst comprising the aluminum compound, and a process for producing an ester, acetal, ketal, ether or alkyl glycoside making use of the catalyst. The catalyst is suitable for use in a variety of acid-catalyzed reactions of alcohols, i.e., reactions with carbonyl compounds, such as esterification, transesterification, acetalization and ketalization, etherification, ring-opening reactions of epoxy compounds, etc.Type: GrantFiled: November 1, 1999Date of Patent: March 27, 2001Assignee: Kao CorporationInventors: Munehisa Okutsu, Tomohito Kitsuki, Katsumi Kita
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Patent number: 5723685Abstract: The preparation of monovinyl ethers of the general formula I ##STR1## in which A stands for a chemical bond or for a methylene or ethylene group, the radicals R.sup.1 and R.sup.2 independently stand for hydrogen, alkyl, cycloalkyl, or aryl groups or R.sup.1 and R.sup.2 together form a C.sub.3 -C.sub.5 alkylene bridging member, by the reaction of a diol of the general formula II ##STR2## in which the variables have the above meanings, with acetylene in the presence of a base, in which the reaction is carried out at 150.degree.-250.degree. C. under an acetylene partial pressure of 5-25 bar until 40-80% of the diol has been converted, at which point the reaction is stopped and the monovinyl ether of the formula I is isolated.Type: GrantFiled: October 26, 1995Date of Patent: March 3, 1998Assignee: BASF AktiengesellschaftInventors: Marc Heider, Thomas Ruhl, Herbert Helfert, Martin Schmidt-Radde, Jochem Henkelmann
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Patent number: 5609654Abstract: A process for production of alkyl tertiary alkyl ethers in C.sub.4 + hydrocarbon streams rich in isoolefins, typically containing catalyst deactivating amounts of dienes and/or compounds containing heteroatoms. The process is especially advantageous in extending the cycle length for the zeolite catalyzed etherification of isoolefins in C.sub.4 + FCC gasoline by reducing catalyst aging. It has been discovered that if hydrogen is cofed with the alkanol and C.sub.4 + isoolefin rich feedstreams to an etherification reaction catalyzed by acidic zeolite wherein the zeolite has been impregnated with a noble metal the rate of catalyst aging or deactivation is substantially lowered. The process is especially effective, i.e., catalyst aging is particularly reduced, when hydrogen is cofed to an etherification reaction using acidic zeolite Beta catalyst containing palladium.Type: GrantFiled: May 31, 1995Date of Patent: March 11, 1997Assignee: Mobil Oil CorporationInventors: Quang N. Le, Robert T. Thomson
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Patent number: 5600045Abstract: A process for conversion of crude hydrocarbon mixtures comprising tertiary olefins and gum-forming constituents with an alcohol in the presence of hydrogen, which process comprises contacting the crude hydrocarbon mixture, the alcohol, and hydrogen with a catalyst comprising an acidic molecular sieve containing an active hydrogenation metal component, as well as a stabilized crude hydrocarbon mixture containing alkyl tertiary alkyl ethers. A process for conversion of a tertiary olefin which contains one or more additional ethylenically or acetylenically unsaturated bonds.Type: GrantFiled: December 2, 1993Date of Patent: February 4, 1997Assignee: The Dow Chemical CompanyInventors: Matheus J. Van Der Aalst, Levien J. Everaert, Juan M. Garces
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Patent number: 5489719Abstract: A process is disclosed for the production of alkyl tertiary alkyl ethers in C.sub.4 + hydrocarbon streams rich in isoolefins, typically containing catalyst deactivating amounts of dienes and/or compounds containing heteroatoms. The process is especially advantageous in extending the cycle length for the zeolite catalyzed etherification of isoolefins in C.sub.4 + FCC gasoline by reducing catalyst aging. It has been discovered that if hydrogen is cofed with the alkanol and C.sub.4 + isoolefin rich feedstreams to an etherification reaction catalyzed by acidic zeolite wherein the zeolite has been impregnated with a noble metal the rate of catalyst aging or deactivation is substantially lowered. The process is especially effective, i.e., catalyst aging is particularly reduced, when hydrogen is cofed to an etherification reaction using acidic zeolite Beta catalyst containing palladium.Type: GrantFiled: June 6, 1994Date of Patent: February 6, 1996Assignee: Mobil Oil CorporationInventors: Quang N. Le, Robert T. Thomson
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Patent number: 4721820Abstract: A process for isomerizing allylic ethers is disclosed. In this process a compound having the structural formulaCH.sub.2 .dbd.CH--CH(OR)--R.sup.1where R is hydrocarbyl; and R.sup.1 is an organo group is contacted with a hydroxy-containing compound and a catalytically effective amount of a catalyst selected from the group consisting of cupric chloride, cupric bromide, a mixture of cupric chloride and palladium chloride, a mixture of cupric chloride and palladium bromide, a mixture of cupric bromide and palladium chloride and a mixture of cupric bromide and palladium bromide whereby a compound having the structural formulaRO--CH.sub.2 --CH.dbd.CH--R.sup.1where R and R.sup.1 have the meanings given above is formed.Type: GrantFiled: December 22, 1986Date of Patent: January 26, 1988Assignee: National Distillers and Chemical CorporationInventor: Ronnie M. Hanes
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Patent number: 4393249Abstract: A process for removing alkynes from hydrocarbon mixtures, particularly those containing butadiene by reacting the alkynes with hydroxyl group containing organic compounds in the presence of a silver exchanged ion-exchange resin and separating the products formed from the unreacted components of said mixture.Type: GrantFiled: October 23, 1981Date of Patent: July 12, 1983Assignee: The Dow Chemical CompanyInventors: Albert Heuvelsland, Fritz F. F. Jann, Greet de Block-Martens