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    • 4. 发明申请
    • PROCESS FOR PREPARING ALKANEDIOL AND DIALKYL CARBONATE
    • 制备阿尔卡尼和碳酸二乙酯的方法
    • US20100121078A1
    • 2010-05-13
    • US12435173
    • 2009-05-04
    • Cyrille Paul AllaisMinne BoelensEvert Van Der Heide
    • Cyrille Paul AllaisMinne BoelensEvert Van Der Heide
    • C07D317/10
    • C07C68/065C07C69/96
    • The invention relates to a process for the preparation of an alkanediol and a dialkyl carbonate comprising: (a) reacting an alkylene carbonate and an alkanol at a temperature of from 10 to 200° C., at a pressure of from 5×104 to 5×106 N/m2 and in the absence of a transesterification catalyst, to obtain a mixture comprising hydroxyalkyl alkyl carbonate, alkanol and alkylene carbonate; (b) contacting the mixture comprising hydroxyalkyl alkyl carbonate, alkanol and alkylene carbonate with a transesterification catalyst at a temperature of from 10 to 200° C. and at a pressure of from 5×104 to 5×106 N/m2, to obtain a mixture comprising the alkanediol and the dialkyl carbonate; and (c) recovering the alkanediol and the dialkyl carbonate from the mixture comprising the alkanediol and the dialkyl carbonate.
    • 本发明涉及一种制备链烷二醇和碳酸二烷基酯的方法,包括:(a)在10至200℃的温度下,在5×10 4至5的压力下使碳酸亚烷基酯和链烷醇反应 ×106N / m 2,并且在不存在酯交换催化剂的情况下,得到包含碳酸烷基酯,链烷醇和碳酸亚烷基酯的混合物; (b)使含碳酸烷基酯,链烷醇和碳酸亚烷基酯的混合物与酯交换催化剂在10〜200℃,压力为5×10 4〜5×10 6 N / m 2下接触,得到 包含链烷二醇和碳酸二烷基酯的混合物; 和(c)从包含链烷二醇和碳酸二烷基酯的混合物中回收链烷二醇和碳酸二烷基酯。
    • 6. 发明申请
    • PROCESS FOR THE PREPARATION OF ALKANEDIOL
    • 制备阿尔卡尼醇的方法
    • US20070203373A1
    • 2007-08-30
    • US11678009
    • 2007-02-22
    • Evert Van Der HeideCornelis Vrouwenvelder
    • Evert Van Der HeideCornelis Vrouwenvelder
    • C07C29/10
    • C07C29/12C07C68/065C07C31/202C07C31/205C07C69/96
    • The invention provides a process for the preparation of alkanediol comprising the steps: (i) contacting alkylene oxide with carbon dioxide in the presence of a carbonation catalyst to obtain a reaction mixture containing alkylene carbonate at a reaction temperature of from 100 to 200° C.; (ii) contacting the reaction mixture obtained in step (i) with R—OH, in which R is hydrogen or an alkyl group in the presence of a catalyst to obtain a second reaction mixture containing alkanediol and R2CO3; (iii) subjecting the second reaction mixture containing alkanediol and R2CO3 to a separation step to yield a crude alkanediol stream, which is subjected to distillation to yield a purified stream of alkanediol as the bottom stream; (iv) subjecting the purified stream of alkanediol obtained in step (iii) to further distillation to obtain a second bottom stream containing a mixture of alkanediol, heavy components, and optionally carbonation catalyst, and a top stream containing high purity alkanediol; wherein at least part of the reaction mixture obtained in step (i) is used for heat exchange with at least part of the crude alkanediol stream and/or with at least part of the purified alkanediol stream.
    • 本发明提供一种制备链烷二醇的方法,包括以下步骤:(i)在碳酸化催化剂存在下使环氧烷与二氧化碳接触,得到反应温度为100-200℃的含有碳酸亚烷基酯的反应混合物 ; (ii)在催化剂存在下使步骤(i)中获得的反应混合物与R-OH(其中R是氢或烷基)接触,得到含有链烷二醇和R 2的第二反应混合物 > CO 3 3; (iii)将含有链烷二醇和R 2 CO 3的第二反应混合物进行分离步骤以产生粗链烷二醇流,将其进行蒸馏以产生纯化的流 的链烷二醇作为底部流; (iv)使步骤(iii)中获得的纯化的烷烃二醇进一步蒸馏,得到含有链烷二醇,重组分和任选碳酸化催化剂的混合物的第二塔底料流和含有高纯度链烷二醇的顶流; 其中步骤(i)中获得的至少部分反应混合物用于与至少部分粗链烷二醇流和/或至少部分纯化的链烷二醇流进行热交换。
    • 7. 发明授权
    • Method for producing furfural from lignocellulosic biomass material
    • 从木质纤维素生物质材料生产糠醛的方法
    • US08901325B2
    • 2014-12-02
    • US12970131
    • 2010-12-16
    • Evert Van Der HeideTing Zhang
    • Evert Van Der HeideTing Zhang
    • C07D307/50C07D307/48
    • C07D307/48C07D307/50
    • A method for producing furfural from lignocellulosic biomass material is provided, comprising (a) contacting the lignocellulosic biomass material with a mixture comprising water and an organic acid at a temperature of at least 100° C. and a pressure of at most 10 bar (absolute) to obtain a first liquid stream comprising hydrolyzed hemicellulose and a second stream comprising lignin and cellulose; (b) maintaining the first liquid stream comprising hydrolyzed hemicellulose at a temperature of at least 130° C. to obtain a second liquid stream comprising furfural; and (c) separating the furfural obtained in step b) from the second liquid stream.
    • 提供了一种从木质纤维素生物质材料生产糠醛的方法,包括(a)在至少100℃的温度和至多10巴的压力(绝对值)下使木质纤维素生物质材料与包含水和有机酸的混合物接触 )以获得包含水解的半纤维素的第一液体流和包含木质素和纤维素的第二流; (b)在至少130℃的温度下保持包含水解半纤维素的第一液体流,以获得包含糠醛的第二液体流; 和(c)将步骤b)中获得的糠醛与第二液体流分离。
    • 8. 发明申请
    • PROCESS FOR THE PREPARATION OF A 1,2-ALKYLENE DIOL AND A DIALKYLCARBONATE
    • 制备1,2-亚苄基二醇和对二氯甲烷的方法
    • US20090270657A1
    • 2009-10-29
    • US12108299
    • 2008-04-23
    • Evert Van Der HeideCornelis Leonardus Maria Vrouwenvelder
    • Evert Van Der HeideCornelis Leonardus Maria Vrouwenvelder
    • C07C31/18
    • C07C68/065C07C69/96
    • The present invention relates to a process for the preparation of a 1,2-alkylene diol and a dialkylcarbonate, comprising the steps of (i) contacting a 1,2-alkylene oxide with carbon dioxide in the presence of a carbonation catalyst in a downflow jet reactor to obtain a reaction mixture containing a 1,2-alkylene carbonate, wherein the downflow jet reactor further comprises a deflection means situated in between the ejector means and the outlet means in the direction of the flow path of the gas/liquid mixture generated by the ejector means; (ii) contacting at least part of the reaction mixture obtained in step (i) with an alkanol to obtain a reaction mixture containing a 1,2-alkylene diol and a dialkylcarbonate; and (iii) recovering the 1,2-alkylene diol and the dialkylcarbonate from the reaction mixture obtained in step (ii).
    • 本发明涉及一种1,2-亚烷基二醇和碳酸二烷基酯的制备方法,包括以下步骤:(i)在碳酸化催化剂存在下使1,2-环氧烷与二氧化碳在下流 以获得含有1,2-亚烷基碳酸酯的反应混合物,其中所述下流喷射反应器还包括位于所述喷射装置和所述出口装置之间的偏转装置,所述偏转装置沿所述气/液混合物的流动路径的方向产生 通过喷射器装置; (ii)使步骤(i)中获得的反应混合物的至少一部分与链烷醇接触,得到含有1,2-亚烷基二醇和碳酸二烷基酯的反应混合物; 和(iii)从步骤(ii)中获得的反应混合物中回收1,2-亚烷基二醇和碳酸二烷基酯。
    • 9. 发明授权
    • Process for the preparation of an alkanediol and a dialkyl carbonate
    • 制备链烷二醇和碳酸二烷基酯的方法
    • US07563919B2
    • 2009-07-21
    • US11677999
    • 2007-02-22
    • Evert Van Der HeideTimothy Michael NisbetGaro Garbis Vaporciyan
    • Evert Van Der HeideTimothy Michael NisbetGaro Garbis Vaporciyan
    • C07C69/96C07C27/00
    • C07C68/065Y02P20/127C07C69/96
    • An alkanediol and a dialkyl carbonate are prepared in a process comprising: (a) contacting an alkylene carbonate with an alkanol feedstock under transesterification conditions in a reactive distillation zone to obtain a top stream comprising dialkyl carbonate and the alkanol and a bottom stream comprising an alkanediol; (b) separating the top stream comprising dialkyl carbonate and the alkanol into an alkanol-rich stream and a dialkyl carbonate-rich stream; (c) recovering the dialkyl carbonate from the dialkyl carbonate-rich stream; and (d) recycling at least part of the alkanol-rich stream to the reactive distillation zone as part of the alkanol feedstock, wherein the alkanol-rich stream is split in at least two portions, and at least one portion is condensed and freed from compounds with a lower boiling point than the alkanol. The process is especially suitable for the production of propylene glycol and dimethyl carbonate from propylene carbonate and methanol.
    • 制备烷基二醇和碳酸二烷基酯的方法包括:(a)在反应蒸馏区中在酯交换反应条件下使烯烃碳酸酯与链烷醇原料接触以获得包含碳酸二烷基酯和链烷醇的底部料流和包含链烷二醇 ; (b)将包含碳酸二烷基酯和链烷醇的顶部料流分离成富链烷醇流和富含碳酸二烷基酯的料流; (c)从富含碳酸二烷基酯的料流中回收碳酸二烷基酯; 和(d)作为链烷醇原料的一部分将至少部分富含链烷醇的料流再循环至反应性蒸馏区,其中富链烷醇流分成至少两部分,并且至少一部分被冷凝并从 沸点低于链烷醇的化合物。 该方法特别适用于从碳酸丙烯酯和甲醇生产丙二醇和碳酸二甲酯。