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    • 1. 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。
    • 4. 发明授权
    • Process for the production of dialkyl carbonate and alkanediol
    • 生产碳酸二烷基酯和链烷二醇的方法
    • US07763745B2
    • 2010-07-27
    • US11678008
    • 2007-02-22
    • Evert Van Der HeideTimothy Michael NisbetGaro Garbis Vaporciyan
    • Evert Van Der HeideTimothy Michael NisbetGaro Garbis Vaporciyan
    • C07C69/96
    • C07C68/065C07C29/128C07C68/08Y02P20/127Y02P20/142C07C69/96C07C31/205
    • An alkylene carbonate and an alkanol are subjected to transesterification to yield a dialkyl carbonate and alkanediol in a process comprising (a) introducing the alkylene carbonate and an alkanol feedstock into a reaction zone to react in the presence of a transesterification catalyst to yield an alkanediol-rich stream and a stream comprising dialkyl carbonate and alkanol, which streams are separated; (b) passing the stream comprising dialkyl carbonate and alkanol to an extractive distillation zone in which an extractant is added to the stream; (c) obtaining from the extractive distillation zone an alkanol-rich vapor stream and a bottom stream containing the extractant and the dialkyl carbonate; (d) separating the bottom stream from step (c) in a second non-extractive distillation zone to yield a dialkyl carbonate-rich top stream and a extractant-rich bottom stream; and (e) at least partly recycling the extractant-rich bottom stream to the extractive distillation zone, wherein the extractant-rich bottom stream is used as heat source for the alkanol feedstock.
    • 碳酸亚烷基酯和链烷醇进行酯交换反应,得到碳酸二烷基酯和链烷二醇,该方法包括(a)将碳酸亚烷基酯和链烷醇原料引入反应区,在酯交换催化剂的存在下进行反应,得到链烷二醇 - 富含物流和包含碳酸二烷基酯和链烷醇的物流,所述物流被分离; (b)将包含碳酸二烷基酯和链烷醇的料流送入萃取蒸馏区,其中将萃取剂加入料流中; (c)从萃取蒸馏区获得富链烷醇蒸气流和含有萃取剂和碳酸二烷基酯的底部料流; (d)在第二非萃取蒸馏区中将步骤(c)的塔底物流分离,得到富含二烷基碳酸盐的顶部物流和富含萃取剂的塔底物流; 和(e)至少部分地将萃取剂富集底部物流再循环到萃取蒸馏区,其中富萃取剂底部料流用作链烷醇原料的热源。
    • 5. 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
    • US07732630B2
    • 2010-06-08
    • US12017296
    • 2008-01-21
    • Timothy Michael NisbetGaro Garbis VaporciyanCornelis Leonardus Maria VrouwenvelderPaul Wood
    • Timothy Michael NisbetGaro Garbis VaporciyanCornelis Leonardus Maria VrouwenvelderPaul Wood
    • C07C69/96
    • C07C68/065Y02P20/127C07C69/96
    • An alkanediol and a dialkyl carbonate are prepared in a process comprising: (a) reacting an alkylene carbonate and an alkanol feedstock in a reaction zone under transesterification conditions to obtain a product mixture of dialkyl carbonate, unconverted alkanol, the alkanediol, and unconverted alkylene carbonate; (b) separating dialkyl carbonate and unconverted alkanol from the product mixture to obtain a bottom product stream containing alkanediol and unconverted alkylene carbonate; (c) recovering the dialkyl carbonate; and (d) separating alkanediol from the bottom product stream to leave a recycle stream comprising unconverted alkylene carbonate, wherein the recycle stream comprising unconverted alkylene carbonate is split in at least two portions, and at least one portion is recycled to the reaction zone and another portion is subjected to hydrolysis to yield alkanediol and carbon dioxide.
    • 制备烷基二醇和碳酸二烷基酯的方法包括:(a)在酯交换条件下使反应区中的碳酸亚烷基酯和链烷醇原料反应,得到碳酸二烷基酯,未转化的链烷醇,链烷二醇和未转化的碳酸亚烃酯的产物混合物 ; (b)从产物混合物中分离出碳酸二烷基酯和未转化的链烷醇,得到含有链烷二醇和未转化的碳酸亚烃酯的底部产物流; (c)回收碳酸二烷基酯; 和(d)从底部产物流分离链烷二醇以留下包含未转化的碳酸亚烃酯的再循环料流,其中包含未转化的碳酸亚烃酯的再循环料流至少分成两部分,并且至少一部分再循环至反应区,另一部分再循环至反应区 部分水解,得到链烷二醇和二氧化碳。
    • 6. 发明申请
    • PROCESS FOR THE PREPARATION OF A DIARYL CARBONATE
    • 制备二氧化碳的方法
    • US20090131706A1
    • 2009-05-21
    • US12194422
    • 2008-08-19
    • Garo Garbis VAPORCIYAN
    • Garo Garbis VAPORCIYAN
    • C07C68/06
    • C07C68/06C07C67/02C07C67/055C07C69/14C07C69/017C07C69/96C07C69/157
    • The invention relates to a process for the preparation of a diaryl carbonate, which comprises: (i) contacting an aromatic non-hydroxy compound with a carboxylic acid of formula HOC(═O)R1 (I), wherein R1 is a hydrocarbyl group, and with an oxygen containing gas in the presence of a catalyst, resulting in water and an aromatic carboxylic acid ester of formula R2OC(═O)R1 (II), wherein R2 is an aryl group originating from the aromatic non-hydroxy compound; and (ii) contacting the aromatic carboxylic acid ester of formula (II) from step (i) with a dialkyl carbonate of formula R3OC(═O)OR4 (III), wherein R3 and R4 are the same or different and are alkyl groups, in the presence of a catalyst, resulting in a diaryl carbonate of formula R2OC(═O)OR2 (IV) and an alkyl carboxylic acid ester of formula R5OC(═O)R1 (V), wherein R5 is R3 or R4.
    • 本发明涉及一种制备碳酸二芳基酯的方法,其包括:(i)使芳族非羟基化合物与式HOC(-O)R 1(I)的羧酸接触,其中R1是烃基, 并在催化剂存在下与含氧气体反应,得到水和式R 2 OC(-O)R 1(II)的芳族羧酸酯,其中R 2是源自芳族非羟基化合物的芳基; 和(ii)使来自步骤(i)的式(II)的芳族羧酸酯与式R 3 OC(-O)OR 4(III)的碳酸二烷基酯接触,其中R 3和R 4相同或不同,并且是烷基, 在存在催化剂的情况下,得到式R 2 OC(-O)OR 2(IV)的碳酸二芳基酯和式R 5 OC(-O)R 1(V)的烷基羧酸酯,其中R 5是R 3或R 4。
    • 9. 发明授权
    • Process for producing alkylene oxide
    • 环氧烷生产方法
    • US07193093B2
    • 2007-03-20
    • US10872849
    • 2004-06-21
    • Brendan Dermot MurrayGaro Garbis Vaporciyan
    • Brendan Dermot MurrayGaro Garbis Vaporciyan
    • C07D301/19
    • C07D301/19Y02P20/127
    • A process for preparing an alkylene oxide, which process comprises: (i) oxidizing an alkylbenzene to obtain a stream comprising alkylbenzene hydroperoxide, (ii) contacting at least part of the alkylbenzene hydroperoxide obtained in step (i) with an olefin to obtain a product stream comprising an alkylene oxide (iii) separating alkylene oxide compound from the product stream of step (ii) to obtain (a) a residual product stream comprising alkylphenyl alcohol, and (b) alkylene oxide, (iv) feeding at least a part of the residual product stream comprising alkylphenyl alcohol to a reactor having a catalytic distillation zone, and concurrently in the reactor, (a) contacting the residual product stream comprising alkylphenyl alcohol with hydrogen in the catalytic distillation zone to convert the alkylphenyl alcohol in the residual product stream to alkylbenzene and form a reaction mixture, and (b) separating alkylbenzene from the reaction mixture by fractional distillation, (v) withdrawing a stream comprising alkylbenzene and having a reduced concentration of alkylphenyl alcohol than the feed stream from the reactor at a position upper from the catalytic reaction zone; (vi) withdrawing from the reactor at a position lower than the catalytic distillation zone a bottom stream comprising dimer(s) of alkylbenzene; (vii) converting the dimer(s) of alkylbenzene in the bottom stream from (vi) to alkylbenzene; and (viii) recycle at least a part of the alkylbenzene produced from (iv)(b) and/or (vi) to step (i).
    • 一种制备环氧烷的方法,该方法包括:(ⅰ)氧化烷基苯以获得包含烷基苯氢过氧化物的物流,(ⅱ)将步骤(ⅰ)中获得的烷基苯氢过氧化物的至少一部分与烯烃接触,得到产物 包含环氧烷的物流(iii)将烯化氧化合物与步骤(ii)的产物流分离,得到(a)包含烷基苯基醇的残余产物流,和(b)烯化氧,(iv)将至少一部分 残余产物流包含烷基苯醇至具有催化蒸馏区的反应器,并且同时在反应器中,(a)在催化蒸馏区中使包含烷基苯基醇的残余产物流与氢接触以将残余产物流中的烷基苯醇 形成反应混合物,和(b)通过分馏从反应混合物中分离出烷基苯,(v)作为 包含烷基苯并且具有降低的烷基苯醇浓度比来自反应器的进料流在催化反应区上方的位置; (vi)在低于催化蒸馏区的位置从反应器中排出包含烷基苯二聚体的底部流; (vii)将底部物流中烷基苯的二聚体从(vi)转化为烷基苯; 和(viii)将从(iv)(b)和/或(vi)至(ⅰ)产生的至少一部分烷基苯再循环。