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    • 1. 发明授权
    • Process for the production of cyclohexanedimethanol
    • 环己烷二甲醇生产方法
    • US5387752A
    • 1995-02-07
    • US174321
    • 1993-12-30
    • John ScarlettMichael A. WoodColin Rathmell
    • John ScarlettMichael A. WoodColin Rathmell
    • B01J23/86C07B61/00C07C29/136C07C29/149C07C31/27
    • C07C31/276C07C29/149C07C2101/14
    • A process is described for the production of cyclohexanedimethanol by hydrogenation of a dialkyl cyclohexanedicarboxylate which comprises:(a) providing a hydrogenation zone containing a charge of a granular heterogeneous ester hydrogenation catalyst;(b) forming a vaporous feed stream of a hydrogen-containing gas,and a hydrogenatable material comprising a dialkyl cyclohexanedicarboxylate at a feed temperature which is in the range of from about 150.degree. C. to about 350.degree. C. and which is above the dew point of the feed stream and at a feed pressure in the range of from about 150 psia (about 10.34 bar) to about 2000 psia (about 137.90 bar), said vaporous feed stream having a known hydrogen-containing gas:dialkyl cyclohexanedicarboxylate ratio;(c) supplying the vaporous feed stream to the hydrogenation zone;(d) maintaining hydrogenation conditions in the hydrogenation zone which are effective to maintain the reaction mixture in contact with the hydrogenation catalyst above its dew point;(e) passing the vaporous feed stream through the hydrogenation zone; and(f) recovering from the hydrogenation zone a product stream containing cyclohexanedimethanol.In this process it is preferred to use dimethyl 1,4-cyclohexanedicarboxylate to produce 1,4-cyclohexanedimethanol.
    • 描述了通过氢化环己烷二羧酸二烷基酯制备环己烷二甲醇的方法,其包括:(a)提供含有粒状异质酯加氢催化剂装料的氢化区; (b)在约150℃至约350℃的进料温度下形成含氢气体的蒸气进料流和包含环己烷二羧酸二烷基酯的可加氢材料,其高于 进料流的露点和进料压力在约150psia(约10.34巴)至约2000psia(约137.90巴)的范围内,所述气态进料流具有已知的含氢气体:环己烷二羧酸二烷基酯比; (c)将蒸气进料流供应到氢化区; (d)保持加氢区中的氢化条件,其有效地使反应混合物与氢化催化剂接触高于其露点; (e)使蒸汽进料流通过氢化区; 和(f)从氢化区回收含有环己烷二甲醇的产物流。 在该方法中,优选使用1,4-环己烷二羧酸二甲酯来制备1,4-环己烷二甲醇。
    • 3. 发明授权
    • Process for the production of a dialkyl maleate
    • 马来酸二烷基酯的制备方法
    • US4765869A
    • 1988-08-23
    • US80058
    • 1987-07-31
    • Norman HarrisColin RathmellKeith TurnerJohn Scarlett
    • Norman HarrisColin RathmellKeith TurnerJohn Scarlett
    • C07C67/60C07C67/08C07C67/54C07C69/60B01D3/14
    • C07C67/08C07C67/54Y10S203/20
    • A continuous process is described for the production of a substantially acid free dialkyl maleate, for example diethyl maleate, from a feed stream containing a major amount of dialkyl maleate and a minor amount of the corresponding monoalkyl maleate. This comprises continuously distilling the feed stream in a primary distillation zone, which can comprise a single distillation column or a series of distillation columns connected in series, so as to give (i) a bottom fraction containing monoalkyl maleate and dialkyl maleate in admixture, (ii) a vaporous fraction comprising alkanol, and (iii) an intermediate fraction that is substantially free from alkanol and comprises a major proportion of diethyl maleate and a minor proportion of maleic anhydride. The intermediate fraction (iii) is redistilled in a secondary distillation zone to yield (i) an overhead fraction containing maleic anhydride and (ii) a bottom fraction containing substantially acid free dialkyl maleate. The vaporous stream can be condensed to recover alkanol for recycle to a dialkyl maleate production facility.
    • 描述了从含有主要量的马来酸二烷基酯和少量相应的马来酸单烷基酯的进料流中生产基本上无酸的马来酸二烷基酯,例如马来酸二乙酯的连续方法。 这包括在主蒸馏区中连续蒸馏进料流,该蒸馏区可以包括单个蒸馏塔或串联连接的一系列蒸馏塔,从而得到(i)含有马来酸单烷基酯和马来酸二烷基酯的底部馏分的混合物( ii)包含链烷醇的蒸气馏分,和(iii)基本上不含链烷醇并包含主要比例的马来酸二乙酯和少量马来酸酐的中间馏分。 中间馏分(iii)在二次蒸馏区中重蒸馏,得到(i)含有马来酸酐的塔塔馏分和(ii)含有基本上无酸的马来酸二烷基酯的塔底馏分。 可以将气态物流冷凝以回收链烷醇以再循环至马来酸二烷基酯生产设备。
    • 4. 发明授权
    • Process for preparing pentane-1,5-diol
    • 戊烷-1,5-二醇的制备方法
    • US06265624B1
    • 2001-07-24
    • US09553255
    • 2000-04-19
    • John ScarlettMichael Anthony WoodPaul Willett
    • John ScarlettMichael Anthony WoodPaul Willett
    • C07C3118
    • C07C29/80C07C29/149C07C31/20C07C31/207
    • A process is described for the continuous recovery of substantially pure pentane-1,5-diol from a crude product stream (1) containing pentane-1,5-diol and &dgr;-valerolactone. The feed stream (1) is continuously supplied to a vaporization zone (2) maintained under temperature and pressure conditions effective for the vaporization of pentane-1,5-diol and conducive to the thermal decomposition of reaction products of &dgr;-valerolactone thereby to form a vaporous stream. The resulting vaporous stream is continuously supplied to an intermediate section of a distillation zone (4). A reflux stream (5) of dimethyl glutarate is fed to an upper section of the distillation zone (4) and an overhead vapor product stream (8) comprising &dgr;-valerolactone and dimethyl glutarate is taken. Also an intermediate stream (11) comprising substantially pure pentane-1,5-diol is taken from the distillation zone (4), while from the bottom section of the distillation zone there is recovered a bottoms product (12).
    • 描述了从含有戊烷-1,5-二醇和δ-戊内酯的粗产物流(1)连续回收基本上纯的戊烷-1,5-二醇的方法。 进料流(1)被连续地供给到维持在用于蒸发戊烷-1,5-二醇的有效温度和压力条件下的蒸发区(2),并且有利于δ-戊内酯的反应产物的热分解从而形成 蒸汽流。 将所得蒸气流连续地供应到蒸馏区(4)的中间段。 将戊二酸二甲酯的回流(5)加入到蒸馏区(4)的上部,并取出包含δ-戊内酯和戊二酸二甲酯的塔顶蒸气产物流(8)。 此外,从蒸馏区(4)取出基本上纯的戊烷-1,5-二醇的中间物流(11),而从蒸馏区的底部部分回收塔底产物(12)。
    • 5. 发明授权
    • Production of carboxylic acid ester by esterification and apparatus
thereof
    • 通过酯化制备羧酸酯及其装置
    • US5536856A
    • 1996-07-16
    • US200314
    • 1994-02-23
    • George E. HarrisonJohn ScarlettMichael A. WoodDonald H. McKinley
    • George E. HarrisonJohn ScarlettMichael A. WoodDonald H. McKinley
    • B01D3/16B01D3/18B01D3/20B01J8/22C07C67/08C07C69/22C11C1/00
    • C07C67/08B01D3/163B01D3/18B01D3/20B01J8/226
    • Esterification is carried out in a column reactor (14) in which there is a plurality of esterification trays (15) each having predetermined liquid hold-up and containing a charge of a solid esterification catalyst thereon. e.g. an ion exchange resin containing a --SO.sub.3 H and/or --COOH groups. A liquid phase containing the carboxylic acid component, e.g. a fatty acid mixture, flows down the column reactor from one esterification tray to the next downward one against an upflowing alcohol vapour stream, e.g. methanol vapour. Relatively dry alcohol vapour is injected (21) into the bottom of the column reactor. Water of esterification is removed from the top of the column reactor in the vapour stream (26), whilst ester product is recovered (23) from the sump of the reactor. As the liquid flows down the trays it encounters progressively drier alocohol and the esterification equilibrium reaction is driven further and further towards 100% ester formation. A polishing reactor (304) operated under liquid phase conditions may follow the column reactor, the ester-containing product from which is mixed with further alcohol before admission to the polishing reactor.
    • 酯化在柱反应器(14)中进行,其中存在多个具有预定液体滞留并在其上含有固体酯化催化剂的酯化塔板(15)。 例如 含有-SO 3 H和/或-COOH基团的离子交换树脂。 含有羧酸组分的液相,例如 脂肪酸混合物从塔式反应器中流出,从一个酯化塔板向下流动的醇蒸气流, 甲醇蒸气。 将相对干燥的醇蒸汽(21)注入塔式反应器的底部。 在蒸馏物流(26)中从塔式反应器的顶部除去酯化水,同时从反应器的贮槽回收酯产物(23)。 当液体向下流动时,它遇到逐渐干燥的醇,酯化平衡反应进一步向100%酯形成。 在液相条件下操作的抛光反应器(304)可以在塔式反应器之后,含酯产物在进入抛光反应器之前与另外的醇混合。
    • 6. 发明授权
    • Process for the production of alcohols and diols
    • 制备醇和二醇的方法
    • US5395991A
    • 1995-03-07
    • US175545
    • 1993-12-30
    • John ScarlettMichael W. M. TuckMichael A. Wood
    • John ScarlettMichael W. M. TuckMichael A. Wood
    • C07C29/136C07B61/00C07C29/149C07C31/02C07C31/20C07C31/27C07C29/147C07C27/04C07C29/143
    • C07C29/149C07C31/276C07C2101/14Y02P20/584
    • A hydrogenation process is described for the production of a hydroxylic compound selected from alcohols and diols by hydrogenation of a corresponding unsaturated organic compound selected from esters, diesters and lactones which involves use of two hydrogenation zones (11, 36), each containing a charge of a hydrogenation catalyst (12, 37). In a first phase of operation one of the hydrogenation zones (36 or 11) is in standby condition and a stream of hot hydrogen-containing gas is passed therethrough. Meanwhile a vaporous feed stream comprising a hydrogen-containing gas and the unsaturated organic compound to be hydrogenated, e.g. dimethyl 1,4-cyclohexanedicarboxylate, is fed to the active zone (11 or 36). This feed stream can include the gas stream from the first mentioned hydrogenation zone (36 or 11). In a second phase of operation the roles of the reactors (11, 36) are switched so that the zone (36 or 11) previously in reactivation condition becomes the active zone whilst the zone that was formerly active (11 or 36) goes into reactivation condition and its partially deactivated catalyst charge is reactivated by the hot hydrogen-containing gas stream.
    • 描述了氢化方法,用于通过氢化选自酯,二酯和内酯的相应的不饱和有机化合物来制备选自醇和二醇的羟基化合物,其包括使用两个氢化区(11,36),每个含有 氢化催化剂(12,37)。 在第一阶段的操作中,一个氢化区(36或11)处于待机状态,热的含氢气体流通过。 同时,包含含氢气体和待氢化的不饱和有机化合物的气态进料流,例如。 1,4-环己烷二羧酸二甲酯进料到活性区(11或36)。 该进料流可以包括来自第一个所述氢化区(36或11)的气流。 在第二阶段操作中,反应器(11,36)的作用被切换,使得先前处于再活化状态的区域(36或11)变为活性区域,而先前有活性的区域(11或36)进入再活化 条件和其部分失活的催化剂装料通过含氢气的气流再活化。
    • 7. 发明授权
    • Process for the production of alcohols and diols
    • 制备醇和二醇的方法
    • US5395990A
    • 1995-03-07
    • US175542
    • 1993-12-30
    • John Scarlett
    • John Scarlett
    • B01J23/78B01J23/80B01J23/86B01J23/889B01J27/224C07B61/00C07C29/141C07C29/145C07C29/149C07C31/27C07C29/147C07C27/04C07C29/14
    • C07C31/276C07C29/149C07C2101/14
    • A process is described for the production of a hydroxylic compound selected from alcohols and diols by hydrogenation of a hydrogenatable material selected from monoesters of carboxylic acids, monoesters of dicarboxylic acids, diesters of dicarboxylic acids, aldehydes, olefinically unsaturated aldehydes, and mixtures of two or more thereof, which process comprises the steps of:(a) providing a hydrogenation zone containing a charge of a granular hydrogenation catalyst which has a total surface area of at least about 15 m.sup.2 /g, a pore size distribution such that more than 50% of the pore volume is provided by pores in the size range less than about 40 nm, and a surface area distribution such that more than 50% of the total surface area is provided by pores in the size range of from about 7 nm to about 40 nm;(b) supplying to the hydrogenation zone a feed stream of a mixture containing hydrogen and the hydrogenatable material;(c) maintaining the hydrogenation zone under temperature and pressure conditions which are conducive to effecting hydrogenation of the hydrogenatable material; and(d) recovering from the hydrogenation zone a product stream comprising the hydroxylic compound.The process is exemplified by the hydrogenation of dimethyl 1,4-cyclohexanedicarboxylate to yield 1,4-cyclohexanedimethanol.
    • 描述了通过氢化可选择的羧酸单羧酸,二羧酸单酯,二羧酸二酯,醛,烯属不饱和醛的可氢化材料以及两种或两种以上的混合物来制备选自醇和二醇的羟基化合物的方法 该方法包括以下步骤:(a)提供含有粒状氢化催化剂装料的氢化区,其具有至少约15m 2 / g的总表面积,孔径分布使得大于50% 的孔体积由小于约40nm的尺寸范围的孔提供,并且表面积分布使得总表面积的大于50%由尺寸范围为约7nm至约40的孔提供 nm; (b)向氢化区供应含有氢和可加氢材料的混合物的进料流; (c)在有利于可氢化材料的氢化的温度和压力条件下保持氢化区; 和(d)从氢化区回收包含羟基化合物的产物流。 该方法的实例是通过1,4-环己烷二羧酸二甲酯的氢化得到1,4-环己烷二甲醇。
    • 9. 发明授权
    • Sulfur dioxide removal process
    • 二氧化硫去除工艺
    • US4122148A
    • 1978-10-24
    • US678606
    • 1976-04-20
    • Norman E. NicholsonJohn Scarlett
    • Norman E. NicholsonJohn Scarlett
    • B01D53/50B01D53/77C01B17/60C01B17/64C01B17/00C01B15/08C01D7/00
    • B01D53/501C01B17/60
    • Sodium thiosulfate is purged from a sulfur dioxide removal system involving contact of a sulfur dioxide-containing gas with a solution containing sodium sulfite to absorb sulfur dioxide from the gas. A portion of the liquid from a desorption zone containing a minor amount of sodium thiosulfate and a relatively large amount of sodium bisulfite, is treated to reduce the amount of water in the medium so that solids are precipitated from the liquid phase. The insolubles containing sodium sulfites are removed from the liquid. The liquid separated from the solids can be discarded and thereby purge thiosulfate more selectively with respect to other sodium salts. Also, the sodium values of the sodium thiosulfate-containing purge liquid can be recovered in active form by chemical reduction, and, preferably, carbonation. A sodium sulfate purge material from the absorption-desorption system can also be subjected to the chemical reduction system for further recovery of active sodium values.
    • 硫代硫酸钠从二氧化硫去除系统中清除,包括含二氧化硫的气体与含有亚硫酸钠的溶液接触,以从气体中吸收二氧化硫。 处理来自含有少量硫代硫酸钠和相对大量的亚硫酸氢钠的解吸区的一部分液体,以减少介质中的水量,使得固体从液相中沉淀出来。 从液体中除去含有亚硫酸钠的不溶物。 从固体中分离的液体可以被丢弃,从而相对于其它钠盐更有选择地清除硫代硫酸盐。 此外,含硫代硫酸氢钠的清洗液的钠值可以通过化学还原,优选碳酸化而以活性形式回收。 来自吸收 - 解吸系统的硫酸钠清除材料也可以进行化学还原体系以进一步回收活性钠值。
    • 10. 发明授权
    • Process for the production of cyclohexanedimethanol
    • 环己烷二甲醇生产方法
    • US5395986A
    • 1995-03-07
    • US174314
    • 1993-12-30
    • John ScarlettMichael A. Wood
    • John ScarlettMichael A. Wood
    • B01J23/42B01J23/44B01J23/60B01J23/72B01J23/86B01J23/889C07B53/00C07B61/00C07C29/149C07C31/27
    • C07C29/149C07C31/276C07C2101/14
    • A process is described for the production of cyclohexanedimethanol having a trans-:cis-isomer ratio greater than about 1:1 by hydrogenation of a dialkyl (e.g. dimethyl) cyclohexanedicarboxylate having a trans-:cis-isomer ratio less than about 1:1 which comprises:(a) providing a hydrogenation zone containing a charge of a granular heterogeneous ester hydrogenation catalyst;(b) supplying to the hydrogenation zone a vaporous feed stream containing hydrogen and a hydrogenarable material comprising a dialkyl cyclohexanedicarboxylate at an inlet temperature which is above its dew point of the mixture;(c) maintaining the hydrogenation zone under temperature and pressure conditions which are conducive to effecting hydrogenation of esters;(d) passing the vaporous feed stream through the hydrogenation zone; and(e) recovering from the hydrogenation zone a product stream containing cyclohexanedimethanol having a trans-:cis-isomer ratio greater than 1:1.In this process it is preferred to use dimethyl 1,4-cyclohexanedicarboxylate to produce 1,4-cyclohexanedimethanol.
    • 描述了通过氢化具有反式 - 顺式异构体比例小于约1:1的二烷基(例如二甲基)环己烷二羧酸酯制备具有大于约1:1的反式 - 顺式 - 异构体比例的环己烷二甲醇的方法,其中 包括:(a)提供含有粒状非均相酯加氢催化剂装料的氢化区; (b)在高于其混合物露点的入口温度下向氢化区供应含有氢的气态进料流和包含环己烷二羧酸二烷基酯的可氢化材料; (c)在有利于酯化氢化的温度和压力条件下保持氢化区; (d)使蒸汽进料流通过氢化区; 和(e)从氢化区回收含有反式 - 顺式异构体比大于1:1的环己烷二甲醇的产物流。 在该方法中,优选使用1,4-环己烷二羧酸二甲酯来制备1,4-环己烷二甲醇。