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    • 116. 发明授权
    • Process
    • 处理
    • US5414159A
    • 1995-05-09
    • US174320
    • 1993-12-30
    • Paul AppletonMichael A. Wood
    • Paul AppletonMichael A. Wood
    • B01J23/889C07B61/00C07C27/02C07C29/149C07C31/27C07C35/14C07C29/136C07C31/20
    • C07C35/14C07C29/149C07C2101/14
    • A process is described for the production of cyclohexanedimethanol by hydrogenation of a dialkyl cyclohexanedicarboxylate which comprises the steps of:(a) providing a hydrogenation zone containing a charge of a granular reduced manganese promoted copper catalyst;(b) forming a vaporous feed stream of a hydrogenatable material comprising a dialkyl cyclohexanedicarboxylate and from about 0.1 wt % up to about 15 wt % of an acidic material 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 which is in the range of from about 150 psia (about 10.34 bar) up to about 2000 psia (about 137.90 bar), said vaporous mixture 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 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 comprising 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,该方法包括以下步骤:(a)提供含有粒状还原锰促进铜催化剂装料的氢化区; (b)在约150℃至约20℃的进料温度下,形成包含环己烷二羧酸二烷基酯和约0.1重量%至约15重量%酸性物质的可氢化材料的气态进料流 350℃,高于进料流的露点,进料压力在约150psia(约10.34巴)至约2000psia(约137.90巴)的范围内,所述蒸气混合物具有 已知的含氢气体:环己烷二羧酸二烷基酯比例; (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催化剂接触高于其露点; (e)使气态进料流通过氢化区;和(f)从氢化区回收包含环己烷二甲醇的产物流。
    • 117. 发明授权
    • Process for the production of unsaturated fatty alcohols
    • 生产不饱和脂肪醇的方法
    • US5399792A
    • 1995-03-21
    • US204251
    • 1994-05-06
    • Guenther Demmering
    • Guenther Demmering
    • C07C29/149C07C31/20C07C33/02C07C33/025
    • C07C29/149
    • Unsaturated fatty alcohols with 6 to 22 C atoms can be produced by directly hydrating deacidified and/or non-deacidified glyceride oils containing monounsaturated and/or polyunsaturated, straight chain and/or branched-chain fatty acids having 6 to 22 C atoms in the fatty acid residue, by applying a 30 to 100-fold excess of hydrogen in a pressure range from 50 to 300 bars, at temperatures from 200.degree. to 400.degree. C., to zinc-chrome-catalysts of the spinel type, while largely preserving the olefinic double bonds and with formation of propane and 1,2-propylene glycol.
    • PCT No.PCT / EP92 / 01985。 371日期:1994年5月6日 102(e)日期1994年5月6日PCT提交1992年8月28日PCT公布。 公开号WO93 / 05003 具有6至22个碳原子的不饱和脂肪醇可以通过直接水合含有单不饱和和/或多不饱和的直链和/或支链脂肪酸的脱酸和/或非脱酸甘油酯油,其具有6 至22 C原子,通过在50至300巴的压力范围内,在200-400℃的温度下,将30至100倍过量的氢施加至铬 - 铬催化剂 尖晶石型,同时在很大程度上保持烯属双键并形成丙烷和1,2-丙二醇。
    • 118. 发明授权
    • Preparation of cyclohexanedimethanol with a particular ratio
    • 以特定比例制备环己烷二甲醇
    • US5395987A
    • 1995-03-07
    • US175502
    • 1993-12-30
    • Colin RathmellRichard C. SprattMichael W. M. Tuck
    • Colin RathmellRichard C. SprattMichael W. M. Tuck
    • B01J23/889C07B61/00C07C27/02C07C29/149C07C31/27C07C31/13C07C27/04
    • C07C31/276C07C29/149C07C2101/14
    • A continuous process is described for the production of 1,4-cyclohexanedimethanol (CHDM) having a desired or predetermined trans-:cis- isomer ratio by catalytic hydrogenation of a dialkyl 1,4-cyclohexanedicarboxylate in the presence of an ester hydrogenation catalyst. The process is capable of being operated for an extended period of time during which the hydrogenation catalyst declines in catalytic activity and comprises feeding a vaporous mixture of the dialkyl 1,4-cyclohexanedicarboxylate and hydrogen to a hydrogenation zone containing the hydrogenation catalyst and recovering CHDM product. The degree of conversion of the dialkyl 1,4-cyclohexanedicarboxylate at a particular combination of temperature and pressure is related to the trans-:cis- isomer ratio of the CHDM product and may be varied by adjusting at least one feed condition selected from (i) the dialkyl 1,4-cyclohexanedicarboxylate feed rate and (ii) the hydrogen-containing gas:dialkyl 1,4-cyclohexanedicarboxylate molar ratio. As catalyst activity declines during operation of the process over an extended period of time at a particular combination of temperature and pressure, the degree of conversion of the dialkyl 1,4-cyclohexanedicarboxylate and/or the trans-:cis- isomer ratio of the CHDM product may be maintained at a constant value by adjusting at least one of the feed conditions referred to above. The determination of the Actual Activity and Reference Activity of the catalyst and the Actual and Effective Residence Times are included in the hydrogenation process.
    • 描述了在酯加氢催化剂存在下通过催化氢化1,4-环己烷二羧酸二烷基酯生产具有所需或预定的反式 - 顺式 - 异构体比例的1,4-环己烷二甲醇(CHDM)的连续方法。 该方法能够长时间运行,在此期间氢化催化剂催化活性下降,并且包括将1,4-环己烷二羧酸二烷基酯和氢气的蒸气混合物进料到含氢化催化剂的氢化区和回收CHDM产物 。 在特定的温度和压力组合下,1,4-环己烷二羧酸二烷基酯的转化度与CHDM产物的反式 - 顺式 - 异构体比例有关,并且可以通过调节至少一种进料条件来改变,所述进料条件选自(i )1,4-环己烷二羧酸二烷基酯进料速率和(ii)含氢气体:1,4-环己烷二羧酸二烷基酯摩尔比。 随着催化剂活性在特定的温度和压力组合下长时间运行过程中催化剂活性下降,1,4-环己烷二羧酸二烷基酯的转化率和/或CHDM的反式 - 顺式异构体比例 可以通过调节至少一种上述进料条件将产物保持在恒定值。 催化剂的实际活性和参考活性的确定以及实际和有效的停留时间包括在加氢过程中。
    • 119. 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。