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公开(公告)号：US07001490B2
公开(公告)日：2006-02-21
申请号：US09767820
申请日：2001-01-24
CPC分类号： B01D3/141 , B01D3/146 , C01C1/024 , Y10S203/20
摘要： Crude ammonia is separated into a low boiler fraction, a high boiler fraction and an intermediate-boiling pure fraction by continuous fractional distillation in a distillation apparatus configured either as a dividing wall column or as a system of thermally coupled distillation columns. In the process of the present invention, the low boiler fraction is taken off at the top of the distillation apparatus. The intermediate-boiling pure fraction is obtained at a side offtake which is preferably provided with droplet precipitators. In addition, the gas loading of the distillation column is restricted so that the operating pressure is in the range from 2 to 30 bar and the F factor does not exceed 2.0 Pa0.5.
摘要翻译： 在作为分隔壁塔或作为热偶联蒸馏塔的系统的蒸馏装置中，通过连续分馏将粗氨分离成低沸点馏分，高沸点馏分和中间沸点纯馏分。 在本发明的方法中，低沸点馏分在蒸馏装置的顶部取出。 中间沸腾的纯馏分在优选设置有液滴沉淀器的一侧获得。 此外，限制蒸馏塔的气体负载，使得操作压力在2至30巴的范围内，F因子不超过2.0Pa±0.5。
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公开(公告)号：US20050143598A1
公开(公告)日：2005-06-30
申请号：US10511088
申请日：2003-04-15
申请人： Christoph Adami , Michael Slany , Jorn Karl , Gerd Kaibel , Martin Schafer , Peter Zehner , Michael Roper
发明人： Christoph Adami , Michael Slany , Jorn Karl , Gerd Kaibel , Martin Schafer , Peter Zehner , Michael Roper
IPC分类号： C07C67/36
摘要： The invention relates to a process for the preparation of methyl formate by reacting methanol with carbon monoxide at a pressure of from 0.5 to 10 MPa abs. and a temperature of from 50 to 150° C. in the presence of a metal alkoxide as catalyst in a reactor, in which a gas stream is withdrawn from the reactor, entrained methyl formate is removed from this gas stream by condensation, and all or some of the remaining gas stream is returned to the reactor as circulating-gas stream and a mean gas superficial velocity of from 1 to 20 cm/s is set in at least one region of the reactor in which the gas flows essentially in one direction.
摘要翻译： 本发明涉及一种通过使甲醇与一氧化碳在0.5至10MPa abs的压力下反应制备甲酸甲酯的方法。 在反应器中从作为催化剂的金属醇盐存在下的温度为50-150℃，其中将气流从反应器中排出，夹带的甲酸甲酯通过冷凝从该气流中除去，全部或 一些剩余的气流作为循环气体流返回到反应器，并且在反应器的至少一个区域中设置1至20cm / s的平均气体空气速度，其中气体基本上在一个方向上流动。
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公开(公告)号：US06759560B2
公开(公告)日：2004-07-06
申请号：US10148929
申请日：2002-06-05
申请人： Josef Guth , Holger Friedrich , Hans-Josef Sterzel , Gerd Kaibel , Kirsten Burkart , Elke Hoffmann
发明人： Josef Guth , Holger Friedrich , Hans-Josef Sterzel , Gerd Kaibel , Kirsten Burkart , Elke Hoffmann
IPC分类号： C07C3130
CPC分类号： B01D3/141 , B01D1/2856 , C07C29/70 , C07C31/30
摘要： Alkali metal methoxides are prepared from aqueous alkali metal hydroxide, which may have been admixed with methanol, and methanol in a reaction column having at least 5, preferably from 15 to 30, theoretical plates between the feed point for the aqueous alkali metal hydroxide and the feed point for the methanol. The gaseous methanol/water mixture formed in the reaction is fractionated in a rectification column. In one variant of the invention, the trays chosen for the reaction column configured as a bubble cap tray, valve tray or sieve tray column are trays in which not more than 5%, preferably
摘要翻译： 碱金属甲醇盐由碱金属氢氧化物水溶液制成，碱金属氢氧化物可与甲醇混合，甲醇在反应塔中具有至少5个，优选15至30个理论塔板的碱金属氢氧化物水溶液和 甲醇的进料点。 在反应中形成的气态甲醇/水混合物在精馏塔中分馏。在本发明的一个变体中，为构成气泡盖，阀盘或筛板塔的反应塔选择的塔板是不在其中的托盘 超过5％，优选<1％的液体通过相应的托盘。在本发明方法的另一变型中，双壁反应塔的双壁温度为3至10℃ 高于柱内部温度，并且具有随机或有序填料，其中液体流量与蒸气流量的平均比率在塔的所有子区域中不超过15％以上，优选不超过3％ 截面对应于总柱横截面的2％以上。
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94.发明授权公开(公告)号：US06521767B1
公开(公告)日：2003-02-18
申请号：US09622852
申请日：2000-08-28
IPC分类号： C07J5300
CPC分类号： B01J8/0015 , B01J8/007 , B01J8/06 , B01J8/067 , B01J8/1863 , B01J8/20 , B01J8/22 , B01J8/228 , B01J8/34 , B01J19/2425 , B01J19/2465 , B01J2208/00212 , B01J2219/00103 , B01J2219/185 , B01J2219/1943 , B01J2219/32286 , B01J2219/32416 , C01B15/023 , C07C37/07 , C07C2602/24 , C07C39/12
摘要： In a process for the suspension hydrogenation of an anthraquinone compound or a mixture of two or more thereof in a reactor in which there are present the working solution in which at least one catalyst is suspended and, in addition, a hydrogen-containing gas phase, the working solution and the gas phase are, in the reactor, passed at least partly through a fitting having openings or channels whose hydraulic diameter is from 0.5 to 20 mm, preferably from 1 to 10 mm, particularly preferably from 1 to 3 mm.
摘要翻译： 在其中存在悬浮至少一种催化剂的工作溶液的反应器中的蒽醌化合物或其两种或更多种的混合物的悬浮氢化方法中，另外，含氢气相， 反应器中的工作溶液和气相至少部分地通过具有水力直径为0.5至20mm，优选为1至10mm，特别优选为1至3mm的开口或通道的配件。
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公开(公告)号：US06518464B2
公开(公告)日：2003-02-11
申请号：US09945642
申请日：2001-09-05
申请人： Jörg Therre , Gerd Kaibel , Werner Aquila , Günter Wegner , Hartwig Fuchs
发明人： Jörg Therre , Gerd Kaibel , Werner Aquila , Günter Wegner , Hartwig Fuchs
IPC分类号： C07C4302
CPC分类号： C07C41/56 , C07C41/58 , C07C43/303
摘要： The present invention relates to a continuous process for the preparation of unsaturated acetals by reacting olefinically unsaturated aliphatic compounds with allyl alcohols in a reaction column, where the reactants are only partially reacted in the reaction column, the resulting acetal is concentrated in at least two successive evaporation stages, and the recovered reactants are returned to the reaction column.
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公开(公告)号：US4517391A
公开(公告)日：1985-05-14
申请号：US496573
申请日：1983-05-20
申请人： Schuster, Ludwig , Franz-Josef Mueller , Axel Anderlohr , Peter Blei , Gerhart Eigenberger , Bernd Hoppner , Gerd Kaibel , Wolfgang Steiner
发明人： Schuster, Ludwig , Franz-Josef Mueller , Axel Anderlohr , Peter Blei , Gerhart Eigenberger , Bernd Hoppner , Gerd Kaibel , Wolfgang Steiner
IPC分类号： C07C29/149 , C07C29/136 , C07C31/08
CPC分类号： C07C29/149
摘要： Ethanol is prepared by hydrogenating acetic acid under superatmospheric pressure and at elevated temperatures by a process wherein a predominantly cobalt-containing catalyst is used and acetic acid and hydrogen are passed through the reactor, at from 210.degree. to 330.degree. C. and under from 10 to 350 bar, under conditions such that a liquid phase in not formed during this procedure.
摘要翻译： 乙醇通过在超大气压下和升高的温度下通过使用主要含钴催化剂并且使乙酸和氢气通过反应器的方法在210至330℃和10以下的方法制备乙酸 至350巴，条件是在此过程中未形成液相。
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97.发明授权Separating off organic iodine compounds from acetaldehyde-free carbonylation products of methanol, methyl acetate and dimethyl ether 失效将有机碘化合物从甲醇，乙酸甲酯和二甲醚的无乙醛羰基化产物中分离出来
公开(公告)号：US4399001A
公开(公告)日：1983-08-16
申请号：US315726
申请日：1981-10-28
CPC分类号： C07C51/573 , C07C51/46 , C07C67/54
摘要： A process for separating off organic iodine compounds from acetaldehyde-free carbonylation products of methanol, methyl acetate and dimethyl ether by removing the iodine compounds by azeotropic distillation with a hydrocarbon having a boiling point, under atmospheric pressure, of 25-55.degree. C.
摘要翻译： 通过用沸点在25-55℃的大气压下共沸蒸馏除去碘化合物，分离有机碘化合物与甲醇，乙酸甲酯和二甲醚的无乙醛羰基化产物的方法。
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公开(公告)号：US4310705A
公开(公告)日：1982-01-12
申请号：US163401
申请日：1980-06-26
申请人： Axel Nissen , Gerd Kaibel , Otto Woerz , Lothar Arnold , Manfred Braun , Walter Rebafka
发明人： Axel Nissen , Gerd Kaibel , Otto Woerz , Lothar Arnold , Manfred Braun , Walter Rebafka
CPC分类号： C07C45/676
摘要： An improved process for the preparation of higher unsaturated ketones, such as geranylacetone and farnesylacetone, by reacting a .beta.,.gamma.-unsaturated alcohol and an alkyl acetoacetate at an elevated temperature in the presence of an organic aluminum compound, with elimination, and removal, of the alcohol derived from the alkyl acetoacetate in a reactor system carrying a fractionating column. The improvement in the purity, yield, and especially space-time yield of the product is achieved by starting from an alcohol having a higher boiling point than that of the alkyl acetoacetate used, carrying out the reaction in the presence of a small amount of an inert liquid which has a boiling point between that of the alkyl acetoacetate and the alcohol to be eliminated therefrom, and ensuring that the temperature at the bottom of the fractionating column is only slightly higher than the boiling point of the added liquid, under the prevailing pressure.
摘要翻译： 通过在有机铝化合物的存在下在升高的温度下使β，γ-不饱和醇和乙酰乙酸烷基酯反应来制备高级不饱和酮，如香叶基丙酮和法呢基丙酮的改进方法，消除和除去 在含有分馏塔的反应器系统中衍生自乙酰乙酸烷基酯的醇。 通过从具有比所用乙酰乙酸烷基酯的沸点高的醇开始的醇开始，在少量的存在下进行反应来实现产物的纯度，产率和特别的时空产率的改善 沸点在乙酰乙酸烷基酯和被除去的醇之间的沸点的惰性液体，并且确保分馏塔底部的温度仅略高于添加液体的沸点，在主要压力下 。
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公开(公告)号：US4262140A
公开(公告)日：1981-04-14
申请号：US99760
申请日：1979-12-03
申请人： Kaspar Bott , Gerd Kaibel , Herwig Hoffmann , Otto Kratzer , Rudolf Irnich
发明人： Kaspar Bott , Gerd Kaibel , Herwig Hoffmann , Otto Kratzer , Rudolf Irnich
摘要： A process for the production of anhydrous or substantially anhydrous formic acid by hydrolysis of methyl formate which is carried out in a column having an upper fractionating section, a middle hydrolysis section and a lower extraction section and in which(a) the hydrolysis is carried out in the middle section of the columm, with water and methyl formate in countercurrent,(b) the resulting formic acid is extracted, in the lower section of the column, by means of a carboxylic acid amide which is fed into the lower end of the middle section of the column,(c) the extract phase, consisting in the main of formic acid and the carboxylic acid amide, is distillatively dehydrated, or substantially dehydrated, in the lower section of the column,(d) the methanol and uncovered methyl formate are removed by fractional distillation in the upper section of the column and(e) the pure formic acid or concentrated aqueous formic acid is distilled from the anhydrous or substantially anhydrous extract phase in a second column, leaving the carboxylic acid amide.
摘要翻译： 一种通过水解甲酸甲酯生产无水或基本上无水的甲酸的方法，该甲酸甲酯在具有上部分馏段，中间水解段和下部萃取段的塔中进行，其中（a）进行水解 在水的中间部分，与水和甲酸甲酯逆流，（b）所得甲酸在柱的下部通过羧酸酰胺萃取，该羧酸酰胺进料到 塔的中间部分，（c）主要由甲酸和羧酸酰胺组成的提取相在塔的下部进行蒸馏脱水或基本上脱水，（d）甲醇和未被覆盖的甲基 甲酸盐在塔的上部通过分馏除去，（e）从无水或基本上无水的提取物中蒸馏出纯甲酸或浓缩的甲酸水溶液 相在第二塔中，留下羧酸酰胺。
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