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11.发明授权
公开(公告)号：US4746759A
公开(公告)日：1988-05-24
申请号：US923327
申请日：1986-10-27
CPC分类号： C07C17/25 , B01J2219/00006
摘要： An improved process for the preparation of vinyl chloride from 1,2-dichloroethane (EDC) wherein 0.10 to 0.15 % by weight of carbon tetrachloride based on EDC, is used as a cracking promoter and the CHCl.sub.3 content is limited to less than 200 ppm. Before being fed to the cracking zone, the EDC is brought almost to the boiling point at 15 to 31 bar and then expanded to 10 to 16 bar with flashing EDC vapors and the fraction which has remained liquid is vaporized externally, and the combined EDC gas streams are heated, after being fed into the cracking furnaces, so that the energy required for cracking is already supplied in the first 75 to 85% of the reaction zone, whereby a conversion of 60 to 70% is obtained at residence time from 10 to 25 seconds and the exit temperature from the reaction zone is 485.degree. to 510.degree. C.
摘要翻译： 用于从1,2-二氯乙烷（EDC）制备氯乙烯的改进方法，其中基于EDC的0.10至0.15重量％的四氯化碳用作裂化促进剂，CHCl 3含量限于小于200ppm。 在进料到裂化区之前，EDC几乎达到15至31巴的沸点，然后用闪烁的EDC蒸气膨胀至10至16巴，剩余液体的馏分从外部蒸发，并将组合的EDC气体 在进料到裂解炉中之后，将物流加热，使得裂化所需的能量已经在反应区的第一个75-85％的比例中提供，从而在10至10的停留时间内获得60至70％的转化率 25秒，反应区出口温度为485〜510℃。
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公开(公告)号：US4606742A
公开(公告)日：1986-08-19
申请号：US743161
申请日：1985-06-10
CPC分类号： B01D53/68
摘要： In a method of recovering heat from flue gas resulting from the combustion of chlorinated organic compounds at 900.degree. to 1300.degree. C. at a pressure of 0.9 to 1.5 bar absolute whereby the flue gas is cooled with the recovery of heat and hydrogen chloride is processed, the improvement comprising (a) cooling the flue gas in a first step to a temperature of 250.degree. to 350.degree. C. with a contact time of 0.05 to 0.15 seconds, (b) cooling the flue gas in a second step to a minimum of 140.degree. C. with a contact time of 1.3 to 2.0 seconds, the cooling medium in both stages being water flowing at an initial temperature of 100.degree. to 140.degree. C. in step (b) counter to the flue gas flow direction and added to cooling stage (a) at a temperature of 200.degree. to 220.degree. C. and (c) cooling the flue gas in a third stage to its dew point and scrubbing it with water to recover the hydrogen chloride therein in solution.
摘要翻译： 在从0.9-1.5巴绝对压力下在900〜1300℃的氯化有机化合物的燃烧产生的烟道气中回收热量的方法，由烟道气被回收而冷却，加入氯化氢 改进包括（a）在第一步骤中将烟道气冷却至250℃至350℃的温度，接触时间为0.05至0.15秒，（b）将第二步骤中的烟道气冷却至最小 的接触时间为1.3至2.0秒，两个阶段的冷却介质是在步骤（b）中在100至140℃的初始温度下流动的水与烟气流动方向相反，并加入 到冷却阶段（a），并且（c）在第三阶段将烟道气冷却至其露点，并用水洗涤以在溶液中回收其中的氯化氢。
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13.发明授权
公开(公告)号：US4986975A
公开(公告)日：1991-01-22
申请号：US348283
申请日：1989-05-05
IPC分类号： B01D3/14 , B01J27/122 , B01J37/24 , C01B7/07
CPC分类号： C01B7/0706 , B01J27/122 , B01J37/24 , C01B7/0712
摘要： The invention is a multi-stage process for purifying hydrogen chloride containing acetylene and ethylene, from pyrolysis of 1,2-dichloroethane to provide highly pure hydrogen chloride for use in the preparation of silicon compounds. In the first stage, unsaturated by-products are chlorinated by reaction with an excess of chlorine gas. In the second stage, the unreacted chlorine gas remaining in the hydrogen chloride is reacted with an excess of defined olefins or chloroolefins and the hydrogen chloride is separated from the chlorination products and the excess olefins or chloroolefins by low-temperature rectification under pressure.
摘要翻译： 本发明是用于从1,2-二氯乙烷的热解纯化含乙炔和乙烯的氯化氢的多阶段方法，以提供用于制备硅化合物的高纯度氯化氢。 在第一阶段，通过与过量的氯气反应来使不饱和副产物氯化。 在第二阶段中，残留在氯化氢中的未反应氯气与过量的定义的烯烃或氯代烯烃反应，并通过低压精馏在压力下将氯化氢与氯化产物和过量的烯烃或氯代烯烃分离。
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14.发明授权Purification by hydrogenation of hydrogen chloride containing acetylene obtained by the thermal cracking of 1,2-dichloroethane 失效通过1,2-二氯乙烷的热裂解获得的含有乙炔的氯化氢的氢化进行纯化
公开(公告)号：US4388278A
公开(公告)日：1983-06-14
申请号：US316521
申请日：1981-10-29
CPC分类号： C01B7/0706
摘要： The invention is a process for the purification of hydrogen chloride formed during the thermal cracking of 1,2-dichloroethane, by hydrogenating the acetylene impurities with excess hydrogen, at pressures of from 8 to 20 bar absolute and at temperatures of from 120.degree. to 180.degree. C., using platinum or palladium supported catalysts, wherein, according to the invention, carrier materials having a specific surface area of not more than 5 m.sup.2 /g are used, the hydrogen excess used is a function of the acetylene content, the gas mixture, after reaching a temperature of approximately 70.degree. C., is permitted a dwell time of not more than 0.8 second before it enters the catalyst, and the temperature, pressure and volume flow rates are dependent on one another within narrow limits.The purified hydrogen chloride is used for oxychlorination.
摘要翻译： 本发明是一种在1,2-二氯乙烷的热裂解过程中形成的氯化氢的纯化方法，通过在8至20巴的绝对压力和120至180℃的温度下氢化具有过量氢气的乙炔杂质 使用铂或钯负载的催化剂，其中根据本发明，使用比表面积不大于5m 2 / g的载体材料，所用的氢过量是乙炔含量的函数，气体 混合物在达到约70℃的温度后，允许其进入催化剂之前不超过0.8秒的停留时间，并且温度，压力和体积流速在狭窄的范围内彼此依赖。 纯化的氯化氢用于氧氯化。
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公开(公告)号：US4220607A
公开(公告)日：1980-09-02
申请号：US19388
申请日：1979-03-12
申请人： Dominik Dempf , Rudolf Knabl , Ludwig Schmidhammer , Wilhelm Mack
发明人： Dominik Dempf , Rudolf Knabl , Ludwig Schmidhammer , Wilhelm Mack
CPC分类号： C07C17/42
摘要： Stabilized perchloroethylene containing 0.001 to 0.1% by weight of N-alkylmorpholine, 0.001 to 0.01% by weight of alkylphenols, 0.0005 to 0.002% by weight of diisopropylamine, and 0.05 to 0.5% by weight of cyclohexeneoxide. By stabilization with the mixture of stabilizers, the perchloroethylene is stabilized to an extraordinary degree against attack by metals, particularly, decomposition through oxidation in contact with metals or metal salts, in some cases also upon exposure to light. A further improvement of the combined stabilizing action can be obtained by the addition of 0.005 to 0.1% by weight of epoxipropanol.
摘要翻译： 含有0.001〜0.1重量％的N-烷基吗啉，0.001〜0.01重量％的烷基酚，0.0005〜0.002重量％的二异丙基胺和0.05〜0.5重量％的环己烯氧化物的稳定的全氯乙烯。 通过用稳定剂的混合物稳定化，全氯乙烯被稳定到非常程度以抵抗金属的侵蚀，特别是通过与金属或金属盐接触的氧化分解，在一些情况下也是在暴露于光下时分解。 通过加入0.005〜0.1重量％的环氧丙醇可以进一步提高组合的稳定作用。
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公开(公告)号：US5177233A
公开(公告)日：1993-01-05
申请号：US686616
申请日：1991-04-17
IPC分类号： B01J31/22 , C07B61/00 , C07C17/02 , C07C19/045
CPC分类号： B01J31/30 , B01J31/0214 , C07C17/02 , B01J2231/32
摘要： A catalyst system for the preparation of 1,2-dichloroethane by reacting ethylene and chlorine in a solvent, if desired, in the presence of an inhibitor for reducing the formation of byproducts. The catalyst system comprises a phenolate/chlorine complex. The invention also relates to a process for the chlorination of ethylene using indicated catalyst system.
摘要翻译： 如果需要，在用于减少副产物形成的抑制剂的存在下，使乙烯和氯在溶剂中反应制备1,2-二氯乙烷的催化剂体系。 催化剂体系包括苯酚/氯络合物。 本发明还涉及使用所示的催化剂体系氯化乙烯的方法。
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17.发明授权Process for purifying unreacted 1,2-dichloroethane from a 1,2-dichloroethane pyrolysis process 失效从1,2-二氯乙烷热解过程中纯化未反应的1,2-二氯乙烷的方法
公开(公告)号：US5068475A
公开(公告)日：1991-11-26
申请号：US681186
申请日：1991-04-05
IPC分类号： B01J23/745 , C07B61/00 , C07C17/12 , C07C17/25 , C07C17/357 , C07C17/38 , C07C17/395 , C07C19/045 , C07C21/06 , C07C25/02
摘要： The invention relates to a process for purifying unreacted 1,2-dichloroethane from a 1,2-dichloroethane pyrolysis process by chlorinating the benzene produced as a by-product and removing the chlorination products by distillation.
摘要翻译： 本发明涉及通过氯化作为副产物产生的苯并通过蒸馏除去氯化产物从1,2-二氯乙烷热解过程中纯化未反应的1,2-二氯乙烷的方法。
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18.发明授权
公开(公告)号：US3998706A
公开(公告)日：1976-12-21
申请号：US604395
申请日：1975-08-13
IPC分类号： C07C17/386 , C07C17/00 , C07C17/38 , C07C19/01 , C07C19/045 , C07C21/04 , C07C67/00 , B01D3/34
CPC分类号： C07C17/38
摘要： A process for separating lower-boiling chlorohydrocarbons and water from neutralized crude chlorohydrocarbons having at least two carbon atoms, which comprises fractionally distilling the crude chlorohydrocarbons in a fractionating column, thereby obtaining a fraction A containing the desired product which is withdrawn at the bottom of the column practically free of impurities, and a fraction B, comprising water, impurities having a lower boiling point, and entrained amounts of the desired chlorohydrocarbon, withdrawing said fraction B from the top of the column and, while still in gaseous state, neutralizing fraction B with an aqueous solution of a mixture of basic compounds, thereby avoiding corrosion of the apparatus, and thereafter subjecting the gaseous fraction to stepwise condensation with recovery of the entrained portions of said chlorohydrocarbon by returning them to the fractionating column, while separately removing water and undesirable impurities.
摘要翻译： 从具有至少两个碳原子的中和的粗制氯烃中分离低沸点氯代烃和水的方法，其包括在分馏塔中分馏蒸馏粗的氯代烃，从而得到含有所需产物的馏分A， 柱子几乎不含杂质，和一部分B，包含水，具有较低沸点的杂质和夹带量的所需氯代烃，从塔顶排出所述馏分B，同时仍处于气态的中和馏分B 与碱性化合物的混合物的水溶液，从而避免该装置的腐蚀，然后使气态馏分经过逐步冷凝，同时回收所述氯代烃的夹带部分，将其返回到分馏塔，同时分开除去水和不希望的 杂质。
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19.发明授权Supported catalyst, process for its production as well as its use in the oxychlorination of ethylene 失效负载催化剂，其生产方法及其在乙烯氧氯化中的应用
公开(公告)号：US5986152A
公开(公告)日：1999-11-16
申请号：US198251
申请日：1998-11-24
IPC分类号： B01J23/83 , B01J27/122 , B01J35/02 , B01J35/10 , C07B61/00 , C07C17/08 , C07C17/156 , C07C19/045 , B01J23/72
CPC分类号： B01J35/026 , B01J23/83 , B01J27/122 , C07C17/156
摘要： A supported catalyst includes: a) 0.5-15 wt. % of one or more Cu-II compounds, the quantitative amounts referring to copper metal; b) 0.1-8 wt. % of one or more alkali metal compounds, the quantitative amounts referring to alkali metal; c) 0.1-10 wt. % of an oxide mixture including; c1) 80-95 mole % of oxides of cerite rare earths with atomic Nos. 57 to 62, except promethium, and c2) 5-20 mole % of zirconium dioxide, where c1) and c2) must together total 100 mole % and the quantitative amount of c) refers to the oxides of the mixture, and d) the remainder up to 100 wt. % being .gamma. and/or .alpha.-aluminum oxide as support material, wherein e) the support material d) has a total pore volume in the range from 0.65 to 1.2 cm.sup.3 /g, and wherein f) the supported catalyst is present in the form of cylindrical hollow bodies having at least one passage channel, the ratio of height h to external diameter d.sup.e being less than 1.5 for diameters d.sub.e of up to 6 mm, and the ratio h/d.sub.e being less than 0.6 for diameter d.sub.e greater than 6 mm. A process for producing the supported catalyst is also described.
摘要翻译： 负载催化剂包括：a）0.5-15wt。 ％的一种或多种Cu-II化合物，定量为铜金属; b）0.1-8wt。 ％的一种或多种碱金属化合物，定量为碱金属; c）0.1-10重量％ ％的氧化物混合物包括： c1）80-95摩尔％的原子号为57〜62的铈铈稀土的氧化物，除了碲，和c2）5-20摩尔％的二氧化锆，其中c1）和c2）必须总共为100摩尔％ 定量的c）是指混合物的氧化物，和d）余量高达100wt。 ％为γ和/或α-二氧化铝作为载体材料，其中e）载体材料d）具有在0.65-1.2cm 3 / g范围内的总孔体积，并且其中f）负载型催化剂以 具有至少一个通道的圆柱形空心体，对于直径为d至6mm，高度h与外径之比de小于1.5，直径d大于0.6的比率h / de小于0.6 。 还描述了制备负载型催化剂的方法。
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公开(公告)号：US5233106A
公开(公告)日：1993-08-03
申请号：US910215
申请日：1992-07-09
CPC分类号： C07C17/23 , B01J31/0268 , B01J31/0269 , B01J31/30 , B01J21/18 , B01J35/023 , B01J35/1023 , B01J35/1028
摘要： A process is provided for the hydrogenation of chloromethanes of the formula CH.sub.n Cl.sub.m, where n=0 to 3 and m=4-n, with hydrogen at a temperature of 150.degree. to 250.degree. C. and under an absolute pressure of 1 to 10 bar, by means of a supported catalyst comprising an activated charcoal support with a BET surface area of more than 500 m.sup.2 /g, 0.5 to 20% by weight of copper in elemental or chemically bonded form and 0.01 to 1.0% by weight of rhodium or palladium in elemental or chemically bonded form, and with 0.1 to 10.0% by weight of a water-soluble phosphonium halide.
摘要翻译： 提供了一种方法，用于在150℃至250℃的温度和1至10巴的绝对压力下氢化式CHnClm的氯甲烷（其中n = 0至3和m = 4-n） 通过负载催化剂，其包含BET表面积大于500m 2 / g的活性炭载体，元素或化学键合形式的铜0.5至20重量％，以及0.01至1.0重量％的铑或钯 元素或化学键合形式，和0.1至10.0重量％的水溶性卤化鏻。
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