-
公开(公告)号：US4839153A
公开(公告)日：1989-06-13
申请号：US151817
申请日：1988-02-03
IPC分类号： C07C17/25 , B01J23/00 , B01J23/44 , C01B7/07 , C01B33/107 , C07B61/00 , C07C17/00 , C07C17/395 , C07C21/06 , C07C67/00
CPC分类号： C01B7/0712 , B01J23/44 , C01B33/10763 , C01B7/0706
摘要： In a process for the purification of hydrogen chloride from the pyrolysis of 1,2-dichloroethane, optionally after a preceding step of acetylene removal by selective hydrogenation under specific conditions followed by rectification of the resulting mixture to obtain hydrogen chloride containing at most 5 ppm of unsaturated hydrocarbons and at most 5 ppm of chlorinated hydrocarbons.
摘要翻译： 在从1,2-二氯乙烷的热解中纯化氯化氢的方法中，任选地在通过在特定条件下通过选择性氢化除去乙炔之前的步骤，然后将所得混合物精馏，得到含有至多5ppm 不饱和烃和至多5ppm的氯代烃。
-
公开(公告)号：US4482770A
公开(公告)日：1984-11-13
申请号：US241281
申请日：1981-03-06
CPC分类号： C07C17/38 , C01B7/0706
摘要： An improved process for the removal of acetylene from a hydrogen chloride stream in which the acetylene is converted to vinyl chloride by contact with a hydrochlorination catalyst, the improvement comprising, prior to contacting the stream with the hydrochlorination catalyst, contacting said stream with a catalyst comprising a noble metal, preferably of the platinum group, or salt or oxide thereof, supported or unsupported, at a temperature of between about 50.degree. and about 200.degree. C. and a pressure between about 8 and about 20 bar absolute.
摘要翻译： 一种用于从氯化氢料流中除去乙炔的改进方法，其中通过与氢氯化催化剂接触将乙炔转化为氯乙烯，其改进包括在将料流与氢氯化催化剂接触之前，使所述料流与催化剂接触，所述催化剂包含 优选铂族的贵金属或其盐或氧化物，在约50至约200℃的温度和约8至约20巴绝对压力之间的负载或未负载。
-
3.发明授权
公开(公告)号：US4822932A
公开(公告)日：1989-04-18
申请号：US178477
申请日：1988-04-07
IPC分类号： C07C17/00 , C07C17/25 , C07C17/38 , C07C17/383 , C07C21/06 , C07C67/00 , C07C17/24 , C07C17/34
CPC分类号： C07C17/25 , C07C17/38 , B01J2219/00006 , Y02P20/51
摘要： In a method of treating the reaction product of pyrolysis of 1,2-dichloroethane to form vinyl chloride and hydrogen chloride with multiple stage cooling and distillation separation of the reaction product and recycle of unreacted 1,2-dichloroethane to the pyrolysis step, the improvement comprising direct cooling of the reaction product immediately after leaving the pyrolysis step, within 1 sec from a temperature range of 480.degree. to 540.degree. C. down to 150.degree. to 250.degree. C., charging the cooled product into a quench column, recovering the vapors from the head of the quench column and indirectly cooling the same by heat exchange to at least its condensation point, the heat exchange media being at least one member of the group consisting of (a) 1,2-dichloroethane to be fed in heated condition to the pyrolysis unit, (b) air used as combustion air to fire the pyrolysis zone, (c) the sump of the hydrogen chloride column as defined above, (d) liquid hydrogene chloride to be evaporated and, (e) water, to dissipate heat not used within the measures according to the present invention.
摘要翻译： 在处理1,2-二氯乙烷热解反应产物形成氯乙烯和氯化氢的方法中，多级冷却和蒸馏分离反应产物并将未反应的1,2-二氯乙烷再循环到热解步骤中，改进 包括在离开热解步骤后立即直接冷却反应产物，在480℃至540℃的温度至150℃至250℃的1秒内，将冷却的产物装入骤冷塔中，回收 来自骤冷塔头部的蒸气并通过热交换间接地冷却至至少其冷凝点，所述热交换介质是由（a）1,2-二氯乙烷组成的组中的至少一个组分，所述组分由待加热的 （b）用作燃烧空气来燃烧热解区的空气，（c）如上所述的氯化氢柱的贮槽，（d）待蒸发的液体氯化烯，（e） 水，以消散根据本发明的措施中不使用的热量。
-
4.发明授权Process for upgrading hydrogen chloride containing chlorine, iron-III-chloride, ethylene and/or acetylene 失效用于升级含有氯，三氯化铁，乙烯和/或乙炔的氯化氢的方法
公开(公告)号：US4584123A
公开(公告)日：1986-04-22
申请号：US633965
申请日：1984-07-24
IPC分类号： C01B7/01 , C07C17/156 , C09K3/00
CPC分类号： C01B7/01 , C07C17/156
摘要： A process of upgrading hydrogen chloride which contains chlorine, iron-III-chloride, acetylene and/or ethylene, for use in an oxichlorination process, wherein water in a gaseous state is added to the hydrogen chloride at temperatures between 120.degree. and 180.degree. C. within a time period of maximally 0.9 seconds after the acetylene and/or ethylene is present in the hydrogen chloride, together with chlorine and iron-III-chloride.
摘要翻译： 一种用于升级含氯，三氯化铁，乙炔和/或乙烯的氯化氢，用于二氯甲烷化过程的方法，其中在120-180℃的温度下将气态水加到氯化氢中 在乙炔和/或乙烯存在于氯化氢中之后的最大0.9秒的时间内，连同氯和三氯化铁。
-
5.发明授权Method for preparing hydrogen chloride for the ethyleneoxichlorination process 失效制备氯乙烯用于亚乙基二氯化方法的方法
公开(公告)号：US4528174A
公开(公告)日：1985-07-09
申请号：US614530
申请日：1984-05-29
申请人： Ludwig Schmidhammer , Gerhard Dummer , Rudolf Strasser , Klaus Haselwarter , Hermann Klaus , Eduard Pichl
发明人： Ludwig Schmidhammer , Gerhard Dummer , Rudolf Strasser , Klaus Haselwarter , Hermann Klaus , Eduard Pichl
IPC分类号： C07C17/02 , B01J27/00 , B01J27/12 , C01B7/07 , C07B61/00 , C07C17/00 , C07C17/156 , C07C19/045 , C07C67/00
CPC分类号： C01B7/0706 , C07C17/156
摘要： A method for preparing hydrogen chloride resulting from chlorination reactions for use in the ethyleneoxichlorination process by reacting the chlorine contained in the hydrogen chloride with ethylene in the gaseous phase in the presence of carrier catalysts based on an iron-free transition metal chloride having an activity profile which increases in the flow direction, while maintaining the space-flow rates relatively high and the residence time of the gas in the reactor short. After discharge of the reaction product from the reactor the product is subjected to partial condensation advantageously performed in several steps.
摘要翻译： 一种用于制备用于乙烯基次氯化方法的氯化反应产生的氯化氢的方法，该方法是在基于具有活性分布的无铁过渡金属氯化物的载体催化剂的存在下，使氯化氢中所含的氯与气相中的乙烯反应 其在流动方向上增加，同时保持空间流速相对较高，并且气体在反应器中的停留时间短。 在从反应器中排出反应产物之后，将产物进行部分冷凝，有利地在几个步骤中进行。
-
6.发明授权
公开(公告)号：US5099085A
公开(公告)日：1992-03-24
申请号：US664468
申请日：1991-03-01
IPC分类号： B01J35/04 , B01J12/00 , B01J19/24 , C07B39/00 , C07B61/00 , C07C17/15 , C07C17/156 , C07C19/045
CPC分类号： C07C17/15 , B01J12/007 , B01J19/2485 , C07B39/00 , B01J2219/00094 , B01J2219/00099
摘要： The use of hitherto known supported catalysts in chlorination processes and oxychlorination processes leads to high pressure drops and to the formation of hot spot temperatures in the reactor. When honeycomb monolithic catalyst supports provided with a multiplicity of channels open at both ends and parallel to the longitudinal axis are used, both the heat dissipation is improved and the pressure drops across the reactor are lowered drastically. This leads ultimately to an increase in the selectivity of the reaction and to a minimization of the combustion rate.
摘要翻译： 在氯化过程和氧氯化过程中使用迄今已知的负载型催化剂导致高压降和反应器中热点温度的形成。 当使用具有在两端开放并平行于纵向轴线的多个通道的蜂窝状整体式催化剂载体时，散热得到改善，并且跨过反应器的压降大幅降低。 这最终导致反应的选择性的增加和燃烧速率的最小化。
-
公开(公告)号：US4754088A
公开(公告)日：1988-06-28
申请号：US13285
申请日：1987-02-11
IPC分类号： C07B61/00 , B01J23/00 , B01J23/34 , B01J23/75 , B01J23/755 , B01J27/10 , B01J27/128 , C07C17/00 , C07C17/02 , C07C17/156 , C07C19/045 , C07C67/00
CPC分类号： C07C17/02 , C07C17/156
摘要： In a process for preparation of 1,2-dichloroethane by chlorination of ethylene-containing reaction vent gases from the oxychlorination of ethylene in the presence of a catalyst carrier impregnated with metal compounds wherein the waste from the oxychlorination stage are chlorinated, the improvement comprising preheating the ethylene-containing waste gases to at least 50.degree. C. and then chlorinating the ethylene at 100.degree. to 300.degree. C. at a pressure of 1 to 7 bar with a space velocity of 100 to 5000 h.sup.-1 related to standard conditions in the presence of at least one metal compound selected from the group consisting of chlorides and oxides of manganese, nickel and cobalt supported on a catalyst carrier with reduced formation of oxychlorinated by-products.
摘要翻译： 在通过氯化来自乙烯的氧氯化反应的含乙烯的反应排放气体在浸渍有金属化合物的催化剂载体（其中氯氧化阶段的废物被氯化）的情况下制备1,2-二氯乙烷的方法中，改进包括预热 含乙烯废气至少50℃，然后在1至7巴的压力下在100至300℃下以100至5000h -1的空间速度将乙烯氯化为与标准条件相关的 存在至少一种金属化合物，其选自负载在催化剂载体上的氯化物和锰，镍和钴的氧化物，并减少氧氯化副产物的形成。
-
公开(公告)号：US4540837A
公开(公告)日：1985-09-10
申请号：US519969
申请日：1983-08-03
IPC分类号： A62D3/00 , A62D3/38 , A62D101/22 , C07C17/38
CPC分类号： A62D3/38 , A62D2101/22
摘要： A process for the work-up of chlorination residues by dissolving the same at temperatures between 100.degree. and 180.degree. C. in chlorine- and oxygen-containing hydrocarbons having a ratio by weight of hydrogen to chlorine of 0.028-0.06:1, a ratio by weight of oxygen:carbon of 0.0038-0.0089:1, and an atomic ratio of carbon:hydrogen of 1:1.1-1.9 and/or in hydrocarbons, boiling between 160.degree. and 380.degree. C. at one bar abs. and having an atomic ratio carbon:hydrogen of 1:1.85-2.0 so as to obtain a liquid preparation having a ratio by weight of hydrogen:chlorine of 0.028-0.05:1.
摘要翻译： 将氯化残留物在100-180℃的温度下溶解在含氢气和含氧烃的烃中，其中氢与氯的重量比为0.028-0.06:1，其比例为 的氧：碳为0.0038-0.0089:1，碳：氢原子比为1：1.1-1.9，和/或在沸点为160- 380℃之间的烃中，在一个bar abs下。 并且具有1：1.85-2.0的原子比碳：氢，以获得氢：氯的重量比为0.028-0.05:1的液体制剂。
-
公开(公告)号：US4409396A
公开(公告)日：1983-10-11
申请号：US299019
申请日：1981-09-03
申请人： Dominik Dempf , Ludwig Schmidhammer , Gerhard Dummer , Gunter Roscher , Karl-Heinz Schmidt , Ernst Selbertinger , Rudolf Strasser
发明人： Dominik Dempf , Ludwig Schmidhammer , Gerhard Dummer , Gunter Roscher , Karl-Heinz Schmidt , Ernst Selbertinger , Rudolf Strasser
IPC分类号： C07C69/025 , B01J31/00 , C07B61/00 , C07C67/055 , C07C69/145 , C07C69/15 , C07C69/155
CPC分类号： C07C67/055
摘要： The invention relates to a process for the manufacture of unsaturated carboxylic acid esters by the reaction of olefins or cyclo-olefins with oxygen and carboxylic acids in the gaseous phase, in the presence of a catalyst which contains elements of the subsidiary group VIII of the periodic system and/or compounds thereof, and an alkali metal acetate, at temperatures of from 100.degree. to 250.degree. C. and pressures of from 0.5 to 21 bar absolute, wherein from 1 to 8000 parts per million (by weight), calculated on the carboxylic acid used, of organic chlorine compounds are added to the reaction mixture.
摘要翻译： 本发明涉及一种通过烯烃或环烯烃与气相中的氧和羧酸反应制备不饱和羧酸酯的方法，该催化剂含有周期性的第VIII族的元素的催化剂 系统和/或其化合物和碱金属乙酸盐，其温度为100-250℃，压力为0.5-21巴绝对值，其中按重量百分数计算为1至8000份（按重量计） 使用羧酸的有机氯化合物加入到反应混合物中。
-
公开(公告)号：US4788357A
公开(公告)日：1988-11-29
申请号：US074137
申请日：1987-07-16
IPC分类号： C07C17/00 , C07C17/25 , C07C17/383 , C07C21/06 , C07C67/00
CPC分类号： C07C17/25 , C07C17/383
摘要： An improved method of producing vinyl chloride by pyrolysis of purified 1,2-dichloroethane at temperatures from 480.degree. C. to 540.degree. C. at a pressure of 10 to 36 bar absolute with partial utilization of the heat content of the flue gases from the pyrolysis furnace firing to preheat liquid 1,2-dichloroethane almost to its boiling temperature utilizing the flue gas waste heat to generate steam, cool the pyrolysis gas mixture in several stages and separate the hydrogen chloride from the pyrolysis gas mix in a hydrogen chloride column as well as separate vinyl chloride from the pyrolysis gas mix in a vinyl chloride monomer column.
摘要翻译： 一种改进的制备氯乙烯的方法，其通过在绝对压力为10至36巴的压力下，在480℃至540℃的温度下热解纯化的1,2-二氯乙烷，部分利用来自 利用废气废热，利用烟气废热预热液体1,2-二氯乙烷几乎达到沸点，分几个阶段冷却热解气体混合物，将氯化氢与热解气体混合物在氯化氢柱中分离， 以及来自氯乙烯单体柱中的热解气体混合物的单独的氯乙烯。
-
-
-
-
-
-
-
-
-
搜索结果
24 条记录 (耗时 0.016 秒)
