专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5177233A Catalyst system and use for the preparation of 1,2-dichloroethane 失效
标题翻译：催化剂体系及其用于1,2-二氯乙烷的制备
公开(公告)号：US5177233A
公开(公告)日：1993-01-05
申请号：US686616
申请日：1991-04-17
申请人： Ludwig Schmidhammer , Klaus Haselwarter , Hermann Klaus , Gerhard Dummer , Klaus-Peter Mohr
发明人： Ludwig Schmidhammer , Klaus Haselwarter , Hermann Klaus , Gerhard Dummer , Klaus-Peter Mohr
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。

2. 发明授权

US5068475A Process for purifying unreacted 1,2-dichloroethane from a 1,2-dichloroethane pyrolysis process 失效
标题翻译：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
申请人： Ludwig Schmidhammer , Klaus Haselwarter , Hermann Klaus , Klaus-Peter Mohr
发明人： Ludwig Schmidhammer , Klaus Haselwarter , Hermann Klaus , Klaus-Peter Mohr
IPC分类号： B01J23/745 , C07B61/00 , C07C17/12 , C07C17/25 , C07C17/357 , C07C17/38 , C07C17/395 , C07C19/045 , C07C21/06 , C07C25/02
CPC分类号： C07C17/38 , C07C17/25
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。

3. 发明授权

US4822932A Heat recovery in production of vinyl chloride by pyrolysis of dichloroethane 失效
标题翻译：通过二氯乙烷热解生产氯乙烯时的热回收
公开(公告)号：US4822932A
公开(公告)日：1989-04-18
申请号：US178477
申请日：1988-04-07
申请人： Gerhard Dummer , Klaus Haselwarter , Hermann Klaus , Ludwig Schmidhammer , Rudolf Strasser
发明人： Gerhard Dummer , Klaus Haselwarter , Hermann Klaus , Ludwig Schmidhammer , Rudolf Strasser
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

US4788357A Vinyl chloride production 失效
标题翻译：氯乙烯生产
公开(公告)号：US4788357A
公开(公告)日：1988-11-29
申请号：US074137
申请日：1987-07-16
申请人： Gerhard Dummer , Klaus Haselwarter , Hermann Klaus , Ludwig Schmidhammer , Rudolf Strasser
发明人： Gerhard Dummer , Klaus Haselwarter , Hermann Klaus , Ludwig Schmidhammer , Rudolf Strasser
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。

5. 发明授权

US4746759A Process for thermal cracking of 1,2-dichloroethane to form vinyl chloride 失效
标题翻译： 1,2-二氯乙烷热裂解形成氯乙烯的方法
公开(公告)号：US4746759A
公开(公告)日：1988-05-24
申请号：US923327
申请日：1986-10-27
申请人： Gerhard Dummer , Klaus Haselwarter , Hermann Klaus , Ludwig Schmidhammer , Rudolf Strasser
发明人： Gerhard Dummer , Klaus Haselwarter , Hermann Klaus , Ludwig Schmidhammer , Rudolf Strasser
IPC分类号： C07C17/00 , C07C17/25 , C07C21/06 , C07C67/00 , C07C17/24 , C07C17/34
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℃。

6. 发明授权

US4528174A Method for preparing hydrogen chloride for the ethyleneoxichlorination process 失效
标题翻译：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。

7. 发明授权

US4986975A Process for purifying hydrogen chloride from pyrolysis of 1,2-dichloroethane 失效
标题翻译：从1,2-二氯乙烷热解纯化氯化氢的方法
公开(公告)号：US4986975A
公开(公告)日：1991-01-22
申请号：US348283
申请日：1989-05-05
申请人： Ludwig Schmidhammer , Peter Hirschmann , Klaus-Peter Mohr , Hermann Klaus , Franz Haunberger
发明人： Ludwig Schmidhammer , Peter Hirschmann , Klaus-Peter Mohr , Hermann Klaus , Franz Haunberger
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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式