公开(公告)号：US07309804B2

公开(公告)日：2007-12-18

申请号：US10280704

申请日：2002-10-25

申请人： Helmut Grumann ,  Manfred Stoger ,  Jurgen Eichler ,  Dieter Jaculi ,  Winfried Lork ,  Arend Greve ,  Jan Wilkens ,  Peter Kammerhofer ,  Hermann Tropp

发明人： Helmut Grumann ,  Manfred Stoger ,  Jurgen Eichler ,  Dieter Jaculi ,  Winfried Lork ,  Arend Greve ,  Jan Wilkens ,  Peter Kammerhofer ,  Hermann Tropp

IPC分类号： C07C17/02

CPC分类号： C07C17/38 ,  C07C17/156 ,  C07C19/045

摘要： A process for the preparation of 1,2-dichloroethane that is very pure with respect to chloral or/and chloral hydrate and carbon dioxide is described herein. The process comprises oxychlorination of ethylene, using hydrogen chloride and an oxygen-containing gas, and alkali treatment of the 1,2-dichloroethane produced. In the process, the carbon dioxide present in the 1,2-dichloroethane-containing organic phase is, in accordance with the invention, substantially separated out from the 1,2-dichloroethane-containing organic phase before the alkali treatment.

摘要翻译： 本文描述了制备相对于氯醛或/和水合氯醛和二氧化碳非常纯的1,2-二氯乙烷的方法。 该方法包括使用氯化氢和含氧气体对乙烯进行氧氯化，并对所生产的1,2-二氯乙烷进行碱处理。 在该方法中，根据本发明，存在于含1,2-二氯乙烷的有机相中的二氧化碳在碱处理之前基本上与含1,2-二氯乙烷的有机相分离。

公开(公告)号：US20110230684A1

公开(公告)日：2011-09-22

申请号：US12998174

申请日：2009-09-03

申请人： Michael Benje ,  Peter Kammerhofer ,  Klaus Krejci ,  Rainer Kampschulte ,  Helmut Grumann

发明人： Michael Benje ,  Peter Kammerhofer ,  Klaus Krejci ,  Rainer Kampschulte ,  Helmut Grumann

IPC分类号： C07C17/23 ,  B01J19/00 ,  G05D7/00 ,  B01J19/12

CPC分类号： B01J19/088 ,  B01J19/12 ,  B01J19/2415 ,  B01J2219/00157 ,  B01J2219/0024 ,  B01J2219/0894 ,  C07C17/25 ,  C07C21/06

摘要： The invention relates to a process and an apparatus for product-conserving thermal dissociation of halogenated aliphatic hydrocarbons, preferably for thermal dissociation of 1,2-dichloroethane to vinyl chloride. This uses chemical dissociation promoters and/or physical measures which initiate the dissociation reaction. The initiation of the dissociation reaction, with the same conversion, lowers the temperature level in the reaction mixture and the temperature of the dissociation gas on exit from the dissociation furnace. The amount and the exit temperature of the flue gas from the radiation zone of the dissociation furnace likewise decrease at the same time. It order to be able to implement the product-conserving mode of operation in the radiation zone of the dissociation furnace and simultaneously to maintain the function of the convection zone, the heat input to the dissociation furnace is divided such that a portion of the heat introduced by underfiring is introduced by burners in the radiation zone, and the other portion of the heat supplied by underfiring is introduced by burners arranged at the exit of the flue gas from the radiation zone.The partial decoupling of the heat input of the radiation zone and of the convection zone makes possible a particularly product-conserving mode of operation.

摘要翻译： 本发明涉及一种用于产物保存卤代脂族烃的热解离的方法和装置，优选用于1,2-二氯乙烷热解离成氯乙烯。 这使用化学解离启动子和/或引发解离反应的物理措施。 以相同的转化率开始解离反应降低了反应混合物中的温度水平和从解离炉出来的解离气体的温度。 来自离解炉的辐射区域的烟气的量和出口温度同时降低。 为了能够在解离炉的辐射区域中实现产品保存的运行模式，同时保持对流区的功能，将分离炉的热量输入分开，使一部分热量引入 通过燃烧器在辐射区域中引燃，并且由燃烧器供应的热量的另一部分由设置在烟道气出口处的燃烧器从辐射区引入。 辐射区域和对流区域的热输入的部分解耦使得可以实现特别节省产品的操作模式。

公开(公告)号：US20110237848A1

公开(公告)日：2011-09-29

申请号：US12998173

申请日：2009-09-03

申请人： Michael Benje ,  Peter Kammerhofer ,  Klaus Krejci ,  Rainer Kampschulte ,  Helmut Grumann

发明人： Michael Benje ,  Peter Kammerhofer ,  Klaus Krejci ,  Rainer Kampschulte ,  Helmut Grumann

IPC分类号： C07C17/00 ,  B01J19/00

CPC分类号： B01J19/088 ,  B01J19/12 ,  B01J19/24 ,  B01J2219/00157 ,  B01J2219/00222 ,  B01J2219/0894 ,  C07C17/25 ,  C07C21/06

摘要： The invention is directed to a process and to an apparatus for saving fuel in furnaces for thermal dissociation of halogenated aliphatic hydrocarbons, especially of 1,2-dichloroethane, using chemical dissociation promoters or physical measures which initiate the dissociation reaction.The initiation of the dissociation reaction lowers the temperature level in the reaction mixture with the same conversion. This can also lower the mean firing chamber temperature and save fuel.In a preferred process variant, flue gas leaving the convection zone of the dissociation oven is analyzed and its dew point is calculated. The dew point of the flue gas or the conversion of the dissociation reaction serves as command parameter for the intensity of the physical measure for initiation and/or for the amount of the chemical dissociation promoter added and/or for the amount of fuel.In a further preferred process variant, the latent heat content of the flue gas is used to preheat the burner air or other media.

摘要翻译： 本发明涉及一种方法和装置，用于在使用化学解离促进剂或开始解离反应的物理措施的卤化脂族烃，特别是1,2-二氯乙烷的热解离的炉中节省燃料。 解离反应的开始以相同的转化率降低反应混合物中的温度水平。 这也可以降低平均燃烧室温度并节省燃料。 在优选的方法变体中，分析离开解离炉的对流区域的烟气，并计算其露点。 烟气的露点或解离反应的转化作为起始物理测量强度和/或加入的化学解离促进剂的量和/或燃料量的指标参数。 在另一优选的方法变体中，烟道气的潜热用于预热燃烧器空气或其它介质。

公开(公告)号：US20110230683A1

公开(公告)日：2011-09-22

申请号：US12998172

申请日：2009-09-03

申请人： Michael Benje ,  Peter Kammerhofer ,  Klaus Krejci ,  Rainer Kampschulte ,  Helmut Grumann

发明人： Michael Benje ,  Peter Kammerhofer ,  Klaus Krejci ,  Rainer Kampschulte ,  Helmut Grumann

IPC分类号： C07C17/25 ,  G05D7/00 ,  B01J19/00 ,  B01J19/08

CPC分类号： B01J19/088 ,  B01J19/12 ,  B01J19/24 ,  B01J2219/00157 ,  B01J2219/0024 ,  B01J2219/0896 ,  C07C17/25 ,  C07C21/06

摘要： Process and apparatus for producing ethylenically unsaturated halogenated hydrocarbonsThe invention relates to a process and an apparatus for preparing ethylenically unsaturated halogenated hydrocarbons, preferably vinyl chloride by thermal dissociation of 1,2-dichloroethane, using physical or chemical measures which initiate the dissociation reaction.The process/apparatus described makes it possible to increase the amount produced using dissociation reactors of a given size considerably. Use is made here of initiating measures to increase the heat flux through the wall of the reaction tube and at the same time the feed stream and the heating power of the reaction furnace are increased so that the conversion of the reaction is not significantly increased compared to processes without use of initiating measures.To be able to continue to operate the process economically despite the reduction in the reaction temperature, the process parameters have to be set so that at least 50% of the amount of feed used are vaporized by means of the sensible heat content of the reaction mixture leaving the reaction zone.

摘要翻译： 用于生产烯属不饱和卤代烃的方法和装置本发明涉及使用引发解离反应的物理或化学措施制备烯属不饱和卤代烃，优选氯乙烯通过1,2-二氯乙烷的热解作用的方法和装置。 所描述的方法/装置使得可以显着增加使用给定尺寸的解离反应器产生的量。 在这里使用的措施是增加通过反应管的壁的热通量，同时反应炉的进料流和加热功率增加，使得反应的转化率不会显着增加 过程不使用启动措施。 尽管反应温度降低，为了能够经济地继续操作该方法，必须设定工艺参数，使得所用进料量的至少50％通过反应混合物的显热含量蒸发 离开反应区。