-
1.发明授权
公开(公告)号：US4041088A
公开(公告)日：1977-08-09
申请号：US739484
申请日：1976-11-08
CPC分类号： C08F2/38 , C08F36/04 , Y10S585/923
摘要： Recirculation process and apparatus for the preparation of normally liquid telomers derived from the reaction of a gaseous taxogen with a solution in a liquid telogen, such as toluene, of an organometal telomerization initiator, such as a mixture or complex of n-butyllithium and potassium t-butoxide, in a container, wherein a controlled stream of the gaseous taxogen is continuously passed through fine apertures, as in a screen, into the liquid telogen solution of said initiator while said telogen solution is passed from said container through a reaction zone in a reaction chamber, whereby to produce the normally liquid telomer, and, thereafter, said liquid telomer is continuously returned to commingle with the solution in the container of said telogen and initiator, and continuously recirculating the contents of said container into said reaction zone for further reaction with said gaseous taxogen until the desired concentration of liquid telomer is produced. The process is most desirably carried out in a controlled manner to prevent any undesirable excess of the taxogen from accumulating during the chain transfer step of the telomerization process. The process also results in the production of novel liquid telomers or liquid telomers having novel and advantageous properties in relation to otherwise generally similar liquid telomers heretofore known to the art.
摘要翻译： 用于制备来自气态发酵剂与溶液的液体前体（如甲苯）的有机金属调聚引发剂如正丁基锂和钾的混合物的反应的循环过程和装置 在容器中，其中将受控流的气态色素原连续地通过如丝网中的细小孔进入所述引发剂的液体前体溶液中，同时将所述前体溶液从所述容器通过反应区 反应室，由此产生正常液体的调聚物，然后使所述液体调聚物连续地返回以与所述洗脱剂和引发剂的容器中的溶液相混合，并将所述容器的内容物连续再循环到所述反应区域中用于进一步的反应 与所述气态紫杉醇直到产生所需浓度的液体调聚物。 该方法最希望以受控的方式进行，以防止在调聚过程的链转移步骤过程中不必要的过量的发酵剂积累。 该方法还导致新型液体调节剂或液体调聚物的生产，其具有与本领域迄今为止已知的其它通用类似的液体调节剂相关的新型和有利的性质。
-
公开(公告)号：US4206191A
公开(公告)日：1980-06-03
申请号：US970531
申请日：1978-12-18
IPC分类号： C01B21/092 , C01D15/00
CPC分类号： C01B21/0926 , C01B3/08 , Y02E60/36
摘要： A low temperature method of preparing finely divided lithium amide. A mixture is first formed of bulk pieces of lithium metal with a catalyst such as active metallic cobalt in an inert liquid aromatic hydrocarbon, such as toluene, at about 0.degree. C. to about -60.degree. C. Anhydrous liquid ammonia is then added, aided by stirring, the lithium metal dissolving, two immiscible phases forming, one a so-called lithium-ammonia bronze solution being the top phase, and the toluene being the bottom phase. The formation of the lithium amide is then effected by raising the temperature under conditions of stirring, hydrogen and excess ammonia being liberated and the lithium amide, generally light grey in color, is formed which separates out in a very finely divided solid state, as a slurry in the toluene, and is recovered.
摘要翻译： 制备细分散的氨基化锂的低温方法。 混合物首先在大约0℃至大约-60℃的惰性液体芳烃（如甲苯）中由大量锂金属与催化剂如活性金属钴形成，然后加入无水液氨， 通过搅拌辅助，锂金属溶解，形成两个不混溶相，一个是所谓的顶级相的氨 - 氨青铜溶液，甲苯是底相。 然后通过在搅拌条件下升高温度，释放氢气和过量的氨来实现氨基化锂的形成，并且形成通常为浅灰色的氨基化锂，其以非常精细分散的固体状态分离出来，作为 在甲苯中淤浆，并回收。
-
公开(公告)号：US4049732A
公开(公告)日：1977-09-20
申请号：US725640
申请日：1976-09-22
CPC分类号： C08F2/38 , Y10S585/922 , Y10S585/926 , Y10S585/931
摘要： Continuous process and apparatus for the preparation of normally liquid telomers derived from the reaction of a liquid telogen, such as toluene, with a polymerizable monomeric taxogen in gaseous form, such as 1,3-butadiene monomer, in the presence of an organometal telomerization initiator, such as a mixture or complex of n-butyllithium and potassium t-butoxide, wherein a controlled stream of the gaseous taxogen is continuously passed through fine apertures, as in a screen, into the liquid telogen containing said initiator disposed in a reaction zone in a reaction chamber, whereby to produce the normally liquid telomer, and, thereafter said telomer is continuously passed through a conduit into an additional reaction zone or zones and reacted in similar manner with additional gaseous taxogen until the desired concentration of liquid telomer is produced. The process is most desirably carried out in a controlled manner to prevent any undesirable excess of the taxogen from accumulating during the chain transfer step of the telomerization process. The process also results in the production of novel liquid telomers or liquid telomers having novel and advantageous properties in relation to otherwise generally similar liquid telomers heretofore known to the art.
摘要翻译： 在有机金属调聚引发剂存在下，制备源自液体循环调节剂如甲苯的液体调节剂与气态形式的可聚合单体发酵剂如1,3-丁二烯单体的连续方法和装置 ，例如正丁基锂和叔丁醇钾的混合物或络合物，其中将气态发酵剂的受控流连续地通过如筛网中的细孔，进入包含设置在反应区中的所述引发剂的液体前体 反应室，由此产生正常液体的调聚物，此后，所述调聚物连续地通过导管进入另外的反应区或区域，并以类似的方式与额外的气态紫杉醇反应，直到产生所需浓度的液体调聚物。 该方法最希望以受控的方式进行，以防止在调聚过程的链转移步骤过程中不必要的过量的发酵剂积累。 该方法还导致新型液体调节剂或液体调聚物的生产，其具有与本领域迄今为止已知的其它通用类似的液体调节剂相关的新型和有利的性质。
-
公开(公告)号：US4006095A
公开(公告)日：1977-02-01
申请号：US239993
申请日：1972-03-31
CPC分类号： C01B6/06
摘要： Preparation of stable solutions of aluminum hydride in liquid hydrocarbons such as benzene or toluene by a one-step reaction between, for instance, 1 mole of aluminum chloride with 3 moles of lithium hydride in said liquid hydrocarbon medium and in the presence of a weak ether base such as dimethyl ether, an aliphatic tertiary amine such as trimethylamine being added.
摘要翻译： 在液体烃如苯或甲苯中，通过在所述液体烃介质中，例如1摩尔氯化铝与3摩尔氢化锂之间的一步反应，在弱乙醚存在下制备氢化铝的稳定溶液 碱如二甲醚，加入脂族叔胺如三甲胺。
-
公开(公告)号：US4069267A
公开(公告)日：1978-01-17
申请号：US736262
申请日：1976-10-27
IPC分类号： C07F3/02
CPC分类号： C07F3/02
摘要： Stable diorganomagnesiums are prepared which are soluble in acyclic liquid hydrocarbons and represent novel and highly useful compositions. They are prepared, for instance, by forming a mixture of magnesium metal powder in an acyclic liquid hydrocarbon to which are added a C.sub.1 -C.sub.4 n-alkyl halide, such as n-butyl chloride, and a n-alkyl halide containing at least 6 carbon atoms, such as n-octyl chloride, and effecting reaction to convert them to their corresponding dialkylmagnesiums. Then, a secondary or tertiary organolithium compound, such as sec- or tert-butyllithium, is added, in the form of a solution in an acyclic liquid hydrocarbon, and the byproduct halide salts which were formed and are present in the reaction mixture are separated from the resulting stable solution of the diorganomagnesium complex by filtration or by equivalent separation procedures. The resulting stable solutions of the said complex of diorganomagnesiums can be produced in a variety of acyclic liquid hydrocarbons, or mixtures of said acyclic liquid hydrocarbons, including those which are of linear or branched character.
摘要翻译： 制备稳定的二有机镁，其可溶于无环液体烃并代表新的和非常有用的组合物。 它们例如通过在非循环液体烃中形成镁金属粉末的混合物来制备，向其中加入C1-C4正烷基卤化物如正丁基氯和含有至少6个的正烷基卤 碳原子，例如正辛基氯，并进行反应以将它们转化成它们相应的二烷基镁。 然后，以无环液体烃中的溶液的形式加入仲或叔丁基锂的仲或叔有机锂化合物，分离形成并存在于反应混合物中的副产物卤化物盐 通过过滤或通过相等的分离程序从得到的二有机镁络合物的稳定溶液中。 所得到的所述二有机镁络合物的稳定溶液可以在各种无环液体烃或所述无环液体烃的混合物中制备，包括具有直链或支链特性的那些。
-
公开(公告)号：US3994741A
公开(公告)日：1976-11-30
申请号：US562354
申请日：1975-03-26
CPC分类号： C04B33/13
摘要： Production of building bricks utilizing as an ingredient thereof, advantageously in substantial or in major proportion of brick-forming compositions or mixtures of ingredients, ore residues obtained from the extraction of lithium values from beta-spodumene. The said residues so utilized result from a process in which beta-spodumene is subjected to a sulfuric acid roast, the lithium values are then extracted from the acid-roast product by an aqueous extraction liquid, followed by neutralization with lime or limestone, and separation of the formed lithium sulfate by filtration, leaving the ore residues which are then utilized in admixture with other ingredients to produce bricks possessing excellent strength and other desirable properties.
摘要翻译： 生产利用其成分的建筑砖，有利地以实质或主要比例的成砖组合物或成分混合物，从从β-锂辉石中提取锂值得到的矿渣。 所使用的所述残余物是由β-锂辉石经受硫酸焙烧的方法产生的，然后通过含水萃取液从酸 - 焙烧产物中提取锂值，然后用石灰或石灰石中和，分离 通过过滤形成的硫酸锂，留下矿石残余物，然后与其他成分混合使用以产生具有优异强度和其它所需性能的砖。
-
-
-
-
-
搜索结果
6 条记录 (耗时 0.018 秒)
