公开(公告)号：US4314053A

公开(公告)日：1982-02-02

申请号：US147838

申请日：1980-05-08

申请人： Chi-Hung Lin ,  Linus K. Leung

发明人： Chi-Hung Lin ,  Linus K. Leung

IPC分类号： C08F6/02 ,  C08F6/00 ,  C08F6/08

CPC分类号： C08F6/02

摘要： Polyolefin polymer powder containing active catalyst residues is deactivated by (1) purging with an inert gas containing water vapor and (2) then contacting such powder with a gas mixture containing an inert gas, water vapor, and a third component selected from the group consisting of oxygen, carbon monoxide, carbon dioxide, C.sub.1 -C.sub.4 alcohols and C.sub.2 -C.sub.4 alkeneoxides.

摘要翻译： 含有活性催化剂残余物的聚烯烃聚合物粉末通过（1）用含有水蒸汽的惰性气体吹洗和（2）然后使这种粉末与含有惰性气体，水蒸气和第三组分的气体混合物接触而失活， 的氧气，一氧化碳，二氧化碳，C1-C4醇和C2-C4烯氧化物。

公开(公告)号：US4620049A

公开(公告)日：1986-10-28

申请号：US666896

申请日：1984-10-31

申请人： Gregory E. Schmidt ,  Linus K. Leung ,  Lawrence J. Beck ,  David S. Chang

发明人： Gregory E. Schmidt ,  Linus K. Leung ,  Lawrence J. Beck ,  David S. Chang

IPC分类号： C07C2/06 ,  C08F10/08 ,  C07C2/00

CPC分类号： C07C2/06 ,  C08F10/08 ,  C08F2400/02 ,  Y10S208/01

摘要： The method is particularly adapted for controlling the molecular weight of a product output from a polybutene reactor. The method includes the steps of: deriving from the operating parameter of a polybutene reactor system a formula which correlates molecular weight as determined by product viscosity or other parameters of the product output with operating variables such as temperature of the reactor and concentration of isobutylene in the reactor, which concentration can be controlled by the amount of catalyst, e.g., aluminum chloride, being fed into the reactor; monitoring (a) the temperature of the reactor, (b) the concentration of isobutylene in the reactor, (c) the flow of coolant supplied to the reactor for controlling the temperature thereof and (d) the feed rate of catalyst into the reactor; calculating with said algorithm the approximate molecular weight of the product output; determining if the desired product molecular weight is higher or lower than the calculated molecular weight; and, if higher or lower, altering, through use of the formula, the temperature and/or the concentration of isobutylene in the reactor to obtain the desired product molecular weight.Also the method can include the step of adding moisture to the feed or the reactor for lowering the molecular weight of the polybutene product output.The apparatus includes a reactor, a computer and various sensing, monitoring and control devices for carrying out the steps of the method.

摘要翻译： 该方法特别适于控制从聚丁烯反应器输出的产物的分子量。 该方法包括以下步骤：从聚丁烯反应器系统的操作参数得出将通过​​产物粘度或其他产物输出参数确定的分子量与反应器温度和异丁烯浓度等操作变量相关联的公式， 反应器，该浓度可以通过进料到反应器中的催化剂的量例如氯化铝来控制; 监测（a）反应器的温度，（b）反应器中异丁烯的浓度，（c）供应给反应器的冷却剂流量用于控制其温度，和（d）催化剂进入反应器的进料速率; 用所述算法计算产品输出的近似分子量; 确定所需产物分子量是否高于或低于计算的分子量; 并且如果更高或更低，通过使用公式改变反应器中的异丁烯的温度和/或浓度以获得所需的产物分子量。 该方法还可以包括向进料或反应器中加入水分以降低聚丁烯产物的分子量的步骤。 该装置包括反应器，计算机以及用于执行该方法的步骤的各种感测，监视和控制装置。

公开(公告)号：US4235747A

公开(公告)日：1980-11-25

申请号：US31378

申请日：1979-04-19

申请人： Linus K. Leung

发明人： Linus K. Leung

IPC分类号： C08F4/64 ,  C08F10/00

CPC分类号： C08F10/00

摘要： Polymerization performance of organoaluminum reduced, electron donor complexed, brown solid, beta titanium trichloride catalyst component is improved in terms of polymer particle size by contacting said brown solid with at least one aluminum alkyl and at least one alpha-olefin in amounts and under conditions such that a low yield, polyalphaolefin structure is formed around the brown solid.

摘要翻译： 通过使所述棕色固体与至少一种烷基铝和至少一种α-烯烃在量和条件下接触，使得有机铝还原的聚合性能，电子给体络合的，棕色固体，β三氯化钛催化剂组分在聚合物粒度方面得到改善 在棕色固体周围形成低产率的聚α-烯烃结构。

公开(公告)号：US07935845B2

公开(公告)日：2011-05-03

申请号：US11815576

申请日：2006-03-20

申请人： Thomas M. Bartos ,  Linus K. Leung

发明人： Thomas M. Bartos ,  Linus K. Leung

IPC分类号： C07C51/16

CPC分类号： C07C51/265 ,  B01D3/009 ,  B01J2219/00006 ,  Y02P20/123 ,  Y02P20/127 ,  Y02P20/51 ,  Y02P20/57 ,  Y02P70/34 ,  C07C63/26

摘要： A process and apparatus for manufacture of aromatic carboxylic acids comprises a liquid phase oxidation of aromatic hydrocarbon feed materials and treatment of a high pressure off-gas from the liquid phase oxidation to separate water and reaction solvent and preferentially apportion liquid phase oxidation by-product species between gas and liquid phase resulting from separation. Processes for making pure forms of aromatic carboxylic acid also are included.

摘要翻译： 用于制备芳族羧酸的方法和装置包括芳族烃进料的液相氧化和从液相氧化到分离水和反应溶剂的高压废气的处理，并优先分配液相氧化副产物物质 在气相和液相之间产生分离。 还包括制备纯形式的芳族羧酸的方法。