-
公开(公告)号：US4713601A
公开(公告)日：1987-12-15
申请号：US33842
申请日：1987-04-03
申请人： Donald E. Zahm , Gary R. Strickler
发明人： Donald E. Zahm , Gary R. Strickler
摘要： An economical astable multivibrator circuit provides a variable frequency, variable duty cycle digital signal for controlling a solid-state relay to provide power proportioning. An optical isolator receives analog input signals and converts those signals into a variable resistance signal for altering the RC time constant of the charge/discharge timing circuit. The controller is capable of driving several solid-state relays simultaneously and includes a powerstat adjustment for manually adjusting the range of power delivered to a load.
摘要翻译： 经济的非稳态多谐振荡器电路提供可变频率可变占空比数字信号，用于控制固态继电器以提供功率比例。 光隔离器接收模拟输入信号并将这些信号转换成可变电阻信号，以改变充电/放电定时电路的RC时间常数。 该控制器能够同时驱动多个固态继电器，并且包括用于手动调节传递给负载的功率范围的功率调节器。
-
公开(公告)号：US06479715B1
公开(公告)日：2002-11-12
申请号：US10042699
申请日：2002-04-09
申请人： Gary R. Strickler , Guo-Shuh J. Lee , William J. Rievert , Daniel J. LaPrairie , Edward E. Timm
发明人： Gary R. Strickler , Guo-Shuh J. Lee , William J. Rievert , Daniel J. LaPrairie , Edward E. Timm
IPC分类号： C07C2700
CPC分类号： C07C29/106 , C07C31/202
摘要： The present invention relates to a catalytic process for the preparation of alkylene glycols from alkylene oxide and water. Further, the invention relates to a method of preservation of catalysts in alkylene oxide containing systems. More in particular, it has been found that particular acids have a positive effect on the lifetime of catalyst systems based on anion exchange resins, and particularly those in the bicarbonate form.
摘要翻译： 本发明涉及从环氧烷和水制备亚烷基二醇的催化方法。 此外，本发明涉及在含烯化氧的体系中保存催化剂的方法。 更具体地，已经发现特定的酸对基于阴离子交换树脂，特别是碳酸氢盐形式的催化剂体系的寿命具有积极的影响。
-
3.发明授权公开(公告)号：US07273941B2
公开(公告)日：2007-09-25
申请号：US10495001
申请日：2002-12-04
IPC分类号： C07D301/14 , C07D301/03 , C07D301/19
CPC分类号： C07D301/19 , B01J19/006 , B01J19/2415 , B01J19/242 , B01J2219/00083 , B01J2219/00768 , B01J2219/182 , C07C29/132 , C07C31/10 , C07C33/22 , C07C31/205
摘要： A process of preparing an olefin oxide, preferably propylene oxide, and an alcohol, such as α-ethylphenyl alcohol, the process involving contacting an olefin, such as propylene, and an organic hydroperoxide, such as ethylbenzene hydroperoxide, in the presence of an epoxidation catalyst, preferably, a homogeneous molybdenum catalyst, in a single reactor system or in a multi-reactor system containing a plurality of sequentially interconnected reactors. Each reactor in the single or multi-reactor system is preferably divided into a plurality of reaction zones designed to facilitate plug flow behavior. The olefin is fed to a first reaction zone in the single reactor system or to a first reactor in the multi-reactor system. The organic hydroperoxide feed is split into a plurality of split organic hydroperoxide feedstreams, and the split feedstreams are distributed throughout the reaction zones, or the reactors, or both.
摘要翻译： 一种制备烯烃氧化物，优选环氧丙烷和醇如α-乙基苯醇的方法，该方法包括使烯烃如丙烯与有机氢过氧化物如乙苯氢过氧化物在环氧化物存在下接触 催化剂，优选均匀的钼催化剂，在单个反应器系统中或在包含多个顺序相互连接的反应器的多反应器系统中。 单反应器或多反应器系统中的每个反应器优选分成多个设计成促进活塞流动性能的反应区域。 将烯烃加入单反应器系统中的第一反应区或多反应器系统中的第一反应器。 有机氢过氧化物进料分成多个裂解的有机氢过氧化物进料流，并且分离的进料流分布在整个反应区或反应器中，或两者均分布。
-
公开(公告)号：US06211419B1
公开(公告)日：2001-04-03
申请号：US09557526
申请日：2000-04-24
IPC分类号： C07C2700
CPC分类号： C07C29/106 , C07C31/202 , C07C31/205 , C07C31/207
摘要： A method for operating an epoxide containing system which contains a catalyst is disclosed. The method comprises feeding carbon dioxide to the epoxide containing system at an amount of from 0.01 to 5.0 weight percent; and maintaining the epoxide containing system at a temperature of from 100° C. to 150° C. The catalyst has a half life of at least 40 days at 120° C. The present invention allows anion exchange resins in the bicarbonate form to be used for the hydrolysis of ethylene oxide at temperatures exceeding 100° C. The rate of catalyst swelling is minimized and lifetime of the catalyst enhanced.
摘要翻译： 公开了含有催化剂的含环氧化物体系的操作方法。 该方法包括以0.01至5.0重量％的量将二氧化碳供给含环氧化物的体系; 并将含环氧化物的体系保持在100℃至150℃的温度。催化剂在120℃下的半衰期至少为40天。本发明允许使用碳酸氢盐形式的阴离子交换树脂 用于在超过100℃的温度下水解环氧乙烷。催化剂溶胀速率最小化，催化剂寿命增加。
-
公开(公告)号：US06160187A
公开(公告)日：2000-12-12
申请号：US207724
申请日：1998-12-08
CPC分类号： C07C29/106 , Y02P20/124 , C07C31/202 , C07C31/205
摘要： A method for making glycol in an adiabatic reactor system including feeding water and an epoxide into at least one adiabatic reactor under conditions such that epoxide and the water react to form a glycol product stream. The adiabatic reactor contains a catalyst bed which undergoes swelling during its useful lifetime, and the adiabatic reactor operates under conditions sufficient to reduce the rate of catalyst swelling relative to a non-adiabatic reactor system. Other aspects of the invention include the combination of splitting the feed between multiple adiabatic reactors in combination with the cross exchange of heat between feeds and products with heat exchangers, such that an energy efficient process that provides long catalyst stability and minimal catalyst swelling results.
摘要翻译： 一种在绝热反应器系统中制备二醇的方法，包括在环氧化物和水反应形成二醇产物流的条件下将水和环氧化物加入到至少一个绝热反应器中。 绝热反应器包含在其使用寿命期间经历膨胀的催化剂床，并且绝热反应器在足以降低相对于非绝热反应器系统的催化剂膨胀速率的条件下运行。 本发明的其它方面包括将多个绝热反应器之间的进料分开与进料和具有热交换器的产物之间的交叉热交换的组合，使得提供长的催化剂稳定性和最小的催化剂溶胀的能量有效的方法。
-
公开(公告)号：US4709115A
公开(公告)日：1987-11-24
申请号：US917447
申请日：1986-10-09
申请人： Chu W. Jung , Philip E. Garrou , Gary R. Strickler
发明人： Chu W. Jung , Philip E. Garrou , Gary R. Strickler
CPC分类号： C07C6/04
摘要： A catalytic process for the disproportionation of alkenes in a distillation column reactor, whereby high conversion and selectivity are simultaneously achieved.
摘要翻译： 用于在蒸馏塔反应器中歧化烯烃的催化方法，由此同时实现高转化率和选择性。
-
公开(公告)号：US06448456B1
公开(公告)日：2002-09-10
申请号：US10095881
申请日：2002-03-11
申请人： Gary R. Strickler , Guo-Shuh J. Lee , William J. Rievert , Daniel J. LaPrairie , Edward E. Timm
发明人： Gary R. Strickler , Guo-Shuh J. Lee , William J. Rievert , Daniel J. LaPrairie , Edward E. Timm
IPC分类号： C07C2700
CPC分类号： C07C29/106 , C07C31/202
摘要： The present invention relates to a catalytic process for the preparation of alkylene glycols from alkylene oxide and water. Further, the invention relates to a method of preservation of catalysts in alkylene oxide containing systems. More in particular, it has been found that polycarboxylic acids, preferably oxalic acid, have a positive effect on the lifetime of catalyst systems based on anion exchange resins, and particularly those in the bicarbonate and oxalate forms.
摘要翻译： 本发明涉及从环氧烷和水制备亚烷基二醇的催化方法。 此外，本发明涉及在含环氧烷的体系中保存催化剂的方法。 更具体地，已经发现多羧酸，优选草酸，对基于阴离子交换树脂，特别是碳酸氢盐和草酸盐形式的催化剂体系的寿命具有积极的影响。
-
公开(公告)号：US6137015A
公开(公告)日：2000-10-24
申请号：US206888
申请日：1998-12-08
CPC分类号： C07C29/106 , Y02P20/52
摘要： A process for preparing alkylene glycols including reacting an alkylene oxide with water in the presence of a combination of additives and an anion exchange resin, wherein the combination of additives comprises carbon dioxide and an organic or inorganic base provided in an amount sufficient to maintain a pH of the reaction mixture between about 5.0 and 9.0, with the proviso that, when the base is bicarbonate or carbonate, then the anion exchange resin is a trimethyl benzyl ammonium anion exchange resin. A particularly preferred method of this invention is to react ethylene oxide with water in the presence of a halogenate or bicarbonate-type anionic exchange resin (such as a DOWEX.TM. MSA-1 type resin), carbon dioxide, and sodium hydroxide. Some advantages of this invention are that it provides desirable catalyst lifetime and activity, minimizes resin swelling, and provides a desirable, sustained selectivity to alkylene glycol.
摘要翻译： 一种制备亚烷基二醇的方法，包括在添加剂和阴离子交换树脂的组合的存在下使烯化氧与水反应，其中添加剂的组合包括二氧化碳和提供足够量以保持pH的有机或无机碱 的反应混合物为约5.0至9.0，条件是当碱为碳酸氢盐或碳酸盐时，阴离子交换树脂为三甲基苄基铵阴离子交换树脂。 本发明特别优选的方法是在卤化物或碳酸氢根离子交换树脂（如DOWEX TM MSA-1型树脂），二氧化碳和氢氧化钠的存在下使环氧乙烷与水反应。 本发明的一些优点是其提供所需的催化剂寿命和活性，使树脂溶胀最小化，并为亚烷基二醇提供期望的持续选择性。
-
公开(公告)号：US4471146A
公开(公告)日：1984-09-11
申请号：US463436
申请日：1983-02-03
申请人： Gary R. Strickler
发明人： Gary R. Strickler
CPC分类号： C07C5/48
摘要： Prepare vinyl aromatic compounds in a fluidized bed by oxydehydrogenation in the presence of an alkaline earth metal-nickel phosphate catalyst.
摘要翻译： 在碱土金属 - 镍磷酸盐催化剂存在下，通过氧化脱氢在流化床中制备乙烯基芳族化合物。
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.016 秒)
