公开(公告)号：US5302771A

公开(公告)日：1994-04-12

申请号：US15269

申请日：1993-02-08

申请人： Ramdas Venkatram ,  George E. Milliman

发明人： Ramdas Venkatram ,  George E. Milliman

IPC分类号： C07C7/148 ,  C08F10/06 ,  C07C7/12 ,  C07C7/00

CPC分类号： C07C7/1485 ,  C08F10/06

摘要： The present invention is directed to a process for removing impurities from hydrocarbon streams, preferably light ends, such as propylene and ethylene, which is preferably in the liquid phase, by contacting the hydrocarbon stream containing an initial amount of an impurity with a chemical adsorbent which is composed of a modified alumina having a surface area within the range of about 10 m.sup.2 /g to about 300 m.sup.2 /g and a pore volume within the range of about 0.1 mL/g to about 1 mL/g under contacting conditions effective to result in a purified hydrocarbon stream containing a reduced amount of impurities, i.e., less than about 0.5% relative to the initial amount of the acid impurity present in the hydrocarbon stream, and more preferably within the 10 ppb range.

摘要翻译： 本发明涉及通过使含有初始量的杂质的烃流与化学吸附剂接触来从烃流，优选轻馏分如丙烯和乙烯中除去杂质的方法，该方法优选为液相 由具有约10m 2 / g至约300m 2 / g范围内的表面积和约0.1mL / g至约1mL / g范围内的孔体积的改性氧化铝组成，所述接触条件有效地得到结果 在含有减少量杂质的纯化烃流中，即相对于烃流中存在的酸杂质的初始量小于约0.5％，更优选在10ppb范围内。

公开(公告)号：US4219675A

公开(公告)日：1980-08-26

申请号：US9895

申请日：1979-02-06

申请人： Ramdas Venkatram ,  Vasanth R. Kamath ,  Chester J. Smith

发明人： Ramdas Venkatram ,  Vasanth R. Kamath ,  Chester J. Smith

IPC分类号： C07C67/00 ,  C07C407/00 ,  C07C409/34 ,  C07C409/38 ,  C07C179/10 ,  C07C179/18

CPC分类号： C07C407/003 ,  C07C407/00

摘要： A batch process for the manufacture of liquid organic peroxides, such as peroxy esters and diacyl peroxides, by reacting an acid chloride, a hydroperoxide and an alkali metal hydroxide uses a countercurrent, packed distillation column for recovering a purer, drier product with higher yield than previous batch drying processes.

摘要翻译： 通过使酰基氯，氢过氧化物和碱金属氢氧化物反应制备液体有机过氧化物如过氧酯和二酰基过氧化物的分批方法使用逆流填充蒸馏塔，以更高的收率回收更纯的干燥产物 以前的批次干燥过程。

公开(公告)号：US07662887B1

公开(公告)日：2010-02-16

申请号：US12242971

申请日：2008-10-01

申请人： Richard Joseph Severt ,  Antonio Gutierrez ,  Jacob Emert ,  Ramdas Venkatram ,  Jeremy Roger Spencer ,  Allison Joan Baker

发明人： Richard Joseph Severt ,  Antonio Gutierrez ,  Jacob Emert ,  Ramdas Venkatram ,  Jeremy Roger Spencer ,  Allison Joan Baker

IPC分类号： C08F289/00 ,  C08F8/00 ,  C08F8/46

CPC分类号： C08F8/46 ,  C08F8/22 ,  C08F110/10

摘要： The residual chlorine content of a polyolefin-substituted carboxylic acylating agent formed by a halogen-assisted reaction of a polyalkene and at least one olefinic, monounsaturated mono- or dicarboxylic acid, anhydride or ester, is reduced when the reaction is conducted in the presence of a controlled amount of a metal compound.

摘要翻译： 通过聚烯烃和至少一种烯属单不饱和单羧酸或二羧酸酐或酯的卤素辅助反应形成的聚烯烃取代的羧酸酰化剂的残留氯含量在反应在 受控量的金属化合物。

公开(公告)号：US20090171031A1

公开(公告)日：2009-07-02

申请号：US11964137

申请日：2007-12-26

申请人： Richard Joseph Severt ,  Antonio Gutierrez ,  Jacob Emert ,  Ramdas Venkatram ,  Jeremy Roger Spencer ,  Allison Joan Baker

发明人： Richard Joseph Severt ,  Antonio Gutierrez ,  Jacob Emert ,  Ramdas Venkatram ,  Jeremy Roger Spencer ,  Allison Joan Baker

IPC分类号： C08F289/00

CPC分类号： C08F8/46 ,  C08F8/22 ,  C08F110/10

摘要： The residual chlorine content of a polyolefin-substituted carboxylic acylating agent formed by a halogen-assisted reaction of a polyalkene and at least one olefinic, monounsaturated mono- or dicarboxylic acid, anhydride or ester, is reduced when the reaction is conducted in the presence of a controlled amount of a metal compound.

摘要翻译： 通过聚烯烃和至少一种烯属单不饱和单羧酸或二羧酸酐或酯的卤素辅助反应形成的聚烯烃取代的羧酸酰化剂的残留氯含量在反应在 受控量的金属化合物。

公开(公告)号：US4717700A

公开(公告)日：1988-01-05

申请号：US874525

申请日：1986-06-16

申请人： Ramdas Venkatram ,  John C. Roarty ,  Theodorus M. Wortel ,  James L. Carter

发明人： Ramdas Venkatram ,  John C. Roarty ,  Theodorus M. Wortel ,  James L. Carter

IPC分类号： B01J29/62 ,  B01J29/06 ,  B01J29/54 ,  B01J29/60 ,  B01J37/08 ,  C01B39/32 ,  C10G35/095 ,  B01J37/00

CPC分类号： B01J37/08 ,  B01J29/06 ,  B01J29/60

摘要： A zeolite-based catalyst containing a metal oxide or oxide complex is dried by heating while in contact with the gas. Heat input to the catalyst and hence the rate of catalyst temperature increase are controlled so as to limit the rate of water evolution from the catalyst and the water vapor concentration in the gas, thereby to maintain the metal oxide or complex in dispersed form within the pores of the zeolite.

摘要翻译： 含有金属氧化物或氧化物络合物的沸石基催化剂在与气体接触的同时加热干燥。 控制催化剂的热量输入和催化剂温度升高的速度，以限制从催化剂中释放的水的速率和气体中的水蒸气浓度，从而将分散形式的金属氧化物或络合物保持在孔内 的沸石。