Abstract: In a process for the selective production of meta-diisopropylbenzene, a C9+aromatic hydrocarbon feedstock containing meta- and ortho-diisopropylbenzene is contacted with benzene under conversion conditions with a catalyst comprising a molecular sieve selected from the group consisting of zeolite beta, mordenite and a porous crystalline inorganic oxide material having an X-ray diffraction pattern including the d-spacing maxima at 12.4±0.25, 6.90±15, 3.57±0.07 and 3.42±0.07 Angstrom. The contacting step selectively converts ortho-diisopropylbenzene in the feedstock to produce an effluent in which the ratio of meta-diispropylbenzene to ortho-diispropylbenzene is greater than that of the feedstock. The effluent is the fed to a separation zone for recovery of a product rich in meta-diisopropylbenzene.

Abstract: Fluid permeable graphite article in the form of a perforated flexible graphite sheet having increased electrical and thermal conductivity transverse to the surfaces of the sheet.

Abstract: A process for the disproportionation of cumene is disclosed which comprises the step of contacting a feed containing cumene, under disproportionation conditions, with a catalyst comprising a molecular sieve, preferably TEA-mordenite. The contacting step disproportionates at least part of the cumene in the feed to provide a disproportionation effluent containing benzene and a mixture of diisopropylbenzene isomers. The effluent is then recovered and contains, prior to any separation step, less 1% of ortho-diisopropylbenzene by weight of the total diisopropylbenzene content of said effluent, less than 1 wt % of n-propylbenzene, less than 5 wt % of triisopropylbenzenes and less than 5 wt % of disproportionation products other than benzene and diisopropylbenzenes.

Abstract: A membrane electrode assembly is provided comprising a pair of electrodes and an ion exchange membrane positioned between the electrodes, at least one of the electrodes being formed of a sheet of a compressed mass of expanded graphite particles having a plurality of transverse fluid channels passing through the sheet between first and second opposed surfaces of the sheet, one of opposed surfaces abutting said ion exchange membrane, said transverse fluid channels being formed by mechanically impacting an opposed surface of the sheet to displace graphite within the sheet at predetermined locations.

Abstract: An integrated process for the production of a dialkyl carbonate and a diol from an alkylene oxide, carbon dioxide and an aliphatic monohydric alcohol is described in which an alkylene oxide is first reacted with carbon dioxide in the presence of a halogen-free carbonation catalyst to provide a corresponding cyclic carbonate and the cyclic carbonate is then reacted with an aliphatic monohydric alcohol in the presence of the carbonation catalyst and/or a transesterification catalyst and recycling the carbonation catalyst to provide a corresponding dialkyl carbonate and diol, wherein the dialkyl carbonate product exhibits a halogen concentration of about 5 ppm or less.

Abstract: In a process for the selective production of meta-diisopropylbenzene, a C9+ aromatic hydrocarbon feedstock containing meta- and ortho-diisopropylbenzene is contacted with benzene under conversion conditions with a catalyst comprising a molecular sieve selected from the group consisting of zeolite beta, mordenite and a porous crystalline inorganic oxide material having an X-ray diffraction pattern including the d-spacing maxima at 12.4±0.25, 6.9±0.15, 3.57±0.07 and 3.42±0.07 Angstrom. The contacting step selectively converts ortho-diisopropylbenzene in the feedstock to produce an effluent in which the ratio of meta-diisopropylbenzene to ortho-diisopropylbenzene is greater than that of the feedstock. The effluent is the fed to a separation zone for recovery of a product rich in meta-diisopropylbenzene.

Abstract: Fluid permeable graphite article in the form of a perforated flexible graphite sheet having increased electrical and thermal conductivity transverse to the surfaces of the sheet.

Abstract: There is provided a process for converting methanol and/or dimethyl ether to a product containing olefin, e.g., C2 to C4 olefins, C9+ aromatics and non-C9+ aromatics which comprises: 1) contacting a feed which contains methanol and/or dimethyl ether with a catalyst comprising a porous crystalline material, said contacting step being conducted in the presence of aromatics comprising C9 or C9+ aromatic compound produced in said process under conversion conditions including a temperature of 350° C. to 480° C. and a methanol partial pressure in excess of 10 psia (70 kPa), said porous crystalline material having a Diffusion Parameter for 2,2-dimethylbutane of about 0.1 sec−1 to about 20 sec−1 when measured at a temperature of 120° C.

Abstract: An improved method enables preparation of articles for a variety of applications, including embossing or otherwise shaping to form a variety of articles. A plurality of thin, preferably resin-impregnated, flexible graphite sheets are arranged to form zones in a composite material having a graded density or other characteristic. Variation of properties between zones in the stock material formed is useful for achieving a desired set of properties in the formation of articles such as those useful in electrochemical fuel cells and double-layer capacitors.

Abstract: An electrode for an electrochemical fuel cell is provided. More particularly, an electrode formed of a sheet of a compressed mass of expanded graphite particles having a plurality of transverse fluid channels passing through the sheet between first and second opposed surfaces of the sheet, is provided. The electrode is treated with a water resistant additive sufficient to provide utility as a cathode in an electrochemical fuel cell.

Abstract: A graphite article useful in producing a membrane electrode assembly comprising a pair of electrodes and an ion exchange membrane positioned between the electrodes is presented. At least one of the electrodes is formed of a sheet of a compressed mass of expanded graphite particles having a plurality of transverse fluid channels passing through the sheet between first and second opposed surfaces of the sheet, one of opposed surfaces abutting the ion exchange membrane when used in a membrane electrode assembly. At least some of the fluid channels are interconnected to enable flow of fluid therebetween.

Abstract: An individually operable and portable perineal device for cleaning and medicating the rectal and vaginal areas of the human body. The device is releasably mounted on a standard bathroom water faucet by means of a two-way water outlet valve converter attachment having an outlet into the sink and an alternate outlet into plastic tubing. The tubing directs the flow of water into either a catheter designed for cleaning and medicating the rectal cavity or into a catheter for cleaning and medicating the vaginal cavity. The device is operable manually by an individual user while seated on a toilet without the assistance of another person. The device ia packageable in a small package or traveling kit and can easily cleaned in a bathroom sink after use.

Abstract: A membrane electrode assembly is provided comprising a pair of electrodes and an ion exchange membrane positioned between the electrodes, at least one of the electrodes being formed of a sheet of a compressed mass of expanded graphite particles having a plurality of transverse fluid channels passing through the sheet between first and second opposed surfaces of the sheet, one of opposed surfaces abutting said ion exchange membrane, said transverse fluid channels being formed by mechanically impacting an opposed surface of the sheet to displace graphite within the sheet at predetermined locations.

Abstract: Plugs of pitch and intercalated graphite flakes that exfoliate when heated for graphite electrode joint assemblies. The plug may be inserted into the joint area of a graphite electrode assembly prior to assembly in the electrode column of an electrothermal furnace. Upon heating, the pitch melts and the treated flake exfoliates, forcing the pitch into the idle flank and void areas of the joint socket, increasing mechanical resistance, decreasing electrical and thermal resistance, and increasing joint locking mechanical strength. Also disclosed are composites comprising pitch and intercalated graphite flakes.

Abstract: An individually operable and portable perineal device for cleaning and medicating the rectal and vaginal areas of the human body. The device is releasably mounted on a standard bathroom water faucet by means of a two-way water outlet valve converter attachment having an outlet into the sink and an alternate outlet into plastic tubing. The tubing directs the flow of water into either a catheter designed for cleaning and medicating the the rectal cavity or into a catheter for cleaning and medicating the vaginal cavity. The device is operable manually by an individual user while seated on a toilet without the assistance of another person. The device ia packageable in a small package or travelling kit and can easily cleaned in a bathroom sink after use.

Abstract: Fluid permeable graphite article in the form of a glassy carbon coated perforated flexible graphite sheet useful as an electrode and electrically conductive backing material in flow-through type electrical capacitors.

Abstract: Fluid permeable graphite article in the form of a perforated flexible graphite sheet having increased electrical and thermal conductivity transverse to the surfaces of the sheet.

Abstract: Formable mixture of flexible graphite sheet particles having embedded ceramic fibers extending into the particles from the particle surfaces to increase the permeability of the sheet to resin.

Abstract: A flexible graphite sheet exhibiting enhanced isotropy is provided. In addition, an apparatus, system and method for continuously producing a resin-impregnated flexible graphite sheet is also provided.

Abstract: A graphite article useful in producing a membrane electrode assembly comprising a pair of electrodes and an ion exchange membrane positioned between the electrodes is presented. At least one of the electrodes is formed of a sheet of a compressed mass of expanded graphite particles having a plurality of transverse fluid channels passing through the sheet between first and second opposed surfaces of the sheet, one of opposed surfaces abutting the ion exchange membrane when used in a membrane electrode assembly. At least some of the fluid channels are interconnected to enable flow of fluid therebetween.