Abstract:
A process is disclosed for converting a feedstock containing ethylene to produce heavier hydrocarbons in the gasoline or distillate boiling range including the steps of contacting the olefins feedstock with a first siliceous crystalline molecular sieve at an elevated temperature and relatively low pressure under conditions which maximize the conversion of ethylene to C.sub.3 -C.sub.4 olefins and C.sub.5 + hydrocarbons, separating C.sub.3 -C.sub.4 olefins from the C.sub.5 + hydrocarbons, and contacting the separated C.sub.3 -C.sub.4 olefins with a second siliceous crystalline molecular sieve at moderate temperatures under conditions favorable for conversion of the C.sub.3 -C.sub.4 olefins to heavier hydrocarbons in the gasoline or distillate boiling range.
Abstract:
Conductive materials are formed by implanting high energy ions (30 keV to 300 keV) into rigid backboned polymers, such as poly (p-phenylene sulfide); conductivities on the order of 10.sup.-3 (ohm-cm).sup.-1 are demonstrated and the materials remain stable over periods as long as a year.
Abstract:
A tertiary amine is used to catalize the stereospecific ring-opening of chiral glycidol with o-methoxyphenol to afford high yields of enantiomerically enriched guaifenesin. The optical purity of the product may be even further enhanced by recrystallization.
Abstract:
A method for converting normally gaseous olefins (esp., ethylene) to normally liquid hydrocarbons wherein the olefin feed is contacted with a siliceous molecular sieve at elevated temperatures and short olefin contact times under high severity conditions favorable for substantial conversion of olefins with maximized liquids productivity. ZSM-5 type zeolites and crystalline borosilicate molecular sieves are particularly preferred catalysts.
Abstract:
Low calorie fat components which have a low solids content but a reduced tendency to exhibit the gastrointestinal side effects typically associated with liquid fat substitutes are obtainable by blending esterified propoxylated glycerin materials having a relatively high solids content at 21.degree. C. with certain liquefying agents. The liquefying agents are partially digestible triacylglycerols characterized by the incorporation of both short chain carboxylic acid residues and long chain saturated fatty acid residues. The low calorie fat components have improved organoleptic qualities as compared to the esterified propoxylated glycerin materials alone.
Abstract:
Esterified propoxylated glycerine (“EPG”) may replace up to 100% of the partially hydrogenated vegetable oil content of an edible shortening product to produce a stable emulsion containing less trans-fatty acid content. A variety of shortenings may be produced, including those used for baking, frying, and as pan coatings (release agents). A butter-like product may be produced which exhibits spreading characteristics very similar to real butter.
Abstract:
Administration of alkoxylated acyl glycerine (AAG) containing lower carboxylic acid acyl moieties to mammalian subjects results in increase of lower carboxylate concentration, particularly in the colon, and may be used to treat such disorders as simple colitis, ulcerative colitis, divertive colitis, colorectal cancer, and other diseases of the gastrointestinal tract where lower carboxylates are implicated. The AAG encourage patient compliance due to substantially no odor, even when butyric acid acyl groups are employed.
Abstract:
Methane is converted into higher hydrocarbons by a process wherein a gas comprising methane and molecular oxygen is contacted at elevated temperatures with a molten salt mixture containing at least one reducible metal oxide.
Abstract:
Low calorie fat components which have a low solids content but a reduced tendency to exhibit the gastrointestinal side effects typically associated with liquid fat substitutes are obtainable by blending esterified propoxylated glycerin materials having a relatively high solids content at 21.degree. C. with certain liquefying agents. The liquefying agents are characterized by their compatibility with the esterified propoxylated glycerin and their partial digestibility. The low calorie fat components have improved organoleptic qualities as compared to the esterified propoxylated glycerin materials alone.
Abstract:
A process for the oxidative conversion of methane to higher hydrocarbons is provided wherein a mixture of methane and gaseous oxidant is contacting at reactive conditions with a reducible metal oxide containing solid contact agent, the improvement comprising periodically discontinuing methane feed to the solid contact agent so that the solid agent is maintained in a more active and highly oxidized state.