Abstract: A silver catalyst for ethylene oxidation to ethylene oxide is provided containing a promoter combination consisting of an alkali metal component, a sulfur component, a fluorine component, and a pnictogen component from the group phosphorus, bismuth and antimony; the catalyst is essentially free of rhenium and transition metal components.

Abstract: Propylene is oxidized with molecular oxygen in the liquid phase to form products including propylene oxide, propylene glycol, propylene glycol esters, allyl alcohol, acrolein and acetal, the acrolein is hydrogenated to allyl alcohol, the acetol is hydrogenated to propylene glycol, the propylene glycol esters are hydrolyzed to propylene glycol, and propylene oxide, propylene glycol and allyl alcohol are recovered as products.

Abstract: The invention provides an improved method for the production of vanadium/phosphorous mixed oxide catalysts, using an organic solvent system and an additive such as dimethyl sulfoxide, the catalyst having special utility in the production of maleic anhydride.

Abstract: Ethylbenzene hydroperoxide suitable for epoxidizing an olefin using a heterogeneous titanium catalyst is provided by the sequence of:a) flashing acids containing ethylbenzene peroxidase to reduce the temperature thereof to 170.degree. F. or lower,b) contacting the flash bottoms with aqueous base and separating a base contaminated deacidified hydroperoxide stream from an organics contaminated aqueous stream,c) removing organics from the organics contaminated aqueous stream by extraction with ethylbenzene,d) separating base from the base contaminated deacidified hydroperoxide stream by water extraction, ande) stripping water from deacidified water extracted hydroperoxide stream.

Abstract: A process is provided for the production of a gasoline blending fraction rich in isooctane by the dimerization of isobutylene using tertiary butyl alcohol modifier and isoalkane diluent; advantageously the isobutylene is derived from the dehydration of tertiary butyl alcohol and the isoalkane used as diluent in the dimerization is the product formed by hydrogenation of the oligomerization product.

Abstract: Economics of heat are achieved in a process for batch fatty acid esterification of alkoxylated polyol by transferring the reaction mixture to a holding vessel and subsequently heating fresh feed to the batch reaction by indirect heat exchange with the transferred reaction mixture.

Abstract: An olefin such as isobutylene is reacted with a carboxylic acid to produce the ester in the presence of an alkanol modifying agent effective to suppress olefin polymerization, at least part of the modifying agent being formed in situ by reaction of the olefin and water.

Abstract: A silver catalyst for ethylene oxidation to ethylene oxide is provided containing a promoter combination consisting of an alkali metal component, a sulfur component, a germanium or tin component, and a fluorine component the catalyst being essentially free of rhenium and transition metal compounds.

Abstract: An apparatus for the molecular oxygen oxidation of a secondary alcohol such as isopropanol to hydrogen peroxide is provided.

Abstract: The invention relates to a lab-top work station which is designed for use in the manual application of liquid to a slide or microwell plate and consists of a slide holder, a bridge for support of manual liquid dispensers at a predetermined location with respect to the slide holder, and a manual incremental advance mechanism for manually moving the slide holder a predetermined distance.

Abstract: A reactor and process is for the production of oxirane compounds by reaction of an olefin such as propylene with an organic hydroperoxide using a solid contact catalyst, characterized by the following features:(1) the reactor is divided into a series of separate zones, each zone containing a bed of solid epoxidation catalyst;(2) conditions are maintained so as to provide the liquid phase without substantial vapor formation throughout the entire reactor;(3) cold reactor feed is provided which is preheated to reaction temperature by separate indirect heat exchange with reaction liquid from various of the separate reactor zones;(4) reaction liquid from the last of the series of reaction zones is reduced in pressure to form a gas-liquid mixture at a lower temperature, and this gas liquid mixture is heated by indirect heat exchange with the reaction liquid from at least one of the separate reactor zones.

Abstract: A silver catalyst for ethylene oxidation to ethylene oxide is provided containing a promoter combination consisting of an alkali metal component, a sulfur component, and a fluorine component, the catalyst being essentially free of rhenium and transition metal components.

Abstract: An aqueous epoxidation process stream containing molybdenum and sodium values is incinerated and an aqueous solution containing molybdenum and sodium is recovered, acidified and reacted with a calcium compound without first adding base to form solid CaMoO.sub.4 which is separated.

Abstract: Close boiling hydrocarbon impurities are separated from acetone by extractive distillation using a C.sub.9 -C.sub.14 alkane and/or a C.sub.8 -C.sub.12 aromatic hydrocarbon extractive distillation solvent.

Abstract: Oxirane compounds are produced by molecular oxygen oxidation of an olefin in the presence of a nitrogen oxide catalyst.

Abstract: A reactor and process is for the production of oxirane compounds by reaction of an olefin such as propylene with an organic hydroperoxide using a solid contact catalyst, characterized by the following features:(1) the reactor is divided into a series of separate zones, each zone containing a bed of solid epoxidation catalyst;(2) about 25-75% of the heat of reaction is removed by preheating cold reactor feed by direct contact with a heated recycle stream from the reactor; and(3) about 25-75% of the heat of reaction is accounted for by a reaction mixture temperature rise of 20.degree.-100.degree. F. and by vaporization of 15-40% of the net reactor product.

Abstract: A rhenium free silver catalyst for ethylene oxidation to ethylene oxide is provided containing a promoter combination consisting of an alkali metal component a niobium or tantalum component, and a sulfur component.

Abstract: An aqueous epoxidation process stream containing molybdenum and sodium values and organics is treated for organics removal as by incineration and an aqueous solution containing molybdenum and sodium is recovered, cooled, acidified and contacted with activated carbon and an aqueous stream reduced in molybdenum is recovered, further molybdenum reduction can be achieved by treatment with basic ion exchange resin.

Abstract: Polyethers of polyhydric compounds are prepared by the liquid phase reaction of polyhydric compound and the reaction being carried out with separate liquid phases comprised of a polar polyhydric compound phase and an organic polyether containing phase.

Abstract: There is provided a cement composition having improved fluidity comprising cement and an addition copolymer of (a) an adduct of a polyether polyol and an ethylenically unsaturated isocyanate with (b) an ethylenically unsaturated carboxylic acid.