Abstract: Olefins are epoxidized by hydrogen peroxide in the presence of a crystalline titanium silicalite zeolite catalyst having a relatively high titanium content. High yields of epoxides with minimal non-selective loss of either hydrogen peroxide or olefin are realized.

Abstract: Disclosed is an improved process for the epoxidation of ethylene, wherein ethylene is reacted with oxygen in a mol ratio of about one, in the presence of a silver metal catalyst and a halide gas phase inhibitor, at a pressure of about 200 to 300 psig, said improvements comprising: introducing into the reaction zone a feed gas mixture comprising:30 to 90 mol % ethylene,0 to 55 mol % methane,0 to 15 mol % one or more inert, non-hydrocarbon gases or mixtures thereof,0 to 10 mol % carbon dioxide,2 to 10 mol % oxygen,1 to 50 ppm organic halide gas phase inhibitor, and maintaining the temperature in the reaction zone between 180.degree. and 350.degree. C.

Abstract: A process for preparing 1,1,1-trifluoro-2,2-dichloroethane by hydrofluorination, in the gas phase, of perchloroethylene in the presence of a catalyst comprising chrome oxides supported on AlF.sub.3 in the gamma and/or beta form.

Abstract: A method for preparing .beta.-phenylglycidic-(2R, 3R) acid optionally in the form of salt or ester by precipitation of the salt of the .beta.-phenylglycidic-(2R,3R) acid with (+)-.alpha.-methylbenzylamine-(R) in a solution of a mixture of salts of cis and trans .beta.-phenylglycidic acids with (+)-.alpha.-methylbenzylamine(R)- and the use of the resulting product for preparing taxol and its analogs.

Abstract: The light alcohol component of exhaust gases from such commercial operations as paint spraying booths and printing presses is found to be selectively adsorbed, even under high relative humidity conditions, to a surprisingly high degree using bonded high-silica zeolite agglomerates which have been calcined only once to remove the organic templating agent present in the as-synthesized form of the zeolite. Under certain conditions of alcohol concentration and relative humidity, the capacity of the once-calcined zeolite for alcohol adsorption is nearly twice as great as the same zeolite which has been calcined more than once at temperatures high enough to decompose and remove the organic moieties.

Abstract: Tertiary butyl alcohol contaminated with residual amounts of peroxide contaminants such as tertiary butyl hydroperoxide, ditertiary butyl peroxide, allyl tertiary butyl peroxide, etc., (which may be prepared, for example, by catalytically reacting propylene with tertiary butyl hydroperoxide to form propylene oxide and tertiary butyl alcohol) can be effectively catalytically treated under mild conversion conditions including a temperature of about 100.degree. to about 300.degree. C. with a catalyst comprising ferrous oxide to substantially completely decompose the peroxide contaminants to thereby provide a treated tertiary butyl alcohol product substantially free from contaminating quantities of such peroxides.

Abstract: A process for the oligomerization of hexafluoropropene comprises contacting hexafluoropropene with a catalyst or a mixture of catalysts selected from the group consisting of the cyanide, cyanate, and thiocyanate salts of alkali metals, quaternary ammonium, and quaternary phosphonium, in the presence of polar, aprotic solvent, e.g., acetonitrile. The process of the invention is especially useful for selectively preparing hexafluoropropene dimers, e.g., perfluoro-2-methyl-2-pentene and perfluoro-2-methyl-3-pentene, in good yield by the proper choice of solvent and catalyst.

Abstract: An optically active epoxycyclohexane derivative represented by the general formula: ##STR1## wherein R represents a 4-oxycarbonyl-1-hydroxy-3-methyl-3(Z)-buten-1-yl or 4-hydroxycarbonyl-3-methyl-1(E),3(Z)-butadien-1-yl group; and R.sup.1 and R.sup.2 each represent a lower alkoxy group or together form a 1,3-dioxolane ring together with the carbon atom to which they are bonded,and an enantiometer thereof.An optically active epoxycyclohexanone derivative represented by the general formula: ##STR2## wherein R.sup.3 represents a hydrogen atom or a lower alkyl, allyl, aralkyl or aryl group,and an enantiomer thereof.Further, the process for preparing these compounds, is also disclosed.

Abstract: A process is disclosed wherein a telomer having the formula BrCH.sub.2 CH.sub.2 (CF.sub.2 CFX).sub.n CH.sub.2 CH.sub.2 Br is prepared by reacting a telogen of the formula Br(CF.sub.2 CFX).sub.n CH.sub.2 CH.sub.2 Br with ethylene in the presence of an organic free-radical generator, wherein X is fluorine or a trifluoromethyl radical and n is an integer having a value of 1-5. It has been found that, when at least 0.05 mole of said free-radical generator is used for each mole of said telogen, the conversion of the telogen to the telomer is surprisingly increased.

Abstract: The present invention is optically active epoxides and its production characterized in that the process comprises reacting alkenyl ethylene glycols with 0.5 to 2.0 equivalents of a titanium-tetraalkoxyde, a peroxide and an L-(+)- or D-(-)-dialkyl tartrate at a temperature of -78.degree. to 50.degree. C. to asymmetrically oxidize the alkenyl ethylene glycols. The production of the present invention is an excellent method for producing chiral epoxides in which steric configuration of three asymmetric points can be perfectly controlled, the reaction is performed by mild conditions and the chemical yield and the optical yield are extremely high. The optically active epoxides which can be efficiently produced by the production of the present invention are useful as stating materials of several kinds of compounds.

Abstract: Process for oxidizing organic compounds with hydrogen peroxide in the presence of titanium-silicalite and of a water-alcohol solvent which, after the preliminary separation of the oxidation product and of the water formed during the reaction, is used again in order to extract hydrogen peroxide produced in a redox process with alkyl-anthraquinone and is fed again to the oxidation reaction.

Abstract: Organic sulfonate derivatives of optically active epoxy alcohols such as (R)- or (S)- glycidol are conveniently prepared from aqueous solutions of the epoxy alcohols.

Abstract: Compounds represented by the formulae: ##STR1## wherein: (a) each R in the compound is independently 1-phenylethyl, 2-phenylethyl, 2-phenylpropyl, or 1-methyl-1-phenylethyl;(b) each R' in the compound is independently alkyl containing from 6 to 18 carbon atoms;(c) the average value of a is in the range of from 0 to 1;(d) the value of i is an integer in the range of from 0 to about 200;(e) the value of j is an integer in the range of from about 2 to about 20;(f) the value of k is an integer in the range of from about 2 to about 60;(g) the ratio k/j is in the range of from 1 to about 10;(h) the sum of the values of i, j, k, and m is in the range of from about 10 to about 280; and(i) the value of m is an integer such that m/(j+k+m) is in the range of from 0 to about 0.15.provide satisfactory scratch and mar resistance to many coatings and are bloom-resistant. The low bloom markedly improves paintability of the coatings. Moreover, the silicone-based compounds have high refractive indices.

Abstract: A process for purifying propylene oxide containing an unacceptable quantity of a poly(propylene oxide) polymer contaminant having a molecular weight of at least about 50,000, comprising the step of filtering propylene oxide containing such polymer contaminant through one or more membranes to provide a propylene oxide product fraction having an acceptable quantity of poly(propylene oxide) polymer contaminant therein and a second fraction which is more highly concentrated in such polymer contaminant.

Abstract: A process for the production of a glycidyl ether of an alcohol, comprising reacting an alcohol with epichlorohydrin, in substantially the stoichiometric proportions required to produce the 1:1 adduct, in the presence, as catalyst, of a salt of perchloric acid or trifluoromethane sulphonic acid with a metal of Group IIIA of the Periodic Table of Elements (according to the IUPAC 1970 convention); and then dehydrochlorinating the product so obtained.

Abstract: A continuous horizontal reactor system and process for employing such a system. In one embodiment, a reactor system having a cylindrical multi-compartment vessel, the compartments intercommunicating via a common overhead space or separated spaces from which vapor with reaction product or by-products may be removed, and from which liquid effluent with reaction products or by-products may be removed and reactants and catalyst flowable into each compartment and agitators in each compartment. Such a reactor system for producing liquid epoxy resins. Processes using such a reactor to produce reaction products, e.g. liquid epoxy resins.

Abstract: An optically active pentane compound of the general formula (I): ##STR1## wherein R.sub.1 represents a lower alkyl group having 1 to 4 carbon atoms, R.sub.2 represents a lower alkoxycarbonyl group having an alkoxy moiety of 1 to 4 carbon atoms, or a straight-chain or branched alkyl group having 1 to 7 carbon atoms which is unsubstituted or substituted with a hydroxy or protected hydroxy group, A represents a halogen atom, hydroxy, protected hydroxy, or ethynyl group, or a group of the formula ##STR2## B represents a hydrogen atom, hydroxy, protected hydroxy or acyloxy group, D represents a hydrogen atom, or A and B together can form an acetal or epoxy group, A and D together can form an ethylidene group, and B and D together can form a carbon-carbon direct bond, and the chiral central carbon atoms marked with symbols *, # and .thrfore.

Abstract: A method for preparing tertiary butyl alcohol wherein a solution of a tertiary butyl hydroperoxide feedstock comprising a solution of tertiary butyl hydroperoxide in tertiary butyl alcohol is charged to a hydroperoxide decomposition reaction zone containing a catalytically effective amount of a hydroperoxide decomposition catalyst consisting essentially of a mixture of a soluble cycloalkenyl iron compound with a soluble ruthenium compound, and is brought into contact with the catalyst in liquid phase with agitation under hydroperoxide decomposition reaction conditions to convert the tertiary butyl hydroperoxide to decomposition products, principally tertiary butyl alcohol.

Abstract: Motor-fuel tertiary butyl alcohol contaminated with residual amounts of tertiary butyl hydroperoxide, ditertiary butyl peroxide and allyl tertiary butyl peroxide (which is prepared, for example, by reacting propylene with tertiary butyl hydroperoxide to form propylene oxide and a motor fuel grade tertiary butyl alcohol reaction product) can be effectively catalytically treated under mild conversion conditions including a temperature of about 160.degree. to 200.degree. C. with a catalyst consisting essentially of vitrified silica to substantially completely decompose the peroxide contaminants to thereby provide a treated tertiary butyl alcohol product substantially free from contaminating quantities of such peroxides.

Abstract: Lower alkanols are prepared from corresponding alkanes by reacting the lower alkane with a metal halide to produce a lower alkyl halide which, in turn, is reacted with magnesium oxide to form the corresponding lower alkanol. A continuous fluidized-bed system is provided for conducting the necessary reactions.