Abstract: Alkylation of metaxylene with isobutylene using a solid active clay catalyst produces 5-tert-butyl-metaxylene with high isomer selectivity with respect to 4-tert-butyl-metaxylene. The process is controlled to extend catalyst life and significantly reduce environmentally unfriendly waste.

Abstract: Alkylation of metaxylene with isobutylene using a solid active clay catalyst produces 5-tert-butyl-metaxylene with high isomer selectivity with respect to 4-tert-butyl-metaxylene. The process is controlled to extend catalyst life and significantly reduce environmentally unfriendly waste.

Abstract: A process for operating a combustion burner employing a combustion mixture of a carbonaceous fuel, hydrogen and a molecular oxygen-containing gas and at least one solid combustion catalyst is disclosed.

Abstract: Processes using heterogeneous adsorbents are disclosed for purification of olefins such as are typically produced by thermal cracking of suitable hydrocarbon feedstocks, by providing a impure mixture comprising at least one olefin of from 2 to about 8 carbon atoms, acetylenic impurities having the same or similar carbon content in an amount of up to about 1 percent by volume base upon the total amount of olefin present and optionally saturated hydrocarbon gases; admixing a source of dihydrogen with the impure mixture to form a feedstream comprising a sub-stoichiometric amount of dihydrogen based upon conversion of the total amount of acetylenic impurities present to their olefinic analogs; and passing the feedstream through a particulate bed of adsorbent comprising predominantly a support material on which is dispersed at least one metallic element in the zero valent state, to effect, under conditions suitable for adsorption within the bed, selective adsorption and/or complexing of the contained acetylenic co

Abstract: Processes using heterogeneous adsorbents are disclosed for purification of aromatic monomers such as are typically produced by dehydrogenation of suitable benzenoid hydrocarbons, by passing a steam of ethylenically unsaturated aromatic monomer and impurities comprising at least one substituted aromatic compound having the same or similar carbon content in which a substituent moiety is acetylenically unsaturated, through a particulate bed of predominantly a support material having high surface area on which is dispersed at least one metallic element. Selective adsorption and/or complexing of the contained impurities with the adsorbent is continued until levels of a selected impurity in the effluent stream increase to a predetermined level. Thereafter the resulting bed of adsorbent is regenerated in the presence of a reducing gas containing dihydrogen to effect release of the contained impurities from the adsorbent.

Abstract: Processes using heterogeneous adsorbents are disclosed for purification of olefins such as are typically produced by thermal cracking of suitable hydrocarbon feedstocks, by providing a impure mixture comprising at least one olefin of from 2 to about 8 carbon atoms, acetylenic impurities having the same or similar carbon content in an amount of up to about 1 percent by volume base upon the total amount of olefin present and optionally saturated hydrocarbon gases; admixing a source of dihydrogen with the impure mixture to form a feedstream comprising a sub-stoichiometric amount of dihydrogen based upon conversion of the total amount of acetylenic impurities present to their olefinic analogs; and passing the feedstream through a particulate bed of adsorbent comprising predominantly a support material on which is dispersed at least one metallic element in the zero valent state, to effect, under conditions suitable for adsorption within the bed, selective adsorption and/or complexing of the contained acetylenic co

Abstract: Processes using heterogeneous adsorbents are disclosed for purification of olefins to obtain feedstocks suitable for formation of olefin polymers using a metallocene catalyst system. An olefinic process stream, containing small amounts of acetylenic impurities, carbon oxides and/or other organic components which are, typically, impurities in cracked gas, passes through at least two zones containing heterogeneous adsorbents. Adsorption is carried out in an essentially dihydrogen-free atmosphere within the initial zone containing a bed of regenerated adsorbent which has retained a substantial amount of carbon monoxide, to effect selective adsorption of the contained acetylenic contaminants with the adsorbent.

Abstract: A process for the preparation of an addition product of a linear telechelic difunctional unsaturated polymer containing terminal functional reactive groups other than vinyl groups, involves simultaneously reacting at least one cyclic olefin of from about 4 to 30 carbon atoms, at least one difunctional acyclic olefin of up to about 30 carbon atoms, and at least one reactant YZ in the presence of at least one olefin metathesis catalyst to prepare an addition product of a linear difunctional unsaturated polymer, wherein YZ is capable of adding to a carbon--carbon double bond under ROMP reaction conditions.

Abstract: A process for the preparation of an addition product of a linear telechelic difunctional unsaturated polymer containing terminal functional reactive groups other than vinyl groups, involves simultaneously reacting at least one cyclic olefin of from about 4 to 30 carbon atoms, at least one difunctional acyclic olefin of up to about 30 carbon atoms, and at least one reactant YZ in the presence of at least one olefin metathesis catalyst to prepare an addition product of a linear difunctional unsaturated polymer, wherein YZ is capable of adding to a carbon--carbon double bond under ROMP reaction conditions.

Abstract: The present invention is a cyclization process utilizing the catalyst copper aluminum borate which process comprises the step of contacting (1) a compound having a fragment in which a carbon-containing chain of at least three atoms in sequence is bonded at one end thereof to a nitrogen, oxygen, or sulfur atom, and at the opposite end to a carbon, nitrogen, oxygen, or sulfur atom, where the latter are bonded to at least one hydrogen atom; with (2) a catalyst comprising at least one member selected from the group consisting of copper aluminum borate and zero valent copper on a support comprising aluminum borate, under conditions sufficient to effect ring closure between the ends of the fragment to obtain a compound comprising a heterocyclic ring.

Abstract: The preparation, structure, and properties of solid inorganic materials containing aluminum, boron, oxygen and at least one Group VIII metallo element, selected from the group consisting of cobalt and nickel is described. Also described is the use of such materials in catalytic compositions for the conversion of organic compounds. In particular, the new materials having the general formula:(x)(M.sub.m :M'.sub.n)O.(y)Al.sub.2 O.sub.3.(z)B.sub.2 O.sub.

Abstract: Conversion of alcohol to organic compounds which comprises contacting the alcohol with a heterogeneous catalyst composition comprising crystallineCu.sub.2-X Cr.sub.y Al.sub.6-y B.sub.4 O.sub.17 M.sub.m M'.sub.nwhere M is a divalent metal, M' is a monovalent metal, m is a number in a range from 0 to 0.8, n is a number in a range from 0 to 1.6, X is a number in a range from 0 to 10 0.8 and is equal to the sum of m and n/2, and y is a number in a range from 0.01 to 3, having a characteristic X-ray diffraction pattern.

Abstract: A dehydrocyclization process is described for producing polynuclear organic compounds by contacting a starting organic material having at least one ring moiety comprising at least two adjacent ring carbon atoms each bonded to an independently selected monovalent radical comprising at most about eight carbon atoms provided at least one of the monovalent hydrocarbon radicals comprises more than one carbon atom with a crystalline copper aluminum borate catalyst. The preferred catalyst comprises at least one member selected from the group consisting of (a) crystalline copper aluminum borate and (b) zero valent copper on a support comprising at least one member selected from the group consisting of Al.sub.4 B.sub.2 O.sub.9 and the crystalline copper aluminum borate, the zero valent copper on the support being formed by the reduction of the crystalline copper aluminum borate.

Abstract: The preparation, structure, and properties of solid inorganic materials containing at least copper, chromium, aluminum, boron and oxygen which new materials have a characteristic X-ray diffraction pattern are described. Also described is the use of such materials in catalytic compositions for the conversion of organic compounds. In particular, new compositions comprising material having a structureCu.sub.2-x Cr.sub.y Al.sub.6-y B.sub.4 O.sub.17 M.sub.m M'.sub.nwhere M is a divalent metal, M' is a monovalent metal, m is a number in a range from 0 to 0.8, n is a number in a range from 0 to 1.6, X is a number in a range from 0 to 0.8 and is equal to the sum of m and n/2, and y is a number in a range from 0.01 to 3, having a characteristic X-ray diffraction pattern are described as well as the use of such materials in various catalyzed processes including dehydrogenation of hydrocarbons and oxygen-containing hydrocarbons.

Abstract: The invention relates to a light metal oxide-based amorphous electrical conductor which comprises an amorphous ternary composition consisting of alumina, boria, and an oxide of a light metal selected from Group IA and IIA of the Periodic Table of Elements. Amorphous conductors of the present invention can be produced by forming an aqueous composition comprising a source of light metal ions, a source of alumina and a source of boria to form a homogeneous gel, drying the gel to form a superifically dry solid, and calcining the dry solid at a sufficiently high temperature to form an amorphous ternary composition as described above. The conductor is used as an element of a moisture and/or a high temperature sensor.

Abstract: The preparation, structure, and properties of solid inorganic materials containing aluminum, boron, oxygen and at least one metallo element selected from Group IA of the Periodic Table is described. Also described is the use of such materials in catalytic compositions for the conversion of organic compounds. In particular, the new materials having the general formula:(x) M.sub.2 O.(y) Al.sub.2 O.sub.3.(z) B.sub.2 O.sub.3where M is at least one metallo element selected from Group IA of the Periodic Table having atomic number from 11 through 55, inclusive, and x, y and z are numbers representing molar amounts of the oxides are described as well as the use of such materials in various catalyzed processes including synthesis of methacrylic acid.

Abstract: A process for the halogen-assisted conversion of lower alkanes to higher molecular weight hydrocarbons is provided. A first reaction mixture including lower alkanes, a hydrogen halide and an oxygen-containing gas are contacted with a catalytic composition of crystalline copper aluminum borate at appropriate reaction conditions to form an intermediate composition including halogenated alkanes. The halogenated alkanes are subsequently contacted with a catalytic composition of a pentasil molecular sieve material under appropriate reaction conditions to form a product mixture including hydrocarbons having molecular weights greater than the lower alkanes.

Abstract: A method for halogenating hydrocarbons wherein a reaction mixture including a hydrocarbon-containing feed, a hydrogen halide and an oxygen-containing gas is contacted at appropriate reaction conditions with a catalyst of copper aluminum borate to form halogenated hydrocarbons.

Abstract: The preparation, structure, and properties of solid inorganic materials containing aluminum, boron, oxygen and at least one Group VIII metallo element, selected from the group consisting of cobalt and nickel is described. Also described in the use of such materials in catalytic compositions for the conversion of organic compounds. In particular, the new materials having the general formula:(x) (M.sub.m :M'.sub.n)O.(y)Al.sub.2 O.sub.3.(z)B.sub.2 O.sub.

Abstract: The preparation, structure, and properties of solid inorganic materials containing at least one rare earth element, aluminum, boron and oxygen are described. Also described is the use of such materials in catalytic compositions for the conversion of organic compounds. In particular, new materials comprising crystalline LnAl.sub.1.67+0.67X (B.sub.4 O.sub.10)O.sub.X where Ln is at least one Group IIIB element ion having effective ionic radii less than about 0.98 Angstroms at valence 3+ and coordination number VI, and X is a number ranging from 0 to 1, having a characteristic X-ray diffraction pattern are described as well as the use of such materials in various catalyzed processes including oxidative dehydrogenation of hydrocarbons and oxygen-containing hydrocarbons, dehydrogenation to functionalize alkylaromatic compounds, and ammoxidation of alkylaromatic compounds.