Abstract: This invention provides an attrition resistant catalyst composition and method for producing such composition. The catalyst is comprised of an acidic zeolite, rho or chabazite, and a particulate binder, kaolin, bentonite, alpha-alumina, or titania, which can be optionally modified by treatment with a compound containing Si, Al, P or B.This invention further provides a process for producing methylamines, preferably dimethylamine, comprising reacting methanol and/or dimethyl ether and ammonia in the presence of a catalytic amount of an attrition resistant catalyst of the invention.

Abstract: New antineoplastic substances have been isolated, structurally elucidated and synthesized having a general structural formula of: ##STR1## wherein: R.sub.1 is OH or OCH.sub.3 ;R.sub.2 is H or OCH.sub.3 ; or R.sub.1 R.sub.2 is --OCH.sub.2 O--;R.sub.3 is H or OH; andR.sub.4 is OH or OCH.sub.3.These substances have been denominated "combretastatin A-1, -A-2, -A-3, -B-1, -B-2, -B-3 and -B-4". preparation containing the substances and methods of treating a host inflicted with a neoplastic growth with the preparation is described.

Abstract: The present invention is a cyclic process for the preparation of ethyl tert.-alkyl ethers by the reaction of an alcohol, ethanol, with an iso-olefin such as isobutylene or isoamylene wherein an effluent from the reaction zone is separated in a distillation column to provide an overhead effluent stream and a bottoms effluent stream comprising ethyl tert.-alkyl ether and unreacted ethanol. The unreacted ethanol is recovered in an adsorption zone comprising a selective adsorbent selected from the group consisting of zeolite 13X, sodium zeolite Y, alumina, silicalite and mixtures thereof. The invention is useful in recovering unreacted ethanol from the bottoms effluent stream and returning the unreacted ethanol to the reaction zone. The invention reduces the cost of this separation which is complicated by the formation of an azeotrope between the unreacted alcohol and the ether.

Abstract: A process is directed to the removal of impurities such as sulfur compounds, oxygenates, and/or olefins from a light paraffin hydrocarbon feedstock such as a C.sub.4 -C.sub.6 fraction, which may be used subsequently in an isomerization process in an integrated complex for the production of ethers such as MTBE and TAME. The hydrocarbon feedstream is passed to a removal zone wherein the hydrocarbon feedstream is contacted with a selective solvent for the removal of the impurities comprising at least one of sulfur compounds, oxygenates and olefins to provide a rich solvent stream and a treated hydrocarbon stream. The rich solvent comprising the trace impurities is contacted with a stripping medium stream to regenerate the selective solvent in a stripping zone. The removal zone may be a liquid-liquid extraction zone or a gas absorption zone.

Abstract: A multistaged fixed catalyst bed process for the production of diisopropyl ether and isopropanol is disclosed comprising a fixed bed of serially connected stages containing zeolite Beta catalyst. A feedstream of propylene and water equivalents selected from the group consisting of water, isopropanol and diisopropyl ether is introduced into each stage at a rate sufficient to provide a mole ratio of water equivalents to propylene equivalents that increases in increments by stage from at least 0.1 in a first stage to at most 1.2 in a final stage. The feedstream is introduced at a temperature between 50.degree. and 450.degree. C., pressure between 700 and 24000 kPa, and weight hourly space velocity between 0.10 and 30, based on catalyst, whereby a single non-aqueous liquid phase is maintained in the fixed bed. An effluent product stream is recovered comprising diisopropyl ether, isopropanol and water from the final stage. Isopropanol is recycled to the first stage when the preferred product is diisopropyl ether.

Abstract: A process is disclosed for improving catalyst performance and yields in the manufacture of motor gasoline components. More particularly the process is directed to the removal of trace amounts of acetonitrile or acetone or propionitrile from a hydrocarbon feedstock such as a C.sub.4 -C.sub.6 product fraction from a fluid catalytic cracking unit, which may be used subsequently in an etherification process for the production of ethers such as MTBE and TAME. The hydrocarbon feedstock is passed to a water wash zone for the removal of the trace amounts of acetonitrile or acetone or propionitrile and the spent water comprising the nitriles is contacted with a nitrile-lean stream to regenerate the wash water. A portion of the spent water stream is withdrawn to reduce the nitrile level in the nitrile-lean water stream.

Abstract: Phenol is produced from a hydrocarbon feedstock using a process combination offering unexpected synergy. Benzene is produced from the hydrocarbon feedstock using a highly selective aromatization catalyst which provides substantial quantities of high-purity hydrogen. The hydrogen is converted to hydrogen peroxide, which in turn is used to convert the benzene to phenol in high yield.

Abstract: A copper oxide/zinc oxide/aluminum oxide catalyst which contains, per 100 parts of copper oxide, 40 to 130 parts zinc oxide, 2 to 50 parts aluminum oxide, and 1 to 4 parts soium oxide. It has a total BET surface area of 50 to 100 m.sup.2 /g, and 75% to 95% of the total surface area is made up by pores having radii of 9 to 1000 nm, and 5% to 25% of the total surface area is made up by pores having radii of less than 9 nm. The catalyst is useful for hydrogenation of various organic compounds.

Abstract: The invention relates to continuous production of 1,1,1-chlorodifluoroethane from 1,1,1-trichloroethane and hydrofluoric acid by reaction in liquid phase in the presence of at least one fluorination catalyst. According to the invention, the process is carried out under an absolute pressure of between 6 and 30 bars and at a temperature of between 50.degree. and 120.degree. C., the content of catalyst(s) in the reaction mixture, expressed as a percentage by weight of metal, being between 0.05 and 10% and the content of organohalogenated by-products not belonging to series 140 in the reaction mixture being controlled at a value below 40% by weight. This process makes it possible, at the same time, to obtain a high degree of conversion of hydrofluoric acid, to minimize the coproduction of 1,1,1-trifluoroethane and organohalogenated by-products and to facilitate the recovery of the hydrochloric acid formed.

Abstract: An improved process for producing hydrofluorocarbons and hydrochlorofluorocarbons by reacting anhydrous hydrogen fluoride in the vapor phase and in the presence of a fluorination catalyst with an admixture of perchloroethylene and a phenolic inhibitor. The phenolic component is effective to inhibit the formation of an oxidation product in the perchloroethylene while not substantially degrading the fluorination catalyst during the fluorination process. In another embodiment, substantially all of any oxidation inhibitor is removed from the perchloroethylene in-line prior to reacting the hydrogen fluoride with the perchloroethylene.

Abstract: A fluorination catalyst comprising indium, chromium, oxygen and fluorine as essential constituent elements thereof. The catalyst is prepared by fluorinating a catalyst precursor comprising indium and chromium elements by bringing it into contact with hydrogen fluoride or a fluorine-containing halogenated hydrocarbon at a temperature of 300.degree. to 500.degree. C. A halogenated hydrocarbon is fluorinated by bringing it into contact with hydrogen fluoride in a gaseous phase in the presence of the catalyst.

Abstract: A fluorinated saturated hydrocarbon represented by the formula (2): ##STR1## wherein R and R' represent a perfluoroalkyl group or both R and R' are bonded together to form a perfluoroalkylene group which is a part of a ring, is industrially advantageously produced with good operating characteristics by reacting a fluorinated unsaturated hydrocarbon represented by the formula (1):R --CF.dbd.CF-R' (1)wherein R and R' are as defined above, with hydrogen in the presence of a platinum catalyst.

Abstract: A process for preparing a hydrochlorofluorocarbon essentially free of olefinic impurities by selectively hydrogenating the olefinic impurities. The process may be controlled such that at least a portion of the hydrochlorofluorocarbon is converted into a fluorohydrocarbon.

Abstract: A method of chlorinating vinylidene chloride contained in a solution 1,1-dichloro-1-fluoroethane to provide a chlorinated compound having a boiling point different from the 1,1-dichloro-1-fluoroethane to permit separation therefrom, the method comprising providing a solution containing 1,1-dichloro-1-fluoroethane and vinylidene chloride; and contacting said solution with chlorine and an alumina catalyst to effect chlorination of said vinylidene chloride to produce a chlorinated compound having a boiling point different than said 1,1 dichloro-1-fluoroethane.

Abstract: The purpose of this invention is to describe a new process for the manufacture of monochloroethane and dichloroethanes which can be decomposed into ethylene (C.sub.2 H.sub.4) and chloroethene (C.sub.2 H.sub.3 Cl), respectively, and recovered as products. This new process uses ethane (C.sub.2 H.sub.6) and chlorinated ethenes or methanes as feedstocks. The distribution of the products may be adjusted so that either ethylene or chloroethene is the major product. The new process can also be used to produce propylene from propane, and butylene from butane.

Abstract: An electrophotographic photoconductor which is composed of an electroconductive support and a photoconductive layer formed thereon comprising a novel pyrene-ring-containing olefin compound having formula [I]: ##STR1## wherein R.sup.1 and R.sup.2 each represent hydrogen or an alkyl group which may have a substituent; Y is an aliphatic hydrocarbon group which may have a substituent, a cyclic hydrocarbon group which may have a substituent, or an aromatic group which may have a substituent; n is an integer of 0 or 1, and m is an integer of 1 to 3, provided that when n is 0, m is 1, R.sup.1 is hydrogen, and Y is an aromatic group with a substituent ##STR2## R.sup.2 and R.sup.3 each represent hydrogen, and Y and R.sup.1 may be bonded to form a ring, a method of synthesizing the pyrene-ring-containing olefin compound and an intermediate therefor are disclosed.

Abstract: The present invention relates to a process for the conversion of polymers and particularly for the conversion of plastic containers or other plastic wastes. The process requires a minimum number of steps for treating typical industrial plastic wastes. The process comprises placing the mixed polymers in contact with a solvent that dissolves part of the polymers and separates the other fractions. The solvent fraction is subjected to treatment for the recovery of lower molecular weight stream that can be utilized in refining operations or other chemical operations.

Abstract: The present invention relates to a catalyst for the selective hydrogenation of an unsaturated compound, based on a noble metal and/or a noble-metal oxide on an aluminum oxide support, and to a process for the preparation of the catalyst. The present invention further relates to a process for the selective hydrogenation of unsaturated compounds.

Abstract: A method for producing a cycloolefin, which comprises partially hydrogenating a monocyclic aromatic hydrocarbon in the presence of water and a ruthenium catalyst supported on silica modified by zirconium oxide.

Abstract: The present invention relates to a method for using a single distillation column to recover the reactants and products from the reaction of a cyclic diolefin and an olefin to produce an alkenyl bridged ring compound.

Abstract: A process is provided for catalytic conversion of feedstock comprising aromatic compounds to product comprising aromatic compounds which differs from said feedstock. The catalyst required in the process comprises a crystalline material having the structure of MCM-58. Said crystalline material may have been treated with one or more monomeric or polymeric siloxane compounds which decompose to oxide or non-oxide ceramic or solid-state carbon species.

Abstract: The invention concerns a process for the isomerisation of less substituted olefins to more substituted external olefins and/or internal olefins in the absence of diolefins, in the presence of a palladium based catalyst deposited on a support. Before loading it into the reactor, said catalyst is treated with at least one sulphur-containing compound which is dissolved in a solvent then activated in a neutral or reducing atmosphere between 20.degree. C. and 300.degree. C., 1 and 50 bars and with a VVH of 50 to 600 h.sup.-1. The catalyst, containing 0.05% to 10% by weight of sulphur, is brought into contact with the feedstock and hydrogen between 20.degree. C. and 200.degree. C., 1 and 50 bars, a VVH of 0.5 to 10 h.sup.-1 and a H.sub.2 /olefin molar ratio of 0.01 to 1.

Abstract: A novel alkylation catalyst is described which is used in processes for alkylating olefin hydrocarbons with isoparaffin hydrocarbons to produce high octane alkylate products suitable for use as blending components of gasoline motor fuel. The novel catalyst comprises a mixture of a hydrogen halide, a sulfone and water and has suitable corrosion properties which permit its utilization in alkylation process systems. The novel alkylation catalyst is utilized in a novel process for alkylating olefin hydrocarbons with isoparaffin hydrocarbons.

Abstract: A monochromatic light signal of a wavelength of between 400 and 1300 nanometers is simultaneously passed by a source 1, a beam splitter 2 and optical fibers 3, 3a to at least two points of a zone 9 for the separation of a mixture of isomers and aromatic hydrocarbons having from 8 to 10 carbons atoms. A polychromatic signal is recovered corresponding to the Raman effect between 400 and 3500 cm.sup.-1 by optical receiving fibers 5, 5a connected to sensors 4 at the locations of said points. The chemical composition of the mixture is determined from the Raman spectra obtained by a spectrometer 6. The analysis sequence is repeated, the profiles with respect to the concentration of the isomers in the mixture are reconstituted and by comparison with reference concentration profiles, action is taken on at least on operational variable 11, 12 of the separation process.

Abstract: A method for detecting and destroying various chlorinated hydrocarbons and unsaturated hydrocarbons in the environment using electrochemical techniques has been invented. By concentrating the chlorinated hydrocarbons or unsaturated hydrocarbons in a solvent by liquid-solid or liquid-liquid extraction, and then passing current through the solvent extractant containing the chlorinated hydrocarbons or unsaturated hydrocarbons electrochemically removes chlorine and oxidizes unsaturated hydrocarbons. The potential is measured to correlate to the concentration of the chlorinated hydrocarbon specie.

Abstract: System for and a method of fixing chlorofluorocarbons or other halogenated hydrocarbons, for example, CHF.sub.3 or CCl.sub.2 F.sub.2 recirculated and collected or discharged from a dry etching apparatus, so as to make the chlorofluorocarbon or halogenated hydrocarbon harmless against the earth's ozone layer. A gaseous hydrocarbon like ethane, ethylene or acetylene gas is mixed with a chlorofluorocarbon or other halogenated hydrocarbon gas in a reaction tube 61. The mixed gas is then excited to a plasma state for plasma copolymerization. A solid copolymer of the halogenated hydrocarbon and the hydrocarbon generated by the plasma copolymerization is deposited and accumulated onto the inner wall of the reaction tube 61 or on a fixation member 14.

Abstract: A process for treating a contaminated solid unacceptable for disposal in the environment is described whereby the contaminated solid is contacted in a bath of a molten paraffinic hydrocarbon for time sufficient to expel moisture and to coat the solid rendering the contaminant immobile, isolated and unleachable into the environmental system once the paraffin has solidified. An embodiment of this invention employs a zeolite to absorb liquid wastes expelled from the solid.

Abstract: A nude mouse model for human neoplastic disease having histologically intact human neoplastic tissue transplanted onto an organ of the mouse which corresponds to the human organ from which the tissue is obtained.

Abstract: An inbred corn line designated ZS0223, including plants of ZS0223 and pollen and seed of such plants. Also, a method of producing a corn plant by crossing ZS0223 either with itself or with another corn line and the first generation plants and seeds produced by such crosses.

Abstract: A novel soybean cultivar, designated 003394768, is disclosed. The invention relates to the seeds of soybean cultivar 003394768, to the plants of soybean 003394768 and to methods for producing a soybean plant produced by crossing the cultivar 003394768 with itself or another soybean variety. The invention further relates to hybrid soybean seeds and plants produced by crossing the cultivar 003394768 with another soybean cultivar.

Abstract: A novel soybean cultivar, designated 1572432, is disclosed. The invention relates to the seeds of soybean cultivar 1572432, to the plants of soybean 1572432 and to methods for producing a soybean plant produced by crossing the cultivar 1572432 with itself or another soybean variety. The invention further relates to hybrid soybean seeds and plants produced by crossing the cultivar 1572432 with another soybean cultivar.

Abstract: An inbred maize line, designated PHAJ0, the plants and seeds of inbred maize line PHAJ0, methods for producing a maize plant produced by crossing the inbred line PHAJ0 with itself or with another maize plant, and hybrid maize seeds and plants produced by crossing the inbred line PHAJ0 with another maize line or plant.

Abstract: An inbred maize line, designated PHJJ3, the plants and seeds of inbred maize line PHJJ3, methods for producing a maize plant produced by crossing the inbred line PHJJ3 with itself or with another maize plant, and hybrid maize seeds and plants produced by crossing the inbred line PHJJ3 with another maize line or plant.

Abstract: An inbred maize line, designated PHAP8, the plants and seeds of inbred maize line PHAP8, methods for producing a maize plant produced by crossing the inbred line PHAP8 with itself or with another maize plant, and hybrid maize seeds and plants produced by crossing the inbred line PHAP8 with another maize line or plant.

Abstract: An inbred maize line, designated PHPP8, the plants and seeds of inbred maize line PHPP8, methods for producing a maize plant produced by crossing the inbred line PHPP8 with itself or with another maize plant, and hybrid maize seeds and plants produced by crossing the inbred line PHPP8 with another maize line or plant.

Abstract: Broadly this invention provides inbred corn line ZS1284. The methods for producing a corn plant by crossing the inbred line ZS1284 are encompassed by the invention. Additionally, the invention relates to the various parts of inbred ZS1284 including culturable cells. This invention relates to hybrid corn seeds and plants produced by crossing the inbred line ZS1284 with at least one other corn line.

Abstract: According to the invention, there is provided an inbred corn line, designated PHT11. This invention thus relates to the plants and seeds of inbred corn line PHT11 and to methods for producing a corn plant produced by crossing the inbred line PHT11 with itself or with another corn plant. This invention further relates to hybrid corn seeds and plants produced by crossing the inbred line PHT11 with another corn line or plant.

Abstract: According to the invention, there is provided an inbred corn line, designated PHTE4. This invention thus relates to the plants and seeds of inbred corn line PHTE4 and to methods for producing a corn plant produced by crossing the inbred line PHTE4 with itself or with another corn plant. This invention further relates to hybrid corn seeds and plants produced by crossing the inbred line PHTE4 with another corn line or plant.

Abstract: The present invention relates to novel, recombinant deoxyribonucleic acids (DNA), to vectors and host organisms which contain them, and to transgenic plants which contain the recombinant DNA and possess an elevated resistance toward pernicious organisms and plant diseases, where the recombinant deoxyribonucleic acids (DNA) are characterized in that they consist of a combination of the following components, or components possessing a DNA which in each case has the same effect, or contain these constituents:(a) a double-stranded cDNA fragment which is derived from the RNA of the plum pox virus (PPV) ("fragment A"), and(b) a double-stranded cDNA fragment which is derived from the S RNA of the tomato spotted wilt virus (TSWV) ("fragment B"), it being possible for these combinations also to possess, in addition to further DNA fragments which may optionally be present, a promoter which is active in plant cells.

Abstract: A desired non-human animal or an animal cell or human cell which contains a predefined, specific and desired alteration in at least one of its two p53 chromosomal alleles, such that at least one of these alleles contains a mutation which alters the expression of the allele, and the other of the alleles expresses either a normal p53 gene product, or comprises an identical or different p53 mutation.

Abstract: The invention relates to transgenic non-human animals capable of producing heterologous antibodies of multiple isotypes. Heterologous antibodies are encoded by immunoglobulin heavy chain genes not normally found in the genome of that species of non-human animal. In one aspect of the invention, one or more transgenes containing sequences that permit isotype switching of encoded unrearranged heterologous human immunoglobulin heavy chains are introduced into a non-human animal thereby forming a transgenic animal capable of producing antibodies of various isotypes encoded by human immunoglobulin genes. Such heterologous human antibodies are produced in B-cells which are thereafter immortalized, e.g., by fusing with an immortalizing cell line such as a myeloma or by manipulating such B-cells by other techniques to perpetuate a cell line capable of producing a monoclonal heterologous antibody.

Abstract: An inbred corn line designated ZS0114, including plants of ZS0114 and pollen and seed of such plants. Also, a method of producing a corn plant by crossing ZS0114 either with itself or with another corn line and the first generation plants and seeds produced by such crosses.

Abstract: The present invention relates to a transgenic non-human mammal, whose germ cells and somatic cells contain a recombinant env gene sequence which is operably linked to a promoter effective for the expression of the gene in the neuronal tissues of the mammal and effective for the simulation of neurological syndromes associated with HIV-1, the gene being introduced into the mammal, or an ancestor of the mammal, at an embryonic stage. The transgenic non-human mammal is such that transcription of the env gene may be under the control of a promoter sequence, such as a neuron specific promoter of human neurofilament light gene (NFL). The promoter can be synthetic or inducible. The transgenic non-human mammal can be a rodent, such as a mouse.

Abstract: Methods and materials are provided to isolate the coat protein genes from maize chlorotic dwarf virus. One or more of these genes (MCDV-CP.sub.1, MCDV-CP.sub.2 or MCDV-CP.sub.3) is then incorporated in an expression cassette designed for suitable expression in a plant cell system. The resulting transformation vector is then introduced into maize to provide cross-protection to MCDV or related viral infections.

Abstract: A method is provided for making fruit (particularly tomatoes) having increased solids content which comprises cultivating fruit-bearing plants in which expression of genes homologous to pTOM36 is at least partially inhibited. For this purpose the fruit may be transformed with DNA constructs comprising a DNA sequence homologous to some or all of the gene encoded by the clone pTOM36. The clone is adapted to generate sense or antisense RNA under control of a plant promoter.

Abstract: The present invention provides isolated nucleic acid sequences encoding plant polygalacturonase inhibitor proteins (PGIP) which inhibit the activity of fungal polygalacturonases. Transgenic plants expressing a heterologous PGIP show increased resistance to fungi which normally infect the plants.

Abstract: Methods of creating transgenic tomatoes containing a lowered level of polygalacturonase isoform 1 are disclosed. The isolation of a DNA sequence encoding the polygalacturonase beta-subunit is disclosed. The beta-subunit sequence can be used to construct both sense and antisense plant expression constructions which can be transformed into tomato plants. The transgenic tomato plants have altered levels of polygalacturonase isoforms in that the level of isoform 1 is dramatically reduced. The resulting tomato fruit has a polygalacturonase activity level that is more heat labile, and thus more convenient for processing, and an increased level of soluble pectins.

Abstract: The present invention relates to a nucleic acid isolate comprising a sequence of nucleotides encoding, or complementary to a sequence encoding, a dihydrokaempferol (DHK) hydroxylating enzyme or derivative or part thereof. The present invention also relates to transgenic plants carrying and expressing the above mentioned nucleic acid material.

Abstract: A method for enhancing plant precocity and/or reducing stored nitrate content of a plant, wherein an over-expression of nitrate reductase is induced in the plant so as to induce an over-expression of nitrate reductase activity therein.

Abstract: A method for Agrobacterium-mediated transformation and regeneration of soybean is disclosed. The method utilizes a cotyledon explant which is prepared by first removing the hypocotyl and then tearing the two cotyledons apart at the cotyledonary node. The explant may be inoculated with either a smear of the disarmed Agrobacterium vector or of liquid culture of the bacterium.