Abstract: In conventional procedures for the preparation of phosphorus-vanadium-oxygen catalysts, with or without promoting elements or carriers, the phosphorus compounds and vanadium compounds are mixed under conditions to form precursors. These precursors are then heated to temperatures up to 600.degree. C. to form phosphorus-vanadium-oxygen catalysts suitable for the conversion of saturated hydrocarbons, such as butane, to maleic anhydride. The present invention employs a new phosphorus-vanadium-oxygen hydrogen intermediate composition which can be converted to the precursor. Catalysts formed from the intermediate are used, according to this invention, for the conversion of saturated hydrocarbons to maleic anhydride.

Abstract: Certain N-trifluoroacetyl derivatives of N-substituted N-(phosphonomethyl)aminoethanal derivatives are described which display post-emergent herbicidal activity particularly against broadleaf weeds.

Abstract: Novel compounds are described in which an N-cyanomethyl, N-(diarylphosphonylmethyl)amine is substituted at the nitrogen atom with an ethylenically unsaturated group. The compounds are active herbicide and may provide an active ingredient in a herbicidal composition.

Abstract: Novel compounds are described which are glyphosate esters having an unsaturated substituent on the nitrogen atom of the glyphosate group. The compounds are active herbicides and may provide an active ingredient of a herbicidal composition.

Abstract: A process for preparing monoesters and diesters of N-alkyl substituted amino methyl phosphonic acid which are useful as herbicides.

Abstract: This disclosure relates to N-organo-N-phosphonomethylglycine-N-oxides and derivatives thereof. These compounds are useful to increase the sucrose content of sugarcane.

Abstract: The present invention provides for an improved process wherein an olefin, an alcohol, or an ester, halide or ether derivative of said alcohol is reacted with carbon monoxide in a liquid phase in the presence of a catalyst system containing a rhodium component and an iodine or bromine component. By passing at least a portion of the liquid reaction mass from the reaction zone to a separation zone of substantially lower CO partial pressure, at least a portion of the carbonylation products, as well as unreacted carbon monoxide, inert gases, and unreacted olefin, alcohol, or alcohol derivatives are vaporized and can be withdrawn from the separation zone. Precipitation of the rhodium catalyst under carbon monoxide deficient conditions is prevented or retarded by addition to the system of a stabilizer which is a tin component which may be tin or a tin compound.

Abstract: An acrylamide polymer comprising acrylamide and a sufficient amount of cinnamic acid to substantially reduce the viscosity of the acrylamide polymer and solution.

Abstract: The present invention provides for an improved process wherein an olefin, an alcohol, or an ester, halide or ether derivative of said alcohol is reacted with carbon monoxide in a liquid phase in the presence of a catalyst system that contains (a) a rhodium component, and (b) an iodine or bromine component. By passing at least a portion of the liquid reaction mass from the reaction zone to a separation zone of substantially lower CO partial pressure, at least a portion of the carbonylation products, as well as unreacted carbon monoxide, inert gases, and unreacted olefin, alcohol, or alcohol derivatives are vaporized and can be withdrawn from the separation zone. Precipitation of the rhodium catalyst under carbon monoxide deficient conditions is prevented or retarded by addition to the system of a stabilizer component selected from N,N,N',N'-tetramethyl-o-phenylenediamine and 2,3'-dipyridyl.

Abstract: Aromatic hydrocarbons selected from the group consisting of benzene and toluene are nitrated in the vapor phase at temperatures between about 80.degree. C. and about 190.degree. C. in the presence of a molecular sieve catalyst.

Abstract: This invention relates to a new class of organic chemical compounds. More particularly, this invention is concerned with amido and hydrazido derivatives of N-trifluoroacetyl-N-phosphinothioylmethylglycine. This class of compounds has been found to be useful as intermediates in producing amido and hydrazido derivatives of N-phosphinothioylmethylglycine esters which show herbicidal activity. Some of the class of compounds of this invention also show herbicidal activity when applied to certain varieties of weeds or undesired plants.

Abstract: Mixtures of crystals and a liquid, ordinarily comprising the mother liquor of the crystals are continuously separated by feeding the mixture into a screw type press having drainage apperatures, thereby subjecting the crystals with the mother liquor entrapped therein to pressures sufficient to substantially reduce the interstitial space between crystals. Reduction of the interstitial space causes the mother liquor to be forced out of the drainage aperatures thus purifying the crystals. This achieves a more effective separation of mother liquor from the crystals than can be achieved by gravity or the use of a device such as a centrifuge and eliminates the need for a foreign solvent to wash the mother liquor from the crystals.

Abstract: Nitrohalobenzenes are prepared in two stages by reacting monohalobenzene with nitric acid.

Abstract: Aromatic compounds are nitrated in the vapor phase via a process comprising contacting the aromatic compound with a nitrating agent in the presence of a nitration promotion catalyst which comprises the adduct of:(a) an alumina-silica-metal oxide combination represented by the formula:(Al.sub.2 O.sub.3).sub.a (SiO.sub.2).sub.b (M.sub.2/n O).sub.cwherein M is a metal cation selected from the group consisting of the lanthanides or rare earths, Groups 1b, 2b, 5b, 6b, 7b, and 8 of the Periodic Table of the Elements, and mixtures thereof, and a, b, and c represent weight percent of the Al.sub.2 O.sub.3, SiO.sub.2, and M.sub.2/n O components, respectively, in the alumina-silica-metal oxide combination, with a being 0 to 100, b being 0 to 100, and c being 0 to 50, and n represents an integer from 1 to 7 of the valence of the metal cation, with the proviso that the sum of (a+b) must be greater than 0, and(b) a catalytically effective amount of sulfur trioxide.

Abstract: Elastomeric polymers are rendered more tractable, thereby decreasing the amount of vehicle or heat required for vehicle- or melt-deposition, while resulting in very little or no loss of strength of the polymer, by the use of at least one compound comprising at least three hydrocarbon rings including at least one aromatic ring and, in most embodiments, at least one saturated ring free to rotate independently of at least one aromatic ring in the molecule of that compound. Compositions comprising an elastomeric polymer and at least one such compound are especially attractive for use in solvent, latex and/or hot melt adhesive compositions.

Abstract: A process is disclosed for producing chlorinated trisodium phosphate, comprising:(a) producing a hot sodium phosphate liquor, preferably with an overall Na/P mole ratio from 2.60 to 2.85;(b) adding sodium hypochlorite solution, preferably with an available chlorine content greater than 14%;(c) mixing the components, preferably from 70.degree. C. to 80.degree. C., only long enough to form a true solution;(d) cooling the melt by evaporative cooling under reduced pressure to form crystalline chlorinated trisodium phosphate;(e) air drying the product, if necessary, below about 40.degree. C.

Abstract: This invention relates to novel ester derivatives of N-alkylthio and N-cycloalkyl thio-N-phosphonomethylglycine which are useful as herbicides and to a process for producing the same. This invention further relates to herbicidal compositions containing such N-phosphonomethylglycine derivatives and to herbicidal methods employing such compounds and compositions.

Abstract: This invention relates to a process for preparing sulfenyl chloride derivatives of N-phosphonomethylglycine triesters which are useful as herbicides or intermediates for the production of thiosulfenamide derivatives of N-phosphonomethylglycine triesters compounds which are useful as herbicides.

Abstract: The invention herein pertains to dialkyl 3,5-bis(perfluoroalkyl)-2H-1,4-thiazine-2,6-dicarboxylates, a method for preparing the compounds and to herbicidal compositions and methods utilizing said compounds.

Abstract: This invention relates to alkyl, cycloalkyl, aryl, and araloweralkyl thiosulfenamide derivatives of N-phosphonomethylglycinonitriles which are useful as herbicides and a process for producing the same. This invention further relates to herbicidal compositions containing such derivatives and to herbicidal methods employing such compounds and compositions.