Abstract: A method including contacting an organic stream with water and carbon dioxide, whereby sodium is extracted from the organic stream, and separating an aqueous sodium salt-containing phase from an organic phase comprising a reduced sodium content. The organic stream can be a heavy residue formed in the co-production of propylene oxide and styrene. Contacting can include combining the carbon dioxide with the water to form a CO2-saturated water stream and contacting the CO2-saturated water stream with the organic stream, and/or combining the organic stream and the water to form a mixture and injecting the carbon dioxide as a gas thereinto. The method can further include repeating the contacting and the separating one or more times on the organic phase, subjecting the organic phase to ion exchange, or both, to obtain an organic phase having a further reduced sodium content. A system for carrying out the method is also provided.

Abstract: The present disclosure relates to a method including subjecting an organic stream comprising at least one oxygenate to hydrotreatment, whereby a hydrotreatment product comprising ethylbenzene is produced, wherein the organic stream is a product of a process for the production of propylene oxide; and separating an ethylbenzene product stream from the hydrotreatment product, to yield a residual stream.

Abstract: The present disclosure relates to a method for effecting catalytic selective oxidation in liquid phase comprising a perfluorinated solvent and an olefinic compound with molecular oxygen to produce an epoxide. The method may provide enhanced selectivity to the epoxide of greater than 60%. The olefinic compound may be ethylene, propylene, butenes, 1-octene, butadiene, allyl chloride, allyl alcohol, styrene, and the like. The perfluorinated solvent may be perfluoro methyldecalin, perfluorodecalin, perfluoroperhydrophenanthrene, perfluoro (butyltetrahydrofuran), isomers thereof, or a combination thereof. In some embodiments, the method includes catalytically epoxidizing, in a liquid phase comprising a perfluorinated solvent, propylene with molecular oxygen to produce propylene oxide.

Abstract: The present disclosure relates to a method including subjecting an organic stream comprising at least one oxygenate to hydrotreatment, whereby a hydrotreatment product comprising ethylbenzene is produced, wherein the organic stream is a product of a process for the production of propylene oxide; and separating an ethylbenzene product stream from the hydrotreatment product, to yield a residual stream.

Abstract: The present disclosure generally relates to a silver-based epoxidation catalyst. In certain embodiments, a method is provided for modulating the reactivity of the silver-based epoxidation catalyst, comprising the catalyst being post-treated with at least two different salt solutions. In some embodiments, the treatment results in the deposition of one or more metals onto the surface of the catalyst. In further embodiments, method is also provided of using the silver catalyst to generate an epoxide from an olefin.

Abstract: A method including contacting an organic stream with water and carbon dioxide, whereby sodium is extracted from the organic stream, and separating an aqueous sodium salt-containing phase from an organic phase comprising a reduced sodium content. The organic stream can be a heavy residue formed in the co-production of propylene oxide and styrene. Contacting can include combining the carbon dioxide with the water to form a CO2-saturated water stream and contacting the CO2-saturated water stream with the organic stream, and/or combining the organic stream and the water to form a mixture and injecting the carbon dioxide as a gas thereinto. The method can further include repeating the contacting and the separating one or more times on the organic phase, subjecting the organic phase to ion exchange, or both, to obtain an organic phase having a further reduced sodium content. A system for carrying out the method is also provided.

Abstract: The present disclosure relates to a method for effecting catalytic selective oxidation in liquid phase comprising a perfluorinated solvent and an olefinic compound with molecular oxygen to produce an epoxide. The method may provide enhanced selectivity to the epoxide of greater than 60%. The olefinic compound may be ethylene, propylene, butenes, 1-octene, butadiene, allyl chloride, allyl alcohol, styrene, and the like. The perfluorinated solvent may be perfluoro methyldecalin, perfluorodecalin, perfluoroperhydrophenanthrene, perfluoro (butyltetrahydrofuran), isomers thereof, or a combination thereof. In some embodiments, the method includes catalytically epoxidizing, in a liquid phase comprising a perfluorinated solvent, propylene with molecular oxygen to produce propylene oxide.

Abstract: A catalyst composition which comprises titanium, wherein part of the titanium is present as a titanium dioxide phase and at least some of the titanium dioxide phase is in the brookite polymorphic form is provided. In some embodiments, the catalyst also comprises a silica support which exhibits a high surface area and pore volume. Methods of preparing the catalyst and its use in an epoxidation reaction are also provided.

Abstract: The present disclosure relates to a method of epoxidizing an olefin to form an epoxide, the method comprising contacting an alkene(C?12) or aralkene(C?12) with a titanium silica catalyst, a peroxide, a buffer, and one or more organic solvents in a reaction mixture, wherein the one or more organic solvents comprise a first organic solvent selected from: R1—OH??(I), R2—CN??(II), R3—C(O)—R4??(III) or R5—O—R6??(IV) wherein: R1 is alkyl(C?12), aryl(C?12), aralkyl(C?12) or a substituted version of any of these groups; R2 is alkyl(C?12), aryl(C?12), aralkyl(C?12) or a substituted version of any of these groups; R3 is hydrogen, alkyl(C?6) or substituted alkyl(C?6); and R4, R5, and R6 are each independently selected from alkyl(C?12), aryl(C?12), aralkyl(C?12) or a substituted version of any of these groups, or are taken together are alkoxydiyl(C?12), alkanediyl(C?12), substituted alkoxydiyl(C?12) or substituted alkanediyl(C?12).

Abstract: The present disclosure relates to metallocene catalysts for use in polymerization processes. Such catalysis may be used to generate long chain polymers with low long chain branching and high molecular weights. Additionally, the size of the polymers produced can be controlled by modifying the ratio of MAO or other activator to metallocene catalyst.

Abstract: A catalyst composition which comprises titanium, wherein part of the titanium is present as a titanium dioxide phase and at least some of the titanium dioxide phase is in the brookite polymorphic form is provided. In some embodiments, the catalyst also comprises a silica support which exhibits a high surface area and pore volume. Methods of preparing the catalyst and its use in an epoxidation reaction are also provided.

Abstract: The present disclosure relates to a method of preparing propylene oxide comprising the steps: (a) oxidizing alpha-methylbenzyl alcohol with air to form a first reaction mixture comprising hydrogen peroxide and acetophenone; (b) reacting propylene with the first reaction mixture in the presence of a catalyst to form a second reaction mixture comprising propylene oxide; (c) separating the propylene oxide from the second reaction mixture to form a third reaction mixture; (d) heating the third reaction mixture to decompose hydrogen peroxide, whereby a fourth reaction mixture is formed; (e) hydrogenating the acetophenone in the fourth reaction mixture with hydrogen to form a fifth reaction mixture comprising alpha-methylbenzyl alcohol; and (f) separating alpha-methylbenzyl alcohol from the fifth reaction mixture and returning the methyl benzyl alcohol to step (a).

Abstract: A method for tracking the movement and trajectory of objects associated with wireless devices, located in a predefined area, wherein transceiver nodes communicating with the monitored wireless communication devices are formed, the objects associated with wireless communication device entering or located in the range of the transceiver nodes are detected by said transceiver nodes and relevant collected data are processed by measuring the strength of the signal emitted by the object during communication by at least two access points, converting the measured signal strength data into a vector set, selecting and filtering out the objects that are communicating but make no movement by evaluating the vector set, and analyzing the movement of the communicating objects changing their place by applying a pre-defined mathematical model. Access points operating according to a small-range “peer-to-peer” (P2P) type wireless communication standard are used as transceiver nodes.

Abstract: The present disclosure generally relates to a silica-titanium catalyst prepared by first reacting a solid support with a metal alkoxide and then depositing titanium onto the solid support for the epoxidation of alkenes and aralkenes and a method of preparing the catalyst thereof. In some embodiments, the present disclosure relates to methods of using the catalyst described herein for the production of epoxides.

Abstract: Method of preparing epoxidation catalysts are disclosed, including methods comprising reacting an inorganic siliceous solid with a metal complex of the formulas: wherein the variables are defined herein.

Abstract: Epoxidation methods and catalyst are described herein. The epoxidation catalysts generally include a metal component including silver and a support material including kaolinite, wherein the epoxidation catalyst includes less than 55 wt. % metal component.

Abstract: The present disclosure generally relates to a silver-based epoxidation catalyst. In certain embodiments, a method is provided for modulating the reactivity of the silver-based epoxidation catalyst, comprising the catalyst being post-treated with at least two different salt solutions. In some embodiments, the treatment results in the deposition of one or more metals onto the surface of the catalyst. In further embodiments, method is also provided of using the silver catalyst to generate an epoxide from an olefin.

Abstract: The present disclosure relates to a method of epoxidizing an olefin to form an epoxide, the method comprising contacting an alkene(C?12) or aralkene(C?12) with a titanium silica catalyst, a peroxide, a buffer, and one or more organic solvents in a reaction mixture, wherein the one or more organic solvents comprise a first organic solvent selected from: R1—OH??(I), R2—CN??(II), R3—C(O)—R4??(III) or R5—O—R6??(IV) wherein: R1 is alkyl(C?12), aryl(C?12), aralkyl(C?12) or a substituted version of any of these groups; R2 is alkyl(C?12), aryl(C?12), aralkyl(C?12) or a substituted version of any of these groups; R3 is hydrogen, alkyl(C?6) or substituted alkyl(C?6); and R4, R5, and R6 are each independently selected from alkyl(C?12), aryl(C?12), aralkyl(C?12) or a substituted version of any of these groups, or are taken together are alkoxydiyl(C?12), alkanediyl(C?12), substituted alkoxydiyl(C?12) or substituted alkanediyl(C?12).

Abstract: The present disclosure relates to a method of preparing propylene oxide comprising the steps: (a) oxidizing alpha-methylbenzyl alcohol with air to form a first reaction mixture comprising hydrogen peroxide and acetophenone; (b) reacting propylene with the first reaction mixture in the presence of a catalyst to form a second reaction mixture comprising propylene oxide; (c) separating the propylene oxide from the second reaction mixture to form a third reaction mixture; (d) heating the third reaction mixture to decompose hydrogen peroxide, whereby a fourth reaction mixture is formed; (e) hydrogenating the acetophenone in the fourth reaction mixture with hydrogen to form a fifth reaction mixture comprising alpha-methylbenzyl alcohol; and (f) separating alpha-methylbenzyl alcohol from the fifth reaction mixture and returning the methyl benzyl alcohol to step (a).

Abstract: A catalyst system obtainable by contacting: A) a metal complex of formula (I) B) an iron complex of the general formula (II) C) an alumoxane or a compound capable of forming an alkyl cation with complexes of formula (I) and (II); Wherein the variables are described in the description.