Abstract: The present invention relates to a method for preparing psicose by effectively utilizing a psicose crystallization mother liquor obtained in a psicose crystallization process, and specifically, relates to a method of preparation of psicose by putting a psicose crystallization mother liquor obtained in a psicose crystallization process into one or more kinds of processes selected from the group consisting of activated carbon treatment, ion purification process, simulated moving bed chromatography separation process and concentration process of psicose fraction to recycle.

Abstract: Methods and systems for recovering materials from streams from processes for the co-production of propylene oxide and styrene monomer. The processes may permit the recovery of products, such a mono-propylene glycol, or the recycling of products, such as ?-methyl benzyl alcohol.

Abstract: The present disclosure relates to a method and an apparatus for decomposing a phenolic by-product generated in a bisphenol A preparation process, the method including: a step (S10) of feeding the phenolic by-product to a multistage reactive distillation column; a step (S20) of separating the phenolic by-product into an upper discharge stream containing an active component, a side discharge stream containing acetophenone, and a bottom discharge stream containing tar by the multistage reactive distillation column; and a step (S30) of mixing the side discharge stream discharged from the multistage reactive distillation column and the bottom discharge stream discharged from the multistage reactive distillation column to form a mixed discharge stream.

Abstract: Devices, systems, and methods for forming furan based surfactants by reactive distillation are disclosed herein. Various embodiments can provide a consolidated reaction process that uses reactive distillation to synthesize oleo-furan surfactant molecules and intermediates by combining reaction and separation steps into a single reaction unit or a number of connected reaction units. The single reaction unit or a number of connected reaction units can include a catalyst bed and act to separate reaction side products at opposing ends of the unit or units.

Abstract: Process for the continuous production of an optically active carbonyl compound by asymmetric hydrogenation of a prochiral ?,?-unsaturated carbonyl compound with hydrogen in the presence of a homogeneous rhodium catalyst that has at least one chiral ligand, wherein a liquid reaction mixture comprising the prochiral ?,?-unsaturated carbonyl compound is subjected in a first, backmixed reactor to a gas/liquid two-phase hydrogenation, and the liquid reaction mixture is then further hydrogenated in a second reactor, wherein the prochiral ?,?-unsaturated carbonyl compound is employed in the first reactor in a concentration from 3% to 20% by weight. The process allows a high total conversion to the prochiral ?,?-unsaturated carbonyl compound.

Abstract: Disclosed herein are the multiple charged cationic or anionic compounds, methods of making thereof, and articles or compositions comprising thereof. The disclosed multiple charged cationic or anionic compounds are derived from polyamines through two reactions: an aza-Michael addition with an activated olefin having an ionic group and a ring-opening reaction with an epoxide.

Abstract: Assay methods for determining purity of a sample of a sterol are provided. These methods include providing an HPLC eluent including a sterol, other compounds related to the sterol and a mobile volatile phase; generating an aerosol of liquid droplets from the HPLC eluent; drying the liquid droplets to obtain residue particles of the sterol; contacting the residue particles of the sterol with an ion stream which applies a size-dependent electrical charge to each of the residue particles to generate an electrical signal and measuring the electrical signal to determine the purity of the sterol in the sample. The sterol can be OXY133 or OXY133 monohydrate.

Abstract: Disclosed is a method of treating a tumor in a patient, comprising (a) administering riluzole in an amount effective to sensitize the tumor cells to ionizing radiation, and (b) irradiating the tumor cells with ionizing radiation in a dose effective to reduce tumor cell growth. The method can further comprise administering an effective amount of one or more additional therapeutic agents.

Abstract: The present inventions relates to the preparation of 3,3,5-trimethylcyclohexylidene bisphenol. Especially, the present invention relates to the preparation of 3,3,5-trimethylcyclohexylidene bisphenol from 3,3,5-trimethylcyclohexanone and phenol in the presence of a gaseous acidic catalyst. The preparation comprises a first drying step and a second drying step wherein in the second drying step the temperature is increased in comparison to first drying step or in the second drying step the pressure is lowered in comparison to first drying step, or in second drying step both the temperature is increased and the pressure is lowered in comparison to the first drying step (d1).

Abstract: This invention relates to a process for preparing a calixarene compound by reacting a phenolic compound and an aldehyde in the presence of at least one nitrogen-containing base as a catalyst to form the calixarene compound. The invention also relates to processes for high-yield, high solid-content production of a calixarene compound, with high selectivity toward a high-purity calix[8]arene compound, without carrying out a recrystallization step.

Abstract: A method for preparing dehydro-cyclofarnesal from dehydro-farnesal by cyclization in the presence of an acid may include the dehydro-farnesal being obtained from the farnesal by dehydrogenation and may further includes the cyclization being carried out in the presence of an acid selected from Lewis acids, Bronstedt acids, and zeolites. The synthesis of vitamin A using this method further includes the conversion of dehydro-cyclofarnesal into vitamin A.

Abstract: Disclosed are a perovskite compound, a method for producing the perovskite compound, a catalyst for a fuel cell including the perovskite compound, and a method for producing the catalyst. The perovskite compound overcomes the low stability of palladium due to its perovskite structural properties. Therefore, the perovskite compound can be used as a catalyst material for a fuel cell. In addition, the use of palladium in the catalyst instead of expensive platinum leads to an improvement in the price competitiveness of fuel cells. The catalyst is highly durable and catalytically active due to its perovskite structure.

Abstract: The invention discloses a phenylbenzofuran compound, preparation method therefor, composition containing the same and medical application thereof. The phenylbenzofuran compound is represented by the formula The preparation method includes a traditional Chinese medicine extraction method by using Sophorae Tonkinensis Radix Et Rhizoma coarse powder as a raw material, and a chemical synthesis method. Active component of the composition is phenylbenzofuran compound, and composition is a drug, food or health product. The application of the phenylbenzofuran compound in the preparation of a drug, a food or health product for preventing or treating a tumor, wherein the tumor is nasopharyngeal carcinoma. The phenylbenzofuran compound is prepared by traditional Chinese medicine extraction method and chemical synthesis method. It has been proved that phenylbenzofuran has certain inhibition effect on nasopharyngeal carcinoma cells CNE-1 and CNE-2 by tumor cell experiments in vitro.

Abstract: Dinitrogen tetroxide (N2O4) is synthesized in an apparatus by the reaction of concentrated nitric acid with copper. Oxygen is applied as a carrier gas to convert NO to NO2, and water vapor is removed with a tube dryer. A molecular sieve is applied to reduce and remove impurities.

Abstract: A method for separating monoethylene glycol (MEG) from one or more oxygenates. The method includes providing a stream comprising MEG and one or more oxygenates to a distillation column, providing a water feed stream to a bottom of the distillation column, and removing a recovery stream comprising MEG from the distillation column. The distillation column is operated at higher temperatures than the thermal stability of MEG and the one or more oxygenates.

Abstract: A novel catalyst composition and its use in the dehydrogenation of alkanes to olefins. The catalyst comprises a Group VIII noble metal and a metal selected from the group consisting of manganese, vanadium, chromium, titanium, and combinations thereof, on a support. The Group VIII noble metal can be platinum, palladium, osmium, rhodium, rubidium, iridium, and combinations thereof. The support can be silicon dioxide, titanium dioxide, aluminum oxide, silica-alumina, cerium dioxide, zirconium dioxide, magnesium oxide, metal modified silica, silica-pillared clays, silica-pillared micas, metal oxide modified silica-pillared mica, silica-pillared tetrasilicic mica, silica-pillared taeniolite, zeolite, molecular sieve, and combinations thereof. The catalyst composition is an active and selective catalyst for the catalytic dehydrogenation of alkanes to olefins.

Abstract: A (Z)-solanone has the steric formula of: or with the name of (S,Z)-5-isopropyl-8-methyl-6,8-diene-2-one or (R,Z)-5-isopropyl-8-methyl-6,8-diene-2-one. A process for the preparation of the (Z)-type solanone and the use thereof in flavoring of cigarette shred are further disclosed. The process includes the following steps: (1) reacting isopentanal and methyl vinyl ketone, under the action of a catalyst and a co-catalyst, to give (S)-2-isopropyl-5-carbonylhexanal or (R)-2-isopropyl-5-carbonylhexanal; (2) reacting the (S)-2-isopropyl-5-carbonylhexanal or the (R)-2-isopropyl-5-carbonylhexanal obtained in step (1) with (iodomethyl)triphenylphosphonium iodide, to give (S,Z)-7-iodo-5-isopropyl-6-ene-2-one or (R,Z)-7-iodo-5-isopropyl-6-ene-2-one; and (3) reacting the (S,Z)-7-iodo-5-isopropyl-6-ene-2-one or the (R,Z)-7-iodo-5-isopropyl-6-ene-2-one obtained in step (2) with pinacol isopropenylborate in the presence of a catalyst to give the (Z)-solanone.

Abstract: A method of producing a polyether polyol that includes reacting a low molecular weight initiator with ethylene oxide in the presence of a polymerization catalyst, the low molecular weight initiator having a number average molecular weight of less than 1,000 g/mol and a nominal hydroxyl functionality at least 2, and the polymerization catalyst being a Lewis acid catalyst having the general formula M(R1)1(R2)1(R3)1(R4)0 or 1. Whereas, M is boron, aluminum, indium, bismuth or erbium, R1, R2, and R3 each includes a same fluoroalkyl-substituted phenyl group, and optional R4 includes a functional group or functional polymer group. R1, R2, and R3 are the same fluoroalkyl-substituted phenyl group. The method further includes forming a polyether polyol having a number average molecular weight of greater than the number average molecular weight of the low molecular weight initiator in the presence of the Lewis acid catalyst.

Abstract: Methods for purifying the molybdenum-99 isotope are disclosed. Molybdenum-99 is loaded onto an anion exchange column and extracted. In some embodiments, the extraction solution may include nitric acid and nitrate salts. In other embodiments, a two stage elution is performed in which a nitric acid containing eluent and a hydroxide containing eluent are used in succession to extract molybdenum-99.

Abstract: A method for preparing 2,2?,4,4?-Tetrahydroxy-3-(2?-hydroxy-3?-methylbutyl-3?-alkenyl)chalcone includes the following steps: subjecting a Morus alba leaf to extraction with an aqueous solution of methanol or ethanol having a volume fraction of 40%-100%, concentrating an extract to remove methanol or ethanol and dissolving in water, subjecting to extraction with petroleum ether and ethyl acetate successively, and concentrating an ethyl acetate extract to obtain a paste; chromatographing the paste over a silica gel column using chloroform-methanol, collecting an eluate where the volume ratio of chloroform-methanol is 95/5; chromatographing the eluate over a reversed-phase column using methanol-water, collecting an eluate where the volume ratio of methanol-water is 60/40, and thereby the compound is obtained.