The invention provides a process for the preparation of an alkylene glycol from an alkylene oxide. Alkylene oxide reacts with carbon dioxide in the presence of a carboxylation catalyst to provide alkylene carbonate; alkylene carbonate reacts with water in the presence of a hydrolysis catalyst to provide alkylene glycol. An initial charge of the carboxylation catalyst and an initial charge of the hydrolysis catalyst are added, the degradation and activity of the hydrolysis catalyst are ...
]]> 8110712 http://www.patentstorm.us/patents/8110711/description.html

Disclosed is a process for producing 2-bromo-2,2-difluoroethanol, which comprises reducing a bromodifluoroacetic acid derivative represented by the formula [1] by using an ate hydride complex as a reducing agent. 2-Bromo-2,2-difluoroethanol thus produced can be used as the starting material to carry out the esterification step, the sulfination step and the oxidation step in this order, thereby producing a 2-alkylcarbonyloxy-1,1-difluoroethanesulfonic acid salt, wherein A represents a ...
]]> 8110711 http://www.patentstorm.us/patents/8110710/description.html

This invention provides one-pot reaction for digesting polycarbonate waste with alkylene glycol in the presence of a basic catalyst at 180° C. under normal atmospheric pressure. The digested product mixture was found to consist of bisphenol A (BPA) and monoalkoxylated and bisalkoxylated diols of BPA. Alkoxylation of BPA and monoalkoxylated diols of BPA is performed by adding urea or urea derivative (or carbonic acid ester or amine ester) to the digested product mixture at a high ...
]]> 8110710 http://www.patentstorm.us/patents/8110709/description.html

The present invention relates to a process for the hydroformylation of ethylenically unsaturated compounds by reaction with carbon monoxide and hydrogen in the presence of a catalytically active fluid which comprises a dissolved metal complex of a metal of transition group VIII of the Periodic Table of the Elements with at least one phosphoramidite compound as ligand, wherein the fluid is brought into contact with a ...
]]> 8110709 http://www.patentstorm.us/patents/8110708/description.html

Ruthenium/activated charcoal (Ru/AC) treated with synthesized nano-ZnO (n-ZnO) is used for the first time as a novel composite catalyst in one-step self-condensation of acetone (DMK) to methyl isobutyl ketone in the gas phase. The DMK self-condensation was performed under atmospheric pressure, in a tubular glass fixed-bed microreactor, under DMK and H₂ continuous flow at temperature in the range of 523 to 648 K. Addition of n-ZnO to Ru/AC resulted in a pronounced increase in the ...
]]> 8110708 http://www.patentstorm.us/patents/8106246/description.html

Process for the manufacture of dichloropropanol in which glycerol is reacted with a chlorinating agent comprising hydrochloric acid in a liquid medium in equilibrium with a vapor phase and in which the condensation of a fraction exhibiting the composition of the vapor phase is ...
]]> 8106246 http://www.patentstorm.us/patents/8106245/description.html

Process for preparing a chlorohydrin, wherein a polyhydroxylated aliphatic hydrocarbon whose total metal content, expressed in elemental form, is greater than or equal to 0.1 μg/kg and less than or equal to 1000 mg/kg is reacted with a chlorinating ...
]]> 8106245 http://www.patentstorm.us/patents/8106244/description.html

The present invention relates to a process for preparation of a delta-9-tetrahydrocannabinol compound or derivative thereof involving treating a first intermediate compound with an organoaluminum-based Lewis acid catalyst, under conditions effective to produce the delta-9-tetrahydrocannabinol compound or derivative thereof. Another aspect of the present invention relates to a process for preparation of a cannabidiol or cannabidiolate compound involving reacting a first starting compound ...
]]> 8106244 http://www.patentstorm.us/patents/8106243/description.html

In a process for producing cyclohexylbenzene, benzene and hydrogen are contacted with a catalyst under hydroalkylation conditions to produce an effluent containing cyclohexylbenzene. The catalyst comprises a composite of a molecular sieve, an inorganic oxide different from said molecular sieve and at least one hydrogenation metal, wherein at least 50 wt % of said hydrogenation metal is supported on the inorganic oxide and the inorganic oxide has an average particle size less than 40 μm ...
]]> 8106243 http://www.patentstorm.us/patents/8101808/description.html

This invention is directed to methods for recovery of C3-C6 alcohols from dilute aqueous solutions, such as fermentation broths. Such methods provide improved volumetric productivity for the fermentation and allows recovery of the alcohol. Such methods also allow for reduced energy use in the production and drying of spent fermentation broth due to increased effective concentration of the alcohol product by the simultaneous fermentation and recovery process which increases the quantity of ...
]]> 8101808 http://www.patentstorm.us/patents/8101807/description.html

A hydrogenolysis method for converting glycerol into propylene glycol by directing a glycerol containing feed having a pH of about 10 or more to a reaction section including at least one glycerol conversion catalyst and operating at glycerol conversions conditions to form a reaction product including propylene ...
]]> 8101807 http://www.patentstorm.us/patents/8101806/description.html

The present invention relates to a granulated sorbitol of essentially γ crystalline form and having a high sorbitol content, characterized in that it has a specific surface area, determined according to the BET method, of greater than or equal to 2 m²/g, preferably of between 2.2 and 4 m²/g, and even more preferably of between 2.5 and 3.5 m²/g, a compressibility of between 200 and 400 N, preferably of between 250 and 350 N, and a volume-average diameter, ...
]]> 8101806 http://www.patentstorm.us/patents/8101805/description.html

A low-pressure one-step gas-phase process for the production and recovery of methyl isobutyl ketone (MIBK) is disclosed. One-step gas-phase synthesis of MIBK from acetone and hydrogen over nano-Pd/nano-ZnCr₂O₄ catalyst at atmospheric pressure is used as an example. The said process is designed to recover the additional heat associated with the reactor effluent via heating acetone feed and recycle (mixed acetone) before entering the reactor. A compressor is introduced ...
]]> 8101805 http://www.patentstorm.us/patents/8101804/description.html

A subject-matter of the present invention is a novel process for the synthesis of (E)-stilbene derivatives targeted at obtaining in particular resveratrol and ...
]]> 8101804 http://www.patentstorm.us/patents/8101803/description.html

Alkylthio substituted aldehydes, ketones, esters and sulfones are prepared by reacting α,β-unsaturated carbonyl and sulfonyl compounds with a sodium or potassium thiolate in the presence of a alkane carboxylic acid and ...
]]> 8101803 http://www.patentstorm.us/patents/8101802/description.html

Diallylic polysulfides (polysulfanes) are provided with sulfur chain lengths of 9 to 22. Also provided are bis(2-methyl-2-propenyl) polysulfides with sulfur chain lengths of 3 to 22. Also provided are 2-substituted bis(2-propenyl) polysulfides with sulfur chain lengths of 3 to 20. Also provided are the 2-cycloalken-1-yl polysulfides, 2-cyclohexen-1-yl polysulfides and 2-cyclopenten-1-yl polysulfides, with sulfur chain lengths of 3 to 20. Also provided are processes for extending the sulfur ...
]]> 8101802 http://www.patentstorm.us/patents/8097762/description.html

The present invention relates to a process for converting lutein and/or lutein esters to (3R)-β-cryptoxanthin and (3R,6′R)-α-cryptoxanthin, suitable for human consumption as dietary supplements, by employing safe and environmentally friendly reagents. (3R)-β-Cryptoxanthin and (3R,6′R)-α-cryptoxanthin are two rare food carotenoids that are not commercially available and the former exhibits vitamin A activity. In the first synthetic step, commercially available lutein and/or lutein ...
]]> 8097762 http://www.patentstorm.us/patents/8097761/description.html

A method for producing a composition containing carotenoid at a content of 80% or greater, characterized in performing extraction on a culture of a microorganism, a concentrate of the culture, or a dried substance thereof with at least one selected from the group consisting of lower alcohols, water-containing lower alcohols, lower dialkylketones and ethers; and then washing a precipitate, obtained by concentrating the extract solution, with at least one selected from the group consisting of ...
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