Patent classifications
B01J31/0244
Hydroxytyrosol p-phenylenedicarboxylate having antioxidant activity and a method of preparing the same
A compound having the formula (I): ##STR00001##
is disclosed. A method of preparing the compound of formula (I) is also disclosed.
Ionic liquid alkylation of isobutane with ethylene to produce alkylate
A process for producing high octane alkylate is provided. The process involves reacting isobutane and ethylene using an ionic liquid catalyst. Reaction conditions can be chosen to assist in attaining, or to optimize, desirable alkylate yields and/or properties.
Aerogel blanket for ultra-high temperature, production method thereof, and construction method thereof
The present invention relates to a hydrophilic silica aerogel blanket for ultra-high temperature insulation, a production method thereof, and a construction method thereof. More specifically, the present invention provides a production method a hydrophilic silica aerogel blanket, the method capable of strengthening the structure of a silica gel by adding a basic catalyst in an aging step, reducing processing time and cost by omitting a surface modification step, thereby reducing manufacturing cost, and suppressing the generation of a bad odor during construction by fundamentally blocking a volatile organic compound (VOC), a hydrophilic silica aerogel blanket produced thereby, and a construction method of a hydrophilic silica aerogel blanket, the method capable of suppressing the generation of a bad odor when constructing the hydrophilic aerogel blanket on an ultra-high temperature piping equipment, and at the same time, preventing the loss of heat insulation performance due to moisture in the air.
Antifungal compound process
The present invention relates to a process for preparing a compound of 5 or 5*, or a mixture thereof, that is useful as an antifungal agent. In particular, the invention seeks to provide new methodology for preparing compounds 7, 7* and 11, 11* and substituted derivatives thereof.
CATALYSTS FOR CHEMICAL REACTIONS IN A WATER-SURFACTANT MIXTURE
The present invention is directed to reaction mixtures comprising a water-surfactant mixture, wherein the catalyst comprises a compound with solubilizing groups. This technology improves the solubility of the reaction components in the water-surfactant mixture and thereby, greatly increases the productivity and selectivity of the chemical reaction.
PROCESS FOR PREPARING ISOCYANATES CONTAINING ALKOXYSILANE GROUPS
The invention relates to a process for preparing isocyanate containing alkoxysilane groups, in which, in the sequence of steps A) to D),
A) haloalkylalkoxysilane is reacted with metal cyanate and alcohol to give alkoxysilanoalkylurethane,
B) alkoxysilanoalkylurethane is freed of low boilers, solids, salt burdens and/or high boilers and optionally purified,
C) alkoxysilanoalkylurethane obtained after B) is thermally cleaved to release isocyanate containing alkoxysilane groups and by-product, leaving bottoms material, and
D) isocyanate containing alkoxysilane groups and by-product are separated from one another and from cleavage bottoms material and collected,
wherein the process regime at least of steps C) to D) is continuous.
Device, process, and catalyst intended for desulfurization and demercaptanization of gaseous hydrocarbons
This application is in the field of technologies for desulfurization and demercaptanization of gaseous hydrocarbons. The device includes a catalytic reactor loaded with a catalyst solution in an organic solvent, a means of withdrawal sulfur solution from the reactor into the sulfur-separating unit, and a sulfur-separating unit. The said device has at least means of supplying gaseous hydrocarbon medium to be purified and oxygen-containing gas into the reactor, and a means of outletting the purified gas from the reactor. The sulfur-separation unit includes a means of sulfur extraction. The reactor design and the catalyst composition provide conversion of at least 99.99% of hydrogen sulfide and mercaptans into sulfur and disulfides. The catalyst is composed of mixed-ligand complexes of transition metals. The technical result achieved by use of claimed invention is single-stage purification of gaseous hydrocarbons from hydrogen sulfide and mercaptans with remaining concentration of SH down up to 0.001 ppm.
Catalyst complex and method of degradation of a polymer material
A catalyst complex for catalysis of degradation of a polymer material is described. Said complex comprises a magnetic particulate body containing iron oxide at its surface with an average diameter of 150-450 nm, and a plurality of catalytic groups grafted onto the iron oxide surface of the magnetic particulate body, which catalytic groups comprise a bridging moiety and a catalyst entity, wherein the bridging moiety comprises a functional group for adhesion or bonding to the iron oxide surface and a linking group towards the catalyst entity, and wherein the catalyst entity comprises a positively charged aromatic heterocycle moiety, and a negatively charged moiety for balancing the positively charged aromatic moiety.
PREPARATION OF AMINO ACIDS AND AMINO ACID DERIVATIVES
The invention relates to a method for synthesizing amino acids or amino acid derivatives involving cross metathesis of functionalized olefins and a tandem amination-reduction process. Amino acids and amino acid derivatives present many interesting physical and chemical properties finding many uses in the automotive, fuel, electronic, and textile industries.
Device, process, and catalyst intended for desulfurization/demercaptanization/dehydration of gaseous hydrocarbons
This application is in the field of technologies for desulfurization and demercaptanization of raw gaseous hydrocarbons (including natural gas, tail gas, technological gas, etc, including gaseous media). It can be used for simultaneous dehydration and desulfurization/demercaptanization of any kind of raw gaseous hydrocarbons.