Abstract:
A sponge cobalt catalyst composition contains water, an oxoacid, and a sponge cobalt catalyst. The oxoacid contains W or Mo, and part or all of the oxoacid is adsorbed to the sponge cobalt catalyst.
Abstract:
A supported catalyst and preparation method thereof, the catalyst comprising an organic polymer material carrier and Raney alloy particles supported on the organic polymer material carrier, wherein substantially all of the Raney alloy particles are partially embedded in the organic polymer material carrier. The catalyst can be used in hydrogenation, dehydrogenation, amination, dehalogenation or desulfuration reactions.
Abstract:
Process for preparing isophoronediamine, characterized in thatA) isophoronenitrile is subjected directly in one stage to aminating hydrogenation to give isophoronediamine in the presence of ammonia, hydrogen, a hydrogenation catalyst and possibly further additions, and in the presence or absence of organic solvents; orB) isophoronenitrile is first converted fully or partly in at least two or more than two stages to isophoronenitrile imine, and this isophoronenitrile imine is subjected to aminating hydrogenation to give isophoronediamine as a pure substance or in a mixture with other components and/or isophoronenitrile, in the presence of at least ammonia, hydrogen and a catalyst.
Abstract:
Disclosed herein are methods for synthesizing 1,2,5,6-hexanetetrol (HTO), 1,6 hexanediol (HDO) and other reduced polyols from C5 and C6 sugar alcohols or R glycosides. The methods include contacting the sugar alcohol or R-glycoside with a copper catalyst, most desirably a Raney copper catalyst with hydrogen for a time, temperature and pressure sufficient to form reduced polyols having 2 to 3 fewer hydoxy groups than the starting material. When the starting compound is a C6 sugar alcohol such as sorbitol or R-glycoside of a C6 sugar such as methyl glucoside, the predominant product is HTO. The same catalyst can be used to further reduce the HTO to HDO.
Abstract:
Disclosed herein are methods for synthesizing 1,2,5,6-hexanetetrol (HTO), 1,6 hexanediol (HDO) and other reduced polyols from C5 and C6 sugar alcohols or R glycosides. The methods include contacting the sugar alcohol or R-glycoside with a copper catalyst, most desirably a Raney copper catalyst with hydrogen for a time, temperature and pressure sufficient to form reduced polyols having 2 to 3 fewer hydoxy groups than the starting material. When the starting compound is a C6 sugar alcohol such as sorbitol or R-glycoside of a C6 sugar such as methyl glucoside, the predominant product is HTO. The same catalyst can be used to further reduce the HTO to HDO.
Abstract:
A method of introducing an additive to a biological material using a supercritical fluid is disclosed. The method comprises placing the biological material in a processing chamber, adding an additive to the supercritical fluid to form a supercritical fluid-additive mixture, adding the supercritical fluid-additive mixture to the processing chamber, and pulsing the mixture in the processing chamber. A processing system for introducing an additive to a biological material using a supercritical fluid in accordance with the present invention comprises a processing chamber for housing the biological material, a vat for storing a processing fluid, a pump, a heating element, an inlet port, and a flow path.
Abstract:
The present invention relates to petrochemistry, gas chemistry, coal chemistry, particularly the invention relates to a catalyst for synthesis of hydrocarbons from CO and H2 and a preparation method thereof. The catalyst is pelletized and comprises at least Raney cobalt as active component in an amount of 1-40% by weight based on the total weight of the catalyst, metallic aluminium in an amount of 25-94% by weight based on the total weight of the catalyst and a binder in an amount of 5-30% by weight based on the total weight of the catalyst. The present invention provides the catalyst stability to overheating and high productivity of hydrocarbons C5-C100 for synthesis of hydrocarbons from CO and H2.
Abstract:
The present invention provides a process for preparing methanol, dimethyl ether, and low carbon olefins from syngas, wherein the process comprises the step of contacting syngas with a catalyst under the conditions for converting the syngas into methanol, dimethyl ether, and low carbon olefins, characterized in that, the catalyst contains an amorphous alloy consisting of a first component Al and a second component, said second component being one or more elements or oxides thereof selected from Group IA, IIIA, IVA, VA, IB, IIB, IVB, VB, VIB, VIIB, VIII, and Lanthanide series of the Periodic Table of Elements, and said second component being different from the first component Al. According to the present process, the syngas can be converted into methanol, dimethyl ether, and low carbon olefins in a high CO conversion, a high selectivity of the target product, and high carbon availability.
Abstract:
A process for hydrogenation of oxygen-containing organic products, oil refinery products or mixtures thereof, wherein the process comprises bringing the organic products, oil refinery products, or mixtures thereof into contact with a catalyst according to claim 1 in the presence of hydrogen gas at a temperature in the range of 200 to 500° C. and at a pressure in the range of 10 to 1000 bar.
Abstract:
A method of producing a catalyst material with nano-scale structure, the method comprising: introducing a starting powder into a nano-powder production reactor, the starting powder comprising a catalyst material; the nano-powder production reactor nano-sizing the starting powder, thereby producing a nano-powder from the starting powder, the nano-powder comprising a plurality of nano-particles, each nano-particle comprising the catalyst material; and forming a catalyst precursor material from the nano-powder, wherein the catalyst precursor material is a densified bulk porous structure comprising the catalyst material, the catalyst material having a nano-scale structure.