A method of manufacturing triacetonamine includes (a) introducing an acetone and an ammonia into a first reactor in the presence of a first acidic catalyst to form an acetonin; (b) introducing the acetonin and water into a second reactor in the presence of a second acidic catalyst to form a triacetonamine and side products, wherein the side products include diacetone alcohol, diacetone amine, mesityl oxide, 2,2,4,6-tetramethyl-2,3-dihydropyridine, or a combination thereof; (c) separating the triacetonamine and the side products by distillation under reduced pressure; (d) introducing the side products and water into a third reactor to heat and crack the side products in the presence of an amphiphilic catalyst to form acetone; and (e) introducing the acetone obtained from step (d) into the first reactor.

A composition that comprises a support material that is loaded with an active metal or metal precursor, an amine component, and a non-amine containing polar additive. The composition is useful in the hydroprocessing of hydrocarbon feedstocks. The composition is prepared by incorporating a metal solution into a support material followed by incorporating therein an amine component and a non-amine containing polar additive.

Colloidal silica containing silica particles that have a small particle size (e.g., an average primary particle size of nm or less) and that contain alkoxy groups, and a method for producing the colloidal silica, are disclosed. The colloidal silica containing silica particles can have a small particle size and exhibit a suppressed increase in the average secondary particle size after storage. The colloidal silica containing silica particles wherein the silica particles have an average primary particle size of 20 nm or less, the silica particles have a ratio (m/n) of the content of alkoxy groups m (ppm) to the average primary particle size n (nm) of 300 or more, the silica particles have a particle density of 1.95 or more, and the silica particles have an increase rate of average secondary particle size of 12% or less in a storage stability test.

The present invention relates to an enhanced catalytic nickel oxide sheet having an organic part which includes non-stoichiometric nickel oxides dispersed in an organic matrix, wherein the catalytic sheet is supported on a substrate. The invention also relates to a method for obtaining the catalytic film and to its uses as an electrode in electrocatalysis of water or in photocatalysis.

The present invention relates to a catalyst composite for exchanging hydrogen isotope and a manufacturing method thereof, and more specifically, to a catalyst composite for exchanging hydrogen isotope which has hydrophobicity and prevents liquid water from covering the catalyst while at the same time not blocking water molecules from approaching the catalyst, so that the efficiency of the hydrogen isotope exchange reaction can also be secured very excellently, and at the same time, excellent reaction efficiency can be secured without relying on the hydrophobicity of a support, and thus the present invention relates to a catalyst composite for exchanging hydrogen isotope and manufacturing method thereof which is very excellent in terms of its utilization.

The present invention is directed to providing a method of preparing a heterogeneous linear carbonate, including: performing a transesterification reaction of dimethyl carbonate (DMC) and ethanol (EtOH) in the presence of a catalyst, wherein the catalyst is an amine-based compound having a boiling point of 150 C. or more.