EXHAUST GAS PURIFICATION CATALYST

    公开(公告)号:US20230001391A1

    公开(公告)日:2023-01-05

    申请号:US17780622

    申请日:2020-11-27

    摘要: An object of the present invention is to provide an exhaust gas purification catalyst having improved exhaust gas purifying performance (in particular, improved NOx purifying performance) at low to medium temperature, and, in order to achieve the object, the present invention provides an exhaust gas purification catalyst (10A) including: a substrate (20); and a catalyst layer (30 or 40) formed on the substrate (20), wherein the catalyst layer (30 or 40) contains rhodium element, phosphorus element and a rare earth element other than cerium element, wherein a ratio of a mass of the phosphorus element contained in the catalyst layer (30 or 40) to the mass of the rhodium element contained in the catalyst layer (30 or 40) is from 1 to 10, and wherein a ratio of a mass of the rare earth element other than cerium element in terms of an oxide thereof contained in the catalyst layer (30 or 40) to the mass of the rhodium element contained in the catalyst layer (30 or 40) is from 1 to 5.

    METHOD AND CATALYST FOR PRODUCING METHYLBENZYL ALCOHOL FROM ETHANOL BY CATALYTIC CONVERSION

    公开(公告)号:US20210053038A1

    公开(公告)日:2021-02-25

    申请号:US16636570

    申请日:2018-09-28

    摘要: Method and catalyst for producing methylbenzyl alcohol from ethanol by catalytic conversion. A route and corresponding catalysts for directly producing methylbenzyl alcohols through catalytic conversion starting from ethanol, providing an important alternative route for increasing the production of aromatic oxygenates. The selectivity of the methylbenzyl alcohols is up to 60%. At the same time, the prepared catalysts have excellent stability. Moreover, this innovative reaction route produces hydrogen as co-product without CO, thus can be directly used in chemical reactions and fuel cells. In addition, the route also produces high carbon number alcohols which can be used as fuels or oil additives to partially replace petroleum-based products, thus partly reducing the dependence on petroleum.

    SOLVENT-FREE MELT POLYCONDENSATION PROCESS OF MAKING FURAN-BASED POLYAMIDES

    公开(公告)号:US20200283577A1

    公开(公告)日:2020-09-10

    申请号:US16881441

    申请日:2020-05-22

    摘要: Disclosed herein are processes of making furan-based polyamides using solvent-free melt condensation of a diamine and an ester derivative of 2,5-furandicarboxylic acid with a C2 to C12 aliphatic diol or a polyol. The processes comprise a) forming a reaction mixture by mixing one or more diamines, a diester comprising an ester derivative of 2,5-furandicarboxylic acid with a C2 to C12 aliphatic diol or a polyol, and a catalyst, such that the diamine is present in an excess amount of at least 1 mol % with respect to the diester amount; and b) melt polycondensing the reaction mixture in the absence of a solvent at a temperature in the range of 60° C. to a maximum temperature of 250° C. under an inert atmosphere, while removing alkyl alcohol to form a furan-based polyamide, wherein the one or more diamines comprises an aliphatic diamine, an aromatic diamine, or an alkylaromatic diamine.

    METHOD FOR PRODUCING OCTACALCIUM PHOSPHATE SHAPED PRODUCT

    公开(公告)号:US20200115231A1

    公开(公告)日:2020-04-16

    申请号:US16621882

    申请日:2018-06-15

    申请人: GC Corporation

    摘要: The present invention provides: a method for producing a shaped product comprising octacalcium phosphate and having a volume of 2.0 mm3 or more, comprising immersing a precursor ceramic composition containing at least one of Ca and PO4 in composition, having a solubility in H2O higher than that of octacalcium phosphate, and having a volume greater than 2.0 mm3, in a solution containing a component which is not contained in the precursor ceramic composition, among the components Ca, PO4 and H2O, which are components of octacalcium phosphate to allow the precursor ceramic composition to react, thereby converting at least a part of the precursor ceramic composition into octacalcium phosphate; and the like.