C07C255/04

OXIDATION CATALYSTS

Disclosed are catalysts comprised of platinum and gold. The catalysts are generally useful for the selective oxidation of compositions comprised of a primary alcohol group and at least one secondary alcohol group wherein at least the primary alcohol group is converted to a carboxyl group. More particularly, the catalysts are supported catalysts including particles comprising gold and particles comprising platinum, wherein the molar ratio of platinum to gold is in the range of about 100:1 to about 1:4, the platinum is essentially present as Pt(0) and the platinum-containing particles are of a size in the range of about 2 to about 50 nm. Also disclosed are methods for the oxidative chemocatalytic conversion of carbohydrates to carboxylic acids or derivatives thereof. Additionally, methods are disclosed for the selective oxidation of glucose to glucaric acid or derivatives thereof using catalysts comprising platinum and gold. Further, methods are disclosed for the production of such catalysts.

LITHIUM-ION BATTERY AND APPARATUS

The present application provides a lithium-ion battery and an apparatus, the lithium-ion battery includes an electrode assembly and an electrolyte. The electrode assembly includes a positive electrode sheet, a negative electrode sheet and a separation film. The positive active material in the positive electrode sheet includes Li.sub.x1Co.sub.y1M.sub.1-y1 O.sub.2-z1Q.sub.z1, 0.5≤x1≤1.2, 0.8≤y1≤1.0, 0≤z1≤0.1, and M is selected from one of Al, Ti, Zr, Y, and Mg, and Q is selected from one or more of F, Cl, and S. The electrolyte contains an additive A and an additive B, the additive A is a polynitrile six-membered nitrogen-heterocyclic compound with a relatively low oxidation potential, and the additive B is an aliphatic dinitrile or polynitrile compound with a relatively high oxidation potential. The lithium-ion battery of the present application has superb cycle performance and storage performance, especially under high-temperature and high-voltage conditions.

METHOD FOR PRODUCING NITRILE

The present invention provides a method of producing a nitrile from a primary amide, characterized in that the primary amide is subjected to a dehydration reaction in a supercritical fluid in the presence of an acid catalyst. The present invention achieves the object of reducing the corrosion of a reactor and the thermal decomposition of raw materials, as well as provides the effect of improving the reaction rate and nitrile selectivity.

METHOD FOR PRODUCING NITRILE

The present invention provides a method of producing a nitrile from a primary amide, characterized in that the primary amide is subjected to a dehydration reaction in a supercritical fluid in the presence of an acid catalyst. The present invention achieves the object of reducing the corrosion of a reactor and the thermal decomposition of raw materials, as well as provides the effect of improving the reaction rate and nitrile selectivity.

SOLID POLYMER ELECTROLYTE

The invention relates to a polymer composition comprising: a) a thermoplastic copolyester comprising i. polyester hard segments in an amount of between 5 and 50 wt. %, with respect to the total weight of the polymer composition, and ii. soft segments having a number average molecular weight of between 2.000 and 10.000 g/mol; and b) a metal salt; and c) an organic nitrile component, and wherein the metal salt is present in a weight percentage between 10 to 80 wt. %, the organic nitrile component is present in a weight percentage between 10 and 80 wt. %, and the soft segment is present in a weight percentage between 10 and 80 wt. %, wherein the weight percentages are with respect to the total weight of metal salt, organic nitrile component and soft segment; as well as a battery comprising the polymer composition

SOLID POLYMER ELECTROLYTE

The invention relates to a polymer composition comprising: a) a thermoplastic copolyester comprising i. polyester hard segments in an amount of between 5 and 50 wt. %, with respect to the total weight of the polymer composition, and ii. soft segments having a number average molecular weight of between 2.000 and 10.000 g/mol; and b) a metal salt; and c) an organic nitrile component, and wherein the metal salt is present in a weight percentage between 10 to 80 wt. %, the organic nitrile component is present in a weight percentage between 10 and 80 wt. %, and the soft segment is present in a weight percentage between 10 and 80 wt. %, wherein the weight percentages are with respect to the total weight of metal salt, organic nitrile component and soft segment; as well as a battery comprising the polymer composition

Oxidation catalysts

Disclosed are catalysts comprised of platinum and gold. The catalysts are generally useful for the selective oxidation of compositions comprised of a primary alcohol group and at least one secondary alcohol group wherein at least the primary alcohol group is converted to a carboxyl group. More particularly, the catalysts are supported catalysts including particles comprising gold and particles comprising platinum, wherein the molar ratio of platinum to gold is in the range of about 100:1 to about 1:4, the platinum is essentially present as Pt(0) and the platinum-containing particles are of a size in the range of about 2 to about 50 nm. Also disclosed are methods for the oxidative chemocatalytic conversion of carbohydrates to carboxylic acids or derivatives thereof. Additionally, methods are disclosed for the selective oxidation of glucose to glucaric acid or derivatives thereof using catalysts comprising platinum and gold. Further, methods are disclosed for the production of such catalysts.

Oxidation catalysts

Disclosed are catalysts comprised of platinum and gold. The catalysts are generally useful for the selective oxidation of compositions comprised of a primary alcohol group and at least one secondary alcohol group wherein at least the primary alcohol group is converted to a carboxyl group. More particularly, the catalysts are supported catalysts including particles comprising gold and particles comprising platinum, wherein the molar ratio of platinum to gold is in the range of about 100:1 to about 1:4, the platinum is essentially present as Pt(0) and the platinum-containing particles are of a size in the range of about 2 to about 50 nm. Also disclosed are methods for the oxidative chemocatalytic conversion of carbohydrates to carboxylic acids or derivatives thereof. Additionally, methods are disclosed for the selective oxidation of glucose to glucaric acid or derivatives thereof using catalysts comprising platinum and gold. Further, methods are disclosed for the production of such catalysts.

ELECTROHYDRODIMERIZATION OF ALIPHATIC OLEFINS WITH ELECTROCHEMICAL POTENTIAL PULSES
20200308716 · 2020-10-01 ·

Methods of making aliphatic compounds having two or more electron withdrawing groups and compositions comprising aliphatic organic compounds having one or more electron withdrawing groups. The methods are based on electrohydrodimerization of aliphatic olefinic compounds having one or more electron withdrawing groups using pulsed potential waveforms. A method may produce adiponitrile by electrolysis of acrylonitrile using pulsed waveforms. A composition may be an electrochemically produced organic phase composition. A composition may comprise one or more undesirable products, such as, for example, propionitrile, AN-derived oligomers, and the like. A composition may not have been subjected to any purification and/or separation after electrochemical production of one or more aliphatic compounds comprising two or more electron withdrawing groups.

ELECTROHYDRODIMERIZATION OF ALIPHATIC OLEFINS WITH ELECTROCHEMICAL POTENTIAL PULSES
20200308716 · 2020-10-01 ·

Methods of making aliphatic compounds having two or more electron withdrawing groups and compositions comprising aliphatic organic compounds having one or more electron withdrawing groups. The methods are based on electrohydrodimerization of aliphatic olefinic compounds having one or more electron withdrawing groups using pulsed potential waveforms. A method may produce adiponitrile by electrolysis of acrylonitrile using pulsed waveforms. A composition may be an electrochemically produced organic phase composition. A composition may comprise one or more undesirable products, such as, for example, propionitrile, AN-derived oligomers, and the like. A composition may not have been subjected to any purification and/or separation after electrochemical production of one or more aliphatic compounds comprising two or more electron withdrawing groups.