62results about How to "Easy for industrial scale-up production" patented technology

The invention provides a Cu-Fe-based catalyst used in synthesis of a higher alcohol with synthetic gas having high C5<+> alcohol selectivity and a preparation method thereof. The expression of the catalyst is CuxFeyMz / SiO2, CuxFeyMz / Al2O3 or CuxFeyMz / (SiO2+Al2O3), wherein M is one or the combination of a transition metal element, an alkali metal element, an alkali earth metal element or a rare earth element; a catalyst carrier is SiO2 or Al2O3 or a mixture of SiO2 and Al2O3; the percentages by weight of active ingredients, i.e., Cu, Fe and M loaded in the catalyst are x, y and z based on the total weight of the catalyst; y / x=0.5-2; z / x=0.001-0.4; x+y+z is more than or equal to 20 percent and less than or equal to 85 percent; and the balance is a catalyst carrier. The catalyst is prepared by soaking and performing stepwise reduction. The Cu-Fe-based catalyst can be used in a process for synthesizing a higher alcohol with synthetic gas. The catalyst has low cost, a simple preparation method and stable performance, and is easy for industrial scale-up production. Compared with catalysts of the same type, the catalyst used in synthesis of the higher alcohol with synthetic gas has the advantages of mild reaction condition and low requirement on reaction equipment.

The invention relates to a method for synthesis of 2,2,4-trimethyl-1,2-dihydroquinoline and a polymer thereof by high-throughput microchannel reactors. A mixture of acetone and aniline hydrochloride is used as a starting reaction raw material and is injected into a microchannel reactor system for reaction, wherein the microchannel reactor system is composed of 1-10 pieces of microchannel reactors which are connected together in series and can be used for continuous flowing, the single-piece reactors are connected together in series by microchannels having the shape similar to a heart shape, and the liquid holdup amount is 8-10 ml; and a continuous flowing reaction is carried out. Through a heat carrier circulation system, the reaction temperature is set to 90-120 DEG C, the pressure is set to 0-10 bar, and the reaction standing time is set to 20-200 s; the obtained solution is cooled by a condenser and is collected, unreacted acetone is removed by distillation, and the target product is obtained. The preparation method provided by the invention has the advantages of continuous reaction performing, short required reaction time, no amplification effect, and strong versatility, does not require to remove generated water during the reaction process, and can be applied to various liquid-liquid, gas-liquid and other chemical reactions.

The invention provides a Cu-Fe-Co base catalyst which has higher C2<+> alcohol selectivity and is used for synthesizing low carbon alcohol by utilizing synthesis gas and a preparation method thereof. The expression of the catalyst is CuaFebCocMd / SiO2, or CuaFebCocMd / Al2O3 or CuaFebCocMd / (SiO2+Al2O3), wherein M is one or a combination of more than one of transitional metal element, alkali metal, alkaline earth metal and rare-earth element, and a catalyst carrier is SiO2 or Al2O3 or a mixture of SiO2 and Al2O3; and loaded active components Cu, Fe, Co and M in the catalyst respectively account for a, b, c and d of the total weight of the catalyst (wt%), a is 10-35%, b is 10-35%, c is 1-10%, d is 0-5%, and the catalyst carrier accounts for 15-79%. The catalyst is prepared by adopting the steps of impregnation and substep reduction. The Cu-Fe-Co base catalyst provided by the invention can be applied to the low carbon alcohol process by virtue of the synthesis gas. The catalyst provided by the invention has low cost, a simple preparation method and stable performance, and the industrial amplification production is easy to realize; and compared with similar catalysts, the catalyst provided by the invention has mild reaction conditions and low reaction equipment requirements when being used for synthesizing the low carbon alcohol by utilizing the synthesis gas.

The present invention relates to a catalyst for cyclobutenesulfphone hydrogenation, its general formula is NixCoyBmPn, in which x=0-80, y=0.70, m=0-50 and n=0-50. It is an amorphous alloy, and possesses high low-temp. activity, and is easy to industrial production.