Preparation method of ruthenium cobalt magnetic catalyst and application thereof in selective hydrogenation

Abstract

The invention discloses a preparation method of a ruthenium cobalt magnetic catalyst and an application thereof in selective hydrogenation. The preparation method comprises the following steps of: 1,dissolving Co (NO3)2 6H2O in water to prepare a solution a; 2, preparing a chlororuthenium acid aqueous solution, and adding the chlororuthenium acid solution into the solution a to prepare a solutionb; 3, preparing a polyvinyloxane ketone solution, and adding the polyvinyloxane ketone solution into the solution b to prepare a solution c; 4, preparing a sodium borohydride solution, adding the sodium borohydride solution into the solution c, stirring, filtering to obtain a filter cake, washing the filter cake with deionized water until the filter cake is neutral, drying the filter cake after washing, and grinding to obtain Ru-Co(OH)2. The prepared ruthenium cobalt magnetic catalyst is applied to catalytic conversion of furfural to furfuryl alcohol. The ruthenium cobalt magnetic catalyst can achieve the catalytic hydrogenation of furfural to prepare furfuryl alcohol and achieve green and low-carbonization industrial production.

Description

technical field [0001] The invention relates to the field of catalysts and their applications, in particular to a preparation method of a ruthenium-cobalt magnetic catalyst and its application in selective hydrogenation. Background technique [0002] With the decrease of fossil energy, it is a major challenge facing the world today to seek renewable resources to replace fossil energy so as to achieve green and sustainable development. Biomass, as a short-term renewable, widely sourced and relatively clean resource, has received more and more attention. Utilize these biomass through some reasonable chemical treatment, and realize the effective transformation into many high value-added products, thereby replacing some chemical products that use fossil energy as raw materials. It not only saves resources, but also promotes the development of low-carbon economy, which has been highly valued by the country. As a large agricultural country, my country has abundant biomass reserv...

AI Technical Summary

Problems solved by technology

[0006]1) At present, the catalysts used in the production of furfuryl alcohol from furfural contain Cu, Cr, Pb and other toxic and harmful heavy metals, and the reaction residues will cause great harm to people and the environment Hazardous, unsuitable for disposal, not in line with today's concept of green, sustainable, low-carbon scientific development

[0007]2) The catalyst needs to work under higher reaction temperature and pressure, resulting in higher requirements on the reaction vessel, indirectly increasing the process cost, and the operating environment is relatively Danger

[0008]3) For the preparation of catalysts that have been reported so far, adsorption methods, deposition-precipitation methods, impregnation methods, etc. are generally used, and the carrier needs to be prepared before loading , the method is more cumbersome

[0009]4) Catalyst recovery requires filtering operation, the process is relatively complicated, which increases the investment cost

Therefore, the organic solvent needs to be replaced frequently, which is not conducive to the protection of the environment.

[0011]6) At present, in the reported basic research on this reaction, the catalyst with excellent catalytic conversion effect of furfural uses Pt, which is extremely expensive Precious metals, which have high cost issues that limit their use in industrial production

This will lead to a reduction in the yield of the target product furfuryl alcohol, increasing the cost of separation and purification operations

Images