7results about How to "High pore volume" patented technology

The application discloses a high-strength, large-pore-volume phosphorus-containing binder, characterized in that the binder comprises a glue, a curing agent and a modifier; the glue comprises a phosphorus-containing compound and an aluminum-containing compound; the curing agent comprises a gamma-aluminum oxide precursor, an acid and an alkylammonium salt, and the modifier is a metal chelate; wherein the colloidal solubility index of the gamma-aluminum oxide precursor is less than or equal to 50%; and the modifier is reacted with the glue in a high-shear dispersion emulsifier. The phosphorus-containing binder provided by the application, in combination with a conventional method, can obtain a catalytic cracking catalyst which, on the basis of high molecular sieve content and large pore volume, still has high wear resistance.

The invention discloses a silicon oxide microsphere as well as a preparation method and application thereof. The silicon oxide microspheres are large-aperture silicon oxide microspheres, the specific surface area is 395-750m < 2 > / g, the pore volume is 1.0-3.5 ml / g, and the average aperture is 17-50nm. The silicon oxide microspheres have the characteristics of large specific surface area, large pore volume and large pore diameter, and the catalyst prepared by using the silicon oxide microspheres as the carrier has the advantage that the activity is remarkably improved when the catalyst is applied to olefin polymerization reaction.

This invention discloses a method for preparing silica microspheres, the prepared silica microspheres, and their applications. The method for preparing silica microspheres includes: (1) heating a mixture of n-alkane and pitch under reflux to separate a solid product; (2) mixing the solid product from step (1) with a mixture of aromatics I, a first silicon source, a polyoxyethylene-polyoxypropylene-polyoxyethylene copolymer, and water to obtain a crystallization solution, followed by hydrothermal crystallization and calcination to obtain an intermediate product; (3) mixing the intermediate product from step (2), a second silicon source, a pore-forming agent, and water to obtain a slurry; then, spray-drying and calcining the slurry to obtain the silica microspheres. The silica microspheres prepared by this method have the advantages of large specific surface area, large pore volume, and large average pore size, which significantly improves polymerization activity in olefin polymerization reactions.

The present disclosure provides a preparation method and application of a ruthenium-based nanocluster catalyst and a method for simultaneously coupling conversion of ammonia and carbon dioxide, wherein a magnesium-aluminum hydrotalcite is prepared by a coprecipitation method, the magnesium-aluminum hydrotalcite is dried and sieved, and then first calcination at 800-1200 DEG C is performed to obtain a magnesium-aluminum composite oxide carrier, the magnesium-aluminum composite oxide carrier comprises magnesium oxide and spinel structure magnesium aluminate, an equal-volume impregnation method is used to impregnate the magnesium-aluminum composite oxide carrier into a ruthenium salt solution, and then second calcination at 300-600 DEG C is performed after drying to obtain the ruthenium-based nanocluster catalyst. The ruthenium-based nanocluster catalyst prepared by the method of the present disclosure has a single-atom nanocatalytic structure, the atomically dispersed metal Ru provides a larger metal surface area for catalytic reaction to occur, the preparation process is simple, the purity is high, the selectivity is strong, and the ruthenium-based nanocluster catalyst exhibits strong stability when used for simultaneously coupling conversion of ammonia and carbon dioxide.

The application provides a kind of revivification method of hydrocracking waste catalyst, with hydrocracking waste catalyst as raw material, on the basis of not destroying catalyst forming structure, according to saturated water absorption, different proportion of inorganic acid-organic acid-organic ligand mixed solution is prepared and treated by solvent induced coordination method, the polychaete organic ligand and organic acid in mixed solution are coordinated with dissolved active metal to generate metal-organic complex, re-impregnation process is carried out in micro excess solution, without filtration and avoiding the phenomenon of metal loss caused in drying process, without re-shaping treatment and additional carrier and metal, realizing the recycling of hydrocracking waste catalyst, and effectively improving the hydrocracking reaction performance of catalyst. The application improves resource utilization, simplifies process treatment process, greatly reduces energy consumption, effectively saves cost, realizes the sustainable utilization of waste resources.

The present application relates to the field of new energy technology, in particular to a method for controlling ammonia borane hydrolysis hydrogen release in solid phase system, the solid phase system is AB@metal M / aerogel porous material; the amount of water added to the solid phase system is controlled to control the amount of AB hydrolysis hydrogen release. The AB@metal M / aerogel porous material is: AB is encapsulated in the aerogel porous material loaded with metal catalyst M. The catalyst is loaded on the aerogel porous material, and AB can be encapsulated in these aerogel porous materials due to the certain solid morphology of the aerogel porous material. The amount of water added to the AB@metal M / aerogel porous material is controlled to control the AB hydrolysis hydrogen release process. The method for controlling hydrogen release in the solid phase system can solve the problem that the liquid phase hydrogen release process is difficult to control, and can be applied to vehicle-mounted energy devices, and has the characteristics of convenient vehicle-mounted, simple operation and easy process control.

The application provides a BiOI with iodine defects 1‑x Rod-like material, preparation method and application thereof. Bismuth nitrate pentahydrate and 1,3,5-benzene tricarboxylic acid are added into methanol in proportion, and a metal organic framework [Bi9(C9H3O6)·9(H2O)9] is synthesized by heating at 100-140 DEG C for 20-24 h; the metal organic framework is mixed with ammonium iodide in proportion, and then is subjected to water bath at 60-100 DEG C for 0.5-1.5 h to derive rod-like BiOI; the obtained BiOI is calcined in a muffle furnace at 350-450 DEG C to obtain the rod-like BiOI material with iodine defects, which is represented as BiOI 1‑x . The material has the rod-like microstructure of the precursor [Bi9(C9H3O6)·9(H2O)9], the axial size is slightly reduced, the diameter of the rod is about 1-2 microns, the length is about 3-8 microns, the surface is rough, and the material has a porous structure. The material can be used as a photocatalyst for degradation of gaseous formaldehyde and liquid tetracycline, and both have excellent degradation performance.