2results about How to "Suitable for industrial development" patented technology

The application discloses a synthesis method of xylulose-5-phosphate. The method takes a commercially available compound 1 as a starting material, and obtains the target product xylulose-5-phosphate through seven independent step-by-step reactions. The intermediates are compound 2 to compound 7 in turn. The synthesis method provided by the application is a step-by-step reaction, each reaction is an independent unit, the process parameters are accurately controllable and suitable for industrial operation errors, the side reactions are few, and the product selectivity is high. The method innovatively uses tetrabenzyl pyrophosphate as a phosphorylation reagent, replaces expensive reagents, and reduces the synthesis cost. The reaction condition of the method is mild, the operation is convenient, the crude compound 2 and the crude compound 4 can be directly used in the next step reaction, the post-treatment process is simple, and the route is simple and easy to be industrialized. The synthesis method of xylulose-5-phosphate has stable yield and accurate product structure, is suitable for large-scale industrialized preparation of xylulose-5-phosphate, and can effectively meet the market demand in the field of biological medicines.

This invention belongs to the field of high-temperature structural materials and relates to a method for preparing oxide ceramic matrix composite prepreg. The method involves drying and curing an oxide sol, calcining, grinding, and screening to obtain ceramic powders of different particle sizes. Nanoscale sol, dispersant, and organic solvent are mixed uniformly to prepare a premixed precursor solvent. The powder is added to the premixed precursor solvent, and a thickener and stabilizer are added while stirring to obtain a ceramic suspension. Deionized water is added dropwise, and a pH adjuster is added while stirring. A fiber preform is impregnated in the prepreg slurry, removed, and subjected to hot-pressing semi-curing treatment to obtain the oxide ceramic matrix composite prepreg. This invention features a simple operation process, short preparation cycle, high purity and solid content in the prepreg slurry, good uniformity and stability, good wettability with fibers, and the ability to undergo a reversible gel semi-curing reaction. The resulting prepreg has a long storage period, is easy to transport, and is convenient to shear, allowing for one-step preparation of oxide ceramic matrix composites.