3 results about "Naproxenum" patented technology

This invention relates to the fields of environmental and chemical technology, specifically to a nitrogen-modified activated carbon adsorbent material, its preparation method, and its applications. The invention employs an ammonium chloride solution impregnation method combined with high-temperature activation under a nitrogen inert atmosphere to modify the surface of pretreated granular activated carbon, increasing the content of basic groups on the activated carbon surface, thus preparing a nitrogen-modified activated carbon adsorbent material. Experimental results show that the prepared nitrogen-modified activated carbon exhibits high adsorption efficiency for carboxylic acid drug pollutants such as naproxen, ibuprofen, and diclofenac. The preparation conditions of this invention are mild, the operation steps are simple, the required reagents are inexpensive, and the safety is relatively high, making it suitable for the treatment of drinking water, sewage, and medical wastewater.

This invention discloses a chiral covalent organic framework composite membrane prepared by in-situ growth and its applications. This invention uses [NALC] as a reference. X -TAPB-DVA COF S As a functionalized material, a chiral covalent organic framework composite membrane was prepared by a secondary in-situ growth method using terephthalaldehyde (PAD) as the linker and 1,3,5-tris(4-aminophenyl)benzene (TAPB) as the nucleation site. This chiral covalent organic framework composite membrane can resolve enantiomers of mandelic acid, warfarin, naproxen, and ibuprofen, exhibiting a wide resolution range and stable resolution performance.

This invention discloses a method for preparing a cyclodextrin-ammonium acetate-naproxen ternary inclusion complex, comprising the following steps: mixing β-cyclodextrin, naproxen, and ammonium acetate in a molar ratio of 0.8-1.3:0.9-1.1:0.8-2.5 with a solvent; stirring the resulting mixture at 35-45°C for 0.5-2 hours; and then removing the solvent by evaporation, standing, and freeze-drying to obtain the ternary complex. This invention prepares a ternary inclusion complex using β-cyclodextrin, naproxen, and ammonium acetate, which significantly improves drug stability and water solubility, thus helping to enhance the bioavailability of naproxen and expand its application areas.