2 results about "Pyridine hydrochloride" patented technology

The application discloses an MXene aerogel diaphragm and a preparation process thereof, and belongs to the technical field of lithium battery diaphragms. The MXene aerogel diaphragm disclosed by the application contains the following components in parts by weight: 100 parts of modified carboxymethyl cellulose, 5-15 parts of MXene nanosheets, 20-30 parts of a crosslinking agent, 0.1-100 parts of a pH regulator, and 10000-20000 parts of a solvent. The modified carboxymethyl cellulose is prepared by first subjecting sodium carboxymethyl cellulose to a nucleophilic ring-opening reaction with glycidyl methacrylate to obtain GMA-CMC, and then subjecting the GMA-CMC to a Michael addition with 2-amino-4-(trifluoromethyl) pyridine hydrochloride. The MXene aerogel diaphragm disclosed by the application has excellent structural stability, high ionic conductivity and good thermal stability.

This invention discloses a bispyridyl extractant, its preparation method, and its application as a nickel-cobalt extractant. The bispyridyl extractant has the following structure: wherein R is C 12 ~C 25 The alkyl group is prepared by reacting chloromethylpyridine hydrochloride with a primary amine compound via a bimolecular nucleophilic substitution reaction. This bispyridine extractant has stable physicochemical properties, large saturation capacity, good oil solubility of the extract, and good coordination complexing ability for nickel (cobalt) ions. It can be used in combination with DNNSA or P204 to form a synergistic extraction system for selective extraction and separation of nickel and cobalt in complex metal ion solution systems. It can also be used as a single extraction system for efficient extraction and separation of nickel and cobalt in hydrochloric acid systems, showing good prospects for industrial application.