2 results about "Aminosugar" patented technology

A method for selectively leaching valuable metals from spent ternary lithium-ion battery cathode materials using an amino sugar eutectic solvent relates to the field of hydrometallurgy, providing an efficient method for extracting valuable metals from spent lithium-ion batteries. The hydrophilic eutectic solvent provided in this application comprises D-glucosamine hydrochloride and betaine hydrochloride. Valuable metals in spent ternary lithium-ion battery cathode materials are leached using the aforementioned eutectic solvent. The eutectic solvent of this application uses inexpensive raw materials, is widely available, and has low preparation costs. The leaching method for valuable metals in spent ternary lithium-ion battery cathode materials of this application can replace traditional pyrometallurgical processes and hydrometallurgical processes using strong acids and alkalis as leaching agents, achieving a green and environmentally friendly goal.

Described herein is a general solution to 1,2-cis-amino-glycoside synthesis through an iron-catalyzed, exclusively 1,2-cis-selective glycal aminoglycosylation via cooperative atom transfer catalysis. Further described is a 1,2-cis-selective glycal aminoacyloxylation method for 2-amino saccharide synthesis. The methods are effective for a wide variety of glycosyl donors with consistently high stereoselectivity and excellent functional-group compatibility, which facilitates late-stage amino group incorporation for complex-carbohydrate and other biologially-related molecule synthesis.