2 results about "Mandelonitrile" patented technology

The application discloses a mandelonitrile-degrading bacterium SYY40 and a culture method and application thereof, relates to the technical field of microbial pollution degradation and environmental pollution, and provides the mandelonitrile-degrading bacterium SYY40 which is identified as Pseudomonas sp. SYY40 and named Pseudomonas sp. SYY40, and is preserved in the China General Microbiological Culture Collection Center on May 19, 2025, and the preservation number of the strain is CGMCC NO. 34596. The strain can realize efficient removal of mandelonitrile, and the degradation rate of the mandelonitrile reaches 100% within 48 hours.

The invention provides a method for preparing adiponitrile by using 1, 4-butanediol, which comprises the following steps: under the protection of inert gas, sequentially adding 1, 4-butanediol, sodium borohydride and iodine into a dioxane solution by using an aminopyrrole aluminum lithium bimetallic compound {[C4H3N (AlEt3) (2-CH2NHLitBu)] [C4H3NLi (2-CH2NHtBu)]} 2 as a catalyst, heating to 50 DEG C, stirring to react for 5-6 hours, and filtering to obtain the adiponitrile. And adding mandelonitrile and cesium carbonate, continuously stirring for 5-6 hours, quenching after the reaction is finished, filtering, and concentrating filtrate in vacuum to obtain the target product adiponitrile. The method disclosed by the invention does not need the participation of a highly toxic reagent hydrogen cyanide, is green and environment-friendly, wide in raw material source, low in cost and simple and convenient in post-treatment operation, and has important significance for extending the industrial chain of 1, 4-butanediol and solving the adverse situation of excessive production capacity in China.