3 results about "Cyclohexene" patented technology

This invention belongs to the field of heterogeneous catalyst technology. It provides a single-atom nitrogen-doped carbon catalyst, its preparation, and its application. Ammonium metavanadate is dissolved in hot water, melamine is added to the resulting solution, and the mixture is stirred until the water evaporates to obtain a powder. The powder is collected, ground to a particle size of less than or equal to 50 micrometers, and calcined to obtain a nitrogen-doped carbon material (VN@NC support). The nitrogen-doped carbon material is weighed and dispersed in methanol and / or an aqueous solution, a metal salt aqueous solution is added, and the dispersion is stirred at room temperature and then centrifuged and dried. The resulting solid is pyrolyzed for 1-5 hours to obtain the single-atom nitrogen-doped carbon catalyst. This invention solves the problems of unsafe storage and transportation of peroxides and low reaction selectivity in organic peroxide oxidation methods. This catalyst exhibits high activity, high selectivity, and good stability, and can be used for efficient catalysis of cyclohexene epoxidation to prepare cyclohexane oxide under mild reaction conditions.

This invention provides a cyclohexene glycoside-based fertilizer for increasing crop yield and efficiency, its preparation method, and its application. The method first prepares an aqueous solution of the cyclohexene glycoside substrate, and then prepares a nutrient matrix consisting of at least two of nitrogen, phosphorus, and potassium components mixed with an organic carrier. Next, nutrient-converting functional bacteria and cyclohexene glycoside-activating functional bacteria are separately cultured and then compounded to form a synthetic bacterial agent with specific β-glucosidase activity and an effective viable count. The cyclohexene glycoside substrate is then loaded onto diatomaceous earth particles with high open porosity to obtain a stabilized carrier. Subsequently, the carrier, nutrient matrix, and synthetic bacterial agent are mixed, and granulated under the condition of adding a binder to obtain wet granules. Finally, the granules are dried at low temperature in two stages until the moisture content is ≤8 wt%, and then granulated to obtain the finished fertilizer. This fertilizer integrates the active components of cyclohexene glycosides, compound nutrients, and functional microorganisms, which can synergistically promote crop growth and nutrient utilization, and is suitable for a variety of crops, achieving increased yield and efficiency.

This invention discloses an energy-saving and consumption-reducing process for the aqueous production of cyclohexanol, characterized by the following steps: 1) The oil phase product discharged from the reactor is first flash-evaporated; 2) The flash-evaporated vapor phase enters the cyclohexanol separation tower, and the liquid phase after flash evaporation enters the filtration equipment; 3) The filtered clear liquid enters the cyclohexanol separation tower, and the catalyst particles are discharged from the filtration equipment. The advantages of this invention are: eliminating the safety hazards caused by flash evaporation of the feed liquid in the cyclohexanol separation tower; reducing the flow rate entering the filtration equipment after flash evaporation, thus reducing the investment in the required filter equipment; and allowing for secondary liquid-liquid separation within the flash evaporation equipment, reducing the amount of water entering the cyclohexanol separation tower and lowering its energy consumption.