6 results about "Dibenzyl ether" patented technology

The present invention provides a novel flavor enhancer for vanilla flavoring compositions that improves the flavor of a vanilla flavoring composition to a high-quality flavor with a natural, luxurious feel of vanilla and / or a vanilla extract feel; a flavoring composition for vanilla-flavored food and beverages having a high-quality flavor with a natural, luxurious feel of vanilla and / or a vanilla extract feel; and vanilla-flavored food and beverages containing the flavoring composition. [Solution] A flavor enhancer for vanilla flavoring compositions, comprising one or more compounds selected from group A below. (Group A) Ethyl furfuryl ether, benzyl ethyl ether, sec-butyl ethyl ether, prenyl ethyl ether, dibenzyl ether, furfuryl methyl ether, benzyl methyl ether

This utility model discloses a dibenzyl ether synthesis reactor, specifically relating to the field of dibenzyl ether preparation reactor technology. It includes a reactor body, with a limiting mechanism fixedly connected to the upper part of the outer surface of the reactor body. A sealing mechanism is movably connected to the upper part of the outer surface of the reactor body. A servo motor is fixedly installed at the middle position of the upper side of the sealing mechanism. A stirring mechanism is fixedly connected to the lower output end of the servo motor. A venting component is fixedly connected to the upper left side of the sealing mechanism. The dibenzyl ether synthesis reactor of this utility model uses the limiting mechanism to lock and limit the installation position of the sealing mechanism, and the sealing mechanism to seal the upper opening of the reactor body. The venting component allows the gas generated during processing within the reactor body to be discharged, improving the practicality and versatility of the device.

The application provides a method for dissolving and recycling PET, comprising the following steps: 1) mixing the PET to be recycled with a mixed solvent system composed of a good solvent and a di-arylether under the protection of an inert atmosphere, stirring and dissolving under a first temperature condition to obtain a first material; the good solvent is propylene carbonate and / or ethylene carbonate; the di-arylether is at least one of diphenyl ether, butyl phenyl ether and dibenzyl ether; the first temperature is 160-200 DEG C; 2) cooling the first material to a second temperature, adding anti-solvent water to precipitate and separate out the PET; 3) separating, washing and drying the material obtained in the step 2) to obtain the recycled PET. The method for dissolving and recycling PET has the whole process in line with the green development route, effectively avoids the problem of degradation of the PET under high temperature dissolving, and the performance of the recycled PET is comparable to that of the raw material. Meanwhile, the PET yield can be as high as 97%, and the method has important large-scale industrial application value.

The invention provides an InAs nanowire and a preparation method and application thereof.The preparation method comprises the steps that organic acid and octadecene are mixed, heated and kept for a period of time, and a mixed solution A is obtained; mixing an indium source, an arsenic source and dibenzyl ether, and continuously mixing with the mixed solution A to obtain a mixed solution B; heating the mixed solution B, and adding oleylamine to obtain a mixed solution C; and heating the mixed solution C, and reacting to obtain the InAs nanowire. According to the method, the InAs nanowire with good crystallinity, good photoelectric property and a bending structure is successfully synthesized by using a colloid method under the condition of not introducing an exogenous metal catalyst for the first time, the reaction operation is simple, and the reaction temperature is far lower than that of a traditional gas phase synthesis method. The invention also successfully constructs a high-response photoelectric detector based on the InAs nanowire material, and the device is simple in structure and good in performance, and has excellent response in visible light and near-infrared bands.

The invention provides a method for dissolving and recovering PET (polyethylene terephthalate), which comprises the following steps: 1) under the protection of inert atmosphere, mixing PET to be recovered with a mixed solvent system consisting of a good solvent and diaryl ether, and stirring and dissolving under a first temperature condition to obtain a first material; the good solvent is propylene carbonate and / or ethylene carbonate; the diaryl ether is at least one of diphenyl ether, butyl phenyl ether and dibenzyl ether; the first temperature is 160-200 DEG C; 2) cooling the first material to a second temperature, and adding anti-solvent water to precipitate PET; (3) separating, washing and drying the material obtained in the step (2) to obtain the recycled PET. The whole process of the method for dissolving and recycling the PET accords with a green development route, the problem of high-temperature dissolution and degradation of the PET is effectively avoided, the performance of the recycled PET can be comparable with that of the raw material, meanwhile, the yield of the PET can reach 97%, and the method has important large-scale industrial application value.

The application belongs to the technical field of biomedical materials, and discloses a molecular probe for detecting old chronic atrophic gastritis and application, wherein the molecular probe is a magnetic-optical dual-mode composite nanoparticle coupled with Mcemp1; a preparation method of the molecular probe comprises the following steps: Fe3O4@OA solution is prepared by taking acetylacetone iron, oleylamine and dibenzyl ether as raw materials; after being modified by SPE-PEG2000-NH2 polymer, the magnetic core Fe3O4-PEG-NH2 NPs are obtained through purification; after the magnetic core is coupled with Mcemp1 and purification, the Fe3O4-PEG-Mcemp1 NPs are obtained; then, near-infrared fluorescent dye ICG is labeled, and the magnetic-optical dual-mode composite nanoparticle coupled with Mcemp1 is obtained after dialysis. The application realizes non-invasive continuous monitoring by intravenous administration of the magnetic particle probe, combines the dual-mode technology, quantifies the density of the gland in real time, dynamically tracks the gastric mucosa, solves the problems of insufficient penetration depth of the fluorescent probe and low quantitative precision, and fills the technical gap of dynamic evaluation and cancer warning.