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2 results about "Anthraquinone process" patented technology
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The anthraquinone process is a process for the production of hydrogen peroxide, which was developed by BASF. The industrial production of hydrogen peroxide is based on the reduction of oxygen, as in the direct synthesis from the elements. Instead of hydrogen itself, however, a 2-alkyl-anthrahydroquinone, which is generated before from the corresponding 2-alkyl-anthraquinone by catalytic hydrogenation with palladium. Oxygen and the organic phase react under formation of the anthraquinone and hydrogen peroxide. Among other alkyl groups (R) ethyl- and tert. Butyl are used, e.g., 2-ethylanthraquinone.
High-efficiency condensing separation equipment for anthraquinone hydrogen peroxide production
The application discloses a kind of high-efficiency condensing separation equipment for anthraquinone hydrogen peroxide production, anthraquinone hydrogen peroxide technical field, including: pipe box section and separation section, pipe box section is equipped with symmetrically arranged upper tube sheet and lower tube sheet, baffles are arranged staggeredly between upper tube sheet and lower tube sheet, a plurality of vertically arranged heat transfer tube bundles are inserted between baffle, heat transfer tube bundle is located in the separation section and is sleeved with back cooling section, both sides of back cooling section are respectively communicated with pipe box section, one side of pipe box section is equipped with cold flow inlet, and the other side of pipe box section is equipped with cold flow outlet, cooling medium flows into pipe box section through cold flow inlet, one way along baffle and passes through cold flow outlet, another way along back cooling section recondenses heat transfer tube bundle and converges with one way along baffle and passes through cold flow outlet.This application has high condensing efficiency and good condensing effect, improves the use efficiency of equipment and increases the operating efficiency of heat exchange, improves the reliability of equipment, and increases the production performance.
Owner:YANGZHOU RONGXIANG TECH DEV CO LTD
Preparation method of an ionic cof catalyst and application of the ionic cof catalyst in photocatalytic production of hydrogen peroxide
The application discloses an ionic COF catalyst, a preparation method thereof and application of the catalyst in photocatalytic production of hydrogen peroxide. The catalyst is prepared from 2,4,6-triformylphloroglucinol and a phenanthridine monomer containing a double amino group through Schiff base condensation reaction under catalysis of acetic acid in a mixed solvent, and has an ionic covalent organic framework structure connected with beta-ketoenamine. The catalyst prepared by the application has irregular sheet-like agglomeration, a layered porous structure, a high specific surface area and a controllable ionic microenvironment, and can simultaneously strengthen oxygen adsorption activation and photogenerated carrier separation efficiency. When the catalyst is applied to photocatalytic production of hydrogen peroxide, efficient production of hydrogen peroxide can be realized under the conditions of pure water, visible light and no sacrificial agent, and the yield can reach 457 μM h ‑1 The application provides a green, mild and sustainable new solution to solve the problems of high energy consumption and high pollution of the traditional anthraquinone method and the bottleneck problem of the existing COF photocatalytic performance.
Owner:CHINA THREE GORGES UNIV