Hydrogen peroxide working solution and its application in preparation of hydrogen peroxide

A technology of working fluid and hydrogen peroxide, applied in the direction of peroxide/peroxy hydrate/peroxyacid/superoxide/ozonide, inorganic chemistry, non-metallic elements, etc., can solve the unpleasant smell of working fluid and poor solubility of solvents High, low oxidation speed and other problems, to achieve the effect of improving hydrogenation efficiency and oxidation efficiency, reducing production cost, and improving oxidation efficiency and hydrogenation efficiency

Active Publication Date: 2014-02-19
WEIFANG MENJIE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a by-product of hydrogenation of anthraquinone, the presence of tetrahydroanthraquinone is of great help to the solubility of anthraquinone, but as long as there is a small amount of this substance, the oxidation rate will be reduced
[0005] During the actual use of the existing hydrogen peroxide working fluid, or the solubility of the solvent is not high, or the oxidation rate is low, or the price is expensive, or the working fluid has an unpleasant smell

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] take C 9 -C 10 700ml of aromatic hydrocarbons, 200ml of trioctyl phosphate, 96ml of 2-methylcyclohexyl acetate, 4ml of trioctylamine are prepared as an organic solvent, add 200g of 2-ethylanthraquinone, dissolve and transfer to a 2L stainless steel with a stirrer and a heating clamp Set of reactor A.

[0023] Add 20g of hydrogen peroxide hydrogenation catalyst containing 0.3% palladium, replace it with inert gas, start stirring, feed hydrogen, heat to a constant temperature of 65°C, adjust the pressure to the reactor pressure of 0.25MPa by venting, stop feeding hydrogen after 30 minutes, And replace it with an inert gas; keep the pressure of the inert gas, pass through a filter, filter out the catalyst, and then move the hydrogenation solution into another 2L stainless steel reactor B with a heating jacket with a stirrer, and take samples to analyze the hydrogenation efficiency.

[0024] Start stirring in the reactor B, heat it to a constant temperature of 47°C, feed ...

Embodiment 2

[0027] take C 9 -C 10 720ml of aromatic hydrocarbons, 190ml of trioctyl phosphate, 84ml of 2-methylcyclohexyl acetate, 6ml of N,N-dimethylaniline were prepared as an organic solvent, and 180g of 2-ethylanthraquinone was added, dissolved and then transferred to a tank with a stirrer. 2L stainless steel reactor A with heating jacket.

[0028] Add 20g of hydrogen peroxide hydrogenation catalyst containing 0.3% palladium, replace it with inert gas, start stirring, feed hydrogen, heat to a constant temperature of 75°C, adjust the pressure to the reactor pressure of 0.35MPa by venting, stop feeding hydrogen after 30 minutes, And replace it with an inert gas; keep the pressure of the inert gas, pass through a filter, filter out the catalyst, and then move the hydrogenation solution into another 2L stainless steel reactor B with a heating jacket with a stirrer, and take samples to analyze the hydrogenation efficiency.

[0029] Start stirring in the reactor B, heat to a constant temp...

Embodiment 3

[0032] take C 9 -C 10 740ml of aromatic hydrocarbons, 193ml of trioctyl phosphate, 60ml of 2-methylcyclohexyl acetate, 7ml of trioctylamine were prepared as an organic solvent, and 150g of 2-ethylanthraquinone was added, dissolved and moved into a 2L stainless steel with a stirrer and a heating clamp Set of reactor A.

[0033] Add 20g of hydrogen peroxide hydrogenation catalyst containing 0.3% palladium, replace it with an inert gas, start stirring, feed hydrogen, heat to a constant temperature of 55°C, adjust the pressure to the reactor pressure of 0.18MPa by venting, stop feeding hydrogen after 30 minutes, And replace it with an inert gas; keep the pressure of the inert gas, pass through a filter, filter out the catalyst, and then move the hydrogenation solution into another 2L stainless steel reactor B with a heating jacket with a stirrer, and take samples to analyze the hydrogenation efficiency.

[0034] Start stirring in the reactor B, heat it to a constant temperature ...

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Abstract

The invention belongs to the technical field of hydrogen peroxide, and especially relates to a hydrogen peroxide working solution and its application in the preparation of hydrogen peroxide. The hydrogen peroxide working solution comprises 2-ethylanthraquinone having a mass concentration of 120-200g / L and an organic solvent, and the organic solvent comprises, by volume, 70-80% of a C9-C10 aromatic hydrocarbon, 14-20% of trioctyl phosphate, 4-10% of 2-methylcyclohexyl acetate and 0.4-0.9% of tertiary amine When the hydrogen peroxide working solution is used in the preparation of hydrogen peroxide, the hydrogen peroxide working solution can greatly improve the hydrogenation efficiency and the oxidation efficiency of 2-ethylanthraquinone, and has the advantages of low production cost, no peculiar smell and product yield improvement.

Description

technical field [0001] The invention belongs to the technical field of hydrogen peroxide preparation, and in particular relates to a hydrogen peroxide working fluid and its application in the preparation of hydrogen peroxide. Background technique [0002] Hydrogen peroxide (H 2 o 2 ), also known as hydrogen peroxide, is an important chemical raw material and has a wide range of applications in many fields such as inorganic or organic synthesis, printing and dyeing bleaching, water treatment, polymer polymerization, and electronic chemicals. At present, the production of hydrogen peroxide mostly adopts the automatic oxidation method of anthraquinone and its anthraquinone derivatives, and anthraquinone and its anthraquinone derivatives need to be dissolved in an appropriate organic solvent to form a working fluid. The working fluid reacts with hydrogen in the presence of a catalyst. Hydrogenated anthraquinone is produced, and then oxidized by air or pure oxygen to obtain hyd...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B15/023
Inventor 刘泉军
Owner WEIFANG MENJIE CHEM
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