TH4945B - Process for preparing hydrogen peroxide - Google Patents

Abstract

In the extraction process of anthraquinone To prepare hydrogen peroxide, extractable water-doped hydrogen peroxide is formed, containing a small amount of the active solution and the active solution containing the amount of hydrogen. Slightly doped peroxide in the form of a dispersion. For the purification of these solutions The active solution reacts with hydrogen. Water-diluted peroxide, or preferable, is made with water. The extracted hydrogen peroxide reacts with a mixture of organic solvents, quinone solvent. and the diffuse phases are gathered by co-ordinates in separate units. The only preferred method is to add water from 1 to 3% by volume and quinone solvent from 1 to 3 % by volume prior to the co-ordinate step and to use an expanded droplet-structured co-lesser. size and has multiple filter layers The filter layer consists of glass fibers that are reduced in size by heat. This invention purification gives hydrogen peroxide a better carbon content and color number and produces more hydrogen peroxide. and keeping the active solution at a constant relative humidity.

Claims (9)

1. In the preparation of hydrogen peroxide according to the method known as anthraquinone method which extracts dissolved hydrogen peroxide in the solution of the process. In the aqueous extraction stage, the solution of the extraction process with reduced hydrogen peroxide content and aqueous solution obtained from hydrogen peroxide extraction is obtained. And where there is a diluted hydrogen peroxide solution in water dispersed in the above extraction solution and a small amount of the solution of the process is dispersed in the solution obtained from the hydrogen extraction. The said peroxide that needs further purification. An enrichment where a solution of the aforementioned extraction process is combined and mixed with water or aqueous hydrogen peroxide solution or an aqueous solution obtained from hydrogen peroxide extraction. It was combined and mixed with dissolved mixtures consisting mainly of organic solvents, which were stable compared to hydrogen peroxide in water and soluble in water at an amount less than 1% by volume and separated by dispersed cycles. From the mixtures obtained by using coagulants in the separation unit 2. Method according to claim 1, which is performed on both the solution of the extracted process and the aqueous solution obtained from hydrogen peroxide extraction. 3. Method according to claim 1 or item 2 which add water or hydrogen solution The peroxide in water was added to the solution of the extraction process at an amount of 1 - 5% by volume compared to the process solution. 4. Method according to claim 1 or item 2 in which the dissolved mixture is added to the aqueous solution obtained from hydrogen extraction. Peroxide in the amount of 0.5 - 5% by volume compared to the solution obtained from hydrogen extraction. The said peroxide 5. Methods given in claim 1 or No. 2 in which a significant portion of the soluble mixture contains 100% quinone by volume. 6. Method according to claim 1 or item 2, in which 1 - 3% by volume water is added to the solution of the extracted process compared to the volume of the solution of the extraction process. 7. Method according to claim 1 or item 2 in which 1 - 3% by volume dissolving quinone is added to aqueous solution obtained from hydrogen extraction. Peroxide versus the volume of solution obtained from hydrogen peroxide extraction. 8. Method according to claim 1 or No. 2, in which the dissolved mixture consists of an aerobic-gasoline mixture with a boiling range of 180 degrees C - 220 degrees C. 9. Method according to claim 1 or item 2, which uses coalescers, is designed to increase the size of droplets, which has a filter layer made of glass fiber yarn which emits the starch by heating one or more layers. 0.Method according to claim 1 or item 2, which uses coa laser Two units connected in series