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 (10)

1. In the anthraquinone method of preparing hydrogen peroxide, hydrogen peroxide dissolved in a treatment solution is extracted. The aqueous extraction step yields a treatment solution with a reduced amount of hydrogen peroxide, and an aqueous solution obtained from the hydrogen peroxide extraction. This solution contains diluted hydrogen peroxide dispersed within the extracted treatment solution, while a small amount of the treatment solution remains dispersed within the extracted solution, requiring further purification. This purification process involves combining the extracted treatment solution with water or an aqueous hydrogen peroxide solution, or combining the aqueous hydrogen peroxide extraction solution with a dissolved solvent, primarily an organic solvent stable relative to aqueous hydrogen peroxide and soluble in water to a concentration of less than 1% by volume. The dispersed phase is then separated from the resulting mixture using coagulation agents in the separation unit. 2. The method under claim 1, which is applied to both the solution of the extracted process and the aqueous solution obtained from the extraction of hydrogen peroxide. 3. A method under claim 1 or 2 in which water or an aqueous hydrogen peroxide solution is added to the solution of the extraction method in an amount of 1–5% by volume relative to the solution of the extraction method. 4. A method under claim 1 or 2, which involves adding the dissolved substance to the aqueous solution obtained from hydrogen peroxide extraction in an amount of 0.5 - 5% by volume relative to the aforementioned hydrogen peroxide extraction solution. 5. The method provided in Claim 1 or Claim 2, in which the principal dissolved mixture consists of a substance that is 100% quinone-soluble by volume. 6. A method under claim 1 or 2 in which 1-3% by volume of water is added to the solution of the extracted method relative to the volume of the solution of the extracted method. 7. A method under claim 1 or 2 in which 1–3% by volume of quinone-soluble substance is added to the aqueous solution obtained from hydrogen peroxide extraction, relative to the volume of the hydrogen peroxide extraction solution. 8. The method under claim 1 or 2, in which the dissolved mixture consists of an aromatic gasoline mixture with a boiling point range of 180°C - 220°C. 9. Methods under claim 1 or 2, which use coalescers designed to increase droplet size, involve a single or more heated glass fiber filter layer for starch removal. 10. A method under claim 1 or 2, using two Koala lasers connected in series.