Urea hydrogen peroxide disinfectant and preparation method thereof

Abstract

The invention discloses a urea hydrogen peroxide disinfectant and a preparation method thereof. The finished urea hydrogen peroxide disinfectant is prepared by stirring and mixing urine, hydrogen peroxide, trisodium phosphate, salicylic acid and sodium silicate in a certain weight ratio at a certain temperature. The preparation process of the urea hydrogen peroxide disinfectant is simple and convenient; in reaction time, the rise of a reaction temperature can be controlled and the type of the stabilizer can be changed effectively; the crystallization temperature is changed; and the chlorine dioxide can be used for disinfection in various industries such as hospitals, schools, drinking water and the like, the application range is wide and the effect is obvious.

Description

technical field [0001] The invention belongs to the technical field of disinfectants, and in particular relates to a urea peroxide disinfectant and a preparation method thereof. Background technique [0002] Urea peroxide [CO(NH 2 ) 2 .H 2 o 2 ] is a 1:1 adduct formed by combining hydrogen peroxide with urea in a hydrogen bond manner. It is a non-toxic, odorless white crystalline powder, which can Compared with oxides, urea peroxide has the characteristics of broad bactericidal spectrum, strong bactericidal power, low concentration, short disinfection time, and no residual toxicity after disinfection. As a solid oxidant and an oxygen source providing reagent, urea peroxide can be widely used in bleaching, textiles, waste treatment, daily chemical industry, medicine, agriculture, aquaculture and other fields. [0003] At present, the production of urea peroxide generally adopts the wet process of reaction synthesis of hydrogen peroxide and urea. In theory, hydrogen perox...

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Problems solved by technology

[0003] At present, the production of urea peroxide generally adopts the wet process of reaction synthesis of hydrogen peroxide and urea. In theory, hydrogen peroxide and urea can be combined to form solid urea peroxide at a ratio of 1:1 (molar ratio). Solubility and hydrogen peroxide are unstable and easily decomposed, which limits the formulation of urea peroxide production process

Can find wherein 2 main problems by the bibliographical report of current urea peroxide synthesis: (1) after hydrogen peroxide and urea synthesize urea peroxide, the dilute solution recycling problem of the part hydrogen peroxide and urea that still contain in the remaining solution

This is possible for the production of high-concentration hydrogen peroxide as a raw material, but high-concentration hydrogen peroxide is easier to decompose, and the utilization rate of hydrogen peroxide is reduced. For conventional hydrogen peroxide raw materials with a concentration of 35%, the recycling of hydrogen peroxide mother liquor Evaporation and concentration must be carried out, but there is still a lack of theoretical guidance on the relevant phase diagram; (2) because urea peroxide is a high value-added fine product, its production literature reports are more, but the suitable process conditions are different, and it remains to be continued Research