Hydrogen peroxide low-temperature bleaching catalyst, as well as preparation method and application thereof

Abstract

The invention discloses a hydrogen peroxide low-temperature bleaching catalyst, as well as a preparation method and application thereof. The catalyst is formed by mixing organic amine solution and copper sulfate solution, wherein the mass ratio of organic amine solution and copper sulfate solution in mixed solution is (0.1-50):(0.1-10), and the catalyst is mainly applied as a refining agent. The preparation method of the catalyst comprises the following steps: adding water into a container according to a mass ratio and then adding copper sulfate, so as to obtain the copper sulfate solution until the copper sulfate is completely dissolved; next, adding an organic amine compound according to a mass ratio, filtering and packaging, so as to obtain the catalyst disclosed by the invention. The catalyst disclosed by the invention has the characteristics of the cost is low, the catalyst has no toxicity and is environmentally friendly and biodegradable, and the preparation method is simple.

Description

technical field [0001] The invention relates to the technical field of catalysts, in particular to a hydrogen peroxide low-temperature bleaching catalyst and its preparation method and application. Background technique [0002] The pretreatment of cotton and its blended fabrics is the basic process in the dyeing and finishing production process. Its main purpose is to remove various impurities on the fabric, improve the wetting performance of the fabric, and improve the whiteness of the fabric. Printing, etc.) to provide satisfactory semi-finished products as the main task. However, the pretreatment process in the dyeing and finishing process consumes a lot of energy. The main reason is that the bleaching of cotton knitted fabrics is usually carried out under high temperature conditions, which has the disadvantages of high energy consumption, large fabric strength damage, excessive degreasing and rough hand feeling. Therefore, it is of great significance to study the hydro...

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Problems solved by technology

These activators also have many disadvantages in application, such as complex synthesis and high cost, and the overall cost is not lower than traditional pretreatment methods; for example, the bleaching effect of using low-temperature catalysts is not obvious, so at present, cotton fabrics are bleached with hydrogen peroxide at low temperature and low alkali There is no large-scale application in actual production