Pulping and papermaking assistant

Abstract

The invention discloses a pulping and papermaking assistant which consists of the following components (based on dose of every ton of dry raw materials): 10-110 kg of strong-basicity substances, 50-500 kg of peroxides and solid polyatomic acid, dose of which is 0.1%-1.5% that of the peroxides, wherein the strong-basicity substances are sodium hydroxide or potassium hydroxide or calcium hydroxide or magnesium hydroxide or a mixture thereof; and the peroxides are hydrogen peroxide or sodium peroxide or potassium peroxide or a mixture thereof. The pulping and papermaking assistant has the beneficial effects that: the papermaking assistant is adopted to realize the purpose of increasing pulping speed by pre-soaking and realize a pulping process under a normal-temperature normal-pressure state, facilitates dissociation of fibers to facilitate pulping, reduces a efficiency ratio and reduces environmental influences, on process water, of dissolution substances to facilitate increasing the yield; and meanwhile, pollution on environment is reduced, using efficiency of raw materials is improved and energy consumption is reduced.

Description

technical field [0001] The invention relates to the technical field of pulping and papermaking, in particular to a pulping and papermaking auxiliary agent. Background technique [0002] The traditional papermaking straw pulp production process generally adopts alkaline chemical pulping. The treatment of straw pulp black liquor produced by this method is the focus of environmental protection work. The treatment technology of straw pulp black liquor has become a recognized problem in the world. The recognized treatment The best way for wheat straw pulp black liquor is alkali recovery, but due to disadvantages such as poor water filtration performance of wheat straw pulp, high viscosity of black liquor, high silicon content, etc., the alkali recovery technology is extremely difficult. For small or even medium-sized enterprises However, due to the large investment and high operating costs for environmental pollution control, it is almost impossible to make paper with wheat straw...

AI Technical Summary

Problems solved by technology

The discharged black waste liquid contains a large amount of pollutants, which is the most serious water pollution

[0003] At the same time, because most of the existing methods adopt the method of steaming balls to cook raw materials, the production under normal temperature and pressure cannot be realized, the energy consumption of the whole production process is large, and the output ratio is small, which cannot meet the requirements of existing intensive production; Although some studies have shown that some people have begun to use the rubbing method to make straw plants into pulp, but because all of them need to be heated and pressurized in the pre-treatment, it is still not possible to process the materials at room temperature, so The ratio of energy consumption and output is still not satisfactory