Water-based composite deinking agent

Abstract

The invention provides a water-based compound deinking agent which has the following components based on weight percentage: 0.1-3% of alkyl poly propylene fatty alcohol polyoxyethylene ether phosphate, 0.1-5% of alkyl alcohol polyoxyethylene ether sulfate, 1-5% of NaOH, 2-8% of NaSiO3, 0.5-5% of H2O2, 0.5-8% of anti-ink deposition agent, and the remaining amount of water. The water-based compound deinking agent of the invention has the advantages that the invention has good emulsification, dispersion and catching performances and can reduce the re-deposition of printing ink particles in the deinking process, improve the pulp brightness, reduce the residual ink particles and improve the deinking effect so as to achieve high-efficient and environmental-friendly recycling of waste newspapers.

Description

technical field

[0001] The invention relates to a deinking agent for paper deinking. Background of the invention

[0002] Waste paper recycling has become an important material source of paper and pulp in my country. Recycling waste paper as secondary fiber can effectively protect forest resources, reduce environmental pollution, reduce papermaking costs and improve the international competitiveness of the papermaking industry. According to statistics, in 2005, the total output of paper and cardboard in my country reached 52.1 million tons, and the total consumption was 54.7 million tons, an increase of 13.76% and 10.94% respectively compared with 2004, accounting for about 10% and 14% of the world's total respectively, ranking first in the world. Second, second only to the United States. And my country is a country that is extremely short of wood fiber raw materials, the forest coverage rate is only 13.2%, while the world's average forest coverage rate is 31%, and my count...

Images