Application of sodium peroxide mixing solution containing sodium ozonide in preparing paper pulp

Abstract

A sodium peroxide with ozonide applies into the producing of paper pulp. The pretreatment straw mixed with the sodium peroxide with ozonide, and it cooks at the pressure of 1-200kpa to get the wheat or white paper pulp. Comparing to the current technology, it has the advantage as fellow, 1. The volume of the alkali reduces 4-5times than the traditional technology, and the waste water can directly use. 2. The JHO3 has the bleach function at the same time, and there is no need chlorine and the chloric derivatives as the bleach agent. 3. The cooking pressure reduces 4-5 times than the traditional technology, and it can reduce the consumption of the energy and the investment of the equipment. 4. The cooking time reduces 1-3 times can improve the efficiency of wording and the ratio of equipment usage. 5. The output of fibre can improve 3-5 percent, and it can reduce the cost and improve the ratio of source.6. The waste water can be as the organic complex fertilizer.

Description

technical field [0001] The invention relates to the application of a sodium peroxide mixed solution containing sodium ozonide in pulp preparation. Background technique [0002] Straw is the largest and most widely distributed agricultural leftover, one of the main sources of rural environmental pollution, and also a renewable resource. For a long time, people have been constantly trying to use it, turn harm into benefit, and turn waste into treasure. Making paper with straw is exactly one of the important ways to make full use of resources. At present, papermaking from straw mainly adopts the traditional caustic soda method for pulping. The disadvantages of the process are: (1) The waste water produced has a relatively high content of caustic soda and organic matter, which pollutes the environment and requires more investment in pollution control. It takes about 500 yuan to process the waste water produced by producing one ton of pulp. Some enterprises, especially small a...

AI Technical Summary

Problems solved by technology

At present, papermaking from straw mainly adopts the traditional caustic soda method for pulping. The disadvantages of the process are: (1) The waste water produced has a relatively high content of caustic soda and organic matter, which pollutes the environment and requires more investment in pollution control.

Some enterprises, especially small and medium-sized papermaking enterprises, often discharge waste water without treatment in order to obtain the maximum profit. They are one of the "five small" enterprises banned by the state; The energy consumption is high, and the requirements for heat resistance, pressure resistance and corrosion resistance of cooking equipment are high; (3) the removal of lignin, sugar and dissociation and bleaching of cellulose are completed by multiple processes respectively, and the production process is relatively complicated, which further aggravates the pollution of water bodies