waste paper deinking agent
detail
Z-12a deinking agent for waste paper is made of a variety of non-ionic surfactants and anionic surfactants. It is in liquid state and has excellent emulsifying, dispersing, trapping and retrograding effects on ink under appropriate temperature and mechanical action. It has good deinking effect on book paper and newsprint. Suitable for washing and flotation deinking.
1、 Technical index
1. Appearance: light yellow liquid;
2. PH value: 3.5 ± 1;
3. Solid content: 39 ± 2%.
2、 Process conditions:
1. Dosage of deinking agent: 0.2 ~ 0.3%
2. Dosage of sodium hydroxide (more than 95%) 2 ~ 3%
3. Pulping temperature: ≥ 90 ℃
4. Pulp deinking time: 40 ~ 50 minutes
5. Pulp consistency: ≥ 12%
3、 How to use it
First, add 1 / 3 of the amount of water used for pulping into the high consistency pulper, heat up with steam, add waste paper and water at the same time, raise the temperature to 90 ℃, add caustic soda and deinking agent, and finally close the cover, pulping for 40 ~ 50 minutes. Depending on the situation of waste paper, the amount of deinking agent and pulping time can be adjusted appropriately. In order to inhibit the alkaline yellowing of pulp, appropriate amount of hydrogen peroxide (30% hydrogen peroxide) can be added In order to inhibit the decomposition of hydrogen peroxide, chelating agent (such as EDTA or DTPA) equivalent to 0.2% of the absolute dry pulp can be added according to the quality of water. Water glass can also be added (the recommended dosage is 41 ° be water glass: 1.0% - 3.0%). Water glass can be added 15 minutes before hydrogen peroxide.
4、 Packaging and storage:
This product is packed in 200kg or 50kg plastic packaging barrel, without inflammable and explosive hazards, and belongs to non dangerous goods. The storage period is one year and the storage temperature is 0 ~ 30 ℃.
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