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Preparation method of biomass-based deinking agent

A technology based on deinking agent and biomass is applied in the field of preparation based on biomass-based deinking agent, which can solve the problems of low pulping yield of waste paper, low product quality and large water consumption.

Inactive Publication Date: 2014-04-30
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the deinking agent cannot meet the needs of different waste paper pulping and deinking processes of various waste papers. The water consumption in the pulping and deinking process is large, the waste paper pulping rate is low, and the quality of the produced products is low.

Method used

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  • Preparation method of biomass-based deinking agent
  • Preparation method of biomass-based deinking agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A preparation method based on biomass-based deinking agent, comprising the following steps:

[0027] Weigh the sodium hydroxide solid and slowly dissolve it in water under stirring to make a sodium hydroxide aqueous solution with a mass percentage concentration of 20wt%. Add 5g sodium laurate particles to the sodium hydroxide aqueous solution. The mass ratio of the solution is 5:100; stir to obtain a uniform mixed solution, then add 2.5g of zinc oxide particles to the mixed solution, stir continuously, and add edible rapeseed oil 50 times the quality of sodium laurate to the system after mixing evenly , raise the temperature to 85°C at a heating rate of 1°C / min, and at the same time turn on the condensed water to cool the solution in the reflux reaction system and keep the temperature. After 10 hours of reaction, remove the product while it is hot and put it into a wide-mouthed container. After cooling, After being pulverized by a high-speed pulverizer, an anionic bioma...

Embodiment 2

[0029] The preparation method based on biomass-based deinking agent as described in Example 1, the difference is that,

[0030] After mixing evenly, add palm oil of 55 times the quality of sodium laurate to the system, and raise the temperature to 90°C at a heating rate of 1°C / min to obtain an anionic biomass-based deinking agent, which is obtained in this example by whiteness meter detection The value-added whiteness of the deinking agent is 4.8, and the ink removal rate can reach 46%.

Embodiment 3

[0032] The preparation method based on biomass-based deinking agent as described in Example 1, the difference is that,

[0033] After mixing evenly, add capric acid with 52 times the mass of sodium laurate to the system, and raise the temperature to 95°C at a heating rate of 1°C / min to obtain an anionic biomass-based deinking agent, which is obtained in this example by whiteness meter detection The value-added whiteness of the deinking agent is 3.6, and the ink removal rate can reach 45%.

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Abstract

The invention relates to a preparation method of a biomass-based deinking agent. The preparation method comprises the following steps: sodium laurate is dissolved in a sodium hydroxide solution to prepare an evenly mixed solution; then ZnO particles are added in the prepared mixed solution; the adding quantity of the ZnO is 1 / 2-1 / 3 of the mass of lauric acid; finally, biomass raw materials are added, the mixture is heated to 85-95 DEG C and reacts for 10-18 h to obtain the biomass-based deinking agent. The preparation method uses natural and reproduceable biological resources as the raw materials to develop environment-friendly function materials and an auxiliary agent with high efficiency, energy conservation and low pollution, realizes the chemical replacement of key industrial additives, and achieves biological degradation and environmental protection. The biomass-based deinking agent is used as a high-efficiency deinking agent so as to achieve the purposes of energy conservation and emission reduction.

Description

technical field [0001] The invention relates to a preparation method of a deinking agent, in particular to a preparation method of a biomass-based deinking agent. Background technique [0002] my country's paper industry has outstanding problems in terms of "resources and the environment", and it is a key industry for energy conservation and emission reduction. In 2009, the discharge of wastewater from the papermaking industry was 3.926 billion tons, and the chemical oxygen demand (COD) in the discharged wastewater was 1.097 million tons, accounting for 28.94% of the total industrial COD discharge in the country. Therefore, under the background that the pulp and paper industry has become the basic raw material industry of the national economy and is developing rapidly, it is urgent to research and develop an integrated water-saving, energy-saving and clean production technology system suitable for the characteristics of my country's paper industry. [0003] In the paper ind...

Claims

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Application Information

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IPC IPC(8): C09D9/04
Inventor 郑利强高和军史利娟杨轶鲁飞高新培
Owner SHANDONG UNIV
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