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Deinking agent adopting drainage oil as main raw material and preparation method of deinking agent

A technology of the main raw material, waste oil, applied in the direction of chemical paint/ink remover, coating, etc., can solve the problems of oily odor, harmfulness, and human poisoning, so as to reduce the harm to the environment and human body, reduce production costs, The effect of simple preparation process

Inactive Publication Date: 2013-11-13
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Oxidation products can cause an unpleasant smell to the oil, and more importantly, oxidation products can have adverse effects on human health
On the other hand, waste cooking oil is usually poured into hog water, which is rich in nutrients and bacteria multiply, and most of the substances produced by bacterial metabolism are poisonous and harmful to the human body.
Therefore, gutter oil can no longer be used as edible oil for secondary consumption

Method used

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  • Deinking agent adopting drainage oil as main raw material and preparation method of deinking agent
  • Deinking agent adopting drainage oil as main raw material and preparation method of deinking agent
  • Deinking agent adopting drainage oil as main raw material and preparation method of deinking agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Put 500g waste oil and 250g water into the reaction kettle, heat to 80°C, then add 30gNaCl to the reaction kettle, continue to stir at 80°C for 0.5h, let stand after the treatment, separate the oil and water, take Upper oil layer, obtains crude waste oil;

[0027] (2) Add 400 g of crude waste oil into the reaction kettle, heat to 95° C., then add 5 g of activated carbon, and stir at 95° C. for 1 hour; perform suction filtration after the treatment to remove solid matter, and obtain refined waste oil;

[0028] (3) Add 100g of refined waste oil, 10g of stearic acid, 15g of oleic acid, and 25g of palmitic acid into the reactor, heat to 85°C to obtain a mixture of waste oil and fatty acid, then add 50g of water; Add 250ml of 10% NaOH solution for saponification reaction at a rate of 15ml / min; after the addition is complete, stir and keep warm at 85°C for 1 hour; then add 10g of penetrant AEO-9 and 50g of diatomaceous earth, and stir evenly;

[0029] (3) Add 100g of ref...

Embodiment 2

[0032] (1) Put 500g waste oil and 450g water into the reaction kettle, heat to 50°C, then add 25gNaCl to the reaction kettle, continue stirring at 50°C for 1.5h, let it stand after the treatment, separate the oil and water, and take Upper oil layer, obtains crude waste oil;

[0033] (2) Add 400 g of crude waste oil into the reaction kettle, heat to 80° C., then add 10 g of activated carbon, and stir for 2 hours at 80° C.; after the treatment, perform suction filtration to remove solid matter to obtain refined waste oil;

[0034] (3) Add 100g of refined waste oil, 5g of stearic acid, 20g of oleic acid, and 30g of palmitic acid into the reactor, heat to 70°C to obtain a mixture of waste oil and fatty acid, then add 80g of water; Add 300ml of 10% KOH solution for saponification reaction at a rate of 20ml / min; after the addition is complete, stir at 70°C and keep warm for 0.5h; then add 20g of emulsifier OP-10 and 60g of palygorskite, and stir evenly;

[0035] (4) The product obt...

Embodiment 3

[0037] (1) Add 500g waste oil and 300g water into the reaction kettle, heat to 65°C, then add 50gNaCl to the reaction kettle, continue to stir at 65°C for 1h, let it stand after the treatment, separate the oil and water, and take the upper layer oil layer, to obtain crude waste oil;

[0038] (2) Put 400g of crude waste oil into the reaction kettle, heat to 85°C, then add 15g of activated carbon, and stir at 85°C for 1.5h; after the treatment, carry out suction filtration to remove solid matter to obtain refined waste oil ;

[0039] (3) Add 100g of refined waste oil, 10g of stearic acid, 10g of oleic acid, and 30g of palmitic acid into the reactor, heat to 80°C to obtain a mixture of waste oil and fatty acid, then add 85g of water; Add 225ml 10% Na 2 CO 3 The solution undergoes saponification reaction, and the dropping rate is 15ml / min; after the dropwise addition, stir and keep warm at 80°C for 1 hour; then add 15g of penetrant AEO-9 and 45g of bentonite, and stir evenly; ...

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Abstract

The invention provides a deinking agent adopting drainage oil as a main raw material and a preparation method of the deinking agent. The preparation method of the deinking agent comprises the steps such as pretreatment, saponification, mixing and forming of the drainage oil. The post-processed drainage oil is mixed and dissolved with stearic acid, oleic acid and hexadecanoic acid to perform saponification reaction, then penetrating agent or emulsifier and inorganic mineral clay are added, and the mixture is extruded, formed and cooled to obtain the deinkinge agent. Due to the adoption of the method, the environmental pollution caused by the drainage oil can be reduced, and harm on the health of people caused by secondary eating of the drainage oil can be avoided; and at the same time, the method is low in production cost, the product has a good deinking effect, has an obvious effect on the secondary fibers with high ink content such as old news paper (ONP), old books and old magazines, and has a good application prospect.

Description

technical field [0001] The invention relates to a papermaking chemical deinking agent, in particular to a deinking agent with waste oil as the main raw material and a preparation method thereof. Background technique [0002] Waste oil generally refers to all kinds of low-quality oils that exist in daily life, such as recycled cooking oil, repeatedly used frying oil, etc. It is also called "waste cooking oil" or "soil oil". [0003] The basic chemical structure of edible oil is triglyceride, that is, three fatty acid molecules are connected to one glycerol molecule; fatty acids are divided into saturated fatty acids and unsaturated fatty acids. Unsaturated fatty acids contain unsaturated chemical bonds and are prone to changes, especially oxidation by oxygen in the air. The higher the temperature, the higher the rate of this oxidation. During the cooking process, fat will be heated to a very high temperature, so if the cooking oil for frying is used for too long, the conten...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D9/04
Inventor 武书彬赵媛媛李擘毛翠平
Owner SOUTH CHINA UNIV OF TECH