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Preparation method of pressure-resistant anti-high temperature oil-water separation filter paper

A technology of oil-water separation and high temperature resistance, applied in separation methods, filter paper, filtration and separation, etc., can solve the problems of easy softening of fibers, insufficient pressure resistance of oil-water separation filter paper, etc., to reduce brittleness, excellent oil-water separation effect, and improve burst resistance. The effect of strength and tensile strength

Inactive Publication Date: 2018-12-04
FOSHAN GAOMING DISTRICT ZHUAHE NEW MATERIAL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem mainly solved by the present invention is that the current oil-water separation filter paper is usually a kind of paper filter layer made of ordinary wood pulp as the main component. When separation or high-temperature water-oil-steam separation, the prepared oil-water separation filter paper has insufficient compression resistance, and the fiber is easy to soften and pyrolyze under high temperature conditions. A preparation method for pressure-resistant and high-temperature oil-water separation filter paper is provided.

Method used

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  • Preparation method of pressure-resistant anti-high temperature oil-water separation filter paper

Examples

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Effect test

example 1

[0026] Add distilled water to the 3mm alkali-free ultrafine glass fiber to make a glass fiber suspension with a solid mass content of 20%, then add 98% concentrated sulfuric acid, adjust the pH to 3.5, stir and disperse to obtain a suspension. The bleached softwood pulp with a mass content of 20% is put into a hydraulic pulper to disintegrate, and then stirred by a beating machine to control the beating degree at 40°SR to obtain a beating liquid. The beating liquid and the glass fiber suspension are in volume ratio 3:1 mix, add anionic polyacrylamide, continue to stir to obtain a pulp suspension, which is ready for use, in which the mass of anionic polyacrylamide accounts for 0.6% of the pulp suspension; in parts by weight, disperse 2 parts of nano titanium dioxide in 20 parts of distilled water After stirring and heating in a water bath to 60°C, add ferroferric oxide colloid with a solid mass content of 30%. After the dropwise addition is completed, stir at 350r / min for 1.0h, a...

example 2

[0028] Add distilled water to the 4mm alkali-free ultrafine glass fiber to make a glass fiber suspension with a solid mass content of 20%, then add 98% concentrated sulfuric acid, adjust the pH to 3.7, stir and disperse to obtain a suspension. The bleached softwood pulp with a mass content of 20% is put into a hydraulic pulper to disintegrate, and then stirred by a beating machine to control the beating degree at 43°SR to obtain a beating liquid. The beating liquid and the glass fiber suspension are in volume ratio 3:1 mix, add anionic polyacrylamide, continue to stir to obtain a pulp suspension, which is ready for use, where the mass of anionic polyacrylamide accounts for 0.7% of the pulp suspension; in parts by weight, disperse 2 parts of nano titanium dioxide in 23 parts of distilled water After stirring and heating in a water bath to 63°C, add ferroferric oxide colloid with a solid mass content of 30%. After the addition is complete, stir at 380r / min for 1.3h, and centrifuge...

example 3

[0030] Add distilled water to a 5mm alkali-free ultrafine glass fiber to make a glass fiber suspension with a solid mass content of 20%, then add 98% concentrated sulfuric acid, adjust the pH to 4.0, stir and disperse to obtain a suspension. The bleached softwood pulp with a mass content of 20% is put into a hydraulic pulper to disintegrate, and then stirred by a beating machine to control the beating degree at 45°SR to obtain a beating liquid. The beating liquid and the glass fiber suspension are in volume ratio 3:1 mix, add anionic polyacrylamide, continue to stir to obtain a pulp suspension, which is ready for use, in which the mass of anionic polyacrylamide accounts for 0.8% of the pulp suspension; in parts by weight, disperse 3 parts of nano titanium dioxide in 25 parts of distilled water After stirring and heating in a water bath to 65°C, add ferroferric oxide colloid with a solid mass content of 30%. After the dropwise addition is complete, stir at 400r / min for 1.5h, and ...

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Abstract

The invention belongs to the technical field of filter paper preparation and particularly relates to a preparation method of pressure-resistant anti-high temperature oil-water separation filter paper.In the invention, glass fibers and softwood pulp are mixed to obtain magnetic powder, which has excellent magnetism, so that the filter paper can adsorb the mechanical impurities, such as metal abrasive dust, during hydraulic filtration better; in addition, whiteness of the magnetic powder can be increased, and latex particles are uniformly dispersed in pores of the fiber paper and on surfaces offibers, so that the filter paper has abundant pores and is excellent in oil-water separation effect. The preparation method can increase the performance of break resistance and tensile strength. A glue application liquid not only increases the strength of the filter paper but also improves adsorption efficiency of the filter paper; after the glue application liquid is dried and cured, a layer oforganic high temperature resistant thin film is formed on the surface of the paper fibers, so that surface temperature of the fibers is reduced, softening and thermal degradation of the fibers are avoided, and high-temperature resistance of the oil-water separation filter paper is enhanced. The product has extensive application prospect.

Description

Technical field [0001] The invention belongs to the technical field of filter paper preparation, and specifically relates to a method for preparing pressure-resistant and high-temperature oil-water separation filter paper. Background technique [0002] Oily sewage has a wide range of sources, such as oil extraction, crude oil leakage, ship ballast water, and chemical, steel, food, textile, mechanical processing and other industries that discharge a large amount of oily sewage into the environment. Oily wastewater pollutes the environment, destroys the ecological balance, and endangers human health. Therefore, oil-water separation of oily wastewater is beneficial to water purification. At the same time, the removal of impurities such as moisture in the refined oil through oil-water separation is of great significance to improve oil quality. [0003] At present, oil-water separation materials with special wettability mainly include degreasing and dewatering. Utilizing the special ...

Claims

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Application Information

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IPC IPC(8): D21H27/08D21H13/40D21H15/12D21H17/65D21H17/67D21H17/00D21H17/68D21H17/60D21H17/35D21H17/59D21H17/17D21H19/84D21H19/18D21H21/16D21H17/42D21H21/14
CPCD21H13/40D21H15/12D21H17/00D21H17/17D21H17/35D21H17/42D21H17/59D21H17/60D21H17/65D21H17/675D21H17/68D21H19/18D21H19/84D21H21/14D21H21/16D21H27/08
Inventor 裘友玖邓博赵金晶
Owner FOSHAN GAOMING DISTRICT ZHUAHE NEW MATERIAL TECH CO LTD
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