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Method for preparing multifunctional composite material from caragana korshinskii and graphite tailings

A technology of Caragana caragana and graphite tailings, applied in chemical instruments and methods, soil conditioning materials, applications, etc., can solve the problems of preparing multi-functional composite water-saving materials, no precedents for applications, etc., and reduce equipment requirements , fast water absorption and excellent performance

Active Publication Date: 2021-06-25
INNER MONGOLIA UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are no relevant reports on the preparation of multifunctional composite water-saving materials based on "local materials" such as Caragana caragana, graphite tailings, and potassium humate, and there is no precedent for their application

Method used

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  • Method for preparing multifunctional composite material from caragana korshinskii and graphite tailings
  • Method for preparing multifunctional composite material from caragana korshinskii and graphite tailings
  • Method for preparing multifunctional composite material from caragana korshinskii and graphite tailings

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preparation example Construction

[0037] figure 1 A flow chart of the technical process of the method for preparing multifunctional composite materials using Caragana caragana and graphite tailings provided in the embodiment of the present application. see figure 1 , the preparation method comprises the steps of:

[0038] (1) Caragana caragana twig coarse powder, graphite tailings coarse powder and potassium humate are uniformly mixed in a certain proportion, and then ultra-high temperature steam jet crushing is carried out to obtain a surface-active powder with a particle size of less than 25 μm;

[0039] (2) Spray an aqueous solution containing ascorbic acid into the powder obtained in step (1), then spray into an ethanol solution containing KH570, control the total water content of the powder to be 30-45%, mix well and place in a closed container 24h;

[0040] (3) Rolling the mixture obtained in step (2) for 3 to 5 times to obtain a sheet with a thickness of 0.5 to 2 mm;

[0041] (4) Disperse the flakes...

Embodiment 1

[0057] After fully mixing 20kg of caragana twig coarse powder, 30kg of graphite tailings coarse powder and 50kg of potassium humate, ultra-high temperature steam jet crushing treatment is carried out to obtain a surface-active powder with a particle size of less than 25 μm. Then, spray 42.8L of aqueous solution containing 2kg of ascorbic acid evenly into the powder, then spray 10L of ethanol solution containing 2kg of KH570, mix well to obtain a powder with a total water content of 30%, and then transfer it to an airtight container for 24 hours . The semi-wet powder that is fully infiltrated after standing is rolled for 3 to 5 times to obtain a thin sheet with a thickness of 1 mm. Disperse the obtained flakes into 500kg of water under mechanical stirring, then add 185kg of acrylic acid and 2kg of N,N'-methylenebisacrylamide, and fully stir to form a uniform slurry suspension. Transfer the suspension into a reaction tank, bubble with nitrogen for 1 h, then add 3.7 kg of initia...

Embodiment 2

[0059] After fully mixing 40kg of caragana twig coarse powder, 10kg of graphite tailings coarse powder and 50kg of potassium humate, ultra-high temperature steam jet crushing treatment is performed to obtain a surface-active powder with a particle size of less than 25 μm. Then, spray 81.8L of aqueous solution containing 5kg of ascorbic acid evenly into the powder, then spray 10L of ethanol solution containing 5kg of KH570, mix well to obtain a powder with a total water content of 45%, and then transfer it to an airtight container for 24 hours . Roll the semi-wet powder that is fully infiltrated after standing for 3 to 5 times to obtain a thin sheet with a thickness of 0.5 mm. Disperse the obtained flakes into 1500kg of water under mechanical stirring, then add 100kg of acrylamide and 6kg of N,N'-methylenebisacrylamide, and fully stir to form a uniform slurry suspension. Transfer the suspension into a reaction tank, bubble with nitrogen for 1 hour, then add 5kg of initiator am...

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Abstract

The invention provides a method for preparing a multifunctional composite material from caragana korshinskii and graphite tailings, and belongs to the field of composite material preparation. According to the invention, rich caragana korshinskii biomass resources and graphite tailing resources in China are utilized, and a novel composite material with multiple functions of water retention, slow release of humic acid and trace elements, soil pollution remediation and soil salt and alkali improvement is developed through integration of chemical, material and mineralogy methods. The requirements of agricultural development and ecological restoration on environment-friendly ecological materials are met, and a new way is provided for perfecting a closed-loop ecological chain of resource utilization-new material development-ecological restoration-economic appreciation and achieving the goal of circular economy development.

Description

technical field [0001] The present application relates to the technical field of composite material preparation, in particular, to a method for preparing multifunctional composite materials using Caragana caragana and graphite tailings. Background technique [0002] Long-term problems such as drought, water shortage, poor soil, and desertification in the northern and western regions of my country have led to a series of major problems affecting people's livelihood and social development, such as low agricultural production efficiency and difficult ecological restoration. Therefore, through the development of new water-saving environmental materials, improving the level of agricultural production and ecological restoration, promoting agricultural production and income and improving the ecological environment has attracted great attention. Water-absorbent polymer materials have shown great application potential as water-saving materials in the fields of agriculture, forestry a...

Claims

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Application Information

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IPC IPC(8): C09K17/40
CPCC09K17/40Y02W30/91
Inventor 王文波王雪何庆东刘翔宇赵文廷张寰郝召小
Owner INNER MONGOLIA UNIVERSITY
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