Application of charcoal-based magnetic adsorption material or product thereof in adsorption of liquid chemicals

A magnetic adsorption material, biochar technology, applied in other chemical processes, inorganic chemistry, selective adsorption, etc., can solve the problems of inability to effectively block continuous pollution, unsuitable for large-scale use, slow response time, etc. Adjustable, easy-to-get, quick-to-handle effects

Active Publication Date: 2022-04-01
JIANGSU PROVINCIAL ACAD OF ENVIRONMENTAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Most of the original emergency materials or methods use sand, which has problems such as slow response time, poor effect, and inability to effectively block continuous pollution. Although a few adsorption materials such as graphene have certain adsorption capacity, they are often expensive and should not be used in large quantities. The scope of use, the development and research of new emergency adsorption materials are the due meaning of the emergency treatment of organic liquid chemical leakage

Method used

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  • Application of charcoal-based magnetic adsorption material or product thereof in adsorption of liquid chemicals
  • Application of charcoal-based magnetic adsorption material or product thereof in adsorption of liquid chemicals
  • Application of charcoal-based magnetic adsorption material or product thereof in adsorption of liquid chemicals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A biochar emergency adsorption material capable of magnetically recovering non-polar chemicals is prepared by the following steps:

[0054] (1) The collected straw was washed with deionized water to remove dirt, and then dried in an oven at 80°C for 24 hours; subsequently, these samples were pulverized into powder with a pulverizer, and passed through a 20-mesh mechanical sieve.

[0055] (2) Add 2g K 2 FeO 4 Add it into a beaker with 50mL of deionized water, stir to dissolve; pour 10.0g of straw powder into the above K 2 FeO 4 solution, mechanically stirred for 10 h; then the mixed solution was placed in a water bath and continuously stirred at 80°C to obtain a paste; subsequently, it was transferred to an oven and dried at 100°C for 12 hours.

[0056] (3) The obtained solid mixture was pulverized and passed through a 20-mesh sieve, and pyrolyzed in a tube furnace at a specified temperature of 700°C for 2 hours, with a heating rate of 5°C min -1 , both heating and p...

Embodiment 2

[0059] A biochar emergency adsorption material capable of magnetically recovering non-polar chemicals is prepared by the following steps:

[0060] (1) The collected straw was washed with deionized water to remove dirt, and then dried in an oven at 80°C for 24 hours; subsequently, these samples were pulverized into powder with a pulverizer, and passed through a 20-mesh mechanical sieve.

[0061] (2) Add 2g K 2 FeO 4 Add it into a beaker with 50mL of deionized water, stir to dissolve; pour 10.0g of straw powder into the above K 2 FeO 4 solution, mechanically stirred for 10 h; then the mixed solution was placed in a water bath and continuously stirred at 80°C to obtain a paste; subsequently, it was transferred to an oven and dried at 100°C for 12 hours.

[0062] (3) The obtained solid mixture was pulverized and passed through a 20-mesh sieve, and pyrolyzed in a tube furnace at a specified temperature of 600 ° C for 2 hours, and the heating rate was 5 ° C min -1 , both heating...

Embodiment 3

[0071] A biochar emergency adsorption material capable of magnetically recovering polar chemicals is prepared by the following steps:

[0072] (1) The collected straw was washed with deionized water to remove dirt, and then dried in an oven at 80°C for 24 hours; subsequently, these samples were pulverized into powder with a pulverizer, and passed through a 20-mesh mechanical sieve.

[0073] (2) Add 2g K 2 FeO 4 Add it into a beaker with 50mL of deionized water, stir to dissolve; pour 10.0g of straw powder into the above K 2 FeO 4 solution, mechanically stirred for 10 h; then the mixed solution was placed in a water bath and continuously stirred at 80°C to obtain a paste; subsequently, it was transferred to an oven and dried at 100°C for 12 hours.

[0074] (3) The obtained solid mixture was pulverized and passed through a 20-mesh sieve, and pyrolyzed in a tube furnace at a specified temperature of 300°C for 2 hours, with a heating rate of 5°C min -1 , both heating and pyrol...

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Abstract

The invention discloses an application of a biochar-based magnetic adsorption material or a product thereof in adsorbing liquid chemicals. The biochar-based magnetic adsorption material is obtained by carbonizing a biochar-based raw material and an additive, wherein the additive is any one of K2FeO4, Fe3O4, Fe2O3, FeCl3, Fe (SO4) 2.7 H2O and FeCl2 or a combination of several of the K2FeO4, the Fe3O4, the Fe2O3, the FeCl3, the Fe (SO4) 2.7 H2O and the FeCl2. According to the method, the safety coefficient of disposal personnel is improved, meanwhile, rapid adsorption, rapid disposal and convenient recovery of leaked chemicals can be achieved, and environmental hazards caused by the leaked chemicals are reduced to the maximum extent.

Description

technical field [0001] The invention belongs to the field of environmental protection technology and material preparation, and particularly relates to the application of a biochar-based magnetic adsorption material or its products in the adsorption of liquid chemicals. Background technique [0002] As a product of the industrial age, organic chemical industry is an important part of my country's industrial system, affecting people's basic necessities of life. The rapid development of organic chemical industry has also brought about a sharp increase in organic chemicals. The production and transportation of a large number of organic chemicals, mainly hydrocarbons and their derivatives, has also entered the fast lane with the development of the economy. While generating huge wealth, it has also brought major environmental pollution and personal safety hazards . Organic chemicals include natural mineral petroleum and its products, most of which are flammable, explosive, poiso...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/28B01J20/30B01J20/20B01D15/08
CPCY02E50/10
Inventor 王水王海鑫柏立森张满成王栋陶景忠刘伟傅博文冯亚松蒋林惠钟道旭
Owner JIANGSU PROVINCIAL ACAD OF ENVIRONMENTAL SCI
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