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Method for preparing metal-organic framework material from metallurgical mine solid wastes

An organic skeleton and mining technology, applied in the field of comprehensive utilization of resources, can solve problems such as high energy consumption and high pollution, and achieve the effect of reducing energy consumption and great guiding significance

Inactive Publication Date: 2019-11-05
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the traditional recycling of valuable metals, facing the problems of high energy consumption and high pollution, the proposal of the new method is of great significance

Method used

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  • Method for preparing metal-organic framework material from metallurgical mine solid wastes

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] S1) Mix 80 grams of dust (particle size 200 microns) from a domestic iron and steel plant with 100 ml of concentrated strong acid, dissolve and separate by centrifugal filtration (the centrifugal separation factor Fr is controlled at 7000), and keep the obtained liquid in an oven at a constant temperature of 120°C for 24 hours. Get mixed salt.

[0045] S2) Add 1.2 g of mixed salts into 15 ml of dimethylacetamide, and ultrasonicate for 5 minutes to obtain the first solution.

[0046] S3) Add 0.2g C 8 h 6 o 4 Added to 15ml of dimethylacetamide, ultrasonic treatment for 5 minutes to obtain the second solution.

[0047] S4) mixing the first solution and the second solution, ultrasonic treatment for 3 minutes to obtain a mixed solution,

[0048] S5) Transfer the mixed solution into a 40 mL stainless steel hydrothermal reaction kettle, and keep the temperature at 110° C. for 20 h. After the reaction, the solid-liquid mixture obtained by the reaction was separated by suct...

Embodiment 2

[0051]S1) Mix 80 grams of dust (particle size 200 microns) from a domestic iron and steel plant with 100ml of concentrated strong acid, dissolve and separate by centrifugal filtration, (the centrifugal separation factor Fr is controlled at 8500) and keep the obtained liquid in an oven at a constant temperature of 120°C for 24h. Get mixed salt.

[0052] S2) Add 0.6 g of mixed salts into 15 ml of dimethylformamide, and ultrasonicate for 3 minutes to obtain a first solution.

[0053] S3) add 0.1g C 4 h 6 N 24 Added to 15ml of dimethylformamide, ultrasonic treatment for 3 minutes, to obtain the second solution.

[0054] S4) mixing the first solution and the second solution, ultrasonic treatment for 3 minutes to obtain a mixed solution,

[0055] S5) Transfer the mixed solution into a 40 mL stainless steel hydrothermal reaction kettle, and keep the temperature at 110° C. for 20 h. After the reaction, the solid-liquid mixture obtained in the reaction was separated by suction fil...

Embodiment 3

[0058] S1) Mix 80 grams of dust (particle size 200 microns) from a domestic iron and steel plant with 100 ml of concentrated strong acid, dissolve and separate by centrifugal filtration (the centrifugal separation factor Fr is controlled at 10,000), and keep the obtained liquid in an oven at a constant temperature of 120°C for 24 hours. Get mixed salt.

[0059] S2) Add 0.2 g of mixed salts into 15 ml of diethylformamide, and ultrasonicate for 3 minutes to obtain the first solution.

[0060] S3) 0.4g C 8 h 6 o 4 Added into 45ml of diethylformamide, ultrasonic treatment for 3 minutes to obtain the second solution.

[0061] S4) mixing the first solution and the second solution, ultrasonic treatment for 3 minutes to obtain a mixed solution,

[0062] S5) Transfer the mixed solution into a 70 mL stainless steel hydrothermal reaction kettle, and keep the temperature at 110° C. for 20 h. After the reaction, the solid-liquid mixture obtained in the reaction was separated by suctio...

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Abstract

The invention belongs to the field of comprehensive utilization of resources, and especially relates to a method for preparing a metal-organic framework material from metallurgical mine solid wastes.The method comprises the following steps: dissolving the metallurgical mine solid wastes by using a concentrated strong acid and a strong alkali to obtain a mixed metal salt, dissolving the mixed metal salt and the organic ligand in an organic solvent by using the organic metal as an organic ligand, and keeping the temperature constant at 70-150 DEG C for 18-30 h to synthesize the metal-organic framework material. The new method for preparing the MOF material containing valuable metal elements from the metallurgical mine solid wastes has the advantages of wide sources of raw materials, effectiveness in utilization of metallurgical slag, minerals, dust and other waste metal alloys containing valuable metal elements, simple synthesis process and mild synthesis conditions. The method is suitable for the comprehensive utilization of metallurgical slag, minerals, dusts and waste metal alloys.

Description

technical field [0001] The invention belongs to the field of comprehensive utilization of resources, and relates to a method for preparing metal-organic framework materials by using metallurgical mine solid waste. Background technique [0002] my country has a large amount of metallurgical slag, minerals, dust and a large number of iron-containing waste metal alloys. The annual output of blast furnace slag alone is as high as 200 million tons, and there are more than 400 large and small tailing ponds. The tailings of all metal mines have reached more than 5 billion tons, and the tailings are growing at a rate of 500 million tons per year; in recent years, nearly 280,000 tons of stainless steel dust is produced in my country every year, and the dust contains Fe, Cr , Ti and other valuable metals, and a series of iron-containing metal alloys such as scrap steel are produced in large quantities, and the comprehensive utilization value is extremely high. In the traditional recycl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F15/02C07C51/41C07C63/15C07C63/307C07D233/58
CPCC07C51/418C07C63/15C07C63/307C07D233/58C07F15/025
Inventor 王丽君吴顺何晓波谭博王旗侯云廷冯晓霞周国治
Owner UNIV OF SCI & TECH BEIJING
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