CN104741083A - Method for preparing composite magnetic adsorption material - Google Patents
Method for preparing composite magnetic adsorption material Download PDFInfo
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- CN104741083A CN104741083A CN201510149495.9A CN201510149495A CN104741083A CN 104741083 A CN104741083 A CN 104741083A CN 201510149495 A CN201510149495 A CN 201510149495A CN 104741083 A CN104741083 A CN 104741083A
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- adsorption material
- magnetic adsorption
- composite magnetic
- coal slime
- iron ore
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Abstract
The invention belongs to a method for preparing a composite magnetic adsorption material and in particular relates to a method for preparing the composite magnetic adsorption material aiming at coal slime, straws and magnetic iron ore powder. The method comprises the following steps: respectively drying, crushing and screening the coal slime, straws and magnetic iron ore powder, uniformly mixing the coal slime, straws and magnetic iron ore powder according to a certain mass ratio, and grinding the mixture to be with proper granularity; performing carbonizing treatment on the mixed materials in an atmosphere sintering furnace, thereby obtaining the composite magnetic adsorption material with the developed pore structure and magnetism. According to the magnetic adsorption material, the used raw materials are low in price, the production process is simple, the used product is easy to recycle, the secondary utilization cost is low, and the material has potential application prospect.
Description
Technical field
The invention belongs to the recycling field of solid waste, be specifically related to the preparation method that a kind of coal slime, stalk and magnetic iron ore prepare composite magnetic adsorption material altogether.
Background technology
At present, coal in China industry is met cold, coal slime sales difficulty.Coal slime caloric value is low, poor quality, makes commercial Application more limited.Therefore, the efficiency utilization of coal slime is improved and broaden application field is improved added value and had very important significance.
China's annual agricultural crop straw output has several hundred million ton.Because stalk comprehensive development and utilization technology is not mature enough, investment is comparatively large, and utilization rate is low, has a large amount of stalks every year by people's burning disposal.This processing method not only wastes resource, and increases the weight of haze, atmosphere pollution, and people's physical and mental health and go off daily are had a strong impact on.Therefore, the application technology as the second resource how improving crops tangerine stalk further becomes the technical bottleneck being instantly badly in need of solving.
Summary of the invention
The object of the invention is that added value is improved in the integrated application field in order to expand coal slime and stalk, reduces cost of investment, provides a simple and easy method utilizing coal slime, stalk and magnetic iron ore jointly to prepare composite magnetic adsorption material.
For achieving the above object, present invention employs following technical scheme:
A kind of preparation method of composite magnetic adsorption material, it is characterized in that comprising the following steps: first coal slime, stalk and magnetic iron ore are carried out drying respectively, fragmentation and screening, Homogeneous phase mixing is carried out than by coal slime, stalk and magnetic iron ore according to certain mass, and be ground to appropriate particle size, then mixed material is placed in atmosphere sintering furnace and carries out charing process, obtain the composite magnetic adsorption material with flourishing pore structure and magnetic.
The preparation method of a kind of composite magnetic adsorption material of the present invention according to claim 1, it is characterized in that described carrying out Homogeneous phase mixing according to certain mass than by coal slime, stalk and magnetite powder, the mixing quality of concrete coal slime, stalk and magnetite powder is than being 1.5:1:0.05-0.5:1:0.1.
The preparation method of a kind of composite magnetic adsorption material of the present invention according to claim 1, wherein said is ground to appropriate particle size, and concrete granularity is 120-180um.
The preparation method of a kind of composite magnetic adsorption material of the present invention according to claim 1, wherein said carries out charing process in atmosphere sintering furnace, and actual conditions is nitrogen atmosphere, and calcining heat is 750-850 DEG C, and the calcination time is 1-2h.
The invention provides a kind of preparation method of composite magnetic adsorption material, the method not only can alleviate the problem of environmental pollution that crop straw burning causes, and widens coal slime application, improves coal slime added value, and the magnetic that product can be utilized to have reclaims, be convenient to recycle.The preparation method of a kind of composite magnetic adsorption material of the present invention, preparation technology is simple, cheaper starting materials, and product is beneficial to recovery after using, and secondary utilizes cost low, and application prospect is extensive.
Accompanying drawing explanation
Fig. 1 is the syntheti c route schematic diagram of composite magnetic adsorption material of the present invention.
Fig. 2 is the microscopic appearance of composite magnetic adsorption material of the present invention.
Detailed description of the invention
Below in conjunction with Figure of description and embodiment, the invention will be further described.
Embodiment 1:
Coal slime, stalk and magnetic iron ore are carried out in air dry oven drying process at 75 DEG C, utilize disintegrating machine to be distinguished fragmentation, and screening process is carried out to it.By pretreated coal slime, stalk powder and magnetic iron ore in mass ratio for 1.5:1:0.05 carries out Homogeneous phase mixing, and be ground to 120um.Be placed on by mixed material in atmosphere sintering furnace and carry out charing process, actual conditions is nitrogen atmosphere, and calcining heat is 850 DEG C, and the calcination time is 1h.Namely NEW TYPE OF COMPOSITE magnetic adsorptive material is obtained.Syntheti c route as shown in Figure 1.
The microscopic appearance of composite magnetic adsorption material prepared by the embodiment of the present invention as shown in Figure 2.Composite magnetic adsorption material has a large amount of micropores, and the pore structure of its prosperity can fully contact with adsorbed material, for absorption property provides good architecture basics.
The product prepared by the present embodiment carries out absorption property detection.Under magnetic agitation condition, added by 30mg composite adsorbing material in methylene blue solution (50mL, 0.03g/L), stir 15min, centrifugal filtration, gets supernatant liquor and carries out absorbance test.(deionized water makes color solution to utilize ultraviolet-uisible spectrophotometer to carry out absorbance test, wavelength is arranged on 665nm), before test result Graphics Processing, the absorbance of methylene blue solution is 2.688, and after process, the absorbance of methylene blue solution is 0.04.
The product prepared by the present embodiment carries out magnetism testing.Adopt common magnet the composite magnetic adsorption material in methylene solution can be separated out, show good magnetic, be beneficial to recycling.
Embodiment 2:
Coal slime, stalk and magnetic iron ore are carried out in air dry oven drying process at 70 DEG C, utilize disintegrating machine to be distinguished fragmentation, and screening process is carried out to it.By pretreated coal slime, stalk powder and magnetic iron ore in mass ratio for 0.5:1:0.1 carries out Homogeneous phase mixing, and be ground to 150um.Be placed on by mixed material in atmosphere sintering furnace and carry out charing process, actual conditions is nitrogen atmosphere, and calcining heat is 750 DEG C, and the calcination time is 1.5h.Namely NEW TYPE OF COMPOSITE magnetic adsorptive material is obtained.
The absorbance that composite adsorbing material prepared by the present embodiment is used for processing front methylene blue solution is 2.688, and after process, the absorbance of methylene blue solution is 0.10.The product prepared by the present embodiment carries out magnetism testing, shows good magnetic.
Claims (4)
1. the preparation method of a composite magnetic adsorption material, it is characterized in that comprising the following steps: first coal slime, stalk and magnetic iron ore are carried out drying respectively, fragmentation and screening, Homogeneous phase mixing is carried out than by coal slime, stalk and magnetic iron ore according to certain mass, and be ground to appropriate particle size, then mixed material is placed in atmosphere sintering furnace and carries out charing process, obtain the composite magnetic adsorption material with flourishing pore structure and magnetic.
2. the preparation method of a kind of composite magnetic adsorption material of the present invention according to claim 1, it is characterized in that described carrying out Homogeneous phase mixing according to certain mass than by coal slime, stalk and magnetite powder, the mixing quality of concrete coal slime, straw and magnetite powder is than being 1.5:1:0.05-0.5:1:0.1.
3. the preparation method of a kind of composite magnetic adsorption material of the present invention according to claim 1, wherein said is ground to appropriate particle size, and concrete granularity is 120-180um.
4. the preparation method of a kind of composite magnetic adsorption material of the present invention according to claim 1, wherein said carries out charing process in atmosphere sintering furnace, and actual conditions is nitrogen atmosphere, and calcining heat is 750-850 DEG C, and the calcination time is 1-2h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510149495.9A CN104741083A (en) | 2015-03-30 | 2015-03-30 | Method for preparing composite magnetic adsorption material |
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| CN201510149495.9A CN104741083A (en) | 2015-03-30 | 2015-03-30 | Method for preparing composite magnetic adsorption material |
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| CN104741083A true CN104741083A (en) | 2015-07-01 |
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| CN201510149495.9A Pending CN104741083A (en) | 2015-03-30 | 2015-03-30 | Method for preparing composite magnetic adsorption material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105060421A (en) * | 2015-07-22 | 2015-11-18 | 航天圣诺（北京）环保科技有限公司 | Cheap composite magnetic seed preparation method and method for treating printing and dyeing wastewater by utilizing magnetic seeds |
| CN113877525A (en) * | 2021-09-10 | 2022-01-04 | 中国地质大学（武汉） | Method for restoring heavy metal polluted water body by magnetic coke |
Citations (4)
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|---|---|---|---|---|
| CN101700884A (en) * | 2009-12-02 | 2010-05-05 | 太原嘉能动力科技有限公司 | Method for producing activated carbon from straws |
| CN103566899A (en) * | 2013-11-06 | 2014-02-12 | 山东科技大学 | Comprehensive treatment method for agricultural straws |
| CN104258823A (en) * | 2014-10-27 | 2015-01-07 | 济南大学 | Modified magnetic biochar adsorbing material and application thereof |
| CN104289182A (en) * | 2014-10-27 | 2015-01-21 | 安徽理工大学 | Simple method for preparing compound adsorbing material by straws and coal gangues together |
-
2015
- 2015-03-30 CN CN201510149495.9A patent/CN104741083A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101700884A (en) * | 2009-12-02 | 2010-05-05 | 太原嘉能动力科技有限公司 | Method for producing activated carbon from straws |
| CN103566899A (en) * | 2013-11-06 | 2014-02-12 | 山东科技大学 | Comprehensive treatment method for agricultural straws |
| CN104258823A (en) * | 2014-10-27 | 2015-01-07 | 济南大学 | Modified magnetic biochar adsorbing material and application thereof |
| CN104289182A (en) * | 2014-10-27 | 2015-01-21 | 安徽理工大学 | Simple method for preparing compound adsorbing material by straws and coal gangues together |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105060421A (en) * | 2015-07-22 | 2015-11-18 | 航天圣诺（北京）环保科技有限公司 | Cheap composite magnetic seed preparation method and method for treating printing and dyeing wastewater by utilizing magnetic seeds |
| CN113877525A (en) * | 2021-09-10 | 2022-01-04 | 中国地质大学（武汉） | Method for restoring heavy metal polluted water body by magnetic coke |
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Application publication date: 20150701 |
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