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A kind of activated bone charcoal and preparation method thereof

A bone charcoal and active technology, applied in the field of activated bone charcoal and its preparation, can solve the problems of polluting the environment and wasting resources, and achieve the effects of high adsorption performance, simple process and large specific surface area

Active Publication Date: 2020-05-22
QINGHAI UNIV FOR NATITIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The treatment of these bones has become a big problem. If the treatment is not good, it will pollute the environment and waste resources.

Method used

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  • A kind of activated bone charcoal and preparation method thereof
  • A kind of activated bone charcoal and preparation method thereof
  • A kind of activated bone charcoal and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0015] Specifically, the application provides a preparation method of activated bone charcoal, which comprises the following steps:

[0016] S1. Drying: Dry the discarded animal bones until the water content is 5-15%.

[0017] S2. Crushing: Crushing the discarded animal bones according to the process requirements.

[0018] S3. Impregnation with an activator: mix the pulverized animal waste bones with an activator and soak for 12-20 hours. Wherein, the mass ratio of the activator to the discarded animal bone is 1.5-3:1, and the activator includes one or more of potassium hydroxide, phosphoric acid, zinc chloride and magnesium chloride.

[0019] By impregnating animal waste bones with activators, usually these activators have dehydration and swelling effects on carbon-containing organic matter, and can fully contact with waste bones, and activate them at a certain temperature (different activators require different temperature ranges) In the process, the activator interacts wi...

Embodiment 1

[0036] The present embodiment provides a kind of active aggregate (phosphoric acid activated waste pork bone charcoal adsorption material), and its preparation method is as follows:

[0037] Weigh 20 g of waste pig bone raw material and mix with 50 g of phosphoric acid (concentration 85%) activator, and soak for 15 hours. Put the fully impregnated material into a box-type resistance furnace, heat up to 550°C at 20°C / min to activate for 60 minutes, take it out after naturally cooling to room temperature, wash it with water for 5 times, filter it, dry it at 110°C for 10 hours, take it out and grind it 1. After sieving, the prepared powdered activated pig bone charcoal adsorption material sample is packed into a sample bag for subsequent use.

Embodiment 2-5

[0039] Embodiment 2-5 provides a kind of active aggregate (phosphoric acid activated waste pig bone charcoal adsorption material), its preparation method is basically the same as embodiment 1, the difference is:

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Abstract

The invention relates to the field of adsorbing materials and provides an active bone coal and a preparation method thereof. The preparation method for the active bone comprises the following steps: mixing the smashed waste animal bones with an activator and steeping for 12-20h; activating for 60-90min at 500-850 DEG C, thereby acquiring an activated material; directly washing the activated material with water till pH value is 6-8, and then drying, thereby acquiring the active bone coal. The active bone coal has a specific surface area of 200-500m2 / g and a methylene blue absorbing value of 30-130mg / g. The invention is beneficial to the recycling of various waste animal bones and the saving of resources, such as timbers, coal and coconut shells. The prepared various animal bone-based activebone coals can be used for locally replacing the traditional active carbon products; no inert gas shielding is required in the preparation process; the process is simple; the preparation method is easy for industrial production.

Description

technical field [0001] The invention relates to the field of adsorption materials, in particular to an activated bone charcoal and a preparation method thereof. Background technique [0002] Carbon adsorption material is a kind of porous carbon-containing material, which has the characteristics of developed pore structure and large specific surface area. It is an excellent adsorbent with stable performance and easy regeneration. It is an environmentally friendly adsorbent and is widely used in metallurgy. , chemical industry, environmental protection and other directions. At present, in the process of preparing carbon adsorption materials, materials rich in carbon elements such as wood, coal, and various nut shells are mainly used as raw materials, and the preparation of various carbon adsorption materials has become a research hotspot for scholars at home and abroad. [0003] As we all know, China has a population of more than 1.3 billion, and the amount of all kinds of me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/324C01B32/342C01B32/348
CPCC01B32/324C01B32/342C01B32/348
Inventor 李海朝黄丽娟杨斯乔张净净宋桂秀
Owner QINGHAI UNIV FOR NATITIES
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