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Method for preparing carbon black from bagasse

A technology of slag carbon black and bagasse, which is applied in the field of solid waste recycling, can solve the problems of waste of energy at pyrolysis temperature and poor economy, and achieve the effects of simple reaction and cost reduction.

Inactive Publication Date: 2016-06-01
张世瑾
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AI Technical Summary

Problems solved by technology

However, a higher pyrolysis temperature wastes a lot of energy and has more by-products, so the economy is not good

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Take 20g of bagasse with a water content of 10-30% after mechanical pulverization and place it in a 500mL round bottom flask, then add 50mL of 98% concentrated sulfuric acid and stir rapidly, then continuously feed ozone into the flask and continuously stir with a magnetic stirrer. It can be seen that the bagasse gradually turns black and expands in volume, forming loose and porous spongy carbon black. The reacted carbon black was repeatedly rinsed with distilled water, and dried at a constant temperature of 105°C. The dried carbon black can be pulverized by a vibrating mill, and can be classified by an ultra-fine airflow classifier to obtain bagasse carbon black of different particle sizes.

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Abstract

The invention belongs to the technical field of solid waste recycling, and particularly relates to a method for preparing carbon black from bagasse. The method comprises the following steps: adding a certain amount of mechanically pulverized bagasse with the water content of 10-30% into a reactor; adding a certain amount of concentrated sulfuric acid into the reactor, quickly stirring uniformly, adding an oxidizer, and continuing stirring to react for 5-20 minutes; cleaning the obtained carbon black, and drying; and milling the dried carbon black with a vibromill, and classifying with a superfine air classification machine to obtain bagasse carbon black with different particle sizes. According to the method, the bagasse carbon black can be prepared by simple reaction under normal temperature and pressure conditions, and the milling and classification are carried out to obtain the carbon black products with different particle sizes.

Description

technical field [0001] The invention belongs to the technical field of solid waste recycling, and in particular relates to a method for preparing carbon black from bagasse. Background technique [0002] Bagasse is one of the main by-products of the sugar industry and can be harmful to the environment if not disposed of properly. China is the third largest sugarcane planting country next to Brazil and India, with bagasse production reaching more than 7 million tons. The components of bagasse are mainly cellulose, hemicellulose and lignin; due to its high degree of lignification, silicification of cane stem epidermal cells and uncoordinated nutrients, bagasse is used as ruminant feed, papermaking raw materials, and edible fungus cultivation There are many disadvantages in raw materials or functional food raw materials. In some sugar producing areas, bagasse is considered a solid waste material that poses environmental concerns, so there is an urgent need to find better ways ...

Claims

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Application Information

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IPC IPC(8): C09C1/48
CPCC09C1/48
Inventor 张世瑾
Owner 张世瑾
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