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Method for producing carbon fiber with castor seed shells and castor straws as raw materials

A castor bean and carbon fiber technology, which is applied in chemical instruments and methods, carbon compounds, inorganic chemistry, etc., can solve the problems of high raw material requirements, high production costs, and limited promotion and application, so as to achieve wide sources of raw materials and low production costs. Low, the effect of promoting production and application

Inactive Publication Date: 2014-01-29
张京三
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation process has high requirements on raw materials, high production costs, and there are technical barriers in the production of carbon fiber precursors, because the spinning process of carbon fiber precursors and the polyacrylonitrile polymerization process have been adopted by Japan's Toray Corporation and Toho Tenax Group. and Mitsubishi Rayon Group firmly grasped, limiting its promotion and application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Firstly, castor bean shells and castor stalks are sorted by hand, soil and other visible debris are removed, and cleaned with tap water. Get 10kg of cleaned castor bean shells and castor stalks and transfer them to a drying oven for 0.5 hour dehydration at a constant temperature of 40°C. After the initial drying is completed, put the dry material into a pulverizer and crush it to 60 mesh particles, add 100L 40% calcium chloride solution to the crushed material, and stir evenly in reverse. This stage needs to last for about 1 hour. After soaking , take the soaking material aside to observe the soaking effect, the soaking liquid is recovered, and can be used to configure and soak again. Next, move the castor bean shells and castor stalk scraps into the carbonization furnace for high-temperature carbonization at 400°C. During the carbonization period, constant stirring is required to prevent product quality from being affected. After 1.5 hours, the charring and blackening...

Embodiment 2

[0027] Get 100kg of cleaned castor bean shells and castor stalks and transfer them to a drying oven at 40°C for constant temperature dehydration for 0.5 hour. After the initial drying is completed, put the dry material into a pulverizer and crush it to 60 mesh particles, add 1000L 40% calcium chloride solution to the crushed material, and stir evenly in reverse. This stage needs to last for about 1 hour. After soaking , take the soaking material aside to observe the soaking effect, the soaking liquid is recovered, and can be used to configure and soak again. Next, move castor bean shells and straw scraps into a carbonization furnace for high-temperature carbonization at 400°C. During the carbonization period, constant stirring is required to prevent product quality from being affected. After 1.5 hours, if the particles are scorched and blackened, it proves that the carbonization is complete. If the carbonization is not complete, the stirring frequency can be adjusted and the c...

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Abstract

The invention relates to a method for producing carbon fiber with castor seed shells and castor straws as raw materials. The method comprises the following steps of drying, crushing and soaking, carbonizing, activating, washing, separating-out of metallic elements, drying and the like with calcium chloride as an activating agent and hydrochloric acid as an additive, thus preparing the carbon fiber. The method has the advantages of wide source of raw materials, low production cost, simple process, high product yield and high intensity.

Description

technical field [0001] The invention belongs to the field of carbon fiber production, in particular to a method for producing carbon fiber by using castor bean shells and castor straw as raw materials. Background technique [0002] my country is a large agricultural country with abundant straw resources, accounting for about 30% of the world's total straw resources. About 55% of agricultural input elements are transformed into crop straws, and the waste of straw resources is essentially a waste of cultivated land, water resources and agricultural inputs. Straw is a good bio-energy, which contains large nutrients and has great potential for development and utilization. At present, under the condition that our country's forest resources and fossil energy are very tight, straw can be used as an effective substitute. Using straw in a reasonable way can not only alleviate or solve the pollution problem of agricultural waste, but also bring huge economic benefits. Therefore, st...

Claims

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Application Information

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IPC IPC(8): C01B31/10C01B32/336
Inventor 张京三
Owner 张京三
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