Ramie fiber carbon molecular sieve

A technology of ramie fiber and carbon molecular sieve is applied in the field of polymer chemical industry to achieve the effects of simple process, low gas consumption ratio and low price

Active Publication Date: 2016-08-31
陕西浦士达环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, ramie fiber has not been developed and applied on a large scale in the world. Ramie is mainly used for pulping and papermaking, water and soil conservation, and making hand-woven products.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of preparation method of ramie fiber carbon molecular sieve, its step is as follows:

[0021] (1) Modification is carried out to ramie fiber:

[0022] Pretreatment: immerse the ramie fiber in a 0.3% hydrochloric acid solution, treat it at a constant temperature of 20°C for 65 minutes, and wash it with clean water;

[0023] Enzyme treatment: Prepare a solution of 0.9% cellulase, 0.1% lactase, and 0.2% pectinase, put the pretreated ramie fiber into it, and then treat it at a constant temperature of 38°C for 3 hours, and then beat and separate the filaments to obtain modification The ramie fiber was dried at 80°C, ground into powder and passed through a 50-mesh sieve to obtain modified ramie fiber powder;

[0024] (2) Bonding: The following raw materials will be mixed according to the mass parts: take 58 parts of modified ramie fiber powder, 5 parts of walnut shell powder, 6 parts of mica powder, 25 parts of plant starch, and 22 parts of water for bonding. Combine...

Embodiment 2

[0033] A kind of preparation method of ramie fiber carbon molecular sieve, its step is as follows:

[0034] (1) Modification is carried out to ramie fiber:

[0035] Pretreatment: immerse the ramie fiber in a 0.3% hydrochloric acid solution, treat it at a constant temperature of 25°C for 65 minutes, and wash it with clean water;

[0036] Enzyme treatment: prepare a solution of 0.6% cellulase, 0.1% lactase, and 0.2% pectinase, put the pretreated ramie fiber into it, and then treat it at a constant temperature of 38°C for 5 hours, and then beat and separate the filaments to obtain modification The ramie fiber was dried at 80°C, ground into powder and passed through a 50-mesh sieve to obtain modified ramie fiber powder;

[0037] (2) Adhesive: Mix the following raw materials according to the parts by mass: Take 52 parts of modified ramie fiber powder, 9 parts of walnut shell powder, 6 parts of mica powder, 25 parts of plant starch, and 18 parts of water for bonding. Combined time...

Embodiment 3

[0046] A kind of preparation method of ramie fiber carbon molecular sieve, its step is as follows:

[0047] (1) Modification is carried out to ramie fiber:

[0048] Pretreatment: immerse the ramie fiber in a 0.3% hydrochloric acid solution, treat it at a constant temperature of 21°C for 65 minutes, and wash it with clean water;

[0049] Enzyme treatment: Prepare a solution of 0.8% cellulase, 0.1% lactase, and 0.2% pectinase, put the pretreated ramie fiber into it, and then treat it at a constant temperature of 38°C for 4 hours, and then beat the filaments to obtain modification The ramie fiber was dried at 80°C, ground into powder and passed through a 50-mesh sieve to obtain modified ramie fiber powder;

[0050] (2) Bonding: Mix the following raw materials according to the mass parts: take 56 parts of modified ramie fiber powder, 6 parts of walnut shell powder, 6 parts of mica powder, 25 parts of plant starch, and 20 parts of water for bonding. Combined time is 35min;

[0051...

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PUM

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Abstract

The invention discloses a preparation method of a ramie fiber carbon molecular sieve. The method comprises the following steps: (1) modifying ramie fiber; (2) bonding, namely, mixing the following raw materials in parts by mass: 52-58 parts of modified ramie fiber powder, 5-9 parts of walnut shell flour, 6 parts of mica powder, 25 parts of plant starch and 18-22 parts of water, and bonding for 35 minutes; (3) molding; (4) carbonizing and performing pore adjustment treatment; and (5) preparing a finished product, namely, rapidly cooling a certain amount of high-temperature samples in a vacuum state, rapidly evaluating the aperture distribution situation by using a specific surface area and pore structure distributor, detecting so as to obtain the carbon molecular sieve of which the aperture is 1.8-2.5 angstrom, and controlling the sealing temperature of a product to be 65-72 DEG C.

Description

technical field [0001] The invention belongs to the technical field of polymer chemical industry, and in particular relates to a ramie fiber carbon molecular sieve. Background technique [0002] Carbon Molecular Sieve (Carbon Molecular Sieve, CMS) is a non-polar carbon adsorption material with nano-scale ultra-fine pores in a broad sense. Composition, so the pore structure of carbon molecular sieve is very developed, and has unique surface characteristics. Because the wedge-shaped micropores of CMS are close to the diameter of the adsorbed molecules, most of them are effective micropores, and they have the characteristic of adjusting the pore size of CMS according to the molecular size, so they have the ability to screen molecules. The unique pore structure and stable chemical properties of CMS make it widely used in the chemical industry. In addition, it is also widely used in nitrogen and hydrogen production, wastewater treatment, environmental protection, military defens...

Claims

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Application Information

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IPC IPC(8): C01B31/08
CPCC01P2006/16
Inventor 戴宝根顾柏敏
Owner 陕西浦士达环保科技有限公司
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