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A kind of attapulgite/straw composite material and its preparation method and application

A composite material and attapulgite technology, which is applied in chemical instruments and methods, carbon preparation/purification, and other chemical processes, can solve problems such as uneconomical, expensive, and low adsorption capacity, and reduce environmental burdens and reduce Production cost, the effect of reducing environmental pollution

Active Publication Date: 2014-10-08
安徽久吾天虹环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a common adsorbent, activated carbon has a large adsorption capacity, but the price of activated carbon itself is relatively high. It is extremely uneconomical to discard it after only one use, resulting in waste of resources and increased costs.
At present, the existing macroporous resins on the market are expensive, the adsorption capacity is not high, and the stability and mechanical strength are not ideal.
As common adsorbents such as aluminum phosphate and hydrated titanium dioxide, although the operation is simple and the treatment effect is good, they are expensive and have small adsorption capacity, so they are rarely used in industrial wastewater treatment.

Method used

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  • A kind of attapulgite/straw composite material and its preparation method and application
  • A kind of attapulgite/straw composite material and its preparation method and application
  • A kind of attapulgite/straw composite material and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: the preparation of composite material

[0031] Crush the straw and sieve it through a 40-mesh sieve to get the straw powder, crush the attapulgite and pass it through a 120-mesh sieve to get the attapulgite powder, mix 180g of the straw powder, 30g of the attapulgite powder and 100mL of thermosetting phenolic resin 2127 to get a mixture a;

[0032] Add 100mL of ethanol solution with a mass concentration of 95% and 50mL of curing agent NL to the mixture, stir evenly, then dry naturally for 24 hours, and then dry at 80°C for 20-40min to obtain mixture b;

[0033] The mixture b was hot-pressed at 80°C and a pressure of 5MPa for 8 minutes, then sintered at 900°C for 3 hours under vacuum conditions, and the composite material was obtained after cooling in the furnace. The heating rate during high-temperature sintering was 4 °C / min.

Embodiment 2

[0035] The preparation method of this example is the same as Example 1, except that attapulgite is 30g, straw is 150g, thermosetting phenolic resin is 80mL, alcohol is 80mL, and curing agent is 40mL.

Embodiment 3

[0037] The preparation method of this example is the same as that of Example 1, except that attapulgite powder is 30g, rice straw powder is 120g, thermosetting phenolic resin is 70mL, alcohol is 70mL, and curing agent is 30mL.

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Abstract

The invention discloses an attapulgite / straw composite material as well as a preparation method and application thereof. The attapulgite / straw composite material comprises raw materials of 30-50g of attapulgite, 100-150g of straw, 60-90ml of bonding agent and 25-40mL of curing agent, wherein the bonding agent is thermosetting phenol resin; and the curing agent is the curing agent matched with the thermosetting phenol resin. An environment material prepared by the preparation method disclosed by the invention has the advantages of great density, strong adsorptivity, excellent mechanical property and the like and has important significance for resource recycling and environment protection.

Description

1. Technical field [0001] The invention relates to recycling and reuse of agricultural by-products, in particular to an attapulgite / rice straw composite material and its preparation method and application. 2. Background technology [0002] In the process of continuous development of today's society, population expansion, resource shortage and environmental degradation are becoming more and more serious, and have gradually become the three bottlenecks restricting human development. In the past, when people studied materials, they only pursued the high performance of materials, and seldom considered the impact of material production on the human environment, that is, the environmental coordination of materials. Environmental coordination refers to less resource and energy consumption, no pollution, and can be recycled or regenerated. The mining and production process of materials is the source of resources, energy consumption and serious environmental pollution in today's soc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/24B01J20/30C01B31/02C02F1/28C01B32/05
Inventor 吴文涛聂志芳谭方良
Owner 安徽久吾天虹环保科技有限公司
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