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Process for preparing modified concavo-convex bar soil of cation surface activating agent

A technology of modifying attapulgite and surfactant, which is applied in dyeing low molecular organic compound treatment, fibrous filler, etc., to achieve the effects of reducing adsorption capacity, increasing removal rate, and improving adsorption performance

Inactive Publication Date: 2006-06-28
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Utilizing the characteristic of attapulgite containing hydrated cations, there is no report on the organic modification of attapulgite by ultrasonic means.

Method used

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  • Process for preparing modified concavo-convex bar soil of cation surface activating agent
  • Process for preparing modified concavo-convex bar soil of cation surface activating agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1. The impact of the kind of cationic surfactant on adsorption performance

[0022] Add 50ml of water to each of the four beakers, and number them sequentially 2-5, then add octadecyltrimethylammonium chloride, cetyltrimethylammonium chloride, cetyltrimethylammonium Methyl ammonium bromide, dodecyl trimethyl ammonium chloride, dodecyl dimethyl benzyl ammonium chloride, stirring with a glass rod to make it completely dissolved, then add 5g of the pretreated concave-convex to each beaker The bar clay was ultrasonically treated with a screen current of 0.6A for 5 minutes to prepare four parts of organically modified attapulgite clay, which were dried and crushed for use. Determination of the removal rate of phenol. And measure the removal rate of phenol by the attapulgite without organic modification, the number is 1, compare the adsorption performance, the results are shown in Table 1:

[0023] acid treatment

octadecyltrimethyl chloride

...

Embodiment 2

[0026] Embodiment 2. Determination of cationic surfactant modified attapulgite process conditions

[0027] Influence of Addition Amount of Cationic Surfactant on Adsorption Performance

[0028] Weigh octadecyltrimethylammonium chloride in proportions of 5mmol / 100g, 20mmol / 100g, 30mmol / 100g, 40mmol / 100g, 50mmol / 100g, and 70mmol / 100g, and add to six beakers filled with 50ml of water , stir the glass rod to make it completely dissolve, add 5g of pretreated attapulgite to each beaker, and use a 0.6A screen current for ultrasonic treatment for 5 minutes to prepare six kinds of organically modified attapulgite. Dried and crushed. Finally, the absorbance value was measured to calculate the removal rate of phenol.

[0029]The results show that the more the addition of octadecyl trimethyl ammonium chloride, the more obvious the modification effect of attapulgite, and when the addition of octadecyl trimethyl ammonium chloride is less, the addition The change of the concentration has ...

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Abstract

The invention relates to cationic surface active agent modified sagging bar earth manufacturing method. It belongs to high-tech content, high addition value sagging bar earth new product exploitation utilization. It includes the following steps: using sagging bar earth as material to do acid treatment; ion exchanging with sodium ion; and using ultrasonic wave to promote cation exchange. The method can greatly increase modified speed and interaction with organic. The modified sagging bar earth phenol adsorbability can rise by 18 times.

Description

technical field [0001] A method for preparing attapulgite modified by cationic surfactant belongs to the development and utilization of new attapulgite products with high technical content and high added value. Background technique [0002] Attapulgite is a kind of hydrous-rich magnesium aluminum silicate clay mineral, which has a unique layer chain crystal structure and very fine (about 0.01μm×1μm) rod-like and fibrous crystal morphology. Its microstructure generally includes three levels: (1) The basic structural unit is microrod or fibrous single crystal, referred to as rod crystal. (2) A rod crystal bundle formed by parallel aggregation of single crystals. (3) Various aggregates formed by stacking and stacking crystal bundles (including rod crystals). my country's attapulgite resources are very rich, in my country's Anhui Mingguang, Jiangsu Xuyi, Liuhe and other places are rich in reserves, only Xuyi County's existing attapulgite reserves are more than 67 million tons,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/28C09C3/08
Inventor 王兴国刘元法黄健花金青哲
Owner JIANGNAN UNIV
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