Clay mineral absorbing material applied to water treatment and preparation method thereof

An adsorption material and clay ore technology, which is applied in the field of adsorption materials and their preparation, can solve the problems that the degree of improvement cannot fully meet the application requirements, the adsorption and purification effect of the adsorption material is unfavorable, and the coagulation effect is not provided, so as to improve the adsorption and coagulation effect. , the effect of increasing the specific surface area and increasing the adsorption capacity

An adsorption material and clay ore technology, which is applied in the field of adsorption materials and their preparation, can solve the problems that the degree of improvement cannot fully meet the application requirements, the adsorption and purification effect of the adsorption material is unfavorable, and the coagulation effect is not provided, so as to improve the adsorption and coagulation effect. , the effect of increasing the specific surface area and increasing the adsorption capacity

CN104056594AInactive Publication Date: 2014-09-24NANTONG UNIVERSITY
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  • Clay mineral absorbing material applied to water treatment and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Polyaluminum chloride is matured at a constant temperature in a closed reactor, and the temperature is controlled at 90°C. After 36 hours of curing, a bentonite clay ore suspension with a concentration of 10wrt% is added in proportion to make the alumina ratio in the reactor 6mmol. / g, stirred at room temperature for 8 hours to fully mix the materials. Finally, centrifugation is carried out, and the adsorption material is obtained by drying at a temperature of 60°C.

[0016] Compared with before modification, the interlayer spacing of the obtained bentonite increases by 12%, and the specific surface area increases by 55%.

Embodiment 2

[0018] Polyaluminum chloride is matured at a constant temperature in a closed reactor, and the temperature is controlled at 95°C. After 15 hours of aging, the montmorillonite clay ore suspension with a concentration of 10wrt% is added in proportion, so that the alumina ratio in the reactor is 30mmol / g, stirred at 60°C for 2 hours to fully mix the materials. Finally, it was naturally cooled to room temperature, centrifuged, and dried at 60° C. to obtain the adsorption material.

[0019] Compared with before modification, the interlayer spacing of the obtained modified montmorillonite increases by 10%, and the specific surface area increases by 100%.

Embodiment 3

[0021] Polyaluminum chloride is matured at a constant temperature in a closed reactor, and the temperature is controlled at 80°C. After 48 hours of aging, the bentonite clay ore suspension with a concentration of 30wrt% is added in proportion to make the ratio of bauxite in the reactor 20mmol / g, stirred at 40°C for 1 hour to fully mix the materials. Finally, it was naturally cooled to room temperature, centrifuged, and dried at 60° C. to obtain the adsorption material.

[0022] Compared with before modification, the interlayer spacing of bentonite increases by 30%, and the specific surface area increases by 80%.

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Abstract

The invention discloses a novel absorbing material and a preparation method of the novel absorbing material and relates to an absorbing material obtained by modifying clay mineral through a pillar. One purpose of the invention is to provide an absorbing material applied to water treatment; the absorbing material comprises pillar clay obtained by modifying a clay mineral suspension liquid containing a smectite structure through a pillaring agent pillar; the pillaring agent is aluminum 30 reinforced polycation; the clay mineral comprises one or two out of montmorillonite and bentonite; the pillaring agent is preferably selected from the aluminum 30 reinforced polycation containing double keggin structure. The other purpose of the invention is to provide a preparation method for preparing the absorbing material by modifying the clay mineral through an aluminum 30 reinforced polycation pillar.

Description

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Claims

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Application Information

Patent Timeline
24 Sep 2014
Publication
CN104056594A