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Modified attapulgite heavy metal ion adsorbing agent and preparation method thereof

A technology of modifying attapulgite and heavy metal ions, which is applied in chemical instruments and methods, adsorption water/sewage treatment, and other chemical processes. It can solve the problems that the performance cannot meet the needs of production and life, and achieve increased acid and salt resistance. The effect of uniform modification and increased dispersion

Active Publication Date: 2014-12-10
MINGGUANG GUOXING ATTAPULGITE CLAY
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

The current modified attapulgite cannot meet the needs of production and life in many properties, and its properties need to be further improved

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0015] A modified attapulgite heavy metal ion adsorbent, made of the following raw materials in parts by weight (kg): ammonium sulfate 1.5, water glass 2.5, malonic acid 2.5, layered expanded vermiculite 7, citronellol 0.3, Amino silane coupling agent 1.5, sodium carboxymethyl cellulose 1.5, attapulgite 110, appropriate amount of water, additive 7, 2.5% sodium hydroxide solution 25;

[0016] The auxiliary agent is made of the following raw materials in parts by weight (kg): 0.2 isooctyl palmitate, 2.5 porous silica gel beads, 0.5 polyurethane resin, 4 ethylene glycol, 0.4 vitamin E, 0.4 activated alumina, linolenic acid 0.3, sodium lignosulfonate 0.4, pearl powder 1.3, bamboo fiber 0.2, magnesium sulfate heptahydrate 0.2, charcoal powder 2.5, succinic acid 0.2, aluminum distearate 0.3, medical stone powder 4, silane coupling agent KH-5721.5 The preparation method is: mix and grind porous silica gel beads, pearl powder, charcoal powder, medical stone powder, and silane coupling...

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Abstract

The invention relates to a modified attapulgite heavy metal ion adsorbing agent. The modified attapulgite heavy metal ion adsorbing agent is prepared from the following raw materials in parts by weight: 1 to 2 parts of ammonium sulfate, 2 to 3 parts of water glass, 2 to 3 parts of malonic acid, 6 to 9 parts of layering expanded vermiculite, 0.2 to 0.4 part of citronellol, 1 to 2 parts of a silane coupling agent with amino group, 1 to 2 parts of sodium carboxymethylcellulose, 100 to 120 parts of attapulgite, an appropriate amount of water, 5 to 10 parts of assistants and 20 to 30 parts of a 2% to 3% sodium hydroxide solution. The dispersibility, suspension property, adsorption property and thickening performance of the attapulgite are improved, and the attapulgite is endowed with acid resistance and salt resistance as well as a toxic-free property; the attapulgite modification agent is uniform in modification and unlikely to drop, can be used as an adsorbing agent or a flocculating agent and can remove heavy metal ions, such as copper, in water.

Description

technical field [0001] The invention belongs to the field of attapulgite processing, in particular to a modified attapulgite heavy metal ion adsorbent and a preparation method thereof. Background technique [0002] Attapulgite has good colloidal properties such as unique dispersion, high temperature resistance, salt and alkali resistance, and high adsorption and decolorization ability. It also has certain plasticity and cohesive force, strong water absorption, stickiness and plasticity when wet, small shrinkage after drying, no obvious cracks, soaking in water and disintegration, and suspension does not flocculate and precipitate when it encounters dielectrics. Therefore, attapulgite is widely used in many fields such as sewage treatment, adsorption purification, detergent, rubber, paint, papermaking, light industry, agriculture, cosmetics, etc. It is an important non-metallic mineral. [0003] In order to further improve the use effect of attapulgite and enhance its overal...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/30C02F1/28C02F1/52C02F1/62
Inventor 李振国
Owner MINGGUANG GUOXING ATTAPULGITE CLAY
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