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Illite adsorbent as well as preparation method and application thereof

An illite and adsorbent technology, applied in the field of illite adsorbent and its preparation, can solve the problems of high preparation cost, difficult industrial application, small preparation amount, etc., and achieves short preparation time, reduced application cost and easy recovery. Effect

Inactive Publication Date: 2017-02-15
ZHENGZHOU YUANRAN BIOLOGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the adsorbent prepared from purified industrial materials has high removal efficiency, the amount of each preparation is relatively small, and the preparation cost is high, which will cause secondary pollution. It needs to meet a certain pH value when used, and it is difficult to realize large-scale industrial application.

Method used

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  • Illite adsorbent as well as preparation method and application thereof

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Effect test

Embodiment 1

[0016] In the embodiment of the present invention, an illite adsorbent is composed of the following raw materials in parts by weight: 33 parts of illite, 1 part of triethanolamine oleate, 7 parts of thioglycolic acid, and 3 parts of trimethyl citrate.

[0017] Thioglycolic acid was mixed with 10.8 times its mass of deionized water to prepare a thioglycolic acid solution. Mix and grind illite and trimethyl citrate, pass through a 120-mesh sieve, then add thioglycolic acid solution, then raise the temperature to 143°C and seal and stir at this temperature for 42min, then lower it to 65°C and perform ultrasonic treatment at this temperature 37min, the ultrasonic power is 800W, then drip triethanolamine oleate, and then stir at a temperature of 79°C for 93min, then stir at a temperature of 100°C until dry, and then calcined at a temperature of 400°C for 3.3h. get the adsorbent.

Embodiment 2

[0019] In the embodiment of the present invention, an illite adsorbent is composed of the following raw materials in parts by weight: 41 parts of illite, 5 parts of triethanolamine oleate, 15 parts of thioglycolic acid, and 7 parts of trimethyl citrate.

[0020] Thioglycolic acid was mixed with 10.8 times its mass of deionized water to prepare a thioglycolic acid solution. Mix and grind illite and trimethyl citrate, pass through a 120-mesh sieve, then add thioglycolic acid solution, then raise the temperature to 143°C and seal and stir at this temperature for 42min, then lower it to 65°C and perform ultrasonic treatment at this temperature 37min, the ultrasonic power is 800W, then drip triethanolamine oleate, and then stir at a temperature of 79°C for 93min, then stir at a temperature of 103°C until dry, and then calcined at a temperature of 400°C for 3.3h. get the adsorbent.

Embodiment 3

[0022] In the embodiment of the present invention, an illite adsorbent is composed of the following raw materials in parts by weight: 35 parts of illite, 2 parts of triethanolamine oleate, 9 parts of thioglycolic acid, and 4 parts of trimethyl citrate.

[0023] Thioglycolic acid was mixed with 10.8 times its mass of deionized water to prepare a thioglycolic acid solution. Mix and grind illite and trimethyl citrate, pass through a 120-mesh sieve, then add thioglycolic acid solution, then raise the temperature to 143°C and seal and stir at this temperature for 42min, then lower it to 65°C and perform ultrasonic treatment at this temperature 37min, the ultrasonic power is 800W, then drip triethanolamine oleate, and then stir at 79°C for 93min, then stir at 101°C until dry, and then calcined at 400°C for 3.3h. get the adsorbent.

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Abstract

The invention discloses an illite adsorbent as well as a preparation method and application thereof. The adsorbent comprises the following raw materials in parts by weight: 33 to 41 parts of illite, 1 to 5 parts of triethanolamine oleate, 7 to 15 parts of mercaptoacetic acid, and 3 to 7 parts of trimethyl citrate. The method comprises the following steps: mixing and grinding illite and trimethyl citrate, adding a mercaptoacetic acid solution, performing sealing, heating and stirring treatment and ultrasonic treatment, dropwise adding triethanolamine oleate, heating, stirring, and performing high temperature calcinations, so as to obtain the adsorbent. According to the method, the optimal technological parameters are screened out through a large quantity of tests, the adsorbent with good heavy metal ion adsorption property can be effectively prepared, and the adsorbent has a wider pH value application range, and has extremely high heavy metal adsorption capacity even in an acidic condition. The preparation method is simple, economical and environmental-friendly, reduces the cost, is wide in raw material source, guarantees the precondition for the preparation of a large amount of adsorbents, does not cause secondary pollution, and is easy for heavy metal recovery and suitable for industrial production.

Description

technical field [0001] The invention relates to the technical field of environmental protection materials, in particular to an illite adsorbent and its preparation method and application. Background technique [0002] At present, due to the mining, smelting, and processing of heavy metals in China, many heavy metals such as lead, mercury, cadmium, and cobalt enter the atmosphere, water, and soil, causing serious environmental pollution. For example, heavy metals discharged with wastewater, even if the concentration is small, can accumulate in algae and bottom mud, be absorbed by the surface of fish and shellfish, produce food chain concentration, and cause public nuisance. At present, there are three main types of heavy metal wastewater treatment methods: chemical reaction removal method, adsorption concentration separation removal method, and microbial or plant removal method. The traditional treatment process of metal wastewater generally has disadvantages such as high co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01J20/30C02F1/28C02F1/62
CPCB01J20/22B01J20/12C02F1/28C02F1/281C02F1/285
Inventor 不公告发明人
Owner ZHENGZHOU YUANRAN BIOLOGY TECH CO LTD
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