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Heavy metal adsorbent and preparation method thereof

An adsorbent and heavy metal technology, which is applied in the field of heavy metal adsorbent and its preparation, can solve the problems of low efficiency of absorbing heavy metals in red jade soil, and achieve the effects of high reuse times, easy recovery of heavy metals, and high adsorption capacity.

Inactive Publication Date: 2017-05-17
HENAN BALING ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the efficiency of heavy metal adsorption by single red jade soil is low, how to simply treat it to improve the efficiency of adsorption of heavy metals is the problem to be solved in this patent

Method used

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  • Heavy metal adsorbent and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0017] In the embodiment of the present invention, a heavy metal adsorbent is composed of the following raw materials in parts by weight: 27 parts of red jadeite, 13 parts of tert-butyl chloroacetate, 2 parts of isopropanol, and 5 parts of salicylic alcohol.

[0018] Mix tert-butyl chloroacetate with 4.8 times the mass of deionized water to prepare tert-butyl chloroacetate solution. Mix and grind red jade soil and isopropanol, pass through a 120-mesh sieve, then add tert-butyl chloroacetate solution, raise the temperature to 72°C and ultrasonically treat at this temperature for 32min, the ultrasonic power is 1000W, then add salicyl alcohol dropwise, dropwise After completion, heat up to 112°C and seal and stir at this temperature for 53 minutes, then microwave for 20 minutes with a microwave power of 800W, stir at 99°C until dry, and then calcinate in a muffle furnace at 430°C for 4 hours. get the adsorbent.

[0019] Through repeated experiments, it is obtained that the adsor...

Embodiment 2

[0021] In the embodiment of the present invention, a heavy metal adsorbent is composed of the following raw materials in parts by weight: 35 parts of red jadeite, 21 parts of tert-butyl chloroacetate, 6 parts of isopropanol, and 12 parts of salicylic alcohol.

[0022] Mix tert-butyl chloroacetate with 4.8 times the mass of deionized water to prepare tert-butyl chloroacetate solution. Mix and grind red jade soil and isopropanol, pass through a 120-mesh sieve, then add tert-butyl chloroacetate solution, raise the temperature to 72°C and ultrasonically treat at this temperature for 32min, the ultrasonic power is 1000W, then add salicyl alcohol dropwise, dropwise After completion, heat up to 112°C and seal and stir at this temperature for 53 minutes, then microwave for 20 minutes with a microwave power of 800W, then stir until dry at a temperature of 101°C, and then calcinate in a muffle furnace at 430°C for 4 hours. get the adsorbent.

[0023] Through repeated experiments, it is...

Embodiment 3

[0025] In the embodiment of the present invention, a heavy metal adsorbent is composed of the following raw materials in parts by weight: 29 parts of red jade earth, 15 parts of tert-butyl chloroacetate, 3 parts of isopropanol, and 7 parts of salicylic alcohol.

[0026] Mix tert-butyl chloroacetate with 4.8 times the mass of deionized water to prepare tert-butyl chloroacetate solution. Mix and grind red jade soil and isopropanol, pass through a 120-mesh sieve, then add tert-butyl chloroacetate solution, raise the temperature to 72°C and ultrasonically treat at this temperature for 32min, the ultrasonic power is 1000W, then add salicyl alcohol dropwise, dropwise After completion, heat up to 112°C and seal and stir at this temperature for 53 minutes, then microwave for 20 minutes with a microwave power of 800W, then stir at 100°C until dry, and then calcinate in a muffle furnace at 430°C for 4 hours. get the adsorbent.

[0027] Through repeated experiments, it is obtained that ...

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Abstract

The invention discloses a heavy metal adsorbent and a preparation method thereof. The adsorbent comprises the following raw materials, by weight part, 27-35 parts of akamada, 13-21 parts of tert-butyl chloroacetate, 2-6 parts of isopropanol and 5-12 parts of saligenol. The preparation method comprises: mixing and grinding akamada and isopropanol, adding a tert-butyl chloroacetate solution, performing ultrasonic treatment, adding saligenol drop by drop, and performing sealed heating and stirring, performing microwave treatment, performing stirring till the obtained product is dried, and performing high temperature calcination to obtain the heavy metal adsorbent. The prepared adsorbent has super-high heavy metal adsorption efficiency and can be repeatedly used for more than 100 times. The heavy metal adsorbent is large in adsorption capacity and high in adsorption speed. The preparation method is simple, heavy metal can be recycled through treatment of the used adsorbent with acid, and the used adsorbent can be recycled through high temperature calcination at 450 DEG C, wherein the adsorbent can be frequently used. Desorption can be completely carried out, so that the recycle cost of heave metal is low. The adsorbent for treating heavy metal wastewater is low in treatment cost and simple in process, causes no secondary pollution, and is suitable for industrial production.

Description

technical field [0001] The invention relates to the technical field of environmental protection materials, in particular to a heavy metal adsorbent and a preparation method thereof. Background technique [0002] 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 first category is the removal of heavy metal ions in wastewater through chemical reactions, including neutralization precipitation, sulfide precipitation, ferrite co-precipitation, chemical reduction, electrochemical reduction, and polymer heavy metal collectors; The second category is the method of adsorbing, concentrating, and separating heavy metals in wastewater without changing their chemical form, including adsorption, solvent extraction, evaporation and coagulation, ion exchange, and membrane separation; the third category is by means of Methods of r...

Claims

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Application Information

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IPC IPC(8): B01J20/22B01J20/30C02F1/28
CPCB01J20/12B01J20/22C02F1/28C02F1/281C02F1/285
Inventor 不公告发明人
Owner HENAN BALING ELECTRONICS TECH CO LTD
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