Heavy metal adsorbent and preparation method and application 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 poor adsorption effect, complex raw materials, and small application range, and achieve the effect of less raw materials, low preparation process, and wide application range

Inactive Publication Date: 2018-06-19
TIANJIN KECHUANG FUXIN TECH CONSULTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing graphene-containing adsorbents still have disadvantages s...

Method used

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  • Heavy metal adsorbent and preparation method and application thereof

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Embodiment 1

[0019] A heavy metal adsorbent, the heavy metal adsorbent comprises the following raw materials in parts by weight: 6 parts of graphene flakes, 8 parts of sodium aescinate, 7 parts of sodium benzoate, 6 parts of dioctyl sodium dibutyrate, methionine 8 parts of zinc, 4 parts of phloroglucinol, 5 parts of hydrated magnesium silicate superfine powder, and 4 parts of tree ash.

[0020] A preparation method of a heavy metal adsorbent, comprising the following steps: (1) mixing sodium aescinate, sodium benzoate and zinc methionine, adding 40 parts of water, stirring and mixing evenly at 45°C, and the stirring speed is 200r / min; ( 2) Mix the product obtained in the previous step with 15 parts of 75% ethanol, then add dioctyl sodium dibutyrate sulfonate and phloroglucinol, stir and react at 70° C. for 1 hour, and the stirring speed is 125 r / min; ( 3) Mix graphene flakes, hydrated magnesium silicate superfine powder and tree ash evenly and place them at 500° C. for 30 min; grind and si...

Embodiment 2

[0022] A kind of heavy metal adsorbent, described heavy metal adsorbent comprises the raw material of following parts by weight: 17 parts of graphene flakes, 15 parts of sodium aescinate, 11 parts of sodium benzoate, 10 parts of dioctyl sodium dibutyrate sulfonate, methionine 12 parts of zinc, 11 parts of phloroglucinol, 10 parts of hydrated magnesium silicate superfine powder, and 8 parts of tree ash.

[0023] A preparation method of a heavy metal adsorbent, comprising the following steps: (1) mixing sodium aescinate, sodium benzoate and zinc methionine, adding 55 parts of water, stirring and mixing evenly at 60°C, and the stirring speed is 300r / min; ( 2) Mix the product obtained in the previous step with 25 parts of 75% ethanol, then add dioctyl sodium dibutyrate sulfonate and phloroglucinol, stir and react at 85° C. for 3 h, and the stirring speed is 200 r / min; ( 3) Mix graphene flakes, hydrated magnesium silicate superfine powder and tree ash evenly and place them at 800° ...

Embodiment 3

[0025] A heavy metal adsorbent, the heavy metal adsorbent comprises the following raw materials in parts by weight: 12 parts of graphene flakes, 11 parts of sodium aescinate, 10 parts of sodium benzoate, 9 parts of dioctyl sodium dibutyrate sulfonate, methionine 10 parts of zinc, 8 parts of phloroglucinol, 8 parts of hydrated magnesium silicate superfine powder, and 6 parts of tree ash.

[0026] A preparation method of a heavy metal adsorbent, comprising the following steps: (1) mixing sodium aescinate, sodium benzoate and zinc methionine, adding 45 parts of water, stirring and mixing evenly at 50° C., and the stirring speed is 270 r / min. (2) Mix the product obtained in the previous step with 20 parts of 75% ethanol, then add dioctyl sodium dibutyrate sulfonate and phloroglucinol, stir and react at 75° C. for 2 h, and the stirring speed is 180 r / min. (3) Mix graphene flakes, hydrated magnesium silicate superfine powder and tree ash evenly and place them at 700°C for calcinatio...

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Abstract

The invention discloses a heavy metal adsorbent and a preparation method and an application thereof. The heavy metal adsorbent comprises the following raw materials in parts by weight: 6-17 parts of flake graphene, 8-15 parts of sodium aescinate, 7-11 parts of sodium benzoate, 6-10 parts of dioctyl dibutyrate sodium sulfonate, 8-12 parts of zinc methionine, 4-11 parts of phloroglucinol, 5-10 partsof hydrated magnesium silicate micropowder, and 4-8 parts of tree ash. The heavy metal adsorbent can effectively process the heavy metal sewage, can reduce content of cadmium in a plant overground part and a underground part for soil restoration, has the advantages of good adsorption effect, less raw material, and low preparation technology, is in favor of realizing industrial production, and hasa wide application scope and good market promotional value.

Description

technical field [0001] The invention relates to an adsorbent, in particular to a heavy metal adsorbent and its preparation method and application. Background technique [0002] Heavy metal wastewater refers to wastewater containing heavy metals discharged from industrial production processes such as mining and metallurgy, machinery manufacturing, chemical industry, electronics, and instrumentation. Heavy metal (such as cadmium, nickel, mercury, zinc, etc.) wastewater is one of the most serious environmental pollution and one of the most harmful industrial wastewater to humans, and its water quality and quantity are related to the production process. Heavy metal pollution of the soil refers to human activities, the content of trace metal elements in the soil exceeds the background value, and the excessive content caused by excessive deposition is collectively referred to as soil heavy metal pollution. Soil heavy metals refer to the phenomenon that human activities add metals...

Claims

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Application Information

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IPC IPC(8): B01J20/22C02F1/28C02F101/22C02F101/20
CPCB01J20/04B01J20/20B01J20/205B01J20/22C02F1/28C02F2101/20C02F2101/206C02F2101/22
Inventor 沈静
Owner TIANJIN KECHUANG FUXIN TECH CONSULTING CO LTD
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