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Preparation method of triazine ramification inserting layer laminated clay heavy metal catching agent and application

A technology of heavy metal scavenger and triazine derivatives, which is applied in the direction of non-metallic elements, chemical instruments and methods, silicon compounds, etc., and can solve problems such as complex composition of treatment agents

Inactive Publication Date: 2014-03-26
HENAN ZHONGHE MINING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Based on the above results, it can be seen that the composition of the above treatment agents is relatively complex, and all of them need to be filtered after treatment.

Method used

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  • Preparation method of triazine ramification inserting layer laminated clay heavy metal catching agent and application
  • Preparation method of triazine ramification inserting layer laminated clay heavy metal catching agent and application
  • Preparation method of triazine ramification inserting layer laminated clay heavy metal catching agent and application

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0026] Preparation of Illite Intercalated with Mercapto-triazine Derivatives

[0027] 1. Weigh 30g of 800 mesh illite powder, put it into a 250ml three-necked bottle with a stirring thermometer and a condenser, and add 40% sulfuric acid, sulfuric acid: water = 40:60 (W / W) 80g , heat up to 115°C, heat preservation reaction for 5 hours, filter and wash the filter cake until PH = 6, after drying, it can be seen from elemental analysis that the content of potassium in illite is reduced from 7.5% to 3.05%, and XRD diffraction analysis is done at the same time. It can be seen from the diffraction pattern that the illite crystal structure remains intact, but the interlayer spacing has increased significantly, as shown in figure 1 shown.

[0028] 2. Weigh 10g of the illite prepared above after potassium extraction, put it into a three-necked bottle with a stirring thermometer and a condenser, add 90ml of water, raise the temperature to 40°C under stirring, and slowly add 4.5g of ethy...

example 2

[0032] Application Experiment of Intercalation of Illite with Mercapto Triazine Derivatives

[0033] Prepare lead nitrate to contain lead 10ppm, 20ppm, 40ppm, 80ppm, 160ppm, take out 50ml each, add 0.5g of the mercaptoazine derivatives prepared above to intercalate illite, and adjust the pH to 8.5-9 at the same time. After fully stirring for 30 minutes, filter statically and detect with an ICP instrument. The result is that when the lead ion concentration is less than 80ppm, the lead concentration after treatment is less than the detection limit, and the detection value of 160ppm lead solution is 0.225ppm after treatment. Reached 97.18%.

example 3

[0035] Comparative application of mercapto-triazine derivative intercalation illite and Schwittmannite

[0036] Take two prepared 50ml solutions with a lead ion concentration of 8ppm, add the mercaptotriazine derivative intercalation illite of the present invention and 0.5g of the commercially available Schwittmanite treatment agent respectively, and do a comparative experiment. After stirring for 30 minutes under the condition of pH=10, let it stand for 1 hour, filter and not filter respectively, and compare and detect. Test result table 1:

[0037] Table 1 The effect of thiolated triazine derivatives intercalating illite and Schwittmannite to remove lead ions

[0038]

[0039] From this table 1 find out that mercapto triazine derivative intercalation illite of the present invention does not filter effect and is obviously higher than unfiltered Schwittman stone treatment liquid, still higher than Schwittman stone treatment liquid after filtering, thus can It can be seen ...

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Abstract

The invention relates to a preparation method of triazine ramification inserting layer laminated clay heavy metal catching agent and an application. The preparation method comprises the steps of firstly displacing potassium ions in laminated clay by using inorganic acid or quaternary ammonium salt under certain temperature and certain concentration of a displacer; carrying out intercalation on the laminated clay of the potassium ions after displacing, carrying out reaction on the primary amine in the laminated clay after intercalation and cyanuric chloride, and thus preparing triazine intercalation ramification ramification layer laminated clay; carrying out reaction on the triazine intercalation ramification ramification layer laminated clay and sodium sulfide so as to obtain sulfhydrylation triazine ramification inserting layer laminated clay heavy metal catching agent. The sulfhydrylation triazine ramification inserting layer laminated clay is singly applied in heavy metal sewage treatment or is applied by combining with the existing schwertmannite and has remarkable effect. The preparation method of the triazine ramification inserting layer laminated clay heavy metal catching agent and the application provided by the invention have the outstanding characteristics that compared with the existing processing agent, the removal rate of ions such as heavy metal lead, arsenic and cadmium in the water can achieve more than 96.3% without filtering, and the purposes that the labor is saved and the time is saved are achieved in the industrial application of processing the sewage containing heavy metal.

Description

technical field [0001] The invention belongs to the technical field of layered clay mineral modification, especially illite intercalation modification used as a treatment agent for heavy metals in sewage, and specifically relates to a preparation method and application of a triazine derivative intercalated layered clay heavy metal scavenger . Background technique [0002] The sources of heavy metal pollution are mainly through the atmosphere, soil and water, and heavy metal pollution in water is the most important source of harm to human beings. Heavy metals mainly refer to fourteen elements including lead, mercury, chromium, cadmium, zinc, nickel, arsenic, copper, iron, barium, antimony, beryllium, thallium, and barium. Heavy metal pollution mainly comes from industrial mining, smelting, processing and commercial manufacturing activities of heavy metals, which are increasing day by day. Heavy metal pollution is listed as the first pollutant in all countries in the world, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/12B01J20/30C01B33/44C02F1/28C02F1/62
Inventor 蔡清江熊先银王元彬张文静张志红李鹏博
Owner HENAN ZHONGHE MINING CO LTD
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