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A kind of polyphenalkamine type adsorbent and preparation method thereof

A phenalkamine type, adsorbent technology, used in chemical instruments and methods, adsorption water/sewage treatment, other chemical processes, etc. Controllable and easy to promote and use

Inactive Publication Date: 2018-01-02
QILU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The chemical precipitation method has defects such as a high degree of dependence on the pH value and is prone to secondary pollution. Other methods such as membrane separation, ion exchange and biological methods also have many problems, which limit their application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Add 80ml of deionized water, 1.0814g of p-cresol, 1.6243g of 37% formaldehyde, and 1.4619g of lysine into a 100ml beaker, and then add sodium hydroxide solution dropwise to adjust the pH to 8~9. Subsequently, the liquid in the beaker was transferred to a 250ml volumetric flask, and after reacting at 80° C. for 3 hours, the product was taken out, centrifuged, washed, and vacuum-dried. The product was used in the adsorption experiment of methylene blue, and the experiment showed that the product had a good adsorption effect on methylene blue.

Embodiment 2

[0021] Add 60ml of deionized water, 1.0794g of p-cresol, 1.4920g of 37% formaldehyde solution, 1.8265g of lysine, and 1ml of 0.01mol / L phenol into a 100ml beaker. Add sodium hydroxide solution dropwise to adjust the pH to 8-9. Subsequently, the liquid in the beaker was transferred to a 250ml volumetric flask, and after reacting at 70° C. for 4 hours, the product was taken out, centrifuged, washed, and vacuum-dried. The product is used in the adsorption experiment of hexavalent chromium, and the experiment shows that the product has a good adsorption effect on hexavalent chromium.

Embodiment 3

[0023] Add 1.0778g of p-cresol, 1.5477g of 37% formaldehyde, 3.0154g of cystine and 60ml of deionized water into the beaker. Then the pH was adjusted to 8, and transferred to a 250ml three-necked bottle. After reacting at 80°C for 4 hours, the product was taken out, centrifuged, washed and dried in vacuum. The product is used in the adsorption experiment of lead ions, and the experiment shows that the product has a good adsorption effect on lead ions.

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PUM

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Abstract

The invention discloses a poly-phenol-aldehyde amine type adsorbent and a preparation method thereof. The method comprises: adding phenol, phenol derivatives, formaldehyde and diamine into a weak-base aqueous solution, reacting at certain temperature for certain time, separating, washing and drying to obtain the poly-phenol-aldehyde amine type adsorbent having the good adsorptive property. The preparation method is simple in process, convenient to operate, controllable in technology, mild in condition, good in repeatability, low in cost and convenient to generalize and use; the prepared poly-phenol-aldehyde amine type adsorbent has the good adsorptive property, can be applied in adsorption on heavy metal ions, small dye molecules and other small organic molecules, and is wide in application range.

Description

technical field [0001] The invention relates to the technical field of chemical products, in particular to a polyphenalkamine type adsorbent and a preparation method thereof. Background technique [0002] With the rapid development of industry, the source of heavy metal waste is becoming more and more extensive. It enters the water body through many industries such as mining, metallurgy, electroplating, machinery, and chemical industry, causing heavy metal ion pollution in the water source, and enriching through the biological chain, causing great harm to the human body. hazards. Furthermore, after the polluted water source is used for agricultural irrigation, heavy metals will pollute the soil, so the treatment of heavy metal pollution is a serious issue. In addition to the effective control of heavy metal pollution sources, how to restore polluted water sources and remove heavy metal ions that have a serious impact on human health is an important problem that needs to be ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/26B01J20/30C02F1/28C02F1/62C02F1/58C08G14/06
CPCB01J20/262B01J2220/445B01J2220/4812C02F1/285C02F2101/20C02F2101/22C02F2101/308C08G14/06
Inventor 刘钦泽杨慧方姚金水魏刚乔从德
Owner QILU UNIV OF TECH