Method for preparing novel catalytic reduction dechlorinating agent

A dechlorination agent, a new type of technology, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc. question

Inactive Publication Date: 2008-03-26
NANKAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitations of the experimental method, it is difficult to avoid the Fe 0 Coating of Ni makes part of Ni unusable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～10

[0014] These examples illustrate the Ni-Fe bimetallic composite catalytic reduction dechlorination process.

[0015] 1.0g of nano-Fe with a scale of 60nm 0 Mix with 70ml NiB electroless plating solution and stir at 35°C for 10min. The product was washed with deionized water until neutral, and then washed with absolute ethanol to remove residual moisture. After the product is dried, the dechlorinating agent A is obtained. The composition of the NiB electroless plating solution is NiSO 4 ·6H 2 O, Ethylenediamine, NaOH, KBH 4 and deionized water.

[0016] The same as the preparation process of dechlorination agent A, the nanometer Fe of about 60nm 0 Changed to 5nm nano Fe 0 , 100nm nanometer Fe 0 and 200nm nano Fe 0 , to obtain dechlorination agent B-D.

[0017] Same as the preparation process of dechlorinating agent A, change the consumption of NiB electroless plating solution, control Ni to account for 1% and 45% of the total weight of dechlorinating agent, obtain dec...

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Abstract

The present invention provides a method for preparing new-type catalytic reduction antichlor. It is a method for preparing nano Ni-Fe dimetal composite catalytic reduction antichlor. It is characterized by that said antichlor can form NiB amorphous alloy cluster on the nano ferric oxide surface so as to raise antichloration property of ferric oxide.

Description

technical field [0001] The invention relates to a preparation method of a novel catalytic reduction dechlorination agent, more specifically a method for preparing a nanometer Ni-Fe composite catalytic reduction dechlorination agent with high dechlorination efficiency. Background technique [0002] There are many kinds of chlorine-containing organic compounds, and they are also important chemical raw materials, intermediates and organic solvents, so they are widely used in chemical industry, medicine, leather, machinery, wood preservation and other industries. They enter the environment through volatilization, container leakage, wastewater discharge, use of pesticides and insecticides, and combustion of chlorinated organic products, seriously polluting the atmosphere, soil, groundwater, and surface water. Almost all chlorinated aromatic hydrocarbons and their derivatives are toxic and difficult to degrade, and many chlorinated organic compounds are listed as environmental pri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/755B01J23/745B01J21/02A62D3/34A62D101/22
Inventor 李伟韩奕张明慧陶克毅
Owner NANKAI UNIV
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