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A kind of water rectification packing with surface micro-nano structure and preparation method thereof

A technology of nanostructure and water polishing, applied in chemical instruments and methods, fractionation, chemical/physical/physicochemical processes, etc., can solve the problems of height and volume, reduce investment cost and energy consumption, and increase effective mass transfer area, the effect of reducing packing height

Active Publication Date: 2022-07-05
INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, after the surface treatment of the filler, the separation efficiency of the filler in the water-containing system has been improved by about 10-30%. After surface modification, the separation efficiency of the packing for water rectification has been greatly improved, and the separation efficiency has increased by 84.2% to 141.7%. Water rectification packing for further improvement

Method used

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  • A kind of water rectification packing with surface micro-nano structure and preparation method thereof
  • A kind of water rectification packing with surface micro-nano structure and preparation method thereof
  • A kind of water rectification packing with surface micro-nano structure and preparation method thereof

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preparation example Construction

[0038] A preparation method of a water rectification packing with surface micro-nano structure, the method is suitable for bulk packing and structured packing, and the steps include:

[0039] S1: Use a degreasing agent or an organic solvent to degreasing and degreasing the raw material of the water rectification filler;

[0040] S11: Select a degreasing agent or an organic solvent according to the content of oil stains on the surface of the water rectification filler material, wherein the degreasing agent is tridecyl ether polyoxyethylene, Triton X-100, α-phenylmethyl-ω-[ (1,1,3,3-Tetramethylbutyl)phenoxy]-poly(oxy-1,2-ethylene), methyloxirane and monooctylphenyl ether branched epoxy The mass fraction of ethane polymer, 10-ethoxy-9,9-dimethyl-1-decylamine, sodium xylene sulfonate, and polyoxyethylene octyl phenol ether is 0.1% to 20% The aqueous solution; the organic solvent is a water-soluble organic solvent or a mixture of a water-soluble organic solvent and water;

[0041...

Embodiment 1

[0052] Immerse the 2×2mm Dixon water rectification packing in 200ml acetone solution, use ultrasonic cleaning for three times to remove the grease attached to the surface, and then wash with deionized water three times to remove the residual acetone on the surface of the packing; then wash the Dixon water after cleaning. The rectification packing is placed in the plasma cleaning device, and the air in the plasma is pumped to 100pa under air conditions to realize glow discharge and hydroxylate the surface of the Dixon water rectification packing; then the Co(NO 3 ) 2.6 H 2 O was dissolved in 250ml of solution, glycine and urea were added, and Co(NO 3 ) 2.6 H 2 The mass ratios of O, glycine and urea were 1:0:1, 1:0.5:1.1 and 1:1:1.2, respectively, and the mixed solutions obtained under different ratios were recorded as M1, M2 and M3, respectively; the surface hydroxylated The Dixon water rectifying fillers were placed in the mixed solutions of M1 to M3, and after stirring su...

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Abstract

The invention discloses a water rectification filler with a surface micro-nano structure and a preparation method thereof. The material of the water rectification filler is metal, and the surface of the filler is composed of high surface energy crystal planes of variable valence metal hydroxides. Micro-nano structure; the preparation method includes three steps: degreasing and degreasing the water rectification filler raw material, surface hydroxylation treatment of the water rectification filler raw material, and micro-nano structure treatment on the surface of the water rectification filler raw material. The water rectification packing with surface micro-nano structure disclosed by the invention is a brand-new water rectification packing, and its separation efficiency is greatly improved, and the water rectification packing of the invention can reduce the packing height of the water rectification device, Miniaturize the water distillation unit and reduce investment cost and energy consumption.

Description

technical field [0001] The invention belongs to the field of water rectification filler surface treatment, in particular to a water rectification filler with a surface micro-nano structure and a preparation method thereof. Background technique [0002] Water rectification technology is widely used in the production of heavy water, heavy oxygen water and deuterium-depleted water. Tritium removal from tritium-containing wastewater from inland nuclear power plants, tritium removal from tritium-containing wastewater from spent fuel reprocessing plants, and tritium removal from fusion reactor cladding cooling water, etc. There are huge application prospects in the field. Due to the extremely small relative volatility between light water / heavy water / heavy oxygen water / tritiated water, the production process of water rectification requires a large number of theoretical plates, a high reflux ratio, a large device, and a need for multi-column cascades. The investment cost and Energy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/30B01D3/32
CPCB01J19/30B01D3/32B01J2219/30408B01J2219/318
Inventor 陈超李佳懋彭述明钱达志王和义黄洪文肖成建王鑫侯京伟陈晓军岳磊赵林杰付小龙冉光明龚宇王君妍杨茂夏修龙
Owner INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
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