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Modified carbon nanometer coating used for scale inhibition of inner member of rectifying tower

A rectifying tower, carbon nanotechnology, applied in coating, metal material coating process, fractionation and other directions, to achieve good scale inhibition effect and small investment effect

Active Publication Date: 2015-04-08
BEIJING CYCLE COLUMBUS ENVIRONMENTAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of equipment structure in the existing high ammonia nitrogen, high-salt wastewater treatment process that is easy to scale; thereby provide a kind of carbon nano-coating material used for surface modification of rectification column internals, the material It can prevent the deposition of calcium carbonate, magnesium carbonate, calcium hydroxide, magnesium hydroxide, calcium sulfate, calcium phosphate and heavy metal hydroxides on the internal parts of the rectification tower. It has the characteristics of small thickness and high temperature resistance

Method used

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  • Modified carbon nanometer coating used for scale inhibition of inner member of rectifying tower

Examples

Experimental program
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Effect test

Embodiment 1

[0021] For the water quality where the scaling substances are mainly calcium, the surface area is 3m 2 The rectification column tray is nano-coated, the specific process is as follows:

[0022] 1) Preparation of raw materials: Under the condition of ice-water bath, take bis-diphenylphosphinemethane and dimercaptomethane according to the mass ratio of 40:1 and mix them evenly, and store them in the ice-water bath;

[0023] 2) Preparation of modified carbon nanomaterials: take 0.3 g of the mixed solution obtained in step 1), inject it into an argon atmosphere tube furnace at a rate of 0.1 g / min using a metering pump, and heat it rapidly to 1000-1300 °C, at this time the raw material solution Complete gasification, keep the residence time of the gasification in the tube furnace for 3 minutes in this step;

[0024] 3) Chemical vapor phase in-situ deposition: place the tray in an argon atmosphere tube furnace, control the temperature at 1000°C, pass the vaporized product obtained ...

Embodiment 2

[0028] For the water quality where the scaling substance is mainly magnesium, the surface area is 100m 2 The rectification column packing is nano-coated,

[0029] The specific process is as follows:

[0030] 1) Preparation of raw materials: Under the condition of ice-water bath, take bis-diphenylphosphinemethane and dimercaptomethane according to the mass ratio of 1:10 and mix them evenly, and store them in the ice-water bath;

[0031] 2) Preparation of modified carbon nanomaterials: take 10 g of the mixed liquid obtained in step 1), inject it into an argon atmosphere tube furnace at a rate of 200 g / min using a metering pump, and heat it rapidly to 1000° C., at which point the raw material liquid is completely vaporized, Keep the residence time of the vaporized product in the tube furnace for 2 seconds in this step;

[0032] 3) Chemical vapor in-situ deposition: place the tray in an argon atmosphere tube furnace, control the temperature at 500°C, pass the gasified product ob...

Embodiment 3

[0036] For the water quality where the scaling substances are mainly calcium and magnesium and contain heavy metals, the surface area is 10m 2 The liquid distributor of the rectification tower is treated with nano-coating, the specific process is as follows:

[0037] 1) Preparation of raw materials: Under the condition of ice-water bath, take bis-diphenylphosphinemethane and dimercaptomethane according to the mass ratio of 1:1 and mix them evenly, and store them in the ice-water bath;

[0038] 2) Preparation of modified carbon nanomaterials: Take 1 g of the mixed liquid obtained in step 1), inject it into an argon atmosphere tube furnace at a rate of 10 g / min using a metering pump, and heat it rapidly to 1200 ° C, at this time the raw material liquid is completely vaporized, Keep the residence time of the vaporized product in the tube furnace for 30 seconds in this step;

[0039] 3) Chemical vapor in-situ deposition: place the tray in a hydrogen atmosphere tube furnace, contr...

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Abstract

The invention relates to a preparation method of a phosphor and sulfur modified carbon nanometer coating material used on the surface of inner members of a rectifying tower. The method comprises the following steps: mixing bismethane and dimercapto methane according to proportion; injecting the mixture into an argon atmosphere tubular furnace, and heating to 100-1300 DEG C for gasification; then carrying out chemical vapor deposition in a hydrogen or argon tubular furnace to directly generate the phosphor and sulfur modified carbon nanometer coating on the surface of the inner members of the rectifying tower; and fixing the coating through rapid cooling. The phosphor and sulfur modified carbon nanometer coating obtained by the method can effectively prevent fouling of calcium, magnesium and heavy metals on the surfaces of the inner members of the rectifying tower in a waste water treatment process, and solves the problems of frequent cleaning and maintenance of the rectifying tower caused by fouling.

Description

field of invention [0001] The present invention relates to a rectification tower filler and a coating material for the surface of the tray, in particular to a rectification tower filler and tray that can be used in the treatment of high-salt, high-alkali, high-calcium-magnesium and waste water containing heavy metals anti-fouling coating material. Background technique [0002] In the production process of metallurgy, chemical industry, chemical fertilizer, food processing, electroplating and other industries, a large amount of high-concentration ammonia nitrogen wastewater is often produced. Because the concentration of ammonia nitrogen in this wastewater can reach 3000-80000mg / L and the concentration of inorganic salt is high, it is difficult to use general Biological methods are used for treatment, so physical and chemical methods are often used for treatment. Patent 200710099139.6 discloses a method for treating non-ferrous metal processing wastewater containing ammonia ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D1/00C23C16/44B01D3/14B01D3/32B01J19/02B01J19/30
Inventor 孟华黄玲华刘晨明林晓
Owner BEIJING CYCLE COLUMBUS ENVIRONMENTAL SCI & TECH
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