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Preparation method of dechlorinating agent

A dechlorination agent and dechlorination technology, applied in separation methods, chemical instruments and methods, and other chemical processes, can solve the problems of limited adsorption capacity of adsorbents, low chlorine capacity, limited dechlorination precision, etc., and achieve long service life , Strong dechlorination ability and high dechlorination precision

Active Publication Date: 2021-09-24
西安大望山化工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a preparation method of dechlorination agent, which solves the problem of limited adsorption capacity of adsorbent in the prior art, low chlorine capacity, and dechlorination Chlorine limited accuracy problem

Method used

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preparation example Construction

[0023] The preparation method of a kind of dechlorination agent of the present invention, takes by weighing activated carbon carrier, basic component and dechlorination active component, and the quality of basic component is 4~20% of activated carbon carrier, and the quality of dechlorination active component is 4-15% of activated carbon carrier, and then implement according to the following steps:

[0024] Step 1, mix and dissolve the alkaline component and the dechlorination active component in water to configure the active component solution, wherein the alkaline component is sodium carbonate, sodium bicarbonate, potassium carbonate, potassium bicarbonate, cesium carbonate, hydroxide One of sodium or potassium hydroxide; the dechlorination active components are sodium sulfite, sodium thiosulfate, potassium sulfite, potassium thiosulfate, sodium oxalate, potassium oxalate, sodium citrate, potassium citrate, vitamin C, glucose one of

[0025] Step 2, add activated carbon car...

Embodiment 1

[0033] Dissolve 10g of potassium carbonate and 10g of potassium oxalate in 65mL of water, then add 100g of activated carbon carrier, impregnate at 30°C for 2h, then dry at 80°C for 12h, cool naturally to room temperature, and spray silicon with a solid content of 10% on the surface of the product Sol 30g, dry at 30°C for 24h, then continue to spray 50g of polyethylene glycol 200 solution with a mass fraction of 1% on the surface of the product, and let it dry at room temperature to obtain the finished dechlorination agent.

Embodiment 2

[0035] Dissolve 8g of sodium carbonate and 8g of sodium sulfite in 65mL of water, then add 100g of activated carbon carrier, impregnate at room temperature for 10h, then dry at 120°C for 1h, and spray 30g of silica sol with a solid content of 10% on the surface of the product after natural cooling to room temperature , aired at 30° C. for 24 hours, then continued to spray 50 g of a polyethylene glycol 200 solution with a mass fraction of 1% on the surface of the product, and left to air at room temperature to obtain a finished dechlorination agent.

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Abstract

The invention discloses a preparation method of a dechlorinating agent. The preparation method is specifically implemented according to the following steps: mixing and dissolving an alkaline component and a dechlorinating active component in water to prepare an active component solution; adding an active carbon carrier into the active component solution at room temperature to 50 DEG C for equivalent-volume impregnation, wherein the impregnation time is 5 minutes to 10 hours; drying a product obtained after dipping for 1-24 hours at the temperature of 50-120 DEG C, and then cooling the product to room temperature; then spraying silica sol with the solid content of 3%-30%, and airing the product for 24-72 hours at the temperature ranging from normal temperature to 40 DEG C after spraying; then spraying polyethylene glycol accounting for 0.5-5% of the mass of the activated carbon carrier; and airing the product at room temperature in a ventilated place, thereby obtaining the dechlorinating agent product when the water content is detected to be less than 15%. According to the preparation method of the dechlorinating agent, the problems that in the prior art, an adsorbent is limited in adsorption capacity, low in chlorine capacity and limited in dechlorinating precision are solved.

Description

technical field [0001] The invention belongs to the technical field of gas purifiers and relates to a preparation method of a dechlorination agent. Background technique [0002] Chlorine gas is an elemental gas, a highly toxic gas with a strong pungent smell, and is suffocating. It invades the human body through the respiratory tract and dissolves in the water contained in the mucous membrane, causing damage to the upper respiratory tract mucous membrane. Inhalation of high concentrations of chlorine can stimulate the vagus nerve, causing reflex cardiac arrest or laryngospasm leading to sudden death. [0003] In chlorine plants, chlor-alkali plants, and industrial sites that use chlorine to manufacture pesticides, bleaches, disinfectants, and dehydroxylation of optical fiber preforms, industrial waste gas will contain a certain amount of chlorine gas. At present, the removal methods of chlorine mainly include water washing method and solid phase removal method. In the wate...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/30B01D53/02
CPCB01J20/261B01J20/20B01J20/103B01D53/02B01D2257/2025
Inventor 张昊杨轶
Owner 西安大望山化工科技有限公司
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