Novel dehumidifying agent and making method thereof

A desiccant, a new type of technology, applied in the field of new desiccant, can solve the problems of strong corrosion, liquid generation, limited application, etc., and achieve the effect of avoiding danger and efficient dehumidification

Inactive Publication Date: 2016-05-11
袁一军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its main advantages are strong moisture absorption capacity, high moisture abso

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] Example 1: Prepare 5ml of potassium formate aqueous solution of different concentrations (see Table 1 for details), then add 10g of silica gel, the potassium formate aqueous solution is completely absorbed by the silica gel; then, the water is removed by heat treatment, and the thin layer of desiccant A to J is obtained as follows: Place it in an environment with a relative humidity of 60% and a temperature of 26 degrees for 24 hours to make the moisture absorption reach equilibrium, and then compare the weight before and after moisture absorption, and the moisture absorption amount.

[0021] Table 1

[0022] Potassium formate (g)

[0023] When the potassium formate content is too low, the moisture absorption effect is not obvious. Within 3g-36g, the moisture absorption effect is greater than 1g. The greater the amount of potassium formate, the greater the moisture absorption. However, when the mass of potassium formate exceeds 30g, the absorbent will cause excessive water...

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Abstract

The invention discloses a novel dehumidifying agent and a making method thereof. The dehumidifying agent is prepared from adsorbent of a porous structure and hydroscopic salt, wherein hole structures of the adsorbent are filled with the hydroscopic salt. The mass ratio of the hydroscopic salt to the adsorbent is (0.3-3):1. The dehumidifying agent has the advantages, such as high moisture adsorbing ability, high moisture adsorbing speed, large moisture adsorbing capacity and low separation temperature, of hydroscopic salt dehumidifying agents, and meanwhile like non-hygroscopic dehumidifying agents, the dehumidifying agent is free of hygroscopy and free of defects of hygroscopic dehumidifying agents.

Description

technical field [0001] The invention relates to a novel desiccant and its preparation method. Background technique [0002] Conventional dehumidifiers are divided into two types, one is non-humid dehumidifiers, including silica gel, molecular sieve, etc., and the other is dehumidifying dehumidifiers, such as hygroscopic salts, including calcium chloride and lithium chloride. [0003] Non-humidity desiccant, its moisture absorption mechanism is physical adsorption, because it has a large specific surface and contains a large number of micropores to absorb moisture, its main disadvantages are weak moisture absorption capacity, slow moisture absorption rate, and small moisture absorption capacity , high analysis temperature, etc., its main advantage is that no liquid is generated, and it is easy to use. [0004] And moisture dehumidifiers, such as hygroscopic salts, include calcium chloride, lithium chloride. The main mechanism is chemical absorption. Its main advantages are...

Claims

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Application Information

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IPC IPC(8): B01J20/10B01J20/16B01J20/30B01D53/02B01D53/26
CPCB01J20/103B01D53/261B01D2253/10B01D2257/80B01J20/046B01J20/10B01J20/16B01J2220/42B01J2220/4806
Inventor 袁一军
Owner 袁一军
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