Chemical filters using metallic compounds and preparation method thereof

A chemical filter and frame technology, which is applied in the chemical filter using metal compounds and its manufacturing field, can solve the problems of increased pressure loss, metal oxide powder detachment, short filter life, etc., to prevent secondary pollutants Occurrence, reduction of pressure loss, and improvement of removal efficiency

Inactive Publication Date: 2008-11-19
KOCAT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] However, the filter manufactured by attaching the above-mentioned metal oxide to the support body by wet powder spraying method is effective under the conditions of small air volume and small physical impact on the filter, but it is used for semiconductor and In the manufacture of precision electronic instruments, under the conditions of large-volume air flow, vibration and physical shock introduced into the clean room, the problem of detachment of metal oxide powder occurs with the passage of time
In addition, when adhering to the support, when the amount of metal oxide exceeds a certain amount, the detachment of the metal oxide will be intensified, and the pressure loss will increase sharply, so the amount of metal oxide that can be attached to the support is extremely difficult to control. Compared with the method of directly forming metal oxide powder, the method of attaching metal oxide to the support has the disadvantage of short filter life due to the small amount of metal oxide that can adsorb harmful gases

Method used

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  • Chemical filters using metallic compounds and preparation method thereof
  • Chemical filters using metallic compounds and preparation method thereof
  • Chemical filters using metallic compounds and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] Sorbent Manufacture

[0070] Use a stirrer at room temperature to mix iron compounds (FeO(OH), Fe 2 o 3 ) [manufactured by KOCAT, Korea] 180g, strontium compound (Sr(OH) 2 ) [Made in Nai Nai Shoji, Korea] 100g, calcium compound (Ca(OH) 2 ) 80g, copper compound (CuSO 4 ) [Evergreen Chemical Manufacturing, Korea] 180g, manganese compound (MnO 2 ) [Naigai Shoji, Korea] 180g and zeolite [Naigai Shoji, Korea] 180g of harmful gas active substances and methyl cellulose [Samsung Fine Chemicals, Korea] 40g, alumina sol [Naigai Shoji, Korea] 50 g and 10 g of organic and inorganic binders of graphite [manufactured by Nai Nai Shoji, Korea] were mixed with 40 g of ultrapure distilled water.

[0071] Then, the above-mentioned mixture was dried at a temperature of 100° C. for about 1 hour and 30 minutes in a drying oven [manufactured by Dazhou Science and Technology Co., Ltd., Korea], and then naturally aged for about 4 hours.

[0072] Next, after the above-mentioned natural agi...

Embodiment 2

[0076] In addition to using iron compounds (FeO(OH), Fe 2 o 3 ) [manufactured by KOCAT, Korea], strontium compound (Sr(OH) 2 ) [manufactured by Nai Nai Shoji, Korea], methyl cellulose [manufactured by Samsung Fine Chemicals, Korea] in a weight ratio of 45:45:1 to replace harmful gas active substances and organic and inorganic binders, The same operation as in Example 1 was carried out.

Embodiment 3

[0078] In addition to using copper compounds (CuSO 4 )[manufactured by Evergreen Chemical, Korea], iron compounds (FeO(OH), Fe 2 o 3 ) [manufactured by KOCAT, Korea], methyl cellulose [manufactured by Samsung Fine Chemicals, Korea] in a weight ratio of 70:20:10 to replace harmful gas active substances and organic and inorganic binders, and Example 1 was operated in the same manner.

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Abstract

The invention provides a chemical filter using a metal compound and a manufacturing method thereof, efficiency of removing poisonous gas and life of the chemical filter can be increased without leaking out the gas adsorbed by strong chemical bonding force of the metal compound and the poisonous gas by manufacturing an adsorbent for the chemical filter using metal oxide, metal hydroxide, metallic salt, or a mixture of those. The invention provides an adsorbent for the chemical filte, characterized by including 10-99 wt.% of metal oxides, metal hydroxide, a metal salt or a mixture of those and 1-90 wt.% of an organic or inorganic bonding agent or a mixture of those.

Description

[0001] This application is a divisional application of the application dated March 29, 2006, the application number 200610071493.3, and the title of the invention is "Chemical filter using metal compound and its manufacturing method". technical field [0002] The present invention relates to a chemical filter used to filter and remove chemical substances in the air, and more specifically, to a chemical filter used to filter and remove gaseous substances flowing into clean rooms of semiconductor, precision electronic parts, pharmaceutical and food manufacturing plants, as well as flow into Adsorbents for metal compounds containing harmful gases in the air of air conditioners and room air cleaners in the general industrial field, chemical filters using the adsorbents, and methods for producing the same. Background technique [0003] Semiconductor manufacturing processes, precision products or electronic product manufacturing processes, etc. are generally carried out in a clean ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/04B01D46/30
CPCB26B3/00B26B9/00
Inventor 吴玄明李贤基李到禧李镇九金斗晟李庆振韩永德张三德
Owner KOCAT
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