Composite oxidized particle filter material and preparation method thereof

A particle filter material and composite oxidation technology, applied in chemical instruments and methods, separation methods, filtration separation, etc., can solve problems such as clogging, lack of oxidation reaction adjuvants, incomplete chemical composition of filter materials, etc., to prevent clogging, increase The effect of moisturizing ability

Pending Publication Date: 2022-06-28
翡尔达控股(江苏)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0019] The purpose of the present invention is to provide an improved compound oxidation particle filter material to overcome the various shortcomings of the existing similar filter material, including low oxidant load capacity, oxidant crystals will block the gaps between the adsorbent and the particle filter material, and the chemical properties of the filter material Incomplete composition, lack of some auxiliary adjuvants necessary for oxidation reaction

Method used

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  • Composite oxidized particle filter material and preparation method thereof
  • Composite oxidized particle filter material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0048] A composite oxide particle filter material, the monomer is a granular sandwich sphere structure, including an inner core skeleton and an outer wrapping layer, the inner core skeleton is a glassy porous particle made by sintering, and its shape nonuniformity coefficient d60 / d10 is 1.0~ 1.5, the equivalent particle size is 3~5mm, and the specific surface area is 5.0~8m 2 / g, the apparent density is 300~400kg / m 3 . The inner core skeleton includes the following components in parts by weight: 80-85% of waste glass, 6-8% of silicon carbide as a foaming agent, and 10-12% of sodium silicate as a sintered coupling agent.

[0049] Among them, the glass is waste glass, which is processed by a crusher and a grinder to become a powder of more than 200 meshes. After adding a foaming agent and a sintering coupling agent in proportion, the particles of the desired size are formed by embryo forming and granulation, respectively. Then, it is sintered at a temperature of 800-900° C. to...

Embodiment 2

[0059] A composite oxide particle filter material, the monomer is a granular sandwich ball structure, including an inner core skeleton and an outer wrapping layer, the inner core skeleton is a ceramic porous particle made by sintering, the equivalent particle size is 2-4mm, and the specific surface area is 2-4mm. 5.0~10m 2 / g, the apparent density is 500~800kg / m 3 . The inner core framework includes the following components by weight: 80-85% mullite (containing 20-22.5% SiO 2 , 60~67.5% Al 2 O 3 , 0.1-0.8% CaO, 0.2-0.9% Fe 2 O 3 , 0.02~0.06% MnO, 0.02~0.06% P 2 O 5 , 0.05~0.075% K 2 O and 0.5 to 0.75% Na 2 O), 6-8% calcium carbonate as foaming agent, 10-12% attapulgite as sintering coupling agent.

[0060] Among them, the mullite is processed by a crusher and a grinder to become a powder of more than 200 meshes. After adding a foaming agent and a binder in proportion, the mullite is embryonic and granulated to make particles of the desired size, and then at 800 Sint...

Embodiment 3

[0071] The composite oxidized particle filter material prepared in Example 1 or 2 was loaded into the filter bed of a dry chemical adsorption filter device to obtain a dry chemical adsorption filter device. In the dry chemical adsorption filter device, the bulk density of the composite oxide particle filter material is 950kg / m 3 .

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Abstract

The invention discloses a composite oxidized granular filter material and a preparation method thereof, relates to the technical field of filter materials, and solves the technical defects that the existing filter material is low in oxidant bearing capacity, easy to block gaps of an adsorbent and a granular filter material and lack of auxiliary adjuvants. The chemical active components comprise an oxidizing agent, an adsorbent and an auxiliary adjuvant, the auxiliary adjuvant comprises an alkaline agent, the oxidizing agent comprises an oxidizing agent part A infiltrating into a core skeleton and an oxidizing agent part B mixed in a core peripheral wrapping layer, the adsorbent and the auxiliary adjuvant are mixed in the wrapping layer, and the weight ratio of the oxidizing agent part A to the core skeleton is 0.1-0.3. The weight ratio of the part B of the oxidizing agent to the adsorbent is 0.1-0.2, the weight ratio of the total weight of the part B of the oxidizing agent and the adsorbent to the core skeleton is 0.3-3, and the weight ratio of the part B of the oxidizing agent to the alkaline agent is greater than or equal to 3. The content of the oxidant in the filter material is high, and the phenomenon that the oxidant crystallizes to block adsorbent gaps is reduced under the cooperation of the alkaline agent.

Description

technical field [0001] The invention relates to the technical field of chemical adsorption filter materials, and more particularly relates to a composite inorganic porous oxide particle filter material for purifying and treating polluting waste gas generated in industrial production and living places, and a preparation method thereof. Background technique [0002] Air pollution control is an important content in the field of environmental protection engineering in my country. The exhaust gas produced by industrial and mining enterprises and urban living places contains a lot of odorous, irritating and harmful pollutants. Treat these gases. In addition, the implementation of the "Indoor Air Quality Standards" for the indoor environment also requires urban public transportation facilities (vehicles, stations, ships, docks), underground building facilities (subway stations, underground shopping malls, tunnels, and civil defense fortifications), and office buildings. Quality c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/20B01D53/81B01D53/48B01D53/52B01D53/72B01D53/44B01D53/58B01D53/02
CPCB01D39/201B01D39/2075B01D53/81B01D53/48B01D53/52B01D53/72B01D53/44B01D53/58B01D53/02B01D2251/10B01D2253/104B01D2258/06B01D2257/7027B01D2257/708B01D2257/306
Inventor 朱核光葛雪松杨冬花张金栋
Owner 翡尔达控股(江苏)有限公司
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