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Modified natural stilbite used as hollow glass adsorbent and preparation method thereof

A technology of stilbite and adsorbent, which is applied in the field of modified natural stilbite and its preparation, can solve problems such as the complex production process of zeolite adsorbent, and achieve the effects of abundant reserves, high grade and low cost

Inactive Publication Date: 2012-06-27
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production process of 3A zeolite adsorbent is relatively complicated. After the raw zeolite powder undergoes cation exchange, a certain binder is added to form and crystallize, and a spherical adsorbent with a certain size is obtained, which has certain environmental and energy consumption problems.

Method used

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  • Modified natural stilbite used as hollow glass adsorbent and preparation method thereof
  • Modified natural stilbite used as hollow glass adsorbent and preparation method thereof
  • Modified natural stilbite used as hollow glass adsorbent and preparation method thereof

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Embodiment Construction

[0025] Further describe the present invention by embodiment below:

[0026]

[0027] Taking Example 1 as an example, first prepare 0.1 mol / L NH 4Cl solution, the pulverized STI zeolite raw powder was exchanged at 80°C for 4 times at a solid-to-liquid ratio of 1:10, each time for 2 h, after drying, it was roasted in a tube furnace at 200°C for 3 h to obtain the Invention of the STI zeolite hollow glass adsorbent. After testing, the STI zeolite hollow glass adsorbent has a good moisture absorption effect, and the moisture absorption rate of the zeolite can reach 15.3% at a relative humidity of 75.1%, see image 3 , Figure 4 shown. The STI zeolite hollow glass adsorbents obtained in the remaining examples all have similar properties.

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Abstract

The invention belongs to the technical field of chemical adsorbents and specifically relates to a modified natural stilbite used as a hollow glass adsorbent and a preparation method thereof. As a raw material, natural STI zeolite undergoes ammonium solution exchange to obtain NH4-STI zeolite. Then, NH4-STI zeolite undergoes high temperature calcination to obtain H-STI zeolite. Hygroscopicity of the zeolite at relative humidity of 75.1% can reach 15.3%. The zeolite can be used as an excellent high-efficiency hollow glass adsorbent. Natural mineral resources used in the invention have advantages of high grade, abundant reserves and low exploitation cost. Simultaneously, the method for preparing the STI zeolite hollow glass adsorbent is simple and requires low cost. The modified natural stilbite used as the hollow glass adsorbent has a very wide application prospect in the field of building materials.

Description

technical field [0001] The invention belongs to the technical field of chemical adsorbents, and in particular relates to a modified natural stilbite used as an adsorbent for hollow glass and a preparation method thereof. Background technique [0002] Insulating glass refers to a product that consists of two or more pieces of glass that are evenly spaced with effective support and bonded and sealed around the periphery, so that a dry gas space is formed between the glass layers. Insulating glass is mainly composed of frame, glass, sealant, desiccant, etc. (as attached figure 1 shown). Because the gas inside the insulating glass is dry, it usually has seven advantages: (1) superior energy-saving effect; (2) high sound insulation; (3) eliminate frost and dew; (4) high wind pressure resistance; (5) glass is not easy Self-explosion; (6) The coating layer will not fall off; (7) The original glass sheet will not break, which is a safe and effective energy-saving product. With th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/16B01J20/30B01D53/28
Inventor 程晓维龙英才
Owner FUDAN UNIV
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