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ProductsEngaged in the research, development, and production of molecular sieves; in May 1994, a binder-free 5A hydrogen‑producing molecular sieve production line was commissioned and put into operation; in 2005, it passed environmental protection acceptance by the Henan Provincial Environmental Protection Department; in 2006, it obtained ISO 9001:2000 quality management system certification...
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Mengzi5A molecular sieve
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Product Description
Basic Information
Chemical formula: 3/4CaO·1/4Na 2 O·Al 2 O 3 · 2 SiO 2 ·9/2H 2 O
Silicon-to-aluminum ratio: SiO 2/AI2 O 3 ≈2
Effective pore size: approximately 5 Å
Introduction
5A molecular sieve can adsorb any molecule smaller than its pore size and is commonly referred to as a calcium‑type molecular sieve. In addition to the functions of 3A and 4A molecular sieves, it can also adsorb n‑paraffins with carbon numbers C3–C4, ethyl chloride, ethyl bromide, butanol, and other compounds, making it suitable for the separation of normal and isomeric hydrocarbons, pressure swing adsorption, and the co‑adsorption of water and carbon dioxide.
Main uses
This sieve operates at the molecular level, enabling the absorption of substances. It can adsorb up to 22% of its own weight in water. Its adsorption mechanism is similar to that of chromatography, except that it does not alter the molecular composition of the substances involved.
1. Natural gas drying, desulfurization, and carbon dioxide removal;
2. Nitrogen–oxygen separation and nitrogen–hydrogen separation for the production of oxygen, nitrogen, and hydrogen;
3. Dewaxing of petroleum and separation of normal paraffins from isoparaffins and cycloparaffins.
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