are natural hydrated aluminosilicate minerals made from interlinked tetrahedra of alumina (AlO4) and silica (SiO4). Zeolite is a three-dimensional crystal structure built from the elements aluminum, oxygen, and silicon, with alkali or alkaline-Earth metals (such as sodium, potassium, and magnesium) plus water molecules trapped in the gaps between them. Zeolites form with many different crystalline structures, which have large open pores in a very regular arrangement and roughly the same size as small molecules. Today There are many natural zeolites identified in the world. Clinoptilolite, mordenite, phillipsite, chabazite, stilbite, analcime, and laumontite. For Clinoptilolite, You can know more information from our articales( What is Natural Clinoptilolite?)
Most of the common mineral zeolites are analcime, chabazite, clinoptilolite, heulandite, natrolite, phillipsite, and stilbite. An example of the mineral formula of a zeolite is Na 2Al 2Si 3O 10·2H2O, the formula for natrolite. This cation exchanged zeolites possess different acidity and catalyze several acids catalyzes. Zeolites transform to other minerals under weathering, hydrothermal alteration, or metamorphic conditions.
Synthetic zeolites hold some key advantages over their natural zeolites. It manufactures synthetic materials in a uniform phase-pure state. The materials of Synthetic zeolite are liquid alkali, silicate, aluminum, etc. It is also possible to produce zeolite structures that do not appear in nature.
Zeolite Na-A is a well-known example. (Anten chemical is a professional manufacturer of Synthetic Zeolite in China.). Since the principal raw materials used to manufacture zeolites are silica and alumina, which are among the most abundant mineral components on earth, the potential to supply zeolites is virtually unlimited.
We use Zeolites as ion-exchange beds in domestic and commercial water purification, softening, and other applications. In chemistry, zeolites are used to separate molecules (only molecules of certain sizes and shapes can pass through), and as traps for molecules so we can analyze them. We use Zeolites as catalysts and sorbents. Their well-defined pore structure and adjustable acidity make them highly active in a large variety of reactions. For example, Zeolite Na-A softening builder in detergent and soap. It is many type synthetic molecular sieve 3a,4a,5a,10x,13x,ZSM,MOL,NaY,and etc.
Mumpton describes the zeolite as a "crystalline, hydrated aluminosilicate of alkali and alkaline earth cations having an infinite, open, three-dimensional structure. It is further able to lose and gain water reversibly and to exchange extra-framework cations, both without change of crystal structure. The large structural cavities and the entry channels leading into them contain water molecules, which form hydration spheres around exchangeable cations."
are a magnet that can hold cations, like heavy metal, ammonia, low-level radioactive elements, toxins, several odors, petrochemicals, many different types of gases and a multitude of various solutions. It is a highly porous sponge with a large surface area that can absorb water up to 40% of its weight. The magic of the mineral lies at its cage structure and at its Aluminium and Silicon content which enables the mineral a high cation exchange capacity.
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- International Zeolite Association.
- British Zeolite Association
- Xiamen Zeolitemin Biotech Co.,Ltd.
- Anten Chemical Co., Ltd.
- Huiying Chemical Industrial Xiamen Co., Ltd.