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New reference materials support industrial zeolites
September 18, 2006The National Institute of Standards and Technology (NIST) has issued three new reference materials to support researchers studying the properties of commercially important zeolites.
First described in the 18th century, zeolites have seen increasing use in industry and commerce from cat litter to industrial catalysts and "molecular sieves." Zeolites belong to class of materials called alumino-silicates whose crystal structures form highly porous, nanoscale "cages" that can filter and trap small molecules. Naturally occurring zeolites are mined and widely used as absorbents in products such as cat litter. Tailored synthetic zeolites have a wide variety of more specialized applications, such as in laundry detergents (where they replace pollution-causing phosphates), and as catalysts in oil refineries. Because they can be designed with pores that pass only molecules of a certain size and shape, zeolites have excited considerable interest as molecular sieves for chemical separations-they are used in oxygen generation systems for medical oxygen, for example.
It is often extremely difficult to make precision measurements of key chemical characteristics for zeolites because they are ferociously hygroscopic. Humidity must be precisely controlled-and specified-to make meaningful measurements of the elemental content, for example. This has made it difficult to compare experimental results between different labs.
To provide a common basis for research on three widely used industrial zeolites, NIST has issued reference materials for Zeolite Y (RM 8850), Zeolite A (RM 8851) and Ammonium ZSM-5 Zeolite (RM 8852). While these materials do not come with the certified property values and uncertainty estimates furnished with NIST Standard Reference Materials (SRMs), these RMs do provide a common source of zeolite materials for measurement comparisons. Reference and information values are provided for major and trace element content, key atomic ratios, enthalpy of formation, unit cell parameters and particle size distributions.
National Institute of Standards and Technology (NIST)
To provide a common basis for research on three widely used industrial zeolites, NIST has issued reference materials for Zeolite Y (RM 8850), Zeolite A (RM 8851) and Ammonium ZSM-5 Zeolite (RM 8852). While these materials do not come with the certified property values and uncertainty estimates furnished with NIST Standard Reference Materials (SRMs), these RMs do provide a common source of zeolite materials for measurement comparisons. Reference and information values are provided for major and trace element content, key atomic ratios, enthalpy of formation, unit cell parameters and particle size distributions.
National Institute of Standards and Technology (NIST)
Zeolites Current Events and Zeolites News RSSRice U. lab leads hunt for new zeolites
In all the world, there are about 200 types of zeolite, a compound of silicon, aluminum and oxygen that gives civilization such things as laundry detergent, kitty litter and gasoline. But thanks to computations by Rice University professor Michael Deem and his colleagues, it appears there are -- or could be -- more types of zeolites than once thought.
Rapid heating prepares energy-saving zeolite for greater role in industrial separations
Thin-film zeolite membranes with tiny, molecule-sized pores are one step closer to replacing the energy-intensive processes now used in industrial separations, a group of academic researchers is reporting.
University of Minnesota researchers discover breakthrough method for chemical separations
A team of researchers, led by chemical engineering and materials science professor Michael Tsapatsis in the University of Minnesota's Institute of Technology, have developed a more energy-efficient method of chemical separations that could revolutionize processes in the petrochemical and biofuels industries.
Membrane breaks through performance barrier
Engineers have developed a new method for creating high-performance membranes from crystal sieves called zeolites; the method could increase the energy efficiency of chemical separations up to 50 times over conventional methods and enable higher production rates.
New materials can selectively capture carbon dioxide, UCLA chemists report
UCLA chemists report a major advance in reducing heat-trapping carbon dioxide emissions in the Feb. 15 issue of the journal Science.
Rice takes zeolite design into 21st Century using teragrid
A room's design helps define how people interact inside it, and it's much the same in the molecular world. The atomic layout of molecular spaces can provoke very different reactions from chemicals that meet there, in much the way that an intimate bistro and a bustling cafeteria might evoke different interactions among dinners.
Crystal sieves, born anew
The porous, sieve-like minerals known as zeolites have been used for decades in purifiers, filters and other devices.
Innovative nanomaterials processing points to advances in semiconductor optoelectronics
The study of semiconductor nanoparticles embedded in a matrix is currently a very active research area. These small particles have physicochemical properties quite different from those in the bulk material.
Absorbent materials for the storage of hydrogen
A research team from the Public University of Navarra has started a study of the design and development of absorbent materials that enable the storage of hydrogen, a clean fuel that can be used as an alternative to those derived from fossil fuels, such as petrol and diesel.
CrystalMaker Software wins 2004 eTrading Award for the South East
CrystalMaker Software Ltd, an Oxford company producing innovative software to visualize crystal and molecular structures, has won the eTrading category of the 2004 South East England eCommerce Awards. The 2004 eTrading Award was presented to Dr David Palmer, CrystalMaker Software's Managing Director, by David Sumner Smith, Enterprise Network Editor of the Sunday Times during a gala luncheon held recently. The eTrading Award citation praised the success of this small, British company, selling highly-specialised software direct to a worldwide market - with sales to 33 countries spread across 5 continents and including the world's major universities and research labs.
More Zeolites Current Events and Zeolites News Articles
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Super Z-lite Liquid 2 Oz Bottle by OmicaOrganics.com Our supercharging process activates and transforms the natural volcanic silicate mineral zeolite through the addition of ocean plant derived ionic trace minerals combined with the humic/fulvic acids to become a highly bio-available and potent complex. Our research reveals that the effectiveness of all of our minerals is enhanced, balanced and diversified in their effects due to our supercharging process. After this mineral complex incubates and bonds together, we can use this supercharged mineral complex to extract our Super-z-lite liquid extract without the use of solvents and chemicals which would normally be required under natural conditions. |
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ZEOLITE PURE - 440 gram container by ZEO Health Ltd. ZEOLITE PURE is the amazing all natural mineral Zeolite that has been proven to absorb the toxins, free radicals, and heavy metals from your body, as well as boosting the immune system. This mineral will also balance the bodys pH. Foreign cells can not grow in a balanced pH environment. For those not wanting to take capsules, this is pure powdered Zeolite in an economical 440 gram container. |
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Simple Solution Natural Pet Odor Eliminating Zeolite Crystals, 16-Ounce Pouch by Simple Solution A 100-percent natural zeolite volcanic mineral with an ionic charge that attracts odors. Millions of micro-sized pores in this natural mineral provide superior odor absorption and long-lasting results. Completely removes pet odors from carpets, crates, litter boxes, pet bedding and floor surfaces. Place or hang pouch in odorous area. Allow four to six hours for complete removal of orders. After six months of use, or as needed, regenerate pouch by placing in the sun or dry environment for six or more hours, this will completely recharge the mineral to work like new again. |
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Chemistry of Zeolites and Related Porous Materials: Synthesis and Structure by Ruren Xu (Author), Wenqin Pang (Author), Jihong Yu (Author), Qisheng Huo (Author), Jiesheng Chen (Author) Widely used in adsorption, catalysis and ion exchange, the family of molecular sieves such as zeolites has been greatly extended and many advances have recently been achieved in the field of molecular sieves synthesis and related porous materials. Chemistry of Zeolites and Related Porous Materials focuses on the synthetic and structural chemistry of the major types of molecular sieves. It offers a systematic introduction to and an in-depth discussion of microporous, mesoporous, and macroporous materials and also includes metal-organic frameworks. Provides focused coverage of the key aspects of molecular sieves Features two frontier subjects: molecular engineering and host-guest advanced materials Comprehensively covers both theory and application... |
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Waiora Natural Cellular Defense Liquid Zeolite NCD 4 bottles by Waiora Waiora Natural Cellular Defense Liquid Zeolite NCD 4 bottles |
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ZEOLITE-AV - Scientifically Proven Natural Antiviral - 90 Capsule Bottle by ZEO Health Ltd. ZEOLITE-AV is a breakthrough formula which contains 2 powerful all natural ingredients which have been proven to absorb the toxins, free radicals, and metals from your body, act as an antiviral, balance the pH in the body, and boost the immune system. ZEOLITE-AV is a one-two punch in the fight for good health. The Zeolite is mined specifically for human consumption and under top quality control. This is the form of Zeolite shown effective in all of the scientific studies. Our Humic ingredient is a proprietary concentrated product not found anywhere else on earth. This specific Humic Acid has been shown in independent studies to coat and isolate the virus before it can attach to the cell and multiply. No other natural product can compare. |
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Simple Solution Natural Litter Odor Eliminating Zeolite Granules, 32-Ounce Canister by Simple Solution A 100-percent natural zeolite volcanic mineral with an ionic charge that attracts odors. Millions of micro-sized pores in this natural mineral provide superior odor absorption and long-lasting results. Completely removes pet odors from carpets, crates, litter boxes, pet bedding and floor surfaces. Sprinkle lightly onto problem area and wait 24 hours or more to vacuum or sweep and repeat if necessary. If treating litter boxes, sprinkle lightly into a clean litter box, add litter then sprinkle granules again. Reapply after each scooping. |
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Zeolite Enhanced with DHQ - 1 oz - Liquid by Zortho (call for pricing) |
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Zeolite: Nature's Heavy Metal Detoxifier by Howard Peiper (Author) Each year, people all around the world are exposed to thousands of toxic chemicals and pollutants in air, water, food and soil. Too many people carry within their bodies a chilling "chemical cocktail" made up of food additives, industrial chemicals, heavy metals and the residues of pharmaceuticals and illegal drugs. To assure we maintain a state of good health, these toxins must be dealt with. This book will show you how Zeolite, an age-old substance derived from nature, has been shown to benefit the following: stops acute and chronic diarrhea, binds with and removes free radicals in the body, raises the body's antioxidant levels, helps alkalize to achieve the proper pH, binds mycotoxins - forming stable complexes, aid in heavy metal and chemical detoxification, binds radioactive... | |
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Destroxin - Amazing Zeolite Supplement - 90 caps by Zeo health Destroxin contains an amazing all natural, FDA approved as safe, mineral that has been proven to remove the toxins, free radicals and heavy metals from your body. This is the form of Zeolite that has been shown to be effective in all of the scientific studies (including against certain types of cancer). This is accomplished by balancing the ph in the body to creating an environment where these radical cells can not survive. Indications Acute health issues and detoxification needed. Ingredients Zeolite, Calcium carbonate, B-12 Directions Take 6 capsules 3 times the first day with water. Then continue with 2 capsules twice a day |
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