Abstract: Method for making a zeolite having the structure of offretite, consisting of reacting in a closed container under autogenous pressure in the absence of tetramethylammonium ions, a composition having specific mole rations of K.sub.2 O,Na.sub.2 O,SiO.sub.2, Al.sub.2 O.sub.3, and H.sub.2 O.
Abstract: Process for forming a zeolite particle in the fluidizable size range from 20 to 150 micrometers. Acid-stable, molecular sieve zeolite mordenite is formed by mixing silica-alumina gel particles in the fluidized size range with sodium silicate, sodium hydroxide, sodium chloride, and mordenite seed crystals. For example, the mixture is reacted under autogenous pressure at 180.degree. C for 24 hours.
Abstract: Synthetic Na,K-ferrierite, a molecular sieve zeolite capable of intracrystalline adsorption of molecules, is prepared by hydrothermal synthesis in the water, soda, potash, alumina, silica system. Crystallization is best achieved in the temperature range of 230.degree.-310.degree. C and autoclaving times of 2-96 hours with the use of co-precipitated silica-alumina gels and Na and K carbonates and bicarbonates.
Abstract: A test method for determining the amount of zeolite material in a sample comprising heating a weighed portion of the sample to remove adsorbed water, cooling the heated portion, adding a known quantity of water to the portion, noting the resulting temperature rise and correlating the temperature rise to the amount of zeolite material in the sample. The test can be carried out in the field with a kit which includes a weighing device.