The spin-lattice relaxation time T\ of 2 , N a N M R in dehydrated zeolite NaY has been measured from 26 to 300 K. The magnetization recovery curve is not single-exponential at all measured temperatures and 1 increases in proportion to the square of temperature above 200 K. The result is analyzed with a theory of the Raman process based on covalency. The value of T\ is compared with that of NaX...

Herein, optimization of zeolite NaA/NaX synthesis conditions in order to obtain the final product with high surface area and pore volume was investigated. An optimal condition 5 days aging time crystallization 9 h co-addition cetyltrimethylammonium bromide (CTAB) heptane. All those provided mixed phase between NaA NaX, addition organic phases improved synthesized zeolite. The role CTAB heptane ...

Sulfur-containing organic and inorganic compounds are the main harmful component of natural gas oil, as well products their processing. Since sulfur have acidic properties, content leads to corrosion technological parts in production processes. The hydrogen sulfide transported should not exceed 20 mg/m3. In Uzbekistan, motor vehicles run mainly on liquefied gas. Sulfur corrode cylinders, result...

Selecting suitable materials to adsorb the C4F7N mixtures decomposition products could not only keep stable operation of environmentally friendly insulating gas switch cabinet, but also ensure safety and maintenance personnel. It is necessary study interaction three types molecular sieves with mixture its products, which provide a theoretical basis for selection adsorbents in cabinet. In this r...