Chemistry & Chemical Technology. – 2014. – Vol. 8, No. 4

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The scientific-technical journal

It is the scientific-technical journal in English in Ukraine discussing actual problems of chemistry and chemical technology. Compared with other chemical journals Ch&ChT is publishing materials of both theoretical and practical values in such fields as analytical, general organic, physical and inorganic chemistry; chemistry of high molecular compounds; materials science and engineering; chemical kinetics and catalysis; technology of inorganic substances; technology of organic synthesis products; chemical technology of processing of combustible minerals; processes and apparatus of chemical and food productions; biotechnology and ecology.

Chemistry & Chemical Technology : [the scientific-technical journal] / Lviv Polytechnic National University ; editor-in-chief M. Bratychak. – Lviv : Publishing House of Lviv Polytechnic National University, 2014. – Volume 8, number 4. – P. 371–485, V : ill.

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    Kinetics of langbeinite conversion into schenite in the presence of mirabilite, sylvine and water
    (Publishing House of Lviv Polytechnic National University, 2014) Artus, Maria; Kostiv, Ivan
    The conversion of langbeinite into schenite has been investigated under isothermal conditions within 273–333 K in the presence of mirabilite, sylvine and water The reaction rate has been determined at various temperatures and “apparent” activation energy has been examined within 293–303 K. The reaction order by langbeinite has been determined as well. Досліджено конверсію лангбейніту в присутності мірабіліту, сильвіну та води в ізотермічних умовах за температури 273–333 К в шеніт. Визначено швидкість процесу за різної температури, «уявну» енергію активації за температури 293–303 К, а також порядок реакції за лангбейнітом.