Search academic texts

Information × Registration Number 0222U000132, 0121U100515 , R & D reports Title Improving the efficiency of heterogeneous catalytic systems based on zeolites and development of new microheterogeneous systems based on microemulsions popup.stage_title Head Patryliak Liubov K., Доктор хімічних наук Registration Date 03-01-2022 Organization V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry of the National Academy of Sciences of Ukraine popup.description2  The regularities of the effect of modifying solutions on three zeolite rocks of the Transcarpathian deposit were established, and bifunctional catalysts of a hierarchical structure with different porous characteristics were obtained based on the rocks. It has been shown that, upon isomerization of n-hexane on an acid-modified essentially mordenite rock, the formation of dimethylbranched isomers is not regulated by shape selectivity; however, mesoporosity, predominantly a regular pore system ø ~ 2.3 nm, plays a significant role as transport routes. Its development has a positive effect on the formation of dimethylbranched isomers of hexane. The existence of an upper limit of the Ni content in mordenite rock (2 wt%) was revealed, which ensures its close interaction with acid sites localized in zeolite micropores, and, consequently, the maximum efficiency of n-alkane isomerization. The content of dimethylbranched isomers of 16% in the mixture of isomers was obtained, which is comparable to that for Pd-containing samples of synthetic mordenite and which was obtained under flow conditions under H2 pressure. The study further creates biobased surfactants by amidation of phosphatidic sludge derived from refinery of oils with monoethanolamine, N-(2-hydroxyethyl)ethylenediamine, or N,N’-bis(2-hydroxyethyl)ethylenediamine, under the action of calcium hydroxide as catalyst in excellent yields (95–98 %). Besides waste remediation, the use of phosphatides enabled to create the mixed surfactant compositions, comprising fatty acid alkanolamides and calcium glycerolphosphatides with improved solubility in organic non-polar solvents. Transamidation of industial fats with monoethanolamine and ethylendiamine synthesized biosynthetic surfactants in excellent yields (95–96 %).Created the mixed surfactant compositions, comprising aminoamids of fatty of acid and glycerol with improved solubility in organic non-polar solvents. Product Description popup.authors Bodachivska Larisa Yu. Burlachenko Kateryna O. Venger Irina О. Verba Artem Yu. Voloshyna Yuliya G. Davitadze David Z. Zlochevskyi Kostiantyn V. Zubenko Stepan O. Коnovalov Sergiy V. Nizhnyk Borys I. Papeikin Oleksii O. Pertko Oleksandra P. Safronov Oleh I Yakovenko Angela V. popup.nrat_date 2022-03-09 Close