APPLICATION OF CARBON NANOTUBES TO INCREASE SELECTIVITY IN PRODUCTION OF 4,4-DIMETHYL-1,3-DIOXANE

FIELD: chemistry.SUBSTANCE: invention relates to the field of basic organic and petrochemical synthesis and can be used in the production of 4,4-dimethyl-1,3-dioxane by condensation of isobutylene and formaldehyde. Carbon nanotubes with a pore diameter 7-11 Å as a heterogeneous cocatalyst. Therein s...

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Hauptverfasser:	Ovchinnikov Grigorij Andreevich, Vakulin Ivan Valentinovich, Talipov Rifkat Faatovich, Ishmuratov Gumer Yusupovich, Nasyrov Ildus Shajkhitdinovich, Tukhvatshin Vadim Salavatovich
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY HETEROCYCLIC COMPOUNDS MANUFACTURE OR TREATMENT THEREOF METALLURGY NANOSTRUCTURES FORMED BY MANIPULATION OF INDIVIDUAL ATOMS,MOLECULES, OR LIMITED COLLECTIONS OF ATOMS OR MOLECULES ASDISCRETE UNITS NANOTECHNOLOGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Zusammenfassung:	FIELD: chemistry.SUBSTANCE: invention relates to the field of basic organic and petrochemical synthesis and can be used in the production of 4,4-dimethyl-1,3-dioxane by condensation of isobutylene and formaldehyde. Carbon nanotubes with a pore diameter 7-11 Å as a heterogeneous cocatalyst. Therein synthesis of DMD is carried out in the presence of 5.0-5.5 wt.% of phosphoric acid, based on the weight of the reaction mixture taken as the basic acid catalyst.EFFECT: increasing the selectivity of the formation of 4,4-dimethyl-1,3-dioxane.1 cl, 1 tbl, 2 ex Изобретение относится к области основного органического и нефтехимического синтеза и может быть использовано в производстве 4,4-диметил-1,3-Диоксана путем конденсации изобутилена и формальдегида. Предложены углеродные нанотрубоки с диаметром порв качестве гетерогенного сокатализатора. При этом синтез ДМД проводят в присутствии в присутствии 5,0-5,5 мас.% фосфорной кислоты от массы реакционной смеси, взятой в качестве базового кислотного катализатора. Технический результат: увеличение селективности образования 4,4-диметил-1,3-диоксана. 1 табл., 2 пр.