The kinetics of the gas phase aldol condensation reaction of propionic acid with formaldehyde on B2O3-P2O5-WO3/SiO2 catalyst
Study of kinetic parameters and the basic kinetic regularities of aldol condensation reaction of propionic acid with formaldehyde on B2O3-P2O5-WO3/SiO2 catalyst in the gas phase. Methods of obtaining polymer materials with valuable technical properties.
Подобные документы
???????? ??????? ??????? ?????? ??????? ?? ???????????? ????????? ???????? ? I ??????? ???. ???????? ?????? ??????? ???????? ???????? ? ??????? ??????????? ??? ????????? ???????? ????????. ????????????? ???????? ???????????? ??? ??????? Fe2O3–B2O3–H2O.
??????, добавлен 19.11.2018Radical polymerization with a thiol-type chain transfer agent of poly-N-vinylpyrrolidone-based amphiphilic polymers, which can be used as drug carriers. Critical micelle concentration and its dependence on the molecular weight of the diblock copolymers.
??????, добавлен 18.04.2022- 103. Ir spectroscopy and tg analysis investigations of functionalized go and go-containing divinyl rubber
Analysis of the results of a study of graphene oxide and divinely rubber containing graphene oxide, functioning-RO (Oh)2 slot groups as a result of a kill-chlorophosphorylation reaction under the action of PCl3 in the presence of oxygen. Synthesis of GO.
??????, добавлен 10.05.2018 The study of the effect of bismuth nitrate (Bi (NO3) 3) deposited on tissue samples, coated tissue was evaluated by measuring the penetration of radiation. Various properties, such as mass per unit area, material thickness and surface morphology.
??????, добавлен 06.07.2020Synthesis of folate-ferrocene conjugate (FFC) through a stage of synthesis ferrocene carboxylic acid. Confirmation of the structure of the conjugate by the methods of spectroscopy. Studies of the biological activity of FFC by the method of tissue culture.
??????, добавлен 21.12.2016Study the process of liquid hydrocarbon oxidation. Chemical reaction of cyclohexane with the organic additives of different nature. Composition of products and speed of oxidation of toluene and p-xylene in the presence of binary liquid catalysts.
??????, добавлен 23.02.2016- 107. Review of graphene properties in view of its use as a substrate for matrix-free mass spectrometry
The graphene basic properties is given. The possible role of intrinsic and deliberately induced structural defects in electronic and chemical properties of graphene substrates. Optimized geometric structures for the Stone-Wales defect functionalized.
??????, добавлен 02.04.2014 The use of a sorbent to study the preliminary concentration of V (V) ions in the liquid phase. Establishment of optimal conditions for sorption. Influence of the concentration of metal ions and the time of reaching chemical equilibrium on sorption.
??????, добавлен 27.02.2021The technology for the synthesis of two coumarin-chalcone hybrids by means of Kleisen-Schmidt condensation between 3-acetylcoumarin with benzaldehyde and 4-chlorobenzaldehyde, respectively. Method of identification and control of a chemical process.
??????, добавлен 15.01.2021Physical parameter models. Thermodynamic parameter models. Brief review of the relationship between the solution model and phase equilibria. The modified quasi chemical (MQC) model. Basic quasi chemical theory. The modified binary quasi-chemical theory.
??????, добавлен 10.04.2017The study of the composition and the structure of the original and modified lignocellulosic materials. Analysis of the dependence of sorption properties of lignocellulosic composites in relation to heavy metals from changes in the functional composition.
??????, добавлен 04.04.2014Research and characteristics of the methanation of carbon dioxide under atmospheric pressure over a catalyst containing 5% of metals prepared by the impregnation method. Measured of the specific surface area by low-temperature adsorption of argon.
??????, добавлен 29.09.2016Study of the electrochemical behavior of various anode materials in electrolytes containing trivalent chromium salts. Semiconductor properties of electrodes. The choice of the optimum anode material for the processes of chromium from electrolytes.
??????, добавлен 30.10.2016??????????? ?????? ?????? ?? ????????? ???????????? ?'?????? ??????? Na2?-Ca?-Al2?3-SiO2-H2O ?? ????????? ???????????. ???????? ??????????? ??????? ??????? ? ?????????????????. ?????????? ???????????? ??????????? ??????? ????????????? ??????????.
???????????, добавлен 05.01.2014?omparative analysis the chemistry of technetium and rhenium ?arbonyl perchlorates [M(ClO4)(CO)5]. The descriptions of their molecular structure, physical properties, types of materials, methods and procedures for their synthesis and reactivity.
??????, добавлен 30.01.2014Modern and effective methods of hardening metals. Nitriding in a glow discharge in ammonia or in an anhydrous medium. Tribological and physicochemical properties of hardened surfaces obtained by nitriding with autonomous and interconnected BATR modes.
??????, добавлен 22.05.2022Consideration in this study, multi-chamber detonation sprayer was applied for deposition of NiCoCrAlY powder coatings on nickel base superalloy JS6U. The coating microstructures and phase compositions were characterized using SEM, OM and XRD techniques.
??????, добавлен 30.07.2016??????????? ??????????? ??????????????? ????? ?? ???????? ??????????? ?????????? ?? ?????????????? CeO2/SiO2. ?????????? ????????????? ??????? ???????????? ???????????? ??????? ????????????? ??????????? ? ???????????? ??? ??????? ???????????? ???????????.
???????????, добавлен 30.07.2015- 119. ?????? ?? ??????
?????????? ??????????? ??????. ??????-?????????? ?????????????? ??????????????? ??????????. ????????? ??? ?????????? ????????????? ??????????? ??????. ????????? ?????????????? ??????? Li–W–Mn–SiO2 ????????????? ? ????????????? ??????????? ??????.
????????? ??????, добавлен 11.12.2019 Method of syntesis of novel N-substituted 3-(aminosulfonyl)-2H-1-benzopyran-2-one in the Knoevenagel condensation conditions. Studing the biological activity of derivatives against protozoan and helminth parasites, active against Onchocerca lienalis.
??????, добавлен 19.02.2014- 121. Super deep penetration - new method of nanoreinforced composites producing based on polymer matrixes
Effect of the method of mixing isoprene rubber with nanofillers on the properties of nanocomposites. The thermostability of rubber based on isoprene elastomer with MMT. The physical-mechanical properties of rubber based on isoprene elastomer (SRI).
??????, добавлен 29.06.2017 - 122. Types of chemistry
Study matter and change and the types of systems. Studying the molecules of life by organic chemistry. Identification and quantification of materials in a mixture in analytical chemistry. Chemical principles underlying basic biological systems.
????, добавлен 22.11.2015 ???????? ????????? ??????????? ????????? SiO2, ???????, ???????????? ???????? ? ????????. ?????????? ?????????????? ???????? ? ??????????? ??? ??????? ??????????. ???????????? ????????????? ????????. ?????? ???????????? ???????? ??????????? ?????????.
????? ?? ????????, добавлен 19.03.2011?????? ???????? ?????????? ??????? ? ?????? ?????????? ???????????? ???????????? ? ????????????? ?????? ?????? ZrO2-SiO2 ????????????. ???????????? ?????????? ????????? ??????? ?? ?????? ????????? ???????? ??? ??????????? ?? ????????????? ?????????.
??????, добавлен 14.01.2017The occurrence of compensation effect on massive and supported oxide catalysts of CO oxidation is shown. The explanation of compensation effect is offered based on the data on the surface state of the catalysts that are obtained means desorption method.
???????????, добавлен 02.04.2014
