17 research outputs found
ΠΡΠ±ΠΎΡ Π½ΠΎΡΠΈΡΠ΅Π»Ρ Π΄Π»Ρ ΠΏΡΠΈΠ³ΠΎΡΠΎΠ²Π»Π΅Π½ΠΈΡ ΠΊΠ°ΡΠ°Π»ΠΈΠ·Π°ΡΠΎΡΠ° Π½ΠΈΠ·ΠΊΠΎΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ½ΠΎΠ³ΠΎ ΠΎΠΊΠΈΡΠ»Π΅Π½ΠΈΡ ΠΌΠΎΠ½ΠΎΠΎΠΊΡΠΈΠ΄Π° ΡΠ³Π»Π΅ΡΠΎΠ΄Π°
The effect of support nature on activity of low-temperature carbon monoxide oxidation catalysts was studied. It is shown on the base of X-ray Diffraction, that y-Al2O3 is the best support for Pd-Cu catalystΠΠ·ΡΡΠ΅Π½ΠΎ Π²Π»ΠΈΡΠ½ΠΈΠ΅ ΠΏΡΠΈΡΠΎΠ΄Ρ Π½ΠΎΡΠΈΡΠ΅Π»Ρ Π½Π° Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ ΠΊΠ°ΡΠ°Π»ΠΈΠ·Π°ΡΠΎΡΠΎΠ² Π½ΠΈΠ·ΠΊΠΎΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ½ΠΎΠ³ΠΎ ΠΎΠΊΠΈΡΠ»Π΅Π½ΠΈΡ Π‘Π. ΠΠ° ΠΎΡΠ½ΠΎΠ²Π°Π½ΠΈΠΈ ΡΡΠ°Π²Π½Π΅Π½ΠΈΡ Π΄Π°Π½Π½ΡΡ
ΡΠ΅Π½ΡΠ³Π΅Π½ΠΎΠ³ΡΠ°ΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π° Π½ΠΎΡΠΈΡΠ΅Π»Π΅ΠΉ ΠΈ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΠΈ ΠΊΠ°ΡΠ°Π»ΠΈΠ·Π°ΡΠΎΡΠΎΠ², ΠΏΠΎΠ»ΡΡΠ΅Π½Π½ΡΡ
Π½Π° ΠΈΡ
ΠΎΡΠ½ΠΎΠ²Π΅, ΠΏΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ Π»ΡΡΡΠΈΠΌ Π½ΠΎΡΠΈΡΠ΅Π»Π΅ΠΌ ΡΠ²Π»ΡΠ΅ΡΡΡ y-Al2O
ΠΠΊΠΈΡΠ»Π΅Π½ΠΈΠ΅ ΠΌΠΎΠ½ΠΎΠΎΠΊΡΠΈΠ΄Π° ΡΠ³Π»Π΅ΡΠΎΠ΄Π° ΠΊΠΈΡΠ»ΠΎΡΠΎΠ΄ΠΎΠΌ Π² Π²ΠΎΠ΄Π½ΠΎ-Π°ΡΠ΅ΡΠΎΠ½ΠΈΡΡΠΈΠ»ΡΠ½ΡΡ ΡΠ°ΡΡΠ²ΠΎΡΠ°Ρ Π±ΡΠΎΠΌΠΈΠ΄Π½ΡΡ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠΎΠ² ΠΏΠ°Π»Π»Π°Π΄ΠΈΡ(II) Π² ΠΏΡΠΈΡΡΡΡΡΠ²ΠΈΠΈ ΡΡΠ°Π»ΠΎΡΠΈΠ°Π½ΠΈΠ½Π°ΡΠΎΠ² Π‘ΠΎ(II), Fe(II) ΠΈ Mn(III)
Objectives. The objective of this paper was to compare acetylene oxidative dicarbonylation that leads to maleic anhydride with a side reaction of CO oxidation by oxygen in a PdBr2-LiBr-H2C-CH3CN system and in the presence of insoluble (Co) and soluble (Co, Fe, and Mn) phthalocyaninates (PcM).Methods. To study the oxidation of CO to CO2, a kinetics method was used; UV and IR spectroscopy was used to determine the concentrations of initial and intermediate compounds.Results. The knetics of CO to CO2 oxidation were investigated and the reactivity series of PcM in CO oxidation and maleic anhydride synthesis was characterized. A satisfactory correlation was observed between reaction rates and PcM concentration, as well as the nature of metal, in both processes. The IR measurements of concentrations of Pd(II) and Pd(I) intermediate carbonyl complexes, and CO2 concentrations, have made it possible to hypothesize the mechanism of CO2 generation. The effect of PcM concentration on the concentrations of Pd(II)(CO) in CO oxidation has been shown.Conclusions. Based on the data regarding CO oxidation and acetylene oxidative dicarbonylation, certain conditions have been proposed to effectively produce double-labeled maleic anhydride with 13C (from 13CO).Π¦Π΅Π»ΠΈ. Π‘ΡΠ°Π²Π½Π΅Π½ΠΈΠ΅ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠΎΠ² ΠΈΠ·ΡΡΠ΅Π½ΠΈΡ ΠΏΡΠΎΡΠ΅ΡΡΠ° ΠΎΠΊΠΈΡΠ»ΠΈΡΠ΅Π»ΡΠ½ΠΎΠ³ΠΎ Π΄ΠΈΠΊΠ°ΡΠ±ΠΎΠ½ΠΈΠ»ΠΈΡΠΎΠ²Π°Π½ΠΈΡ Π°ΡΠ΅ΡΠΈΠ»Π΅Π½Π° Π΄ΠΎ ΠΌΠ°Π»Π΅ΠΈΠ½ΠΎΠ²ΠΎΠ³ΠΎ Π°Π½Π³ΠΈΠ΄ΡΠΈΠ΄Π° (ΠΠ) Ρ Π·Π°ΠΊΠΎΠ½ΠΎΠΌΠ΅ΡΠ½ΠΎΡΡΡΠΌΠΈ ΠΏΠΎΠ±ΠΎΡΠ½ΠΎΠΉ ΡΠ΅Π°ΠΊΡΠΈΠΈ ΠΎΠΊΠΈΡΠ»Π΅Π½ΠΈΡ Π‘Π ΠΊΠΈΡΠ»ΠΎΡΠΎΠ΄ΠΎΠΌ Π² ΡΠΈΡΡΠ΅ΠΌΠ΅ PdBr2βLiBrβΠ2ΠβΠ°ΡΠ΅ΡΠΎΠ½ΠΈΡΡΠΈΠ» Π² ΠΏΡΠΈΡΡΡΡΡΠ²ΠΈΠΈ Π½Π΅ΡΠ°ΡΡΠ²ΠΎΡΠΈΠΌΡΡ
(Π‘ΠΎ) ΠΈ ΡΠ°ΡΡΠ²ΠΎΡΠΈΠΌΡΡ
(Co, Fe ΠΈ Mn) ΡΡΠ°Π»ΠΎΡΠΈΠ°Π½ΠΈΠ½Π°ΡΠΎΠ² (Π ΡΠ).ΠΠ΅ΡΠΎΠ΄Ρ. ΠΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½Ρ ΠΊΠΈΠ½Π΅ΡΠΈΡΠ΅ΡΠΊΠΈΠΉ ΠΌΠ΅ΡΠΎΠ΄ Π΄Π»Ρ ΠΈΠ·ΡΡΠ΅Π½ΠΈΡ ΡΠ΅Π°ΠΊΡΠΈΠΈ ΠΎΠΊΠΈΡΠ»Π΅Π½ΠΈΡ Π‘Π Π΄ΠΎ Π‘Π2 ΠΈ Π£Π€- ΠΈ ΠΠ-ΡΠΏΠ΅ΠΊΡΡΠΎΡΠΊΠΎΠΏΠΈΡ Π΄Π»Ρ ΠΊΠΎΠ½ΡΡΠΎΠ»Ρ Π·Π° ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΡΠΌΠΈ ΠΈΡΡ
ΠΎΠ΄Π½ΡΡ
ΠΈ ΠΏΡΠΎΠΌΠ΅ΠΆΡΡΠΎΡΠ½ΡΡ
ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΠΉ.Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ. ΠΠ·ΡΡΠ΅Π½Π° ΠΊΠΈΠ½Π΅ΡΠΈΠΊΠ° ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΡ CO2. Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½Ρ ΡΡΠ΄Ρ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΠΈ Π ΡΠ Π² ΡΠ΅Π°ΠΊΡΠΈΠΈ ΠΎΠΊΠΈΡΠ»Π΅Π½ΠΈΡ Π‘Π ΠΈ ΠΏΠΎΠ»ΡΡΠ΅Π½ΠΈΡ ΠΠ ΠΈ ΠΏΠΎΠΊΠ°Π·Π°Π½Π° ΡΠ΄ΠΎΠ²Π»Π΅ΡΠ²ΠΎΡΠΈΡΠ΅Π»ΡΠ½Π°Ρ ΠΊΠΎΡΡΠ΅Π»ΡΡΠΈΡ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠ° Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΠ΅ΠΉ ΡΠΊΠΎΡΠΎΡΡΠ΅ΠΉ RCO2 ΠΈ RMA ΠΎΡ [PcM] ΠΈ ΠΎΡ ΠΏΡΠΈΡΠΎΠ΄Ρ ΠΌΠ΅ΡΠ°Π»Π»Π° Π² ΠΎΠ±ΠΎΠΈΡ
ΠΏΡΠΎΡΠ΅ΡΡΠ°Ρ
. ΠΠΎ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ°ΠΌ ΠΈΠ·ΠΌΠ΅ΡΠ΅Π½ΠΈΡ ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΠΉ ΠΏΡΠΎΠΌΠ΅ΠΆΡΡΠΎΡΠ½ΡΡ
ΠΊΠ°ΡΠ±ΠΎΠ½ΠΈΠ»ΡΠ½ΡΡ
ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠΎΠ² Pd(II) ΠΈ Pd(I) ΠΈ ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΠΉ Π‘Π2 Π² Ρ
ΠΎΠ΄Π΅ ΠΏΡΠΎΡΠ΅ΡΡΠ° ΠΌ.Π΅ΡΠΎΠ΄ΠΎΠΌ ΠΠ-ΡΠΏΠ΅ΠΊΡΡΠΎΡΠΊΠΎΠΏΠΈΠΈ ΠΏΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Ρ Π³ΠΈΠΏΠΎΡΠ΅Π·Ρ ΠΎ ΠΌΠ΅Ρ
Π°Π½ΠΈΠ·ΠΌΠ΅ ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΡ Π‘Π2, Π° ΡΠ°ΠΊΠΆΠ΅ ΡΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ Π²Π»ΠΈΡΠ½ΠΈΠ΅ [PcM] Π½Π° ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΡ [PdII](CO) Π² ΡΡΠ°ΡΠΈΠΎΠ½Π°ΡΠ½ΡΡ
ΡΡΠ»ΠΎΠ²ΠΈΡΡ
Π² Ρ
ΠΎΠ΄Π΅ ΠΊΠ°ΡΠ°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΏΡΠΎΡΠ΅ΡΡΠ° ΠΎΠΊΠΈΡΠ»Π΅Π½ΠΈΡ Π‘Π.ΠΠ°ΠΊΠ»ΡΡΠ΅Π½ΠΈΠ΅. ΠΠΎ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ°ΠΌ ΠΈΠ·ΡΡΠ΅Π½ΠΈΡ ΠΌΠΎΠ΄Π΅Π»ΡΠ½ΠΎΠΉ ΡΠ΅Π°ΠΊΡΠΈΠΈ ΠΎΠΊΠΈΡΠ»Π΅Π½ΠΈΡ Π‘Π ΠΈ Π·Π°ΠΊΠΎΠ½ΠΎΠΌΠ΅ΡΠ½ΠΎΡΡΠ΅ΠΉ ΠΎΠΊΠΈΡΠ»ΠΈΡΠ΅Π»ΡΠ½ΠΎΠ³ΠΎ Π΄ΠΈΠΊΠ°ΡΠ±ΠΎΠ½ΠΈΠ»ΠΈΡΠΎΠ²Π°Π½ΠΈΡ Π°ΡΠ΅ΡΠΈΠ»Π΅Π½Π° ΠΏΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Ρ ΡΠ΅ΠΊΠΎΠΌΠ΅Π½Π΄Π°ΡΠΈΠΈ ΠΏΠΎ ΡΡΠ»ΠΎΠ²ΠΈΡΠΌ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΠ³ΠΎ ΠΏΡΠΎΡΠ΅ΡΡΠ° ΠΏΠΎΠ»ΡΡΠ΅Π½ΠΈΡ Π΄Π²Π°ΠΆΠ΄ΡΡ13Π‘-ΠΌΠ΅ΡΠ΅Π½Π½ΠΎΠ³ΠΎ ΠΌΠ°Π»Π΅ΠΈΠ½ΠΎΠ²ΠΎΠ³ΠΎ Π°Π½Π³ΠΈΠ΄ΡΠΈΠ΄Π° (ΠΈΠ· 13Π‘Π)
The choice of support for catalyst of low-temperature carbon monoxide oxidation
The effect of support nature on activity of low-temperature carbon monoxide oxidation catalysts was studied. It is shown on the base of X-ray Diffraction, that y-Al2O3 is the best support for Pd-Cu catalys
Silicalite-1 macrostructures β preparation and structural features
International audienc