EFFECT OF SUPPORT NATURE ON PHYSICOCHEMICAL CHARACTERISTICS AND CATALYTIC PROPERTIES OF B-P-V-W-Ox OXIDE COMPOSITIONS IN THE CONDENSATION REACTION BY ACETIC ACID WITH FORMALDEHYDE

被引：3

作者：

Nebesnyi, R. V. ^{[1
]}

Sydorchuk, V. V. ^{[2
]}

Ivasiv, V. V. ^{[1
]}

Khalameida, S. V. ^{[2
]}

Orobchuk, O. M. ^{[1
]}

Pavliuk, A. S. ^{[1
]}

Tsymbalista, O. V. ^{[1
]}

机构：

[1] Lviv Polytech Natl Univ, Lvov, Ukraine

[2] NAS Ukraine, Inst Sorpt & Problems Endoecol, Kiev, Ukraine

来源：

THEORETICAL AND EXPERIMENTAL CHEMISTRY | 2020年 / 56卷 / 04期

关键词：

acrylic acid; aldol condensation; supported catalysts; porous structure; acid centers; PHASE ALDOL CONDENSATION; ACRYLIC-ACID; PROPIONIC-ACID; METHACRYLIC-ACID; DEHYDRATION; OXIDATION; VPO;

D O I：

10.1007/s11237-020-09658-y

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The influence of the support nature on physicochemical characteristics (surface acidity, porous structure) of complex oxide compositions B-P-V-W-O(x)and their catalytic properties (activity, selectivity) in the reaction of gas-phase aldol condensation of acetic acid with formaldehyde to obtain acrylic acid was studied. It was found that the activity of catalysts varies symbolically with the size of the specific surface, and the selectivity of the formation of acrylic acid is determined by the presence of weak acid centers on the surface of the catalyst. In the presence of the catalyst B-P-V-W-O-x/TiO(2)at a temperature of 375 degrees C, acrylic acid was obtained with a yield of similar to 59% with a selectivity of formation of 92%.

引用

页码：268 / 274

页数：7

共 2 条

[1] Effect of Support Nature on Physicochemical Characteristics and Catalytic Properties of B-P-V-W-Ox Oxide Compositions in the Condensation Reaction by Acetic Acid with Formaldehyde
R. V. Nebesnyi
V. V. Sydorchuk
V. V. Ivasiv
S. V. Khalameida
O. M. Orobchuk
A. S. Pavliuk
O. V. Tsymbalista
Theoretical and Experimental Chemistry, 2020, 56 : 268 - 274
[2] Aldol condensation of acetic acid and formaldehyde to acrylic acid over a hydrothermally treated silica gel-supported B-P-V-W oxide
Nebesnyi, R.
Pikh, Z.
Sydorchuk, V
Khalameida, S.
Kubitska, I
Khyzhun, O.
Pavliuk, A.
Voronchak, T.
APPLIED CATALYSIS A-GENERAL, 2020, 594

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