FORMATION OF AL2(MOO4)3 AND MOO3 PHASES INDUCED BY PHOSPHATE IN MOLYBDENA PHOSPHORUS CATALYSTS

被引：32

作者：

CORDERO, RL ^{[1
]}

GUERRA, SL ^{[1
]}

FIERRO, JLG ^{[1
]}

AGUDO, AL ^{[1
]}

机构：

[1] CSIC,INST CATALISIS & PETROLEOQUIM,E-28006 MADRID,SPAIN

来源：

JOURNAL OF CATALYSIS | 1990年 / 126卷 / 01期

关键词：

D O I：

10.1016/0021-9517(90)90041-H

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The combined use of temperature-programmed reduction (TPR), Laser-Raman spectroscopy, and X-ray diffraction has provided evidence that phosphoric acid impregnation on γ-alumina, prior to molybdate incorporation, induces the formation of crystalline Al2(MoO4)3 and MoO3 species. These species, absent in the phosphorus-free preparations, are responsible for the appearance of an additional TPR peak at ca. 785 K and also for the development of characteristic Raman bands. © 1990.

引用

页码：8 / 12

页数：5

共 23 条

[1] EFFECT OF PHOSPHORUS ON THE SURFACE CONCENTRATION OF MOLYBDENUM AND NICKEL IN THE OXIDE FORM OF NICKEL MOLYBDENUM ALUMINA CATALYSTS AND ON THEIR HYDRODESULFURIZATION ACTIVITY [J].

ATANASOVA, P ;

HALACHEV, T ;

UCHYTIL, J ;

KRAUS, M .

APPLIED CATALYSIS, 1988, 38 (02) :235-240

[2] PHOSPHORUS POISONING OF MOLYBDENUM SULFIDE HYDRODESULFURIZATION CATALYSTS SUPPORTED ON CARBON AND ALUMINA [J].

BOUWENS, SMAM ;

VISSERS, JPR ;

DEBEER, VHJ ;

PRINS, R .

JOURNAL OF CATALYSIS, 1988, 112 (02) :401-410

[3]

CHADWICK D, 1983, PREPARATION CATALYST, P323

[4]

COLGAN JD, 1966, Patent No. 3287280

[5] SURFACE CHANGES OF ALUMINA INDUCED BY PHOSPHORIC-ACID IMPREGNATION [J].

CORDERO, RL ;

LLAMBIAS, FJG ;

PALACIOS, JM ;

FIERRO, JLG ;

AGUDO, AL .

APPLIED CATALYSIS, 1989, 56 (02) :197-206

[6]

CORDERO RL, 1989, APPL CATAL, V48, P341

[7]

CORDERO RL, 1988, 11 ACT S IB CAT, P563

[8] EFFECT OF PHOSPHORUS ON MOLYBDENUM-BASED HYDROTREATING CATALYSTS .2. HYDRODESULFURIZATION ACTIVITY AND CHARACTERIZATION OF THE SULFIDED STATE OF P-MO AL2O3 SYSTEMS [J].

FIERRO, JLG ;

AGUDO, AL ;

ESQUIVEL, N ;

CORDERO, RL .

APPLIED CATALYSIS, 1989, 48 (02) :353-363

[9] EFFECTS OF PHOSPHORUS ON NICKEL MOLYBDENUM HYDRODESULFURIZATION HYDRODENITROGENATION CATALYSTS OF VARYING METALS CONTENT [J].

FITZ, CW ;

RASE, HF .

INDUSTRIAL & ENGINEERING CHEMISTRY PRODUCT RESEARCH AND DEVELOPMENT, 1983, 22 (01) :40-44

[10] ON THE ROLE OF PHOSPHATE ANION IN THE MO03-A1203 BASED CATALYSTS [J].

GISHTI, K ;

IANNIBELLO, A ;

MARENGO, S ;

MORELLI, G ;

TITTARELLI, P .

APPLIED CATALYSIS, 1984, 12 (03) :381-393

← 1 2 3 →