Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Patent
1988-07-27
1991-07-09
Shine, W. J.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
B01J 2326, B01J 2372
Patent
active
050306090
ABSTRACT:
A copper chromite hydrogenation catalyst of enhanced activity is obtained by an ante-pre-reduction treatment in which a copper chromite catalyst precursor is soaked in a reducing atmosphere at temperatures below a pre-reduction temperature (typically about 140.degree. C.) at which appreciable pre-reduction of the catalyst can be detected. This catalyst is characterized by particles of reduced copper substantially all of which have an average particle size of less than about 300.times.10.sup.-10 m (300.ANG.), which have an average particle size of less than about 100.times.10.sup.-10 m (100.ANG.), and which are substantially uniformly distributed on a chromium-containing support. Typically such catalysts exhibit a copper surface area of about 18.5 m.sup.2 /g as determined by N.sub.2 O decomposition at 20.degree. C., compared to a corresponding copper surface area of 4.5 m.sup.2 /g for a catalyst which has been produced by conventional pre-reduction of the same catalyst precursor.
REFERENCES:
patent: 2040944 (1936-05-01), Lazier
patent: 2079414 (1937-05-01), Lazier
patent: 2091800 (1937-08-01), Adkins et al.
patent: 2964579 (1960-12-01), Kirsch et al.
patent: 3020291 (1962-02-01), Dunlop et al.
patent: 3341610 (1967-09-01), Dunlop et al.
patent: 4032458 (1977-06-01), Cooley et al.
patent: 4112245 (1978-09-01), Zehner et al.
patent: 4172961 (1979-10-01), Henery et al.
patent: 4652685 (1987-03-01), Cawse et al.
patent: 4666879 (1987-05-01), Kelly et al.
Johansson et al., "Copper Catalysts in the Selective Hydrogenation of Soybean and Repeseed Oils: The Activity of the Copper Chromite Catalyst", J. Am. Oil. Chem. Soc., 56(2) (1979), pp. 974-980.
Wrobel et al., "Evolution de la Structure et de la Distribution Ionique d'Une Serie de Catalyseurs Type Chromite de Cuivre en Atmosphere Reductrice", Nouv. J. Chim., 8, No. 5 (1984), pp. 291-298.
G-Katalysatoren, "Hydrogenation Catalysts", pp. 1-9, Jul. 1984.
P. W. Atkins, "Physical Chemistry", Second Edition, pp. 727-752.
M. Freidfelder, "Catalytic Hydrogenation in Organic Synthesis", pp. 129-130, (published by John Wiley and Sons, Inc.), 1978.
"Organic Reactions", vol. 8, Chapter 1, by Homer Adkins.
Kirk-Othmer's "Encyclopedia of Chemical Technology" (Third Edition), vol. 1, pp. 733-739.
Bechara et al., "Selective Hydrogenation of Dienes on Copper Chromite Catalysts II. Structure-Activity Relationships and Catalytic Sites", Applied Catalysis, 16 (1985), pp. 15-27.
D'Huysser et al., "Characterisation par L'Etude de Raies E.S.C.A. et Auger D'Un Catalyseur `Chromite de Cuivre` en Atmosphere Reductrice", J. Microsc. Spectrosc. Electron., 2(6), pp. 609-614 (Translation provided).
Capece et al., "`Copper Chromite` Catalysts: XPS Structure Elucidation and Correlation with Catalytic Activity", J. Electron Spectrosc. Relat. Phenom., 27(2), 1982, pp. 119-125.
Kasaoka et al., "Activity of Copper Chromite System Industrial Catalysts", Kogyo Kagaku Zasshi, 73(4), pp. 648-651, (translation provided).
Apai et al., "Relationship between Stable Monovalent Copper-Chromia Catalysts and Activity for Methanol Formation", J. Chem. Soc. Commun., 1984, pp. 212-213.
Fragale et al., "Catalytic Hydrogenation of Vegetable Oils: II. The Activity of the Preproduced Copper Chromite Catalyst", J. Am. Oil. Chem. Soc., 59 (11), pp. 465-469.
Iimura et al., "Catalysis by `Copper Chromite`. I. The Effect of Hydrogen Reduction on the Composition, Structure, and Catalytic Activity of Methanol Decomposition", Bull. Chem. Soc. Jpn., 56, 1983, pp. 2203-2207.
Banergee et al., "Copper Chromite Catalyst System: Part III--Kinetic Evaluation of Catalytic Hydrogenation of Nitrobenzene to Aniline in a Flow-Reactor", Fert, Technol., 18 (3-4), pp. 1331-134.
Wrobel et al., "Characterisation Catalyseurs a Base De Cuivre Et De Chrome Par Diffraction X, Spectroscopie Infra-Rouge Et Reflectance Diffuse", Mater. Chem., 6(1), 1984, pp. 19-34 (Translation provided).
Evans et al., "Hydrogenolysis of Alkyl Formates Over a Copper Chromite Catalyst", Applied Catalysis, 7 1983, pp. 31-41.
Jenck et al., "High-Pressure Competitive Hydrogenation of Ketones on Copper Chromite Catalyst", Journal of Catalysis 65, 1980, pp. 133-140.
Sandilya et al., "Studies on the CuO--Cr.sub.2 O.sub.3 System", Technology, 7(4), pp. 292-297.
Fragale et al., "Catalytic Hydrogenation of Vegetable Oils: III. A Comparison of Reactivity and Selectivity between Cyclic Polyenes and Polyunsaturated Fatty Acids with Copper Chromite as Catalyst", Inorg. Chim. Acta., 82(2), pp. 157-160.
Severino et al., "Effect of Composition and Pretreatment on the Activity of Copper-Chromium-Based Catalysts for the Oxidation of Carbon Monoxide", Ind. Eng. Chem. Prod. Res. Dev., 22(3), pp. 396-401.
Subrahmanyam et al., "Studies on pore structure of a commercial copper chromite catalyst: Determination of the S.A. and pore size distribution of commercial copper chromite catalyst by electronmicroscope and comparison of the data with nitrogen absorption", Proc. Catsympo 80, Nat'l Catal. Symp., 5th Mtg. date 1980.
Ghorai et al, "Copper Chromite Catalyst System: Part IV--Catalytic Activity and Surface Properties in the Activated State", Fert. Technol., 18 (3-4), pp. 146-151.
De et al., "Studies on Copper Chromite Catalyst Prepared by Two Different Methods", Proc. Natl. Symp. Catal., 4th, Meeting date 1978, pp. 459-462.
Schreifels et al., "An X-ray Photoelectron Spectroscopic Study of Copper Chromite Catalysts", Appl. Spectrosc., 33(4), pp. 380-384.
Gallagher et al., "Examples of the Use of DTA for the Study of Catalytic Activity and Related Phenoma", Catal. Org. Synth.-Conf. 5th, Meeting date 1975, pp. 113-136.
Veber et al., "Catalytic Activity of Copper Chromite and of Certain Cobalities on Carriers in the Reaction of Complete Oxidation of Furfuryl Alcohol", Zh. Prikl. Khim (Leningrad), 48(8), pp. 1857-1859.
Rastogi et al., "Solid State Chemistry of Copper Chromite Used as a Catalyst for the Burning of Ammonium Perchlorate/Polystyrene Propellants", J. Catal., 65(1), pp. 25-30.
Carter Anthony B.
Scarlett John
Sharif Mohammad
Turner Keith
Webb Geoffrey
Davy McKee (London) Limited
Shine W. J.
LandOfFree
Process for producing a hydrogenation catalyst of copper chromit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for producing a hydrogenation catalyst of copper chromit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing a hydrogenation catalyst of copper chromit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-618217