Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Preparation and Use of High Surface Area Transition Metal Catalysts.

Authors
Atkinson-GB
Source
Us Pat 4 256 653 1981 Mar; :
Link
NIOSHTIC No.
10006723
Abstract
Methanation catalysts were prepared from rare-earth metal alloys with group VIII metals by treating with CO and h2 to form a catalyst composed of the group VIII metal (or its carbide) and a rare-earth oxide. In an example, a ce-ni alloy with the approximate composition ceni5 was ground and reacted with CO and h2 at 275 deg- 400 deg c to obtain a catalyst containing ce oxide, ni, and some ni carbide. In other examples, a ni-misch metal alloy was oxidized to a catalyst containing ni and rare-earth oxides, and a ce-co alloy with the approximate composition ceco5 was oxidized to a catalyst containing CO and ce oxide. Chem. Abstr. 94:215,262P highly active catalysts suitable for use in hydrogenation and other reactions are prepared from an alloy of a group VIII metal (especially ni or co) with a rare-earth metal or yttrium. The alloy is ground to the desired particle size and caused to react with a gas containing CO and h2 to form an intimate mixture of the group VIII metal or its carbide with the oxide of the rare earth or yttrium. Thus, an alloy containing ce 32.3 and ni 67.7 Wt pct showed an active surface area of 40 m2/g after activation at 165 deg-210 deg c in a mixture of h2 75 and co 25 pct.
Publication Date
19810301
Document Type
PA;
Fiscal Year
1981
NTIS Accession No.
NTIS Price
Identifying No.
P 8-81
NIOSH Division
RERC;
Source Name
Us Pat 4,256,653, Mar. 17, 1981; (Div. of Us Pat 4,071,473, Jan. 13, 1978) Chem Abs 87:141,949Z
TOP