Method for preparing a highly dispersed supported nickel catalys

Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

252466J, 252472, B01J 2914, B01J 2374

Patent

active

040737500

ABSTRACT:
This invention relates to a method for making supported nickel catalysts which are characterized as having the nickel in a highly dispersed state, the catalysts and use thereof in hydrogenation, reforming and hydrocarbon synthesis reactions, for example, Fischer-Tropsch reactions. Catalysts prepared by the method of the instant invention, wherein nonaqueous solutions are used in preparing the catalyst, are characterized as having a degree of dispersion of at least 10% greater than similar catalysts prepared by the prior art aqueous impregnation techniques and in some instances show an improved degree of dispersion of more than 50% over the catalysts prepared by the prior art methods. In the method of the instant invention the catalyst is prepared by slurrying a nickel metal precursor dissolved in a nonaqueous organic solvent with a high surface area support, for example, a refractory inorganic oxide, preferably selected from the group consisting of silica and alumina, removing the solvent to obtain a composite of said nickel metal precursor and said support and activating said composite by reducing in hydrogen at conditions sufficient to convert substantially all the nickel metal precursor to nickel metal. The nonaqueous solvent is preferably selected from the group consisting of aldehydes, ketones, ethers and organic nitrogen compounds, for example, acetone, acetonitrile, N,N-dimethyl formamide, hexamethyl phosphoramide, diethylether, tetrahydrofuran, dioxane, methylethyl ketone and acetaldehyde.

REFERENCES:
patent: 1997135 (1935-04-01), de Mahler
patent: 3535271 (1970-10-01), Fuller
patent: 3536632 (1970-10-01), Kroll
patent: 3553102 (1971-01-01), Rosinski et al.
patent: 3692701 (1972-09-01), Box
patent: 3868332 (1975-02-01), Carter et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method for preparing a highly dispersed supported nickel catalys does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for preparing a highly dispersed supported nickel catalys, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for preparing a highly dispersed supported nickel catalys will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-523658

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.