A sodium Beta-alumina thin film is coated onto a supporting substrate by forming an agglomerate-free, hydrolyzed sol, principally comprising an electrically surface active polymer formed by the hydrolysis and peptization of sodium and aluminum alkoxides, which is applied to the substrate. The substrate and applied sol are then heated to crystallize the polymer and form a solid film having pores with radii of up to about 250 Angstrom units.

Method of forming sodium beta-Al2 O3 films and coatings

Silicone coated catalyst and use thereof

A novel method for preparing sols from metal oxide precursors by using inorganic salts as the peptizing agent is disclosed herein. Sol-gels prepared from the sols are also disclosed. Ceramic coatings, monoliths, bodies and are formed. These structures have a particle size of down to 0.0001 micron and are endowed with excellent packing characteristics as well as smoothness.

Inorganic salts as peptizing agents in the preparation of metal oxide sol-gel compositions

The specification discloses a method for cleaning an oligomerization reactor after making a higher olefin in the reactor. An olefin is reacted in the presence of a catalyst comprising an aluminum alkyl to form an olefin reaction product. For example, ethylene can be trimerized in the reaction to produce 1-hexene. The reaction also causes a co-product residue of the catalyst to form on the interior surface of the reactor. The interior surface of the reactor is then contacted with an alcohol under conditions effective to remove at least a substantial amount of the catalyst residue from the interior surface of the reactor. The catalyst-removing step can be carried out by combining an alcohol with the process medium used in the reactor. The combined medium can be used to remove both the accumulated polymer co-product and the accumulated catalyst residue from the reactor.

Methods for restoring the heat transfer coefficient of an oligomerization reactor

A solvent based detergent composition consisting essentially of (A) 10-80% liquid aliphatic chlorinated hydrocarbon solvents, (B) 10-40% liquid aliphatic ketones and/or liquid aliphatic esters, (C) 6 to 50% water soluble liquid alkanols having two to five carbon atoms and (D) 1-10% surface active agents.

Solvent based detergent

Method for making alumina hydrosols

Process of preparing platinum-alumina hydroforming catalysts

Novel lithium silicate compositions and process for producing same

Our invention is concerned with improved catalysts, and more specifically relates to an improved process for the preparation of catalysts suitable for utilization in cracking, reforming, isomerization, polymerization, alkylatlon and similar treating processes. Our invention is particularly...

Process for the preparation of a silica-metal oxide hydrogel catalyst

Our invention is concerned with improved catalysts and more specifically relates to an improved process for the preparation of catalysts suitable for utilization in cracking, reforming, isomerization, polymerization and alkylation processes. Our invention is particularly concerned with an improved...

Edward A Hunter

Papers

Method for making alumina hydrosols

Process of preparing platinum-alumina hydroforming catalysts

Novel lithium silicate compositions and process for producing same

Process for the preparation of a silica-metal oxide hydrogel catalyst

Process for the preparation of a silica-group vill metal oxide catalyst