Exxonmobil Chemical Patents Inc.

Consejo Superior De Investigaciones Cientificas

Polytechnic University of Valencia

Joaquin Perez Pariente

Avelino Corma Canos

Antonio Chica Lara

Javier Agundez Rodriguez

Gordon Frederick Stuntz

Stephen M Davis

Philip Andrew Ruziska

Brian Erik Henry

Tan Jen Chen

Ian A Cody

William John Murphy

Sandra J Linek

Teresa Navarro Villalba

Disclosed are silicoaluminophosphates (SAPOs) having unique silicon distributions, a method for their preparation and their use as catalysts for the catalytic cracking of hydrocarbon feedstocks. More particularly, the new SAPOs have a high silica: alumina ratio, and are prepared from microemulsions containing surfactants.

Catalytic silicoaluminophosphates having an AEL structure, and their use in catalytic craking

Disclosed are silicoaluminophosphates (SAPOs) having unique silicon distributions, a method for their preparation and their use as catalysts for the hydroprocessing of hydrocarbon feedstocks. More particularly, the new SAPOs have a high silica:alumina ratio, and are prepared from microemulsions containing surfactants.

Hydroprocessing with catalytic silicoaluminophosphates having an AEL structure

Disclosed are silicoaluminophosphates (SAPOs) having unique silicon distributions, a method for their preparation and their use as catalysts for the catalytic cracking of hydrocarbon feedstocks. More particularly, the new SAPOs have a high silica:alumina ratio, and are prepared from microemulsions containing surfactants.

Naphtha cracking utilizing new catalytic silicoaluminophosphates having an AEL structure

The invention relates to a material comprised of silicotitanates having a crystalline structure similar to MCM-41 zeolites, said material being characterized in that it contains in its lattice atoms of titanium and channels in its porous structure whose average sizes exceed 10 .ANG., making possible its utilization in catalytic reactions wherein are involved large organic molecules, such as the oxidation of olefins to epoxides and glycols, alcohols to cetones, thio-ethers to sulfoxides and sulfones, and phenol to catechol and hydroquinone, and if Al is introduced into the structure it is then possible to prepare bifunctional catalysts 'oxidant-acid/base.' In order to obtain such product, and aqueous solution is used which contains the ion NR.sub.1 N.sub.2 N.sub.3 N.sub.4.sup.+ as well as another aqueous solution which contains tetramethyl ammonium hydroxide and a silica source (e.g. aerosil.RTM.. After homogenization, more silica is added, as is the Ti source �e.g. Ti(C.sub.2 OH.sub.5).sub.4 !. The resultant gel is heated in an autoclave at a temperature between 80.degree. and 200.degree. C. It is used for catalytic oxidation.

Structure material of the zeolite type with ultralarge pores and a

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Joaquin Perez Pariente