Abstract:
Feedstock comprising oxygenates is converted to product comprising hydrocarbons over catalyst having been prepared by reacting a high-silica zeolite with an acidic inorganic oxide in the presence of water.
Abstract:
Feedstock comprising C.sub.2.sup.+ olefins, C.sub.2 -C.sub.7 paraffins or a mixture thereof is converted to product comprising C.sub.5.sup.+ hydrocarbon compounds over catalyst having been prepared by reacting a high-silica zeolite with an acidic inorganic oxide in the presence of water.
Abstract:
The acid activity of a high silica content crystalline zeolite that contains framework boron is increased by hydrolyzing a portion of the boron and compositing the crystals with a binder that contains alumina.
Abstract:
Addition of AgHZSM-5 to conventional cracking catalysts results in a significant increase in gasoline octane without undue loss in gasoline yield. This octane increase is greater than could be achieved by adding HZSM-5.
Abstract:
A method of preparing a highly siliceous porous crystalline material related to the zeolite ZSM-12 having a composition, in terms of mole ratios of oxides, after dehydration, as follows:(1.0.+-.0.4)M.sub.2 /.sub.n O.multidot.Al.sub.2 O.sub.3 .multidot.(20-.infin.)SiO.sub.2,wherein M is at least one cation having a valence n, and characterized by an x-ray diffraction pattern whose values are set forth in Table 1 of the specification.
Abstract:
The acid activity of a high silica content crystalline zeolite that contains framework boron is increased by hydrolyzing a portion of the boron before compositing the crystals with a binder that contains alumina.
Abstract:
A method for selectively sorbing Group V-B element hydrides and derivatives thereof from an aqueous solution containing same which comprises contacting said solution under ion-exchange conditions with a crystalline zeolite material having a pore dimension greater than about 5 Angstroms, a Constraint Index between 1 and 12 and a SiO.sub.2 /Al.sub.2 O.sub.3 mole ratio greater than 12.
Abstract translation:从含有它的水溶液中选择性吸附VB族元素氢化物及其衍生物的方法,其包括在离子交换条件下使所述溶液与孔尺寸大于约5埃的结晶沸石材料接触,约束指数为1至12 和SiO 2 / Al 2 O 3摩尔比大于12。
Abstract:
A method of removing the organic cation from an organic cation-containing zeolite which comprises contacting the zeolite at low temperatures with an aqueous solution of a compound of a class of chemical treating agents that will improve the dispersive and catalytic properties of the zeolite.
Abstract:
A catalytic process is provided for converting gaseous paraffinic feedstocks containing ethane to liquid aromatics by contacting said gaseous feeds, in the absence of added air or oxygen, under conversion conditions, with a crystalline aluminosilicate zeolite catalyst having incorporated therein a minor amount of a metal selected from Groups VIII, IIB and IB of the Periodic Table and mixtures thereof thereby converting ethane in said feed to aromatics and recovering said aromatics as liquids.