摘要:
A method is disclosed for making a silica molecular sieve comprising:(A) providing a mixture comprising: water; an oxide, hydroxide or alkoxide of silicon; a mineralizing agent; and a synthesis directing nitrogen containing organic dye; and(B) maintaining said mixture at a temperature of about 80.degree. C. to about 300.degree. C. for an effective period of time to provide said silica molecular sieve.
摘要:
Solid catalysts comprising a solid inorganic catalyst support material and polymeric transition metal complex are ideally suited for use as solid catalysts in various vapor phase heterogeneous continuous reactions.
摘要:
Crystalline Group IIIB metallophosphates are provided herein having a composition in terms of mole ratios of oxides in the synthesized state of:X(M'.sub.2 O):Y(M.sub.2 O.sub.3):Z(P.sub.2 O.sub.5):nH.sub.2 O (I)whereinM' is an alkali metal;M is a Group IIB metal;x/y is a number from about 1.1 to about 1.9;z/y is a number from about 1 to about 1.9n/y is a number from about 0 to about 8.Also provided is the use of these metallophosphates as ion exchange materials.
摘要翻译:本文提供的结晶IIIB族金属磷酸盐具有以下合成状态的氧化物的摩尔比的组成:X(M'2O):Y(M2O3):Z(P2O5):nH2O(I)其中M'是碱 金属; M是IIB族金属; x / y是约1.1至约1.9的数; z / y为约1至约1.9的数,n / y为约0至约8的数。还提供了这些金属磷酸盐作为离子交换材料的用途。
摘要:
Catalysts comprising the mixed oxides of ruthenium, copper, at least one alkali metal and at least one of rhodium, iridium, palladium, and platinum are provided which are useful in the upgrading of synthesis gas, particularly for obtaining alkanes and alcohols.
摘要:
A process is provided for the vapor phase hydrogenation of carboxylic acids to yield their corresponding alcohols in the presence of steam and a catalyst comprising the mixed oxides of ruthenium, at least one of cobalt, nickel, and optionally one of cadmium, zinc, copper, iron, rhodium, palladium, osmium, iridium and platinum. A process is further provided for the preparation of carboxylic acid esters from carboxylic acids in the absence of steam utilizing the above-identified catalysts.
摘要:
Catalysts comprising the mixed oxides of ruthenium, copper, at least one alkali metal and at least one of rhodium, iridium, palladium, and platinum are provided which are useful in the upgrading of synthesis gas, particularly for obtaining alkanes and alcohols.
摘要:
Five, six and seven member nitrogen-containing saturated heterocyclic compounds can be prepared by the catalytic hydrogenation/cyclization of beta, gamma and delta-cyanoesters. Applicants have discovered that this reaction is especially effective when it is conducted in the presence of catalysts comprising at least one of ruthenium and iron.
摘要:
A method for preparing a molecular sieving metallosilicate is disclosed which comprises(A) providing a mixture comprising: water; an oxide of silicon source; a mineralizing agent and/or synthesis directing agent; and a heteropolymetallate of the formulaA.sub.a L.sub.l M.sub.m J.sub.z O.sub.y .dH.sub.2 O whereinA is an ion selected from the group consisting of hydrogen; one or more of the Group I-A to VI-A or Group I-B to VI-B metals; one or more of the rare earth metals; ammonium, alkyl ammonium, alkyl phosphonium or alkyl arsonium; or a mixture of two or more thereof;M is Zn, Ga, Ge, Ti, Cr, Mn, Fe, Co, B, Ni, Rh, Zr or a mixture of two or more thereof;L is P, As, Si, Al, H or a mixture of two or more thereof;J is Mo, W, V, Nb or a mixture of two or more thereof;a is a number which when multiplied by the charge of A will result in balancing the charge on the complex within the brackets;l is a number ranging from zero to about 20;m is a number ranging from zero to about 20;z is a number ranging from about 1 to about 50;y is a number ranging from about 7 to about 150;d is a number ranging from about zero to about 150; and(B) maintaining said mixture at a temperature of about 80.degree. C. to about 300.degree. C. for an effective period of to form said molecular sieving metallosilicate.
摘要:
A process is provided for the production of aliphatic acetate esters and gaseous alkanes comprising contacting acetic acid and synthesis gas in the vapor phase at elevated temperature and pressure in the presence of a catalyst containing the mixed oxides of ruthenium and nickel, and optionally an alkali metal oxide and the oxides of cobalt, cadmium, zinc or mixtures thereof. Other carboxylic acids may be substituted for acetic acid as desired.
摘要:
A process for the selective hydrocarboxylation of propylene to produce predominantly isobutyric acid in the liquid phase is provided. The reaction of propylene, carbon monoxide and water is effected at a temperature of about 75.degree. C. to about 150.degree. C. and at a pressure of about 250 psi to about 5000 psi in the presence of a suitable solvent and a catalyst comprising palladium or a palladium compound, a phosphoamine promoter ligand compound and a hydrogen halide.