Abstract: There is disclosed a method of making, through direct synthesis, a catalyst comprising an Fe-SAPO-34 molecular sieve. There is also disclosed an Fe-SAPO-34 molecular sieve made according to the disclosed method herein, wherein the molecular sieve contains both framework iron and iron cations at ion-exchange sites. In addition, there is disclosed a method of using the Fe-SAPO-34 disclosed herein in a selective catalytic reduction reaction, typically in the presence of ammonia or urea, to reduce or remove nitric oxides from exhaust emissions.

Abstract: There is disclosed an organic-free, metal-containing zeolite Beta with a silica-to-alumina ratio (SAR) ranging from 5 and 20, and a metal content of at least 0.5 wt. %. There is also disclosed a method of making such a zeolite Beta without organic structure directing agent (SDA). The metal, which may comprise Fe or Cu, can be found in amounts ranging from 1-10 wt. %. A method of selective catalytic reduction of nitrogen oxides in exhaust gases using the disclosed zeolite is also disclosed.

Abstract: There is disclosed a hydrothermally stable microporous crystalline material comprising a molecular sieve or zeolite having an 8-ring pore opening structure, such as SAPO-34 or aluminosilicate zeolite, able to retain a specific percentage of its surface area and micropore volume after treatment with heat and moisture, such as at least 80% of its surface area and micropore volume after exposure to temperatures of up to 900° C. in the presence of up to 10 volume percent water vapor for a time ranging from 1 to 16 hours. Methods of using the disclosed crystalline material, such as in the SCR of NOx in exhaust gas are also disclosed, as are methods of making such materials.

Abstract: A new configuration of ZSM-5 is provided whereby the crystals have a higher average silica to alumina ratio at the edges of each crystallite than in the centre as determined from a narrow slit line scan profile obtained from SEM/EDX or TEM/EDX elemental analysis. Such ZSM-5 crystals are obtained by a preparation process using L-tartaric acid. The new configuration ZSM-5 provides significantly reduced xylene losses in ethylbenzene dealkylation, especially when combined with silica as binder, and one or more hydrogenation metals selected from platinum, tin, lead, silver, copper, and nickel. Further advantages are found if used in combination with a small crystal size ZSM-5.

Abstract: There is disclosed iron-containing aluminosilicate zeolites having both framework iron and iron cations on the ion-exchange sites. There is also disclosed a direct synthesis method of making an iron-containing aluminosilicate zeolite, which does not require the use of an intermediate step, such as ion-exchange or impregnation. In addition, there is disclosed a method of using the iron-containing aluminosilicate zeolite disclosed herein in a selective catalytic reduction reaction, typically in the presence of ammonia, to reduce or remove nitric oxides from exhaust emissions.

Abstract: There is disclosed a hydrothermally stable microporous crystalline material comprising a molecular sieve or zeolite having an 8-ring pore opening structure, such as SAPO-34 or aluminosilicate zeolite, able to retain a specific percentage of its surface area and micropore volume after treatment with heat and moisture, such as at least 80% of its surface area and micropore volume after exposure to temperatures of up to 900° C. in the presence of up to 10 volume percent water vapor for a time ranging from 1 to 16 hours. Methods of using the disclosed crystalline material, such as in the SCR of NOx in exhaust gas are also disclosed, as are methods of making such materials.

Abstract: There is disclosed a microporous crystalline material comprising a metal containing chabazite having a crystal size greater than 0.5 microns and a silica-to-alumina ratio (SAR) greater than 15, wherein the metal containing chabazite retains at least 80% of its initial surface area and micropore volume after exposure to temperatures of up to 900° C. in the presence of up to 10 volume percent water vapor for up to 1 hour. Methods of using the disclosed crystalline material, such as in the SCR of NOx in exhaust gas are also disclosed, as are methods of making such materials.

Abstract: There is disclosed a hydrothermally stable microporous crystalline material comprising a molecular sieve or zeolite having an 8-ring pore opening structure, such as SAPO-34 or aluminosilicate zeolite, able to retain a specific percentage of its surface area and micropore volume after treatment with heat and moisture, such as at least 80% of its surface area and micropore volume after exposure to temperatures of up to 900° C. in the presence of up to 10 volume percent water vapor for a time ranging from 1 to 16 hours. Methods of using the disclosed crystalline material, such as in the SCR of NOx in exhaust gas are also disclosed, as are methods of making such materials.

Abstract: There is disclosed iron-containing aluminosilicate zeolites having both framework iron and iron cations on the ion-exchange sites. There is also disclosed a direct synthesis method of making an iron-containing aluminosilicate zeolite, which does not require the use of an intermediate step, such as ion-exchange or impregnation. In addition, there is disclosed a method of using the iron-containing aluminosilicate zeolite disclosed herein in a selective catalytic reduction reaction, typically in the presence of ammonia, to reduce or remove nitric oxides from exhaust emissions.

Abstract: There is disclosed a hydrothermally stable microporous crystalline material comprising a molecular sieve or zeolite having an 8-ring pore opening structure, such as SAPO-34 or aluminosilicate zeolite, able to retain a specific percentage of its surface area and micropore volume after treatment with heat and moisture, such as at least 80% of its surface area and micropore volume after exposure to temperatures of up to 900° C. in the presence of up to 10 volume percent water vapor for a time ranging from 1 to 16 hours. Methods of using the disclosed crystalline material, such as in the SCR of NOx in exhaust gas are also disclosed, as are methods of making such materials.

Abstract: A method for converting amino ether alcohols to amino ether amines by amination in the vapor phase with a catalyst comprising copper and zinc. The catalyst may also comprise an alkali, alkaline earth, or lanthanide element as a promoter.

Abstract: A method for converting amino ether alcohols to amino ether amines by amination in the vapor phase with a catalyst comprising copper and zinc. The catalyst may also comprise an alkali, alkaline earth, or lanthanide element as a promoter.

Abstract: A new method of making phosphate-based catalysts by mixing phosphoric acid with a substantially water insoluble alkaline earth metal salt such that the phosphorus to alkaline earth metal molar ratio is less than 1. The product, containing alkaline earth metal hydrogen phosphate and the starting alkaline earth metal salt, is filtered and dried. The product can be used as a catalyst in the production of triethylenediamine from, for example, mono- and di-substituted piperazines, such as hydroxyethylpiperazine and aminoethylpiperazine, ethanolamines and substituted ethanolamines, and crude hydroxyethylpiperazine containing piperazine, hydroxyethylpiperazine, bis-hydroxyethylpiperazine, and water.

Abstract: An improved process for the production of bis (N,N-dialkylaminoalkyl)ether having the formula (R.sub.2 NR').sub.2 O, wherein R is methyl or ethyl and R' is ethyl or propyl, by reacting vaporized N,N-dialkylaminoalkanol of the formula R.sub.2 NR'OH, wherein R and R' are as defined above, in the presence of a heterogeneous solid basic catalyst. The bis (N,N-dialkylaminoalkyl)ether compounds, especially bis (N,N-dimethylamino)ethyl ether, are useful in the production of polyurethane foams.

Abstract: A process for preparing triethylenediamine and piperazine by passing an ethanolamine, ethyleneamine, piperazine or morpholine over a pentasil-type zeolite at elevated temperature characterized by employing a ZSM-5 zeolite in the hydrogen or ammonium form which has been treated with a passivating agent which is a silicon-containing compound capable of deactivating the acidic sites on the zeolite surface.

Abstract: A process for the production of predominantly primary and secondary amines and little or no tertiary amines by the reductive amination of aliphatic alcohols using a metal exchanged crystalline aluminosilicate catalyst. The catalyst has a silica/alumina ratio ranging from about 10:1 to 40:1, contains about 1 to 10% by weight of cobalt or nickel and about 0.05 to 5% by weight of at least one other metal. High conversion rates are achieved at moderate temperatures and pressures.

Abstract: A process for preparing triethylenediamine by passing an amine compound over a catalyst at elevated temperature to afford a reaction product containing triethylenediamine and piperazine, the amine compound having, in the molecule, a moiety represented by the following general formula ##STR1## where R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are independently a hydrogen atom or an alkyl group having 1 to 4 carbon atoms and X is oxygen or nitrogen characterized by adding an ethylating compound containing at least one nitrogen and/or oxygen atom to the reaction product and contacting the reaction product, under conditions sufficient to produce triethylenediamine from the ethylating compound and piperazine, with a condensation/cyclization shape-selective zeolite catalyst demonstrating a triethylenediamine/piperazine weight ratio uptake value of at least 6:1.

Abstract: A process for preparing triethylenediamine by passing an ethanolamine, ethyleneamine, piperazine or morpholine over a pentasil-type zeolite at elevated temperature characterized by employing a ZSM-5 zeolite in the hydrogen or ammonium form which has been pretreated with an aqueous solution of a chelating agent capable of forming a chelate-aluminum complex.

Abstract: A process for preparing triethylenediamine by passing an ethanolamine, ethyleneamine, piperaziHe or morpholine over a pentasil-type zeolite at elevated temperature characterized by employing a ZSM-5 zeolite in the hydrogen or ammonium form which has been pretreated with an aqueous caustic solution.

Abstract: The present invention is a composition, a synthesis of the composition and a method of using the composition for selectively adsorptively separating nitrogen from oxygen wherein the composition is a crystalline EMT with a Si/Al ratio less than 2.0 and a micropore volume determined in the sodium and/or potassium form of at least 0.20 cm.sup.3 /g and a lithium cation exchange of at least 80%, preferably including an intergrowth with a crystalline FAU structure, wherein the pure or intergrowth compositions have the chemical formula:M.sub.2/n O:X.sub.2 O.sub.3 :(2.0 to <4.0)SiO.sub.2wherein M=one or more metal cations having a valence of n, and X is selected from the group consisting of aluminum, gallium and boron, preferably aluminum.