| 摘要 |
A crystalline aluminosilicate catalyst composition contains from 0.5-1.0 equivalent per gm. atom of Al of ions of positive valence consisting of hydrogen or ammonium ions and cations of a metal selected from Group Ib-VIII. The catalyst may be intimately admixed with an inorganic oxide gel. The aluminosilicate may be of natural or synthetic origin and numerous examples are given including zeolites A, B, D, E, F, L, Q, R, S, T, X, Y, Z; levynite, orionite, faujasite, analcite, paylingite, noselite, ferriorite, heulandite, scolecite, stilbite, clinoptilolite, harmotome, phillipsite, brewsterite, flakite, datolite and aluminosilicates represented as follows:-chabazite, gmelinite, cancrinite, leucite, lazurite, scapolite, mesolite, ptilolite, mordenite, nepholine, natrolite, and sodalite. Of the clay materials, montmorillonite and kaolin families are representative types which include the bentonites, such as bentonite, and the kaolins commonly identified as Dixie, McNamee, Georgia and Florida clays in which the main mineral constituents as halloysite, kaolinite, dickite, nacrite, or anauxite. Such clays may be used in the raw state as originally mined or initially subjected to calcination, acid treatment or chemical modification. In order to render the clays suitable for use, however, the clay material is treated with sodium hydroxide or potassium hydroxide, preferably in admixture with a source of silica, such as sand, silica gel or sodium silicate, and calcined at temperatures ranging from 2300 DEG F. to 1600 DEG F. The catalyst may contain ions of Sc, Y, Ac, Cm, Ce, La, Pr, Nd, Il, Sm, Eu, Gd, Tb, Dy, Ho, Eb, Tm, Yt and Lu. Others specified are Ag, Mg, Ca, Zn, Ba, Fe and Mn. The inorganic oxide gel is usually SiO2 or Al2O3. Minor amounts of promoters, e.g. Ce, Cr, Co, W, U, Pt, Zn, Ca, Mg, Ba, Li, Ni may be present.ALSO:A crystalline aluminosilicate catalyst composition contains from 0,5-1,0 equivalent per gm. atom of Al of ions of positive valence consisting of hydrogen or ammonium ions and cations of a metal selected from Group Ib-VIII. The catalyst may be intimately admixed with an inorganic oxide gel. The aluminosilicate may be of natural or synthetic origin and numerous examples are given including zeolites A, B, D, E, F, L, Q, R, S, T, X, Y, Z; levynite, orionite, faujasite, analcite, paylingite, noselite, ferriorite, heulandite, scolecite, stilbite, clinoptilolite, harmotome, phillipsite, brewsterite, flakite, datolite and aluminosilicates represented as follows: chabazite, gmelinite, cancrinite, leucite, lazurite, scapolite, mesolite, ptilolite, mordenite, nepholine, natrolite and sodalite. Of the clay materials, montmorillonite and kaolin families are representative types which include the bentonites, such as bentonite, and the kaolins commonly identified as Dixie, McNamee, Georgia and Florida clays in which the main mineral constituent is halloysite, kaolinite, dickite, nacrite, or anauxite. Such clays may be used in the raw state as originally mined or initially subjected to calcination, acid treatment or chemical modification. In order to render the clays suitable for use, however, the clay material is treated with sodium hydroxide or potassium hydroxide, preferably in admixture with a source of silica, such as sand, silica gel or sodium silicate, and calcined at temperatures ranging from 2300 DEG F. to 1600 DEG F. The catalyst may contain ions of Sc, Y, Ac, Cm, Ce, La, Pr, Nd, Il, Sm, Eu, Gd, Tb, Dy, Ho, Eb, Tm, Yt and Lu. Others specified are Ag, Mg, Ca, Zn, Ba, Fe and Mn. The inorganic oxide gel is usually SiO2 or Al2O3. Minor amounts of promoters, e.g. Ce, Cr, Co, W, U, Pt, Zn, Ca, Mg, Ba, Li, Ni may be present.
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