Crystalline aluminosilicate zeolite catalyst and the method for manufacturing thereof

A process for making a ZKU-catalyst, comprising:

• providing a composition having the following molar ratios:
• ______________________________________ SiO.sub.2 /Al.sub.2 O.sub.3 8-70 OH.sup.- /SiO.sub.2 0.2-1.6 H.sub.2 O/SiO.sub.2 10-30 M/SiO.sub.2 0.2-1.7 R/SiO.sub.2 0.0086-0.20 R/R + M 0.0005-0.40 K.sub.2 O/M.sub.2 O 0.05-0.3 ______________________________________
• heating said composition to a temperature of from about 150.degree. C. to about 270.degree. C.;
• maintaining said composition at said temperature for a period of from about 0.5 to about 20 hours and forming a crysallized product thereby;
• further processing said crystallized product by filtering, washing and drying;
• and
• calcining said product at a temperature of from about 400.degree. C. to about 600.degree. C. for a period of from about 0.5 to about 5 hrs.;
• wherein R is a conditioning agent comprising a tetraalkyl ammonium cation, the alkyl moieties of which being the same or different and selected from the group consisting of methyl and ethyl;
• wherein M is selected from the group consisting of alkali metal ions;
• and
• wherein said crystallized product has X-ray diffraction pattern as shown in Table I of the specification.

A process for making a ZKU-catalyst, comprising:

• providing a composition having the following molar ratios:
• ______________________________________ SiO.sub.2 /Al.sub.2 O.sub.3 8-70 OH.sup.- /SiO.sub.2 0.2-1.6 H.sub.2 O/SiO.sub.2 10-30 M/SiO.sub.2 0.2-1.7 R/SiO.sub.2 0.0086-0.20 R/R + M 0.0005-0.40 K.sub.2 O/M.sub.2 O 0.05-0.3 ______________________________________
• mixing said composition with a quantity of seed crystals of the same said composition or with a combination of said seed crystals and a quantity of a crystal skeleton;
• heating the mixture to a temperature of from about 150.degree. C. to about 270.degree. C.;
• maintaining said mixture at said temperature for a period of from about 0.5 to about 20 hrs. and forming a crystallized product thereby;
• further processing said crystallized product by filtering, washing and drying;
• and
• calcining said product at a temperature of from about 400.degree. C. to about 600.degree. C. for a period of from about 0.5 to about 5 hrs.;
• wherein R is a conditioning agent comprising a tetraalkyl ammonium cation, the alkyl moieties of which being the same or different and selected from the group consisting of methyl and ethyl;
• wherein M is selected from the group consisting of alkali metal ions;
• and
• wherein said crystal skeleton is selected from the group consisting of .alpha.-alumina powders, kaoline powders, zeolite powders, porcelain powders and combinations thereof.