Slurry composition for catalyst and method for producing same, method for producing catalyst using this slurry composition for catalyst, and method for producing Cu-containing zeolite

A method for producing a slurry composition for a catalyst, comprising at least the steps of:

• providing an uncalcined Cu-containing aluminosilicate, an organic structure directing agent, and water;
• and
• preparing a slurry having a solid concentration of 0.1% by mass to 90% by mass by mixing at least the Cu-containing aluminosilicate, the organic structure directing agent containing a quaternary ammonium cation, and the water, wherein a component for the catalyst has a composition represented by Al2O3·xSiO2·yT2O·zCuO wherein T is a quaternary ammonium cation, and x, y and z are numbers that satisfy 10≤x≤40, 0.1≤y<2.0, and 0.1≤z<2.0, respectively, in terms of molar ratio based on an oxide.

A method for producing a Cu-containing zeolite, comprising at least:

• providing a starting material composition comprising at least a Si—Al—Cu element source comprising at least an uncalcined Cu-containing aluminosilicate which has a silica-alumina ratio of 2 or more and less than 15 and contains divalent Cu at a Cu/Al ratio of 0.1 or more and less than 1.0, a Si element source exclusive of those corresponding to the Si—Al—Cu element source, an organic structure directing agent which contains a quaternary ammonium cation and is substantially free from polyamine, and water;
• and
• hydrothermally treating the starting material composition to synthesize a Cu-containing zeolite having composition represented by Al2O3·xSiO2·yT2O·zCuO wherein T is a quaternary ammonium cation, and x, y and z are numbers that satisfy 10≤x≤40, 0.1≤y<2.0, and 0.1≤z<2.0, respectively, in terms of molar ratio based on an oxide.