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 a Cu-containing aluminosilicate;
• 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, an organic structure directing agent containing a quaternary ammonium cation, and water, wherein a component for a catalyst has 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:

• the step of providing a starting material composition comprising at least a Si—Al—Cu element source comprising at least a Cu-containing aluminosilicate which is an aluminosilicate having 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 (except for 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
• a hydrothermal treatment step of 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.