Method for producing mtw-type zeolite

A method for producing an MTW-type zeolite, comprising:

• (1) mixing a silica source, an alumina source, an alkali source, a lithium source, and water so as to obtain a reaction mixture having a composition represented by the following molar ratios:
• SiO2/Al2O3=12 to 200
• Na2O/SiO2=0.1 to 0.3
• Li2O/(Na2O+Li2O)=0.05 to 0.5
• H2O/SiO2=10 to 50;
• (2) adding an MTW-type zeolite which has a SiO2/Al2O3 ratio of 10 to 500 and does not contain an organic compound, as a seed crystal, to the reaction mixture in a proportion of 0.1 to 20% by weight relative to the silica component in the reaction mixture;
• and
• (3) airtightly heating the reaction mixture, to which the seed crystal has been added, at 100 to 200° C.