Process for preparing a molding comprising zinc and a titanium-containing zeolite

A molding comprising zinc and a titanium-containing zeolitic material having framework type MWW, obtained by a process comprising:

• (i) providing a molding comprising a titanium-containing zeolitic material having framework type MWW;
• (ii) preparing an aqueous suspension comprising a zinc source and the molding comprising a titanium-containing zeolitic material having framework type MWW prepared in (i);
• (iii) heating the aqueous suspension prepared in (ii) under autogenous pressure to a temperature of the liquid phase of the aqueous suspension of from 100 to 200° C., thereby obtaining an aqueous suspension comprising a molding comprising zinc and a titanium-containing zeolitic material having framework type MWW;
• and
• (iv) separating the molding comprising zinc and a titanium-containing zeolitic material having framework type MWW from the liquid phase of the suspension obtained in (iii);
• wherein in (ii), the zinc source comprises a zinc compound which is soluble in water at a temperature and pressure of the liquid aqueous phase according to (iii).