Abstract: A novel agricultural and horticultural fungicide is disclosed. It contains as an active ingredient at least one crystalline zeolite selected from the group consisting of faujasite group, chabazite group and phillipsite group represented by the formula,aCuO.(1-a)M.sub.2 O.Al.sub.2 O.sub.3.bSiO.sub.2.cH.sub.2 Owherein M represents a sodium and/or potassium atom, and a, b and c fall in the following ranges,0<a.ltoreq.1, 3<b.ltoreq.12, 0.ltoreq.c.ltoreq.20.The fungicide shows a high activity against various diseases of fruits trees, vegetables, etc. and can be safely applied to crops.

Abstract: Process for producing pyridine bases by reacting an aliphatic aldehyde and/or ketone with ammonia in gaseous phase in the presence of a catalyst, characterized by using a catalyst which is obtained by modifying a zeolite having an atomic ratio of Si to Al, Fe and/or Ga of 12 to 1,000 and a constraint index of about 0.8 to about 12 with at least one metal ion and/or metal compound selected from the group consisting of thallium, lead and cobalt.

Abstract: .epsilon.-caprolactam is produced by gas phase catalytic synthesis with high selectivity of lactam wherein cyclohexanone oxime is brought into contact with a crystalline metallo-silicate catalyst having Si/metal atomic ratio is more than 500. The metal moiety in the catalyst is Ga, Fe, B, Zr, Bi, Nb, Zn, Be, Cr, La, Ti, Hf, V and/or Cu.

Abstract: .epsilon.-caprolactam is prepared by gas phase catalytic synthesis in which cyclohexanone oxime is brought into contact with crystalline alluminosilicate, for example, ZSM-5 H.sup.+ form) having 1-12 of constraint index, 500 or more, preferably 1000 or more, of Si/Al atomic ratio and 5.mu. equivalent/g or less, preferably 2.mu. equivalent/g, of external acid amount.