Table 1

1858Eichorn points out the ion-exchange capability of zeolites [7]
1862de St. Claire-Deville synthesizes the first artificial zeolite, levynite [8]
1876–1905Studies on ion-exchange in zeolites [911]
1930Taylor reveals the structure of analcime [12]
1932McBain introduces the term molecular sieve [13]
1938Barrer presents a remarkable work on molecular sieving [14]
1940–1945Reports on zeolite molecular sieves with different pore sizes
1950–1972Synthesis of Zeolites A [15], X, and Y [16], and ZSM-5 [17]