Preparation of impurity-free zeolites from coal-mine schists

✍ Scribed by J.E. Gilbert; A. Mosset

• Publisher: Elsevier Science
• Year: 1998
• Tongue: English
• Weight: 641 KB
• Volume: 35
• Category: Article
• ISSN: 0992-4361
• DOI: 10.1016/s0992-4361(98)80022-2

✦ Synopsis

Synthetic conditions of various zeolites have been investigated starting from coal-mine wastes. Inorganic (NaOH, KOI-I) or organic (TMAOH, TPAOH, quinuclidine) bases have been used as reacting solution resulting in the preparation of more than ten zeolites with different structural types : MFI, LTL, ERI-OFF, CHA, MER, GIS, ANA, CAN, SOD. The use of a ring separator in the teflon reactor allows to prepare well crystallized impurity-free zeolites.