Patent ID: 7011810

Claim:
A process for the manufacture of a crystalline molecular sieve of the MFS structure type, the process comprising hydrothermal treatment of a synthesis mixture containing: a) sources of alkali metal ions, aluminium, and silicon; b) water; c) R 1 , an N,N,N,N′,N′,N′-hexaethylpentane diammonium salt; and d) R 2 , an amine of formula NR 1 R 2 R 3 or a quaternary ammonium compound of formula R 1 R 2 R 3 R 4 NX; wherein: i) R 1 , R 2 , R 3 , and R 4 , which may be identical or different, each independently represents: 1) a hydrogen atom, 2) a linear alkyl group having from 1 to 8 carbon atoms, 3) a branched alkyl group having from 3 to 8 carbon atoms, or 4) a cycloalkyl group having 5 or 6 carbon atoms, ii) at least one of R 1 , R 2 , and R 3 , and if present R 4 , being other than hydrogen, and iii) X represents an anion.