Patent ID: 6781005
Filing Date: 2004-08-24
Classification: C01B

Abstract:
In a liquid phase process for the direct fluorination of borohydride salts to broadly produce compounds of the formula, Ma[RbZcBdHeFy]k where M is a cation having a valence of from 1-4, R is a halogen or an alkyl group, Z is C, Si, Ge, Sn, Pb, N, P, As, Sb, or Bi; B is boron, H is hydrogen, a is 1 or 2; b is an integer from 0 to 7; c is an integer from 0 to 1; d is an integer from 5 to 12; e is an integer from 0 to 9; y is an integer from 3 to 12 and is 1, 2 or 3 wherein a multiplied by the valence of M is equal to the integer k or 2 times the integer and further wherein said borohydride salt is contacted with fluorine, under conditions for forming said compound, the improvement in the liquid phase process which comprises:effecting the fluorination of said borohydride salt in the presence of a reaction medium having an acidity between that of water and neat HF.