I found this recently and thought about this.
Post 240886 (missing)
(MaDMAx: "Dehydration of SnCl4.5(H20)", Chemistry Discourse)PAT-NO: JP401042302A
DOCUMENT-IDENTIFIER: JP 01042302 A
TITLE: PRODUCTION OF METAL HALOGENIDE
PUBN-DATE: February 14, 1989
INVENTOR-INFORMATION:
NAME
NANJO, MICHIO
NISHIMURA, YAMAJI
WATANABE, MORIO
ASSIGNEE-INFORMATION:
NAME COUNTRY
KK NISHIMURA WATANABE CHIYUUSHIYUTSU N/A
KENKYUSHO
APPL-NO: JP62097426
APPL-DATE: April 22, 1987
INT-CL (IPC): C01B009/00;C01B019/00 ;C01F017/00 ;C01G001/06 ;C01G009/04
;C01G015/00 ;C01G017/04 ;C01G019/04 ;C01G021/16 ;C01G027/04 ;C01G028/00
;C01G029/00 ;C01G030/00 ;C01G031/04 ;C01G037/00 ;C01G039/04 ;C01G041/04
;C01G047/00 ;C01G049/10 ;C01G051/08 ;C01B007/00
US-CL-CURRENT: 423/494
ABSTRACT:
PURPOSE: To obtain metal halogenide having high purity at a low cost and in energy saving by a simplified process without restriction of raw material, by
heating org. solvent contg. oxygen atom and(or) alkylamine and having extracted specified metal halogenide complexes, and by evaporating or distillating.
CONSTITUTION: One or more kinds of metal halogenide complex ion selected among As, Bi, Cd, Ce, Co, Cr, Fe, Ga, Ge, In, Hf, Mo, Pb, Re, Sb, Se, Sc, Sn, Te, Tl, V, W and Zn, produced in an acid soln. such as hydrochloric acid are brought into contact with the org. solvent contg. oxygen atom and(or) alkylamine org. solvent, and the solvents extracting and contg. the complex ion above-mentioned are dehydrated and dried, at need, with drying agent such as anhydrous Glauber's salt and anhydrous CaCl
2 and thereafter, is evaporated or distillated by heating under ordinary pressure to produce the metal halogenide having high purity together with regeneration of the org. solvent contg. oxygen atom and(or) alkylamine org. solvent .
