Chemistry of inorganic compounds – Halogen or compound thereof – Plural metal or metal and ammonium containing
Patent
1992-11-09
1994-06-07
Fuller, Benjamin R.
Chemistry of inorganic compounds
Halogen or compound thereof
Plural metal or metal and ammonium containing
C01F 750
Patent
active
053187644
ABSTRACT:
Potassium tetrafluoroaluminate and potassium hexafluoroaluminate have been produced by three new processes: (a) by reacting alumina trihydrate with freshly produced, hot, solvated potassium fluoride or potassium bifluoride solution in presence of stoichiometric amounts and/or an excess of hydrogen fluoride, or (b) by reacting aluminum trifluoride trihydrate with hot aqueous solution in potassium fluoride or potassium bifluoride, or (c) by generating in situ potassium aluminate by reacting alumina trihydrate with hot aqueous potassium hydroxide and treating the same with aqueous or anhydrous hydrogen fluoride.
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Phillips, et al. Dec. 1966, Equilibria in KAIF.sub.4 -Containing Systems, Journal of The American Ceramic Society, vol. 49, No. 12, pp. 631-634.
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Bhagat Sudhir S.
Contractor Dinshaw B.
Kumar Sampath H.
Meshri Dayal T.
Meshri Sanjay
Advance Research Chemicals, Inc.
Fuller Benjamin R.
Lund Valerie Ann
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