PRODUCTION OF PYRIDINE BASES AND CATALYST THEREFOR

摘要

1287316 Ammination catalysts K O E I CHEMICAL CO Ltd 22 Oct 1970 [8 Nov 1969] 50150/70 Heading B1E [Also in Division C2] Catalysts comprise 100 p.b.w. silica-alumina and 0.1-30 p.b.w. BiF 3 and/or MnF 2 . They may be made by mixing the fluoride(s) with the carrier, by adding a fluoride and a soluble salt of Bi and/or Mn to an aqueous silicaalumina slurry and calcining the mixture. Some complex material such as KMnF 3 or (NH 4 ) 2 MnF 4 may be present.