UK's Johnson Matthey jumps on sale of unit to Honeywell for $2.4 billion

** British chemicals firm Johnson Matthey's shares soar to a one-year high, last up ~30% to 1,792p ** JMAT to sell its catalyst technologies business to Honeywell International for 1.8 billion pounds ($2.4 billion), including debt** Co expects deal to deliver net sale proceeds of ~1.6 billion pounds to the group - 88% of which will be returned to shareholders ** Stock on track for its biggest intraday pct gain on record** Shares up ~35% YTD($1 = 0.7451 pounds)