(19)
(11) EP 0 122 029 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
13.08.1986 Bulletin 1986/33

(43) Date of publication A2:
17.10.1984 Bulletin 1984/42

(21) Application number: 84301529

(22) Date of filing: 08.03.1984
(84) Designated Contracting States:
BE CH DE FR IT LI NL SE

(30) Priority: 09.03.1983 GB 8306492
17.03.1983 GB 8307451

(71) Applicant: COSWORTH RESEARCH AND DEVELOPMENT LIMITED
 ()

(72) Inventor:
  • Campbell, John
     ()

   


(54) Casting metal and reclaiming foundry sand


(57) A method of reclaiming used foundry sand containing an organic binder comprising the steps of separating said sand from a casting, supplying said sand to a fluid bed, fluidising said sand in said fluid bed with combustion supporting gas introduced into said sand at a plurality of locations so that the sand remains in said fluid bed in a fluidised state at an elevated treatment temperature range to reclaim said sand and removing reclaimed sand from said fluid bed.






Search report