Microwave furnace for high temperature melting, decomposition or reduction to ash

(19)

(11)

EP 0 892 586 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	12.05.1999 Bulletin 1999/19

(43)	Date of publication A2:
	20.01.1999 Bulletin 1999/03

(21)	Application number: 97308663.0

(22)	Date of filing: 29.10.1997

(51)	International Patent Classification (IPC)⁶: H05B 6/64, H05B 6/80

(84)	Designated Contracting States:
	AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
	Designated Extension States:
	AL LT LV RO SI

(30)

Priority:

13.06.1997 GB 9712453

(71)	Applicant: Chelmsford Services Limited
	Douglas, Isle of Man IM99 1RZ (GB)

(72)	Inventor:
	Jaccard, Leon . (CH)

(74)	Representative: Maschio, Antonio et al
	D Young & Co, 21 New Fetter Lane London EC4A 1DA London EC4A 1DA (GB)

(54)	Microwave furnace for high temperature melting, decomposition or reduction to ash

(57) An apparatus for melt, decompose or reduce materials to ashes comprising a microwave source, a metallic chamber which retains the microwaves, having a vented door and a thermal insulating structure inside which there is a cavity where the samples are placed and where there is a microwave absorbing material able to be heated up to temperatures in excess of 1200 °C. The thermal insulating structure having three exchangeble front parts to suit different operation conditions. In particualr it is possible to perform the thermal treatment having a direct look to the sample without interrupting the treatment itself nor the microwave power.

Search report