公开(公告)号：CA2139220A1

公开(公告)日：1994-01-06

申请号：CA2139220

申请日：1993-06-29

Applicant: TECH RESOURCES PTY LTD

Inventor： CONOCHIE DAVID S ,  BATTERHAM ROBIN J ,  MATTHEWS TERRY A

IPC: C22B7/02 ,  F23G7/00

Abstract: 2139220 9400533 PCTABS00030 A method of treating inorganic solid waste in a bath of molten metal contained in a vessel (3) which has a space above the bath and a waste gas outlet (11) is disclosed. The method comprises injecting waste into the bath to form a primary reaction zone (13) in which there are reactions between the waste and the bath or in which the waste undergoes a change of phase to convert the waste into more readily recoverable or disposable products. The method further comprises injecting oxygen-containing gas towards the surface of the bath to form a secondary reaction zone (17) in a section of the space above the bath through which oxidisable products released from the primary reaction zone (13) flow to reach the waste gas outlet (11) in the vessel (3) and in which the oxidisable products are oxidised and the heat released by such oxidation is transferred into the bath.

公开(公告)号：CA2116248A1

公开(公告)日：1994-01-20

申请号：CA2116248

申请日：1993-07-09

Applicant: TECH RESOURCES PTY LTD

Inventor： BETTERHAM ROBIN J ,  HOFFMANN WARWICK A ,  CONOCHIE DAVID S ,  BATTERHAM ROBIN J

IPC: B01F3/04 ,  B01F5/04 ,  B01F15/02 ,  B01J8/18 ,  B01J10/00 ,  B01J19/18 ,  C02F3/14 ,  C02F3/20

Abstract: 2116248 9401210 PCTABS00030 A reactor for introducing a gas into a fluid comprises a mixing tank (12, 43) for the fluid and a partition means (13, 45) for dividing the tank into at least two chambers (21, 89) and (23, 91). The reactor further comprises a first pump means (14, 47) located in one of the chambers for circulating the fluid downwards in one chamber and then upwards in the other chamber and an aerator assembly (29, 49) for aerating a sidestream of the fluid and introducing the aerated fluid into the tank for mixing the aerated fluid with the circulating fluid in the tank. The aerator assembly (29, 49) comprises a bank of venturi aerators (38, 57) each having an aerator inlet; an aerator outlet; and a constriction intermediate the aerator inlet and the aerator outlet for creating a region of reduced pressure in the fluid, the constriction being elongate in a section transverse to the direction of flow of the fluid through the constriction; and a means for introducing the gas into the constriction to aerate the fluid.