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(11)    Patent No :    AP 2162   
(21)    Application No :    AP/P/2007/004203   
(22)    Filing Date :    23.03.2006   
(24)    Date of Grant &    01.11.2010   
           
(45)    Publication :

(30)  Priority Data       
(33) Country    (31) Number    (32) Date
ZA    2005/02447    24.03.2005

(84)    Designated State

BW    GM    GH    KE    LS    MW  MZ   NA   SL
SD    SZ    T Z    UG    ZM    ZW

(73) Applicant(s)

BOSCH PROJECTS (PTY) LTD, 203 North Ridge Road,

Morningside, Durban, 4001, Kwazulu Natal,
South Africa

(72) Inventors

GIBBON Michael, John, South Africa

YEO William, Howard, South Africa

(74) Representative

FISHER CORMACK & BOTHA
 

(51)  International  Classification   C13D1/10 (2006.01)    B01D11/02 (2006.01)
B65G 25/02 (2006.01)   


(54)    Title

Method and apparatus for transporting a product within a diffuser.

(57)    Abstract

A method and apparatus for transporting a product within a diffuser during a continuous lixiviation process. The apparatus comprises at least one screen deck for the continuous lixiviation process and at least one longitudinal transport zone, the longitudinal transport zone extending between an inlet and outlet of the diffuser. The transport zone may include a plurality of transport zones. A drive means is arranged to move the longitudinal transport zone at a first speed towards the outlet end of the diffuser and to retract the longitudinal transport zone at a second speed which is substantially faster than the first speed towards the inlet end of the diffuser, so that the transport

(56)    Documents Cited :    US 3731613 A    GB 1262917 A    WO 97/24533 A

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