Title:
ALUMINA DIGESTING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2007/045154
Kind Code:
A1
Abstract:
An alumina digesting apparatus, comprises the following devices: high pressure
diaphragm pumps, double-pipe preheaters, pulse buffers, autoclaves with heating
tube bundles, autoclaves and flash evaporators. The devices are connected successively
by pipes according to leaching process. The apparatus enhances the output of
alumina from 450kt/year by existing apparatus to above 500kt/year, so that productivity
could be enhanced.
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Inventors:
CHEN DE (CN)
Application Number:
PCT/CN2006/002701
Publication Date:
April 26, 2007
Filing Date:
October 13, 2006
Export Citation:
Assignee:
CHINA ALUMINUM INTERNAT ENGINE (CN)
CHEN DE (CN)
CHEN DE (CN)
International Classes:
C22B3/02; C01F7/064; C22B21/00
Domestic Patent References:
WO2005066378A1 | 2005-07-21 |
Foreign References:
CN1752231A | 2006-03-29 | |||
CN1620405A | 2005-05-25 | |||
RU2033968C1 | 1995-04-30 | |||
RU2117632C1 | 1998-08-20 | |||
RU2256614C2 | 2005-07-20 |
Other References:
LI X. AND FAN W.: "Problems in High-pressure Leaching and its Improving Method", LIGHT METAL, no. 6, 2002, pages 11 - 13, XP008080139
Attorney, Agent or Firm:
CHINA PATENT AGENT (H.K.) LTD. (Great Eagle Centre 23 Harbour Roa, Wanchai Hong Kong, CN)
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