Title:
A ZINC REFINING PROCESS WITH OXYGEN-ENRICHED AND THE ENCLOSED SMELTING FURNACE THEREOF
Document Type and Number:
WIPO Patent Application WO/2005/078146
Kind Code:
A1
Abstract:
A pyrometallurgy process for refining zinc, pig iron, coarse lead and coal gas, and the furnace thereof, which comprises upper electric furnace, intermediate bast furnace, lower main frequency furnace and oxygenerator and its other units including water-condensed zinc collecting pool and lead collecting pool, liquid zinc tank, zinc powder cabinet and bag-type dust collector and so on. It further comprises material treatment system, preheating system, power supply system, water supply and sewerage system and lifting and transport system etc.
Inventors:
LAI CHENGZHANG (CN)
Application Number:
PCT/CN2005/000083
Publication Date:
August 25, 2005
Filing Date:
January 19, 2005
Export Citation:
Assignee:
LAI CHENGZHANG (CN)
International Classes:
C21B5/02; C21B11/00; C21B13/00; C21B13/14; C21C1/00; C22B4/00; C22B4/08; C22B19/02; C22B19/08; C22B19/32; F27B19/04; (IPC1-7): C22B19/02; F27B19/04
Foreign References:
| CN1300862A | 2001-06-27 | |||
| CN1023904A | ||||
| JPH05831046A | ||||
| US5358544A | 1994-10-25 | |||
| GB2297559A | 1996-08-07 |
Other References:
CHEN CHAO ET AL: "Production of tinc powder by using electric arc furnaces.", CHINA MOLYBDENUM INDUSTRY., vol. 22, April 1998 (1998-04-01), pages 37 - 39
Attorney, Agent or Firm:
BEIJING SAN GAO YONG XIN INTELLECTUAL PROPERTY AGENCY CO., LTD (No.12 Building Ji Men Dong Li, Xueyuan Roa, Haidian District Beijing 8, CN)
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