Title:
METHOD FOR PRODUCING ZINC OXIDE AND DEVICE FOR CARRYING OUT SAID METHOD
Document Type and Number:
WIPO Patent Application WO/2002/092513
Kind Code:
A1
Abstract:
The inventive method for producing zinc oxide consists in injecting powdered zinc contained in the flow of oxygen-containing gas in to a reaction zone. Said zone is pre-heated to a temperature ranging from the zinc boiling point to near 1250 °C. In the reaction zone, the powered zinc is heated and molten, the formation of zinc vapour and the exothermic oxidation thereof are carried out at a temperature ranging from 1150 to 1250 °C, thereby obtaining a zinc oxide aerosol and a heat liberation. The heat thus produced is conveyed to said heating, melting and zinc vapour formation stages, the powered zinc being in suspension state during the stages. Afterwards, a target product is extracted from the obtained aerosol. The inventive device for carrying out said method comprise a hermetical body (1) provided with a reaction chamber (5), a mechanism (6) for initial zinc supply to the reaction chamber (5) provided with a nozzle (8) for dosed supply of metallic powered zinc (7) to the reaction chamber (5). The longitudinal axis of said mechanism is disposed at an angle ranging from 35° to 55° with respect to the vertical axis of the body (1). The output orifice of the nozzle (8) is arranged under the output orifice (17) of a unit (15) for supplying the oxygen containing gas to the reaction chamber (5) in order to oxidise zinc.
Inventors:
ESTRIN IGOR ARNOLDOVICH (RU)
MASLENKOV DMITRY ALEXANDROVICH (RU)
MASLENKOV DMITRY ALEXANDROVICH (RU)
Application Number:
PCT/RU2001/000194
Publication Date:
November 21, 2002
Filing Date:
May 17, 2001
Export Citation:
Assignee:
INTROTECH ENTPR LTD (GB)
ESTRIN IGOR ARNOLDOVICH (RU)
MASLENKOV DMITRY ALEXANDROVICH (RU)
ESTRIN IGOR ARNOLDOVICH (RU)
MASLENKOV DMITRY ALEXANDROVICH (RU)
International Classes:
C01G9/03; C22B19/34; (IPC1-7): C01G9/03; C22B19/34
Foreign References:
| SU1011525A1 | 1983-04-15 | |||
| SU956430A1 | 1982-09-07 | |||
| GB1121088A | 1968-07-24 | |||
| GB1039762A | 1966-08-24 | |||
| RU2087569C1 | 1997-08-20 |
Attorney, Agent or Firm:
PATENT AGENCY 'VCPU' (Box 6 Moscow, 9, RU)
Download PDF: