Title:
ZINC OXIDE ORE PRODUCTION METHOD
Document Type and Number:
Japanese Patent JP2017048411
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a zinc oxide ore production method to maintain a high removal rate of halogen in a furnace while inhibiting generation of coating on a rotary kiln for drying/heating, and to be able to produce high-quality zinc oxide ore under high productivity.SOLUTION: A zinc oxide ore production method including a drying/heating step to fire a raw material containing zinc and fluorine with a rotary kiln and make it into zinc oxide ore, makes air at a space velocity of 49 to 60 inclusive defined below flow into the rotary kiln from a discharge end side which discharges the zinc oxide ore.SELECTED DRAWING: Figure 1
Inventors:
KOMORI SHINTARO
KUSAKABE TAKESHI
WATANABE HIROSHI
FUJIYAMA HAJIME
KUSAKABE TAKESHI
WATANABE HIROSHI
FUJIYAMA HAJIME
Application Number:
JP2015170771A
Publication Date:
March 09, 2017
Filing Date:
August 31, 2015
Export Citation:
Assignee:
SUMITOMO METAL MINING CO
International Classes:
C22B19/02; C22B1/00; C22B7/02
Domestic Patent References:
| JP2014162960A | 2014-09-08 | |||
| JPS5357182A | 1978-05-24 |
Attorney, Agent or Firm:
Masayuki Masabayashi
Hayashi Ichiyoshi
Hayashi Ichiyoshi