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Title:
METHOD FOR PRODUCING LITHIUM HYDROXIDE ANHYDRIDE AND ROTARY KILN TO BE USED THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/084134
Kind Code:
A1
Abstract:
The present invention is capable of improving the production efficiency of lithium hydroxide anhydride in a method for producing lithium hydroxide anhydride from lithium hydroxide hydrate using a rotary kiln. Provided is a method for producing lithium hydroxide anhydride, characterized by comprising: a supplying step for supplying lithium hydroxide hydrate to an area between one end 12a of a furnace core tube 12 and a heating part 12c that is a part of the furnace core tube coated with a heating furnace 14; a lithium hydroxide-transporting step for transporting the thus supplied lithium hydroxide hydrate toward the other end 12b side of the furnace core tube 12; a drying gas-feeding step for, when the lithium hydroxide hydrate is supplied, feeding a drying gas at 100oC or higher to the area between one end 12a of the furnace core tube 12 and the heating part 12c; and a heating step for, during the lithium hydroxide-transporting step, heating and dehydrating the lithium hydroxide hydrate by the heating furnace 14 that is set to 230-450oC to thereby give lithium hydroxide anhydride.

Inventors:
YAMAMOTO Manabu (1-1-1 Shinoki Sanyouonoda-sh, Yamaguchi 47, 〒7560847, JP)
SASAKI Osamu (1-1-1 Shinoki Sanyouonoda-sh, Yamaguchi 47, 〒7560847, JP)
KIMURA Noriyasu (1-1-1 Shinoki Sanyouonoda-sh, Yamaguchi 47, 〒7560847, JP)
NISHIMURA Kenichi (978 Oono Itoigawa-shi Niigata, 71, 〒9410071, JP)
KOYANAGI Wataru (978 Oono Itoigawa-shi Niigata, 71, 〒9410071, JP)
KUWAHARA Toru (978 Oono Itoigawa-shi Niigata, 71, 〒9410071, JP)
Application Number:
JP2017/039280
Publication Date:
May 11, 2018
Filing Date:
October 31, 2017
Export Citation:
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Assignee:
BASF TODA BATTERY MATERIALS LLC (Shinagawa Grand Central Tower 6F, 2-16-4 Konan Minato-ku Tokyo, 75, 〒1080075, JP)
TANABE CORPORATION (978 Oono, Itoigawa-shi Niigata, 71, 〒9410071, JP)
International Classes:
C01D15/02; F27B7/36; F27D7/06; H01M4/36
Foreign References:
JP2006265023A2006-10-05
JP2015000826A2015-01-05
JP2006151707A2006-06-15
JP2000256010A2000-09-19
JP2006265023A2006-10-05
Attorney, Agent or Firm:
ETOH Toshiaki (Nihombashi Nichigin-dori Bldg. 6F, 6-7 Nihombashihongoku-cho 4-chome, Chuo-k, Tokyo 21, 〒1030021, JP)
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