Highly reactive, dust-free and free-flowing lithium sulphide and method for the production thereof

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United States of America Patent

PATENT NO 11542162
APP PUB NO 20200165129A1
SERIAL NO

16481244

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Abstract

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The invention relates to a highly reactive, high-purity, free-flowing and dust-free lithium sulfide powder having an average particle size between 250 and 1,500 μm and BET surface areas between 1 and 100 m2/g. The invention, furthermore, relates to a process for its preparation, wherein in a first step, lithium hydroxide monohydrate is heated in a temperature-controlled unit to a reaction temperature between 150° C. and 450° C. in the absence of air, and an inert gas is passed over or through it, until the residual water of crystallization content of the formed lithium hydroxide is less than 5 wt. % and in a second step, the anhydrous lithium hydroxide formed in the first step is mixed, overflowed or traversed by a gaseous sulfur source from the group consisting of hydrogen sulfide, elemental sulfur, carbon disulfide, mercaptans or sulfur nitrides.

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Patent Owner(s)

Patent OwnerAddress
ALBEMARLE GERMANY GMBH65926 FRANKFURT AM MAIN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lang, Sebastian Goslar, DE 17 16
Müller, Marc-Christian Ober-Hilbersheim, DE 3 0
Nickel, Vera Haiger, DE 9 16
Pietzner, Sebastian Zeilsheim, DE 3 0
Plath, Armine Frankfurt am Main, DE 1 0
Vitze, Hannes Idstein, DE 7 2

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