Process for the production of lithium...

C - Chemistry – Metallurgy – 07 – F

Patent

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260/502.8

C07F 9/50 (2006.01)

Patent

CA 2011800

There is provided an improved industrial process for the preparation of high-purity lithium diphenylphosphinobenzene-m-monosulfonate. The preparation comprises reacting a sodium, potassium or calcium salt of diphenylphosphinobenzene-m-monosulfonic acid with lithium sulfate in an organic solvent.

Méthode industrielle améliorée pour la préparation de diphénylphosphinobenzène- m-monosulfonate de lithium, très pur. La préparation consiste à faire réagir un sel de sodium, de potassium ou de calcium de l'acide diphénylphosphinobenzène-m-monosulfonique avec le sulfate de lithium dans un solvant organique.

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