Stable concentrated rare earth carboxylate liquids

Details Stable concentrated rare earth carboxylate liquids Stable concentrated rare earth carboxylate liquids

C - Chemistry, Metallurgy

07

F

C07F 5/00 (2006.01) B01J 31/00 (2006.01) B01J 31/04 (2006.01) C08F 4/52 (2006.01)

Patent

CA 2328890

Stable Rare Earth carboxylate liquids having high concentrations of Rare Earths and suitable for use in forming active Ziegler Natta catalysts, are prepared with stabilizing agents such as water and/or acid. The liquids comprise from about 4.5 % to about 20 % Rare Earth element(s). A novel process for making is disclosed.

La présente invention concerne des liquides de carboxylates de terres rares qui présentent des concentrations élevées de terres rares, qui conviennent pour la formation de catalyseurs Ziegler Natta actifs et qui sont préparés avec des agents de stabilisation tel que de l'eau et/ou de l'acide. Ces liquides renferment environ 4,5 % à environ 20 % d'éléments(s) de terres rares. L'invention concerne également un nouveau procédé de fabrication de ces liquides.

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