- Powdery solid rare earth carboxylates with improved solubility in aliphatic solvents which are highly active catalysts in Ziegler-Natta systems

摘要

The rare-earth carboxylates in solid form are prepared or treated with a solubilizing agent to improve solid solubility in aliphatic solvents. Other processes are also described, such as the treatment of aliphatic solvents to improve the solubility of solid rare-earth carboxylates in aliphatic solvents. Solubilizers identified for use include, but are not limited to, carboxylic acids, multiple acids, glycols, alcohols, and mixtures thereof. These processes and treatments are particularly useful for rare earths bentateite, rare earth neodecanoate, rare earth octanoate, rare earth 2-ethylhexanoate and rare earth naphthenate compositions.