Abstract: A rotary union for supplying a heat exchange fluid to a rotating body includes a pair of hydrodynamic bushing bearings to retain the union housing within the desired alignment with the rotating body, a thrust bearing assembly secured to the rotating body, and a seal assembly positioned forwardly of the pair of bushing bearings. The hydrodynamic bushing bearings are located within the union and are lubricated by the flow of the heat exchange fluid within the union.

Abstract: Beta-amino propionitrile is hydrolyzed with potassium hydroxide to produce potassium beta alanate, which, upon acidification produces free beta alanine with some potassium sulfate precipitate. The beta alanine solution with residual potassium sulfate is concentrated under vacuum to a thick syrup, shocked with an excess of a selected alcohol to produce a solid mass of beta alanine with the remaining theoretical potassium sulfate. The solid product is converted to calcium beta alanate under anhydrous conditions for reaction with racemic pantoyl lactone to form pure calcium pantothenate and allowing the entrained potassium sulfate to settle out. Contrary to expectations, under these conditions there was no double displacement and the presence of potassium sulfate did not interfere with the reaction.