Abstract: A process for recovering an acid chloride from a mixture containing the same, consisting of distilling the acid chloride from the mixture in the presence of an effective quantity of a distillation improvement additive, such as an organo polysiloxane or a mineral oil, which remains substantially liquid under the conditions of distillation.

Abstract: A kitchen cabinet is disclosed which includes a pivot support for supporting a plurality of kitchen cabinet shelves so that the shelves may pivot about a horizontal axis outwardly and downwardly toward the user to an access position for gaining access to the shelves. The shelves are returned to the storage position by pivoting the shelves back up into the storage position. A pivotable and foldable door having upper and lower panels is pivotably supported from the ceiling. The door is actuated by means of mechanical linkages interconnecting the shelving and the door. As the shelving is pivoted from the storage position into the access position, the door, which covers the front side of the shelving, is pivoted upwardly and away from the shelving to permit access thereto. The lower section of the door includes a linkage for folding the lower panel up toward the underside of the upper panel.

Abstract: A wafer-type swing check valve having a body flange with a counter-bore into which an easily removable lapped disc support is located. The disc is hinged to the disc support and positioned to seat in a counterbored opening in the disc support to prevent reverse flow. The disc and its support are readily removable as a unit from the valve body. A removable seat may be provided in the disc support to simplify seat relapping.

Abstract: The invention is an improved method for regenerating liquid streams which contain sulfur dioxide. The method comprises providing a body of liquid which contains sulfur dioxide having a free space above the surface; forming a mixture of gas bubbles in the liquid by admixing a sufficient amount of gas containing hydrogen sulfide with the liquid to react with the liquid to form sulfur and to provide a sufficient amount of gas bubbles to separate sulfur formed from the body of the liquid by flotation. The method is particularly useful for regenerating aqueous absorbents in cyclic processes for removing sulfur dioxide from gas streams.