Distillation: processes, separatory inventions 11/07

20070272539 - Point-of-use water purification method and apparatus: A compact, energy efficient, continuous-flow point of use distillation system utilizes stacked, vertically-arranged components to provide a compact and energy efficient distillation process and a device which is quick and easy to service and maintain. A housing contains a double-walled boiler vessel to which water is supplied from an external... Agent: Jones, Tullar & Cooper, P.C.

20070272540 - Method for separating trioxane from a trioxane/formaldehyde/water mixture by means of pressure change rectification: A process for removing trioxane from a use stream I of formaldehyde, trioxane and water, by a) providing a use stream I which comprises formaldehyde as the main component and trioxane and water as the secondary components, b) mixing the use stream I with a recycle stream VII which comprises... Agent: Connolly Bove Lodge & Hutz, LLP

20070256920 - Separation and purification apparatus and separation and purification method of unsaturated hydrocarbons: For example, a separation and purification apparatus having an extractive distillation tower 4 for separating and purifying butadiene, impurity concentration sensors 32, 34 for detecting the concentrations of specific impurities other than butadiene, a target material concentration sensor for detecting the concentration of butadiene in the extractive distillation tower, and... Agent: Birch Stewart Kolasch & Birch

20070256921 - Process for producing (meth) acrylic acids and process for distilling the same: In the stopping and starting operations of a distillation column used for producing (meth)acrylic acids according to the present invention, upon stopping the operation of the distillation column, the heating of a reboiler attached thereto is interrupted and then the reboiler is rapidly cooled; and/or upon starting the operation of... Agent: Nixon & Vanderhye, PC