Distillation: processes, separatory inventions 12/08

20080314728 - Process and system for the purification of trichlorosilane and silicon tetrachloride: The invention concerns a process (and a corresponding plant) for the purification of trichlorosilane and/or silicon tetrachloride comprising the following steps of treating technical grade trichlorosilane and/or technical grade silicon tetrachloride: complexation of the boron impurities (trichloride BCI3) and other metallic impurities by addition of diphenylthiocarbazone and/or triphenylchloromethane, with the... Agent: Senniger Powers LLP

20080314729 - Core de-entrainment device for vessels with tangential inlets: A distillation tower for use in a petrochemical or petroleum operation effects liquid and vapor separation by using centrifugal force applied to the feed introduced into a ring from a tangential inlet. The feed is separated into a liquid component that flows into the bottoms section of the tower and... Agent: Exxonmobil Research & Engineering Company

20080308403 - Method and apparatus for vacuum or pressure distillation: A method of separating salts from a feedwater stream includes the steps of (a) circulating a heat exchange media fluid serially between a holding tank, a condenser and an evaporator; (b) evaporating at least about 20% of the feedwater stream by thermal contact with the heat exchange media fluid in... Agent: Sheldon Mak Rose & Anderson PC

20080302650 - Process to recover low grade heat from a fractionation system: This invention relates to methods and apparatus for the energy efficient separation of ethane and propane from any hydrocarbon feed, i.e., from natural gas, natural gas liquids, liquid natural gas, or from gases from refinery or petroleum plants.... Agent: Fulbright & Jaworski, LLP