Distillation: processes, separatory inventions 03/08

20080073200 - Novel enhanced systems, processes and methodologies for producing clean water and products thereby: Improved methods for carrier-gas humidification/dehumidification [HDH] or dewvaporization enable production of clean water, derived in part from models generated and tested with produced water from the oil and gas industries, which likewise address industrial waste water remediation and generally facilitate the time and cost efficient disposal of waste waters from... Agent: Greenberg Traurig LLP (la)

20080073201 - Acetonitrile recycling process: The present invention relates to improved processes to recover acetonitrile from a diluted aqueous low grade acetonitrile feedstock.... Agent: Nixon & Vanderhye, PC

20080053815 - Method for processing an etching mixture which is formed during the production of highly pure silicon: In a method for recovering acid from an aqueous etching mixture containing HF, HNO3, H2SiF6 and HNO2 which has been used for purifying polycrystalline silicon, the used etching mixture is distilled progressively so that approximately from 20 to 50 wt. % of the mixture is distilled off as dilute acid... Agent: Brooks Kushman P.C.