Distillation: processes, separatory inventions 10/06

Recently published patent applications awaiting approval from the USPTO. Recent week's RSS XML file available below.
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10/26/2006 > patent applications in patent subcategories.

20060237299 - Method for recovering solvents: A method for recovering a solvent from its mixture containing oligomers extracted from grafted polyolefins is disclosed. The method comprises distilling the solvent from the mixture in the presence of a naphthalene compound. The method of the invention significantly increases the solvent recovering yield without causing the vessel fouling....

10/19/2006 > patent applications in patent subcategories.
10/12/2006 > patent applications in patent subcategories.
10/05/2006 > 1 patent applications in 1 patent subcategories.

20060219545 - Method for the purification of dimethylacetamide (dmac): The invention relates to a process for distillatively purifying crude dimethylacetamide (crude DMAc) comprising DMAc, low boilers and high boilers 5 by removing the low boilers and the high boilers to obtain pure DMAc in one of the column configurations listed hereinbelow: (I) a main column (MC) with sidestream column...

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