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US 4,047,892 AGranted
Liquid chromatographic analysis for styrene-butadiene monomers
AssigneePhillips Petroleum Company
InventorEdward N. Fuller
Life of this patent
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Abstract
An improved method for the separation of the individual components contained in a process stream consisting essentially of 1,3-butadiene, styrene and cyclohexane is provided which comprises passing a sample of the stream through a silica-filled column in a liquid chromatographic apparatus. The carrier is passed through a drying chamber prior to introducing the carrier onto the column.
Claims5
A process for the liquid chromatographic analysis of a mixture of styrene, 1,3-butadiene and cyclohexane which comprises:
- introducing a sample of said mixture into a chromatographic column having a partitioning material therein which selectively retards passage therethrough of the components of said mixture, drying a carrier fluid by passing same through a drying chamber and thereafter introducing the thus-dried carrier fluid into said column at a predetermined flow rate to carry said mixture through said column to effect separation of said mixture into said styrene, said 1,3-butadiene and said cyclohexane, and thereafter separately determining the quantity of styrene, 1,3-butadiene and cyclohexane.
Dependencies are inferred from the claim text.