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US 2015/0031930 A1Published application
Method for isolation of cymene
AssigneeHolmen AB
InventorsJörg Brücher, David Blomberg Saitton
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Abstract
The invention relates to a method of isolating cymene comprising the following steps: a) providing a solution comprising cymene and monoterpenes, b) adding sulphuric acid to the solution in a) such that the concentration of sulphuric acid in the solution is at least 0.5% (w/w), such as 1-25% (w/w), c) distilling the solution mixture from step b) such that a target chemical stream enriched in cymene is obtained and separated from a residual stream.
Claims28
-14. (canceled)
A method of isolating cymene comprising:
- a) providing a solution comprising cymene and monoterpenes,
- b) adding sulphuric acid to the solution in a) such that the concentration of sulphuric acid in the solution is at least 0.5% (w/w),
- c) distilling the solution mixture from b) such that a target chemical stream enriched in cymene is obtained and separated from a residual stream.
Dependencies are inferred from the claim text.