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US 9,975,062 B2Granted
Nanofibrillar cellulose as a phase separation agent
AssigneeUpm-Kymmene Corporation
InventorsMarko Lauraeus, Antti Laukkanen
Life of this patent
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Abstract
Disclosed is the use of a separation agent including fibril cellulose for phase separation, as well as to a method for the separation of at least one liquid phase from at least one phase selected from a second liquid phase, solid phase and semi-solid phase, where the method includes the steps of incorporating a separation agent including fibril cellulose to a mixture where separation of the phases is desired, followed by formation of phases and removing the phases.
Claims7
A method for the separation of phases, said method comprising:
- incorporating a separation agent comprising nanofibrillar cellulose into a mixture;
- forming more than one phase from the mixture and separation agent, the more than one phase including a first liquid phase and at least one second phase, the at least one second phase including a second liquid phase immiscible in the first liquid phase, a solid phase, or a semisolid phase;
- removing the first liquid phase from the at least one second phase,
- wherein the separation agent comprises from 0.1 to 20 wt % of nanofibrillar cellulose in an aqueous dispersion, the separation agent forming a barrier or interphase comprising a gel between the first phase and the at least one second phase.
1 more element
Dependencies are inferred from the claim text.