Method for separating fibers
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United States of America
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Dec 28, 2021
Grant Date -
Jun 18, 2020
app pub date -
Dec 15, 2017
filing date -
Dec 15, 2017
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Abstract
A method for separating fibers using a container, a vacuum pump which is connected to the container volume via a vacuum valve, and a ventilation line with a cross-sectional opening and a valve. The valve can be switched between a closed and open state in a time domain of 19-41 ms and from the open state into the closed state in a time domain of 20 to 45 ms. The method has the steps of filling the container with water and fiber composite, closing the container, mixing the water and the fiber composite using mechanical energy, by stirring, generating kinetic energy in the fiber composite by lowering the container internal pressure to a value between −700 to −950 hPa, and equalizing the pressure in the container to generate cavitation in the fiber composite. The pressure equalization taking place within at least onetime domain of 0.001-1 s.
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