Process for the extraction of a liquid phase from pulp-like materials.

摘要

1. A method of extraction of a liquid phase contained in a solid matter reduced to particles similar to a pulp, in accordance with which this matter is divided into at least 20 layers (3) separated by separator elements (2) and the whole is subjected to one pressure, characterized in that the thickness of each layer (3) lies between 0.4 and 1.5 cm ; the minimum value of the pressure is 2.0 MPa ; the time of keeping under pressure lies between 4 minutes and 2 hours ; and the separator elements (2) are woven fabric.