Process for the production of wood fiberboard
AssigneeUnilin BV
InventorsGeert COUDENYS, Veronique HOFLACK, Lieven VANGHELUWE
Life of this patent
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Abstract
The process for the production of wood fiberboard includes the step in which refined material from recycled wood fiberboards is wetted, heated and pressurized using steam; the step in which this material is kept under pressure and temperature for a certain amount of time, followed by the step of reducing the pressure of this material by at least 3 bar. After this pressure reduction, the material is transformed into recycled wood fibers, possibly with a fraction of wood fiber clumps and any other impurities. The recycled wood fibers are supplied as feedstock in a production line for producing wood fiberboard.
Claims21
-41. (canceled)
A process for the production of a wood fiberboard,
- wherein the process comprises the step in which refined material from recycled wood fiberboards is wetted, heated and pressurized using steam;
- wherein the process comprises the step in which this material is kept under pressure and temperature for a certain amount of time, followed by the step of reducing the pressure of this material by at least 3 bar;
- wherein, after this pressure reduction, the material is transformed into recycled wood fibers, possibly with a fraction of wood fiber clumps and any other impurities;
- wherein this process comprises the step of supplying the recycled wood fibers as feedstock in a production line for producing wood fiberboard.
Dependencies are inferred from the claim text.