Method for wood treatment using oleothermia with recycled oils (Machine-translation by Google Translate, not legally binding)

The invention relates to a method for heat treatment and impregnation of wood or other woody materials with the use of recycled oil. The treatment method of oleothermia with recycled oil proposed uses recycled oil from agro-food industries, the oil is filtered to remove solid impurities and heated t...

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Bibliographische Detailangaben
Hauptverfasser: CASADO SANZ, Milagros, ACUNA RELLO, Luis
Format: Patent
Sprache:eng ; spa
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Zusammenfassung:The invention relates to a method for heat treatment and impregnation of wood or other woody materials with the use of recycled oil. The treatment method of oleothermia with recycled oil proposed uses recycled oil from agro-food industries, the oil is filtered to remove solid impurities and heated to a temperature higher than 150º c. The treatment is by immersing the wood in the recycled oil heated to the desired temperature maintaining said temperature a minimum time of 60 minutes, then the wood is removed and allowed to cool to hygroscopic equilibrium humidity at room temperature. The proposed method improves the dimensional stability of the wood and decreases its hygroscopicity, it achieves a more stable wood for outdoor use and that is less prone to the formation of fences and warping. It should be noted that it is a simple, ecological and lower cost method than traditional heat treatment methods and other methods of oht (oil heat treatment). (Machine-translation by Google Translate, not legally binding) La invención se refiere a un método para tratamiento térmico e impregnación de la madera u otros materiales leñosos con el uso de aceite reciclado. El método de tratamiento de oleotermia con aceite reciclado propuesto utiliza aceite reciclado procedente de industrias agroalimentarias, el aceite es filtrado para eliminar impurezas sólidas y calentado a temperatura superior a 150°C. El tratamiento es por inmersión de la madera en el aceite reciclado calentado a la temperatura deseada manteniendo dicha temperatura un tiempo mínimo de 60 minutos, posteriormente se saca la madera y se deja enfriar hasta humedad de equilibrio higroscópico a temperatura ambiente. El método propuesto mejora la estabilidad dimensional de la madera y disminuye su higroscopicidad, consigue una madera más estable para uso exterior y que sea menos propensa a la formación de fendas y alabeos. Cabe destacar que se trata de un método sencillo, ecológico y de menor coste que los métodos tradicionales por termotratamiento y otros métodos de OHT (Oil Heat Treatment).