FIELD: process engineering.
SUBSTANCE: invention relates to treatment of vegetable lignocelluloses raw material to produce plate construction materials to be used in construction and furniture production. Vegetable lignocelluloses raw material with high content of lignin and hemicelluloses is treated for 15 s - 10 min by water steam at not over 1 MPa and 150-250°C. Treatment by water steam is instantly terminated. Said vegetable lignocelluloses raw material thus treated is mixed with untreated fibrous vegetable lignocelluloses raw material. Content of vegetable lignocelluloses raw material treated by water steam in produced mix makes 2-60 wt %. Produced mix is formed into mats. Water is extracted from said mats. Vegetable lignocelluloses raw material treated by water steam can be dried to moisture content of 5-10%. Resultant matter is mixed with untreated vegetable lignocelluloses raw material. Mats are produced from obtained mix and subjected to hot pressing. To produced solid plate material.
EFFECT: lower production costs.
5 cl, 3 ex
