Wood processing: acetylation process

Wood acetylation treatment process real-time control and optimization

Acetylation of wood is processed, dimensional stability, durability, resistance to ultraviolet ray and paint keeping ability be enhanced fast-growing wood.

The processing technology based on using acetic anhydride ((CH₃CO)₂O) as the reagent acetylation process.

The chemical structure of lumber of free hydroxyl can absorb and release moisture.Acetylation of wood internal free hydroxyl into acetyl groups.The process through the wood and acetic anhydride (from acetic acid (CH₃-cooh) group), the reaction to complete.

Visa K - PATENTS^®In situ online refractometer can be used to accurately measure the concentration of acetic acid in the acetic anhydride.This refractometer can also be used for distillation tower of recycling plant, in the distillation tower, the used chemicals will be recycled into the process.The refractometer through real-time process control and optimization to help decrease the cost of the operation of the distillation unit.

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