Process for preserving wood chips during storage
AssigneeThe United States of America as represented by the Secretary of Agriculture
InventorEdward L. Springer
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Abstract
A process which limits the loss of wood substances, brightness and tall oil in wood chips during storage. The process involves treating wood chips with a dilute aqueous solution of sodium bisulfite and a phenol. This treatment effectively prevents chip pile heating and microbial growth and thus limits chip deterioration and brightness loss while preserving tall oil. The process is also effective with any other moist plant-derived raw material.
Claims2
A method for preserving wood substance, brightness and tall oil in stored wood chips comprising treating said chips with a biocidally effective amount of an aqueous solution containing 2.0 percent sodium bisulfite and:
- a. 0.35 percent resorcinol;
- or
- b. 0.30 percent p-nitrophenol.
A method for retarding deterioration in wheat, corn, straw, sugar cane bagasse and wood, comprising treating the material with an aqueous solution containing 2.0 percent sodium bisulfite and:
- a. 0.35 percent resorcinol;
- or
- b. 0.30 percent p-nitrophenol.
Dependencies are inferred from the claim text.