The invention discloses a method for recycling and reusing benzyl alcohol rectification by-products, comprising the following steps: adding benzyl alcohol rectification by-products containing acetal and dibenzyl ether, ethanol and a hydrogenation catalyst into an autoclave, introducing hydrogen and heating to 100 DEG C, reacting for 4-8 h, and separating an organic-phase crude product; carrying out crude distillation on the crude product under reduced pressure, and removing ethanol and most toluene in the crude product; boiling with water at normal pressure, and evaporating water to remove residual trace amount of toluene; and finally carrying out vacuum distillation to obtain the finished product benzyl alcohol. Through one-step chemical conversion, recycling and reusing of dibenzyl etherand acetal which are difficult to separate are realized. Meanwhile, the products after conversion are mainly benzyl alcohol and a small amount of toluene, which are easy to separate and purify; economic value of benzyl alcohol is high; and the market demand is large. Thus, the process is suitable for large-scale production and application. By changing wastes into valuable things, making good useof waste materials and saving resources, the method has great economic and environmental benefits.

R. C. Rastogi

Papers

Nickel boride reduction of symmetric and mixed anhydrides of carboxylic acids

Nickel Boride Reduction of Symmetric and Mixed Anhydrides of Carboxylic Acids.