Tetraamido Macrocyclic Ligand Catalytic Oxidant Activators in the Pulp and Paper Industry

摘要

One-time-use small molecule catalytic activation of H_2O_2 promises valuable benefits for the pulp and paper (P&P) industry. Tetraamido macrocyclic ligand (TAML) catalysts activate H_2O_2 to rapidly bleach wood pulp at high selectivity from room temperature to 90 °C, providing a new totally chlorine free (TCF) approach. In addition, TAML-activated peroxide bleaches "color" in ClO_2 bleach plant effluents using low peroxide and minute catalyst concentrations in minutes at room temperature, giving 50 to 90% color reduction depending on the effluent stream. Here we summarize potential TAML/peroxide applications that promise to improve capital and operating costs, product quality, environmental performance, and energy efficiency. TAML-activated peroxide is applicable in diverse fields of technology among which the P&P field is but one.