Green chemistry and green chemical engineering refer to the application of impact minimization principles to chemicals processes. There are increasing demands for chemical process that are inherently safer, environmentally sound, economical, and flexible enough to withstand market changes. Engineers of Approved Chemicals processes redesign current industrial and laboratory methods in order to adhere to the principles of green chemistry, including:

Waste minimization
Reduction or elimination of hazardous or toxic solvents and compounds;
The use of renewable, recyclable, or recycled materials and feedstocks;
Increase in energy efficiency of the production process;
Reduction of total material needs through increased use of catalysis; and
Design of products that are not environmentally persistent, and instead biodegrade

   into innocouos compounds