Comparative Life Cycle Assessment of Different Production Processes for Waterborne Polyurethane Dispersions

Comparative Life Cycle Assessment

Synthesis and Characterization of Anionic Polyurethane Dispersants for Waterborne Paints

Anionic polyurethane dispersants APUDs were used as dispersing agents in formulation of waterborne paints. The APUDs were synthesized by three steps. In the first step, macromonomer diisocyanate having carboxylic acid was prepared by isophorone diisocyanate IPDI, dimethylol propionic acid DMPA in presence of acetone as solvent and dibutyltin dilaurate DBTDL as catalyst. Then, carboxylic polyure...

Investigation on life cycle assessment of lead and zinc production

Lead and zinc production is one of the main predisposing factors of excessive greenhouse gases emissions, air pollution and water consumption. In this paper, the environmental problems of lead and zinc production in Calcimin plant are expressed and life cycle assessment of this plant is assessed. The data regarding the amount of induced global warming and pollution, acidification, and depletion...

Life-Cycle Assessment of Environmental Effects on Rapeseed Production

In recent years, increasing the awareness on the environmental problems, especially global warming, has increase the concerns about the impact of emissions on the global climate. The current study was conducted to evaluate and analyze the environmental effects of rapeseed production in the form of life cycle using SimaPro software with the aim concentration on climate changes and impact of acid...

Use of the life-cycle assessment (LCA) toolbox for an environmental evaluation of production processes*

Green chemistry not only emphasizes the central production process of the “green” chemical, but it ultimately requires a life-cycle conceptual approach for each chemical product. A life-cycle conceptual approach comprises the consideration of all stages along the life cycle of a chemical (i.e., raw material extraction, pre-production, production, use, recycling, and disposal) as well as the con...