Definition A continuous process is a mode of industrial operation in which raw materials are continuously fed into a system while products are continuously removed, with the process conditions maintained at a relatively steady state over time. Unlike batch processing,…
Definition Process design refers to the systematic development and engineering of chemical processes based on technical requirements, patent information, and experimental data. It involves transforming laboratory-scale or patent-based technologies into fully engineered process systems suitable for industrial production. In chemical…
Definition Green technology refers to a set of engineering principles and industrial technologies aimed at reducing environmental impact while improving the efficiency of chemical processes. In chemical engineering, it is not a single technology, but a process design philosophy that…
PLA/PBAT Commercialization: The Race to Lower Production Costs With the implementation of the EU Carbon Border Adjustment Mechanism (CBAM) and China’s dual-carbon strategy, conventional petrochemical production routes are facing increasing pressure. As PLA and PBAT move from laboratory development to…
Definition Condensation polymerization, also known as polycondensation, is a polymerization process in which two or more monomers containing two or more reactive functional groups combine to form polymer chains while simultaneously releasing small molecules such as water, hydrogen chloride, methanol,…
Definition Solution polymerization is a polymer manufacturing process in which the monomer is dissolved in a suitable solvent before polymerization takes place. The reaction is initiated by heat or chemical initiators, with the solvent serving as the reaction medium to…
Definition Bulk polymerization, also known as mass polymerization, is a polymer production process in which the monomer polymerizes without the addition of solvents or dispersion media. Under the influence of heat, light, radiation, or chemical initiators, the monomer undergoes polymerization…
Definition Green chemistry, also known as environmentally benign chemistry, is the design of chemical products and processes that reduce or eliminate the use and generation of hazardous substances throughout the entire chemical lifecycle. Its objective is to maximize resource utilization…
Definition Suspension polymerization, also known as bead polymerization, is a polymer manufacturing process in which water-insoluble monomers are mechanically dispersed as droplets in a continuous medium, typically water, with the aid of dispersing agents. Polymerization occurs within these suspended droplets,…
Definition Emulsion polymerization is a polymer manufacturing process in which water-insoluble monomers are dispersed in water with the aid of surfactants (emulsifiers) and polymerized under mechanical agitation. Polymerization occurs within finely dispersed droplets or micelles, producing a stable polymer latex.…