This column is based on “Polyvinyl Chloride Production from VCM (Suspension Polymerization) – Cost Analysis,” a report published by Intratec. It can be found at: www.intratec.us/analysis/polyvinyl-chloride-production-cost. Polyvinyl chloride (PVC) is the third most commonly produced synthetic polymer, after polyethylene and…
Any corrosion process in which microorganisms initiate, facilitate or accelerate corrosive chemical reactions is termed microbially influenced corrosion (MIC). MIC occurs when the chemical, microbiological and physical conditions allow the active growth of biofilms containing specific types of microbes on…
Catalyst-impregnated ceramic filter elements can achieve simultaneous removal of multiple air-pollutant species in a modular, space-saving layout The three most common pollutants found in the air we breathe are particulate matter (PM), nitrogen oxides (NOx) and sulfur oxides (SOx). These…
Careful attention to even the smallest details will help to prevent operational problems in filtration processes Filtration operations are widely used to achieve effective solid-liquid separations in the chemical process industries (CPI). Industrial filtration installations can involve a variety of…
To maximize the service life and reliability of rotary dryers for solid materials, adhere to this set of practices Rotary dryers have a well-deserved reputation for reliability, often providing decades of trouble-free operation in solids-handling processes. As with any type…
This column is based on “Acrylonitrile Butadiene Latex Production – Cost Analysis,” a report published by Intratec. It can be found at: www.intratec.us/analysis/nitrile-rubber-production-cost. Nitrile rubber (also known as NBR, acrylonitrile butadiene rubber, acrylonitrile butadiene latex, Buna-N) is a synthetic polymer…
Thermal oxidizers are pollution-control units designed to prevent process-generated volatile organic compounds (VOCs) from entering the environment. Different technologies offer tradeoffs among initial cost, operating expense, complexity, emissions, fuel efficiency and destruction efficiency. This one-page reference provides information on selecting…
This pictorial guide illustrates some of the common problems that can occur with polymeric and elastomeric materials that differ from those that occur with metallic seals and components Failures of polymer (plastic and elastomeric) parts and their consequences can be…
This overview compares various sealing technologies, and points out advantages and disadvantages of applying different mechanical-sealing designs for caustic fluids Caustic applications in chemical plants can play havoc on the mechanical seals of rotating equipment. These applications can be difficult…
This column is based on “Butyl Acrylate Production from Acrylic Acid and Butanol – Cost Analysis,” a report published by Intratec. It can be found at: www.intratec.us/analysis/butyl-acrylate-production-cost. Butyl acrylate, the butyl ester of acrylic acid, is among the most industrially…