Handle corrosive fluids effectively
Article Abstract:
Wilden Pump and Engineering Co.'s Accu-Flo pump allows Bold Technologies to automate the flow of hydrogen peroxide into tanks where wafers are cleaned. The air-operated, double diaphragm pump handles the required low flows and can withstand the corrosive nature of hydrogen peroxide. Automation of the dispensing function is made possible by the use of electrical impulses to control the pump, unlike conventional compressed-air pumps that use differential pressure. The exposed areas of the pump are made from Kynar polyvinyllidene fluoride (PVDF), which is resistant to corrosion caused by exposure to hydrogen peroxide.
Comment:
Uses Wilden Pump & Engineering's Accu-Flo pump to automate flow of hydrogen peroxide in wafer cleaning
Publication Name: Chemical Engineering
Subject: Engineering and manufacturing industries
ISSN: 0009-2460
Year: 1998
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Methane-to-methanol technology moves closer to reality
Article Abstract:
Catalytica Inc. of Mountain View, CA, has produced methanol from methane with 70% yield through direct oxidation using a platinum-complex catalyst. The conversion is significantly higher than the 43% yield previously announced by Catalytica using a mercury catalyst. Moreover, the reaction occurs at 500 psig and 220 degrees centigrade, thus doing away with the costly steps of steam reforming and high-pressure methanol synthesis. Roy Periana, the company's director of research, said commercialization of the process could be five years away.
Comment:
Produces methanol from methane with 70% yield through direct oxidation using a platinum-complex catalyst
Publication Name: Chemical Engineering
Subject: Engineering and manufacturing industries
ISSN: 0009-2460
Year: 1998
User Contributions:
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