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To process with CHLOROSULFONIC ACID, you need
t h e corrosion resistance of glass plus t h e w o r k i n g strength of steel Pfaudler glassed steel is not attacked by chlorosulfonic acid at any temperature at which this highly corrosive material is used. For this reason, glassed steel permits full-scale operation of many processes which otherwise might never move out of the laboratory. The fatty alcohol Bulfonation shown above, for example, is accomplished much more efficiently with chlorosul fonic than with other acids which might have been used. Without glassed steel equipment, it would not have been feasible to use this more efficient process. Pfaudler glassed steel is resistant to all acids except hydrofluoric, even at elevated temperatures and pres sures. With a new Pfaudler glass, it is possible to handle not only acids but also alkaline solutions up to a pH of 12 and 212°F. Now, it is possible to perform both acid reactions and neutralizations in glassed steel vessels, as illustrated in the flow diagram above. To give it working strength, Pfaudler glass is fused
Ρ FAUDLER
to steel in huge furnaces at temperatures of 1500 to 1700°F. This high-temperaturefiringlocks the glass to the steel and makes it hard and tough. Pfaudler glassed steel reactors, in capacities from 5 to 3500 gallons and for internal pressures as high as 200 p.s.i., are commonplace in chemical processing today. These units are equipped with agitation, are usually jacketed, and are supplemented by a complete line of glassed steel pipe, fittings, and valves. Custombuilt vessels as large as 8300 gallons, for severe chem ical service, have been constructed. Glassed steel columns and evaporators solve many serious corrosion problems. Whpnever you have an equipment problem requir ing corrosion resistance, durability, and versatility, as well as the economy which these features provide, look to Pfaudler glassed steel for the solution. Write for Bulletin 894-C-3our new general catalog.
THE PFAUDLER CO., ROCHESTER
3, N. Y.
Engineers and fabricators of corrosion resistant process equipment since 1884 factories of: Rochester, Ν. Υ.; Elyrio, Ohio; Leven, Fife, Scotland; Schwetxlngen-Badon, Germany
