TO PRODUCT
SULFONATOR
if γου process with H2S04, you need
t h e c o r r o s i o n r e s i s t a n c e of g l a s s plus t h e w o r k i n g s t r e n g t h of s t e e l For across-the-board resistance to corrosion by sul furic acid, glassed steel is the only completely suitable material of construction available today. Glassed steel is fully resistant to dilute solutions up to the boiling point and 0 t o concentrated solutions at temperatures u p t o 45O F. I t is equally inert in the critical range of 60-96% concentration of H-SO». It is not attacked by fuming sulfuric acid (oleum) and its corrosion resistance is not affected by aeration, velocity, impurities, or the use of mixed acid. No inhibitor is ever required. For these reasons, glassed steel equipment has virtually unlimited service life in processes using sul furic acid. Further, it eliminates the possibility of contamination or undesired catalysis which may be caused b y the presence of even small traces of metal in solution. 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 b u t also alkaline solutions up to a pH of 12
PFAUDLER
and 212°F. It is now possible to perform both acid reac tions and neutralizations in a single glassed steel vessel. To give it working strength, Pfaudler glass is fused t o steel in huge furnaces at temperatures of 15001700°F. This high-temperature firing locks the glass to the steel and makes it hard and tough. Pfaudler glassed steel pressure reactors, in capacities from 5 to 3500 gallons, are commonplace in chemical processing today. These units are equipped v/ith agita tion, are usually jacketed, and are supplemented by a complete line of standard glassed steel accessories. Custom-built vessels as large as 8300 gallons, for severe chemical service, have been constructed. Glassed steel columns and evaporators solve many serious corrosion problems. Whenever 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-S3, our new general catalog.
THE PFAUDLER CO., ROCHESTER 3, Ν. Υ.
Engineers and fabricators of corrosion resistant process equipment since 1884 Factories at: Rochester, Ν . Υ.; Elyria, O h i o ; Leven r Fife, Scotland; S c h w e t z i n g e n - B a d e n , G e r m a n y
