TECHNICAL. R E P O R T DICALITE DEPARTMENT • GREAT LAKES CARBON CORPORATION • 612 SO. FLOWER ST., LOS ANGELES 17, CALIFORNIA
Why Antibiotics Producers Filter with Dicalite Roger W. Hess
Dicalite Filteraids meet two major requirements in antibiotics production—(1) large volumes of fluid must be filtered, and (2) exceptional purity is required in the final product. Thus, they have long been used by many producers of penicillin, aureomycin, streptomycin and other drugs. The consistent uniformity in each of the many Dicalite diatomite and perlite filteraids is an important factor, since it provides known performance characteristics in these critical processes. Dicalite's new perlite filteraids are remarkably efficient in handling high
solids content fluids, and provide high resistance to cake cracking in rotary vacuum precoat filtration, extensively used in pharmaceutical processing. Because of their light weight, Dicalite perlite filteraids give up to 25% greater filtering capacity per pound, resulting in savings in filteraid usage of 20 to 30%. They are available in a complete range of grades. Dicalite technical service engineers will be happy to advise with you on the application of Dicalite filteraids to your individual needs in filtering any type of liquid.
Dicalite's "Man On The Spot" Working on filtration problems with customers' technicians in their laboratories is nothing new to Roger Hess, shown at left checking flowrate in a filtration test in a Merck laboratory, for Roger is a-veteran of more than 25 years in thefiltrationfield.Included were 12 years work with filter manufacturers, leading him to his present role of filteraid engineer. His interest in his work is indicated by the title of one of the papers he has contributed to chemical publications — "Filtration In My Blood!' Graduating from Brooklyn Polytechnic Institute with a degree in Chemical Engineering, Hess spent several years with chemical equipment manufacturers before getting into the specialized area offiltration.He counts 3 years laboratory work as being especially important in his present work. A member of the honorary fraternity, Phi Lambda Upsilon, he is active also in the American Chemical Society, the American Institute of Chemical Engineers, the Baltimore Chemical Club, and other technical societies in the paint, brewing, electroplating and chemical fields. TECHNICAL LITERATURE
on Dicalite Filteraids is available on request. Bulletin B-14 discusses the principles and operating practices of filteraid filtration, and its applications in many industries. Write for your copy to: At the Cherokee Plant of Merck & Co., Inc. at Danville, Penna., Dicalite is being used to aid thefiltrationof an antibiotic fermentation broth. © 1961 GREAT LAKES CARBON CORPORATION • LOS ANGELES. CALIF.
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Dicalite Department 612 So. Flower Street Los Angeles 17, California
