λ/erofil...
let's turn the microscope on
the completely new Filteraid for use in strongly a l k a l i n e liquors — The idea of using carbonaceous filteraids in proc esses involving caustics or fluorides is not new. But NEROFIL — a processed carbon-based filteraid — is completely new . . . and valuable because it over comes the difficulties often encountered with earlier carbon materials. (A) is a photomicrograph of a crushed carbona ceous material (quite similar to previous carbon filteraids). This, however, is merely the reactor feed from which NEROFIL (B) is made. Both photo micrographs are the same magnification. The marked differences are evident.
NEROFIL's success as a filteraid stems from two important features. First, of course, its physical and chemical stability... even boiling caustic has negligible effect. Second, the high filter cake poros ity and low cake density of N E R O F I L yield fast throughput of liquid and superior clarity of filtrate. This stability and filtration efficiency have led several different industries to adopt NEROFIL in their processing, with excellent results. Complete information on NEROFIL is available to you in a new bulletin, just issued . . . write for it.
Great Lakes Carbon
Corporation
Nerofil Department — 612 So. Flower St., Los Angeles 17, Calif. Dept. LTK — 3S3 No. Michigan Ave., Chicago, Ill. rot further information, circle number 97 A on Readers' Service Card, page 139 A
VOL. 49, NO. Τ
•
JANUARY 1957
97 A
