TAIL G A S O R RAFFINATE
PRODUCT
RICH SOLVENT
STRIPPER OR DESORBER cMiXÉR
LEAN
SOLVENT
PITTSBURGH G R A N U L A R C A R B O N BEDS
Improve Solvent Extraction and Aibsorption Efficiency with PITTSBURGH ACTIVATED CARBON Does your process utilize acids, alkalies, amines, glycols or other costly solvents which must be recirculated for repeated use? If so. you can maintain higher solvent selectivity and efficiency, and eliminate sewering a side stream by circulating the solvent through a bed of PITTSBURGH Granular Activated Carbon. In butadiene manufacture, for example, P I T T S BURGH Activated Carbon is used to reduce t h e accumulation of organic contaminants in a recirculating stream of cuprous ammonium acetate. In the same manner, recirculating streams of amines used in gas purification are kept free of contamination with PITTSBURGH Granular Carbon. Often, it is only necessary to carbon treat a portion of the solvent stream to remove accumulated organic contaminants. Use of PITTSBURGH Activated Carbon in this manner results in:
Our technical representatives "will be glad to evaluate and advise whether or not such improvements are possible i n your system. · Write today for more information . . . or a visit from a P I T T S BURGH technical representative.
S e n d for B o o k l e t Describes t y p e s a n d v a r i o u s
a p p l i c a t i o n s of
PITTSBURGH
A c t i v a t e d C a r b o n s in b o t h l i q u i d a n d v a p o r p h a s e a d s o r p tion. For your f r e e c o p y , w r i t e t o D e p t . D .
1 . increased selectivity a n d c a p a c i t y o f t h e s o l v e n t . 2. R e d u c e d s o l v e n t m a k e - u p or cost of r e c l a i m i n g . 3 . Elirnincstiori of f o a m i n g tillation towers.
in evaporators
or d i s -
4 . Reduction o f corrosion a n d m a i n t e n a n c e . 5 . I m p r o v e m e n t o f q u a l i t y o f e n d product.
COAL C H E M I C A L S ·
P R O T E C T ! VE C O A T I NGS · P L A S T I C I Z E R S · A C T I V A T E D C A R B O N · C O K E ·
C E M E N T · PIG IRON
DEC.
8,
· FERROMANGANESE
1958 C&EN
59
