CASE
HISTORY)
In t h e p r o c e s s o r ' s o w n w o r d s .. . "More than 750 tons of hydroforming catalyst were processed in the first six months. This included catalyst of widely varying quality «. . . Increased value of the recovered catalyst is more than rive times the original cost of the equipment. In addition, continued use of the equipment will reduce hydroforming operating costs considerably by reductions in fresh catalyst purchases . . . The specinc gravity separators are probably the most important items of equipment in the plant... Utilization of the equipment for separation of other types o / csttalyst used at (name of plant J is under consideration." In b o t h p a r t i c l e a n d b u l k form, t h e %-inch catalyst pellet, described a b o v e , i s n o t unlike m a n y o t h e r t y p e s of d r y c h e m i c a l a n d i n d u s t r i a l m a terials. A n d , although this particular a p p l i c a t i o n of S u t t o n e q u i p m e n t is s p e c t a c u l a r , it r e p r e s e n t s o n l y o n e of m o r e t h a n a h u n d r e d different t y p e s of c h e m i c a l a n d i n d u s t r i a l p r o d u c t s being successfully separated, salvaged, c l e a n e d , or classified t h r o u g h use of the famous sixty-seven year-old SS&S P r o c e s s — "the separation of dry materials by effecting differences in spécifie gravity through air-flotation.'' C o n s i d e r y o u r own p r o c e s s i n g p r o b lems carefully. F r o m fourteen basic models, incorporating 64 different t y p e s and sizes of Specinc G r a v i t y Separators and Air-Float Stoners, Sutton m a y b e able t o provide an i m m e d i a t e a n d profitable s o l u t i o n . M a y w e s e n d you a r e p r i n t of t h e complete "catalyst story"? Or, better still, d r o p u s a line d e s c r i b i n g your particular separating problem.
SUTTON, STEELE & STEELE, INC 1031
SOUTH
HASKELL ·
DALLAS, TEXAS
Moiling your inquiry o n company letterhead directly to Dept. CE (est the above address) will greatly facilitate its prompt handling.
3520
Controlling Sludge Two types of d e s l u d g i n g controls for soiids-contact unit control d e n s e sludge z o n e to minimize c a r r y o v e r W a t e r Conditioning has GRAVER signed t w o different t y p e s of
dedes l u d g i n g controls that are claimed to c o n t r o l c o m p a n y ' s solids-contact u n i t to p r o d u c e a m i n i m u m of c a r r y o v e r . O n e unit, a flow-proportioned control, is i n i t i a t e d b y a l o w m e t e r w h i c h sets in successive operation first t h e backflush a n d then t h e blowdown v a î v e . E a c h p r e d e t e r m i n e d v o l u m e of w a t e r passing through t h e l o w m e t e r delivers an electric impulse t o a c o u n t e r . W h e n t h e d e s i r e d n u m b e r of c o n t a c t s h a s b e e n m a d e t h e c o u n t e r starts the backflush t i m e r .
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Does A Six-Week 500% Return On Equipment Cost Stir Your imagination?
Diaphragm 1 Motor Valves
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control
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q u i c k l y a n d easily c h a n g e t h e dial settings of c o u n t e r a n d t i m e r s t o m e e t w i d e r a n g e s of w a t e r c o m p o s i t i o n a n d c h e m i c a l d o s a g e . T h e y c a n also be modified for u s e w i t h o t h e r t y p e s of water and waste treatment equipment. El
Slu 3, a n d 5 hp., the new line is said t o b e com pletely automatic. Capacities of t h e five models are based on 8 0 ° F . enter ing air a t 60 p.s.i. Ε8 • Finned
heat
transfer
surface,
by
Griscom-Russell, can b e used in con vection heaters with inlet gas tempera ture as high as 2600° F . , heating liquids within t h e tubes t o tempera tures u p to 1500° F . T h e fin h a s a copper interior for high heat conduc tivity, with austenitic stainless cladding for resistance to oxidation. Ε9 • Magnetic stirrer a n d h o t p l a t e , by
Will, utilizes a pulley a n d belt drive to rotate the permanent Alnico m a g n e t . The 750-watt fast-action heater i s a ring-type unit completely enclosed. Heat is diffused evenly over the t o p from room t o 700° F . E 10 • Running t i m e m e t e r , b y H a y d o n Mfg., indicates hours-of-operation up
to 10,000 h r . on a dial-type face. U n i t was previously available just for mili tary operations and is n o w available for operation on 115-volt, 60-cycle, a.c. Ε 11
L· Antrtmotir bui-et. by Meyer Scien tific, is supplied with a squeezable res ervoir bottle for filling with automatic finding of zero point. Burets are sup plied with 0.1 graduated intervals. Ten-ml. burets are supplied with 5 0 0 ml. bottles a n d 25-ml. burets are sup plied with lOOO-ml. bottles. Ε 12 ί Vibrating
reed
electrometer,
by
Applied Physics, can determine C 1 4 , H 3 , a n d S 8 5 . F o r u s e with t h e vibrat ing reed electrometer, Argonne N a tional L a b . has developed a p r o c e d u r e for converting samples directly to a gas. Company says procedure elimi nates the need for u s e of a precipitate which is often inaccurate, time con suming, a n d very tedious to p r e p a r e . Electrometer detects as little as 10~ 1 7 amperes with a precision of 1%. Zero drift is less than 0.2 mv. in 24 hours and less than .02 mv. per hour. Ε13 • Scrubber, by American Agile, of polyethylene offers chemical resistance at temperatures up to 170° F . M o d e l measures four feet in diameter, is five feet high, with a gas flow of 2 5 0 0 c.f.m. at V/2 in p.s.i. I t will b e used in contact with hydrofluoric acid a n d fluorides. · Ε 14 • Geiger counters, by Universal Atomics, features a complete packaged plug-in transitor power supply t h a t will give o n e of the instruments a 1000hour life o n two 1.5-volt flashlight batteries. This means that on a 2 4 hour continuous use basis, it will a p proximate shelf life in a flashlight battery. Replacement cost will b e 3 0 cents. Ε15 • V o l t m e t e r , b y Technology Instru ment, reads a.c. voltage over t h e frequency r a n g e from 15 c.p.s. to 100 Mc on eight full scale ranges of 0.1 volt to 3 0 0 volts; nine d.c. voltage scales from 0.1 volt to 1000 volts; resistance o n a single scale calibrated from 0.2 to 500 ohms with nine multi pliers from XO.l (0.02- t o 50-ohrn scale) up to X10 M e g . ( 2 - to 5 0 0 megohm s c a l e ) ; and nine directcurrent, full-scale ranges from 0.001 microamperes t o 100 ma. Accuracy on a.c. voltage is ±3% of full scale for 1.0 volt a n d higher ranges, and ±:59i> of full scale for 0.3-volt a n d 0.1-volt ranges. Accuracy on d.c. voltages is" ± 2 % of full scale for 1.0 volt a n d higher ranges and ± 3 % for 0 . 3 - a n d 0.1-volt ranges. Ε 16 (Continued on page 3538)
CHEMICAL
AND
ENGINEERING
NEWS
iPWfilPMËfiiBMMwjl (See also Used Equipment For Sale or W a n t e d , Page 3 5 4 7 )
TURBINE AGITATORS
FOR SALE—SPARKLER FILTER
TÀJN^NETER
Model 18-S-12^Horizontdl Plate—Mild Steel
and riuïrÎLLcitd ALL SIZES INI STOCK
CLEVELAND MIXER COMPANY O.BOX 197, BEDFORD, O.
I
CONTENTS A N Y DISTANCE A W A Y
Steam Jacket, Pump and Motor. Brand N e w —Still in Orisinal Crate. Priced to move.
VicaCctut
Packard Paint & Varnish Company 99 Potter Street Cambridge 4 2 , Massachusetts
INSTRUMENT CO. *
483 GETTY AVENUE · PATERSON, N.J.
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