Aero Research INSTRUMENT COMPANY, INC.
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THAT WILL WITHSTAND 2000°F AND UP TO 5 0 / 0 0 0 PSI l °*G UK NEW, SIMPLE CONSTRUCTION Made from metal sheath over ceramic insulated thermocouple wire. Metal sheath can be bent and weld- ments can be performed without loss of insulation. Write ^L 3.8 for complete thermocouples. for Nt 4 for AEROPAK Ceramic Bulletins Τ Insulated Wire. PHONE Τ Α Υ L O R 9-6400 INSTRUMENT COMPANY, INC. 315 N O R T H A B E R D E E N · C H I C A G O 7. ILL. Circle No. 82 on Readers' Service Card now available with automatic controls . . "Packaged" NEPTUNE CHEMICAL FEED UNIT a complete system for precisely regulating additives to continuous flow processes The NEPTUNE proportioning system is precision engineered for accuracy, and a longer operating life. It offers several improved features—including auto- mafic controls—that are not found on many more expensive units. OTHER FEATURES INCLUDE: • Corrosion resistant, stainless steel piston valves and ball checks; heavy gauge construction throughout. • Easy control of feed—simply adjust calibrated scale on the eccentric. • Constant solution strength is assured as agitator prevents precipitates from settling. • " Y " type strainer protects pump from harmful solids. Tank, agitator and pump are combined in one smooth operating system that precisely proportions anything from treating chemicals, such as calgon, to petroleum distillates. FOR ADDITIONAL DETAILS — WRITE, WIRE OR CALL: NEPTUNE PUMP MANUFACTURING CO. 4912 NORTH 6TH STREET, PHILADELPHIA 20, PA. DAvenport 9-2882 The most successful of several reaction vessels they tried was a modified Erlenmeyer flask with an internal cooling coil. This was placed so that the light from the solar furnace mirror entered the vessel normal to the conical top and came to a focus inside the space enclosed by the cooling coil. Ice water pumped through the coil was sufficient to keep the tempera- ture in the reaction vessel as low as 10° C. By plotting reaction time against oxygen evolved, they were able to demonstrate a zero-order initial re- action rate. In other words, even with the light concentration possible Circle No. 79 on Readers' Service Card 4 2 A INDUSTRIAL AND ENGINEERING CHEMISTRY SRI's solar furnace in the solar furnace all of the photo- chemically active light is absorbed by the eerie ions. The dual function of the solar furnace can be simply expressed. If the concentrated rays from the sun fall on a black body, a high temperature is produced; if they fall on an object or a reaction system which absorbs largely in the visible and ultraviolet parts of the spectrum, little increase in temperature results. Marcus and Wohlers suggest that this aspect of the solar furnace should have some worthwhile appli- cations. Industrial photochemical reactions, for example, need a cool THERMOCOUPLES Aero Research I/EC REPORTS
Transcript of Aero Research INSTRUMENT COMPANY, INC.
THAT WILL WITHSTAND
2000°F AND UP TO 50 /000 PSI l°*G UK
NEW, SIMPLE CONSTRUCTION
M a d e from metal sheath over ceramic insulated thermocouple wire.
Meta l sheath can be bent and we ld-ments can be per formed without loss of insulation.
Wri te ^L 3 .8 for comp le te t h e r m o c o u p l e s . f o r N t 4 for A E R O P A K Ceramic
Bu l le t ins Τ Insulated W i re .
P H O N E Τ Α Υ L O R 9 - 6 4 0 0
I N S T R U M E N T C O M P A N Y , I N C . 3 1 5 N O R T H A B E R D E E N · C H I C A G O 7 . I L L .
Circle No. 82 on Readers' Service Card
now available with automatic controls . .
"Packaged"
NEPTUNE CHEMICAL FEED UNIT a complete system for precisely regulating additives to continuous flow processes
The NEPTUNE proportioning system is precision engineered for accuracy, and a longer operating life. It offers several improved features—including auto-mafic controls—that are not found on many more expensive units.
O T H E R FEATURES I N C L U D E :
• Corrosion resistant, stainless steel piston valves and ball checks; heavy gauge construction throughout.
• Easy control of feed—simply adjust calibrated scale on the eccentric.
• Constant solution strength is assured as agitator prevents precipitates from settling.
• " Y " type strainer protects pump from harmful solids.
Tank, agitator and pump are combined in one smooth operating system that precisely proportions anything from treating chemicals, such as calgon, to petroleum distillates.
FOR A D D I T I O N A L D E T A I L S — W R I T E , W I R E OR CALL:
NEPTUNE PUMP MANUFACTURING CO. 4 9 1 2 N O R T H 6TH STREET, PHILADELPHIA 2 0 , PA . DAvenpor t 9 - 2 8 8 2
The most successful of several reaction vessels they tried was a modified Erlenmeyer flask with an internal cooling coil. This was placed so that the light from the solar furnace mirror entered the vessel normal to the conical top and came to a focus inside the space enclosed by the cooling coil. Ice water pumped through the coil was sufficient to keep the temperature in the reaction vessel as low as 10° C.
By plotting reaction time against oxygen evolved, they were able to demonstrate a zero-order initial reaction rate. In other words, even with the light concentration possible
Circle No. 79 on Readers' Service Card
4 2 A INDUSTRIAL A N D ENGINEERING CHEMISTRY
SRI's solar furnace
in the solar furnace all of the photo-chemically active light is absorbed by the eerie ions.
The dual function of the solar furnace can be simply expressed. If the concentrated rays from the sun fall on a black body, a high temperature is produced; if they fall on an object or a reaction system which absorbs largely in the visible and ultraviolet parts of the spectrum, little increase in temperature results.
Marcus and Wohlers suggest that this aspect of the solar furnace should have some worthwhile applications. Industrial photochemical reactions, for example, need a cool
THERMOCOUPLES
Aero Research
I/EC REPORTS
