I/EC
Presents the latest EDITORIAL
INFORMATION
on
Chemicals & Materials PROCESS EQUIPMENT Instruments
New Packless Stirred Autoclave. . . • Higher speed
rotary
mixing • No
leakage
• Continuous
operation
f \ UNIQUE NEW design in rotary stirred autoclaves offers major operational advantages to the high pressure researcher. In this newtype pressure vessel, high speed rotary agitation is effected by the rotation of external magnets which actuate internal magnets fastened to the agitator shaft. There is no stuffing box, no packing, and the agitator shaft is completely sealed in. This packless design makes possible many important, new operational and maintenance advantages: . . . Higher speed mixing because packing friction is eliminated; speeds up to 1800 r.p.m. practical . . . No leakage; packless design provides completely sealed-in unit . . . No contamination; lubrication-free design removed major source of contamination. Oxygen-containing reactions now possible . . . No pressure limitation resulting from packing . . . Lower power input not required, because packing friction losses are eliminated . . . Longer shaft life; thus, low maintenance and replacement costs . . . No packing replacement costs . . . No shaft cooling equipment required, because there is no packing to generate friction heat . . . Continuous operation; no packing replacement shutdown 72 A
Magnetically driven stirred autoclave attains practical speeds up to 1 8 0 0 r.p.m.
. . . Interior shaft speed can be monitored with a continuous tachometer The external driver magnet assembly consists of an outer steel housing containing four rows of permanent magnets spaced at 90° intervals and arranged with four attracting poles on their inner faces. This external assembly is rotated by a motor-driven V-belt. The internal driven magnet assembly consists of circular ceramictype permanent magnets encasing a square rotor shaft. Both the magnets and the shaft are enclosed in a leakproof housing. The internal assembly, of course, rotates in response to the rotation of the external magnet assembly. The packless, magnetically actuated, rotary stirred autoclave has been subjected to both rigorous laboratory testing as well as successful on-the-job operation. These tests
INDUSTRIAL AND ENGINEERING CHEMISTRY
clearly proved that highly viscous materials can be mixed efficiently. Packless autoclaves are offered under the name AE Magnedrive. A choice of standard models in 300-cc, 1-liter, and 1-gallon capacities, with pressure ratings to 5,000 p.s.i., are presently offered. In addition to these standard vessels, special units for higher pressures and with different materials of construction, special connections, drives, and closures are also available. Complete catalog and price information is available on request. Dept. IEC, Autoclave Engineers, Inc., 2917 West 22nd Street, Erie, Pa. E-l Prices quoted are those submitted by the manufacturer. They are subject to change without notice. Prices are f.o.b. point of manufacture.
Miniature
Filter Systems
Small filter system is designed for pilot plants and process industries working with small volumes of cor rosive or expensive liquids. System has lucite filter chamber with mini ature epoxy centrifugal pump. U nit is powered by %Q h.p. con tinuous heavy-duty motor and will
Dept. IEC, Dept. JA-35, Schutte and Koerting Co., Cornwells Hts., Bucks Co., Pa. E-3
Swing-Check
Valve
Full-flow swing check valve offers a valve disk magnetically coupled to the switch mechanism, which fea tures mercury-to-mercury switch contacts. Unit is designed to re atmospheric intake and at 1800 r.p.m. with supercharging. Maxi mum displacement is 23.7 cubic inches per revolution and maxi mum torque is 378 pound-inches per 100 p.s.i. T h e variable package with control and an auxiliary pump has a horsepower-to-weight ratio of about 3.2 pounds per horsepower, based on 1200 r.p.m. and 5000 p.s.i. Prices on request. Dept. IEC, Vickers, Inc., Div. of Sperry Rand Corp., Detroit 32, Mich. E-6
keep from 10 to 25 gallon tanks vigorously agitated or filtered to sparkling clarity. Dynel filter tubes. Models come with 1- and 3-filter tube set up, and are priced at $98 and $125, respectively. Dy nel, porous stone and porous carbon tubes are available. Dept. IEC, Sethco Mfg. Corp., 2284 Babylon Turnpike, Merrick, L. Ι., Ν. Υ.
Impact Mill
E-2 Gas Scrubber Ejector-Venturi gas scrubber sep arator gives high efficiency and low liquid carry-over. T h e unit's inter nal element separates noncondeusable gas from liquid and reduces liquid carry-over as much as 98% over gravity-type separators. Size range, 3 to 12 inches (discharge and suction connections). Custom units vary with customer specifications.
motely signal flow or no-flow through the valve, a n d / o r provide an interlock safety control in start up or shutdown. Prices are avail able from manufacturer. Dept. IEC, Magnetrol, Inc., 5300 Belmont Rd., Downers Grove, III. E-4
Radiation Source
Machine
A monopulse linear accelerator, capable of producing high intensity gamma radiation in short pulses, a steady state "linac" of similar out put, and a small cyclotron are de signed for industrial and academic uses. Radiation machines feature reliability, simplicity of operation, high performance, and a "turn key" capability. Prices on the machines may be obtained from the manufac turer. Dept. IEC, Hughes Aircraft Co., Florence Ave. & Teale St., Cul ver City, Calif. E-5
Piston Pumps and
Stainless steel centrifugal impact mill provides contamination-free processing in applications involving particle size reduction, deagglomeration, differential grinding, and wet and dry homogenization. Mill uti lizes 27-inch rotor and mounts a 15
Motors
Pressures to 5000 p.s.i. and capaci ties to 180 gallons per minute are realized with a new line of angletype piston pumps and motors. Pumps operate at 1200 r.p.m. with
to 75 h.p. motor. Features stainless steel construction, rotor speeds to 5000 r.p.m., and can be sealed for inert atmosphere operation. Units are priced in the $10,000 to $20,000 range, depending on extra cus tomer-desired features. Dept. IEC, Entoleter, Inc., New Haven, Conn. E-7 (Continued on page 74 A) VOL. 5 3 , NO. 7
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JUIY 1961
73 A
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Turbine
Booster
Additional
Pump
R e n e w a b l e liners a n d a choice of mechanical seals are featured in Roth's regenerative centrifiugal booster p u m p design, which gives service u p to 60 p.s.i.g. in suction, boiler feed, condensate return, transfer, or suction. Weekly pack ing m a i n t e n a n c e is avoided t h r o u g h
New Equipment All-Epoxy Filter Systems are recom mended for corrosives, fluoroborates, plating solutions, and solvents. Ranges of rated capacity, 300 to 450 and 1800 to 2700 gallons per hour. Dept. IEC, Sethco Mfg. Corp., 2284 Babylon Turnpike, Merrick, L. Ι., Ν. Υ.
Lu
E-10
LZ
Horizontal Tank Heater provides 233 feet of heating surface. Heaters will pass through standard API 20-inch manhole.
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Dept. IEC, Griscom-Russell Co., 185 Wetmore Ave., Massillon, Ohio. E-l 1
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