I&EC PROCESS DESIGN AND DEVELOPMENT VOL 1 , NO. 3, JULY 1962 APPLIED JOURNALS, ACS Director of Publications: C. B. Larrabee Editorial Director: Richard L. Kenyon Assistant to the Director of Publications: Joseph H. Kuney Assistant to the Editorial Director: Rodney N . Hader Director of Editorial Research: Robert F. Gould INDUSTRIAL AND ENGINEERING
CHEMISTRY
PROCESS DESIGN AND DEVELOPMENT Editor:
HUGH M. HULBURT
EDITORIAL HEADQUARTERS
Washington 6, D . C. 1155 16th St., N . W . Phone R E p u b l i c 7-3337 Manager, Manuscript Reviewing, Katherine I. Biggs Manager, Manuscript Editing, Ruth Reynard Associate Manuscript Editors, G. Gladys Gordon R u t h M . Howorth Associated Publications: INDUSTRIAL
AND ENGINEERING
CHEMISTRY
(monthly),
Will H . Shearon, Jr., Editor I & E C FUNDAMENTALS (quarterly), Robert L. Pigford, Editor I & E C PRODUCT R E S E A R C H AND D E V E L O P M E N T (quarterly)
Byron M . Vanderbilt, Editor SUBSCRIPTION SERVICE: All communications related to handling of subscriptions, including notifications of CHANGE OF ADDRESS, should be sent to Subscription Service Department, American Chemical Society, 1155 16th St., N.W., Washington 6, D. C. Change of address notification should include both old and new addresses, with zone number, if any, and be accompanied by mailing label from a recent issue. Allow four weeks for change to become effective. SUBSCRIPTION RATES: I&EC PROCESS DESIGN AND DEVELOPMENT, published quarterly, is sold only in combination with the general monthly, INDUSTRIAL AND ENGINEERING CHEMISTRY. The general monthly may be ordered in combination with any one or more of the following I&EC quarterlies: I&EC Process Design and Development I&EC Fundamentals I&EC Product Research and Development at these combination rates: 1962 SUBSCRIPTION
KATES
1 yiar
2 ytars
3 ytars
$2.50 4.00 5.50
$ 4.00 5.50 7.50
$4.50 6.00 8.50
$ 3.00 5.00 7.00
$ 4.50 7.00 9.50
$ 5.00 7.50 10.50
$13.00 15.00 17.00
$25.50 27.50 29.50
$38.00 40.00 42.00
American Chemical Society Members only:
I&EC and 1 Quarterly I&EC and 2 Quarterlies I&EC and 3 Quarterlies Nonmembtrs for subscriptions geint, to U.S. and Canada:
I&EC and 1 Quarterly I&EC and 2 Quarterlies I&EC and 3 Quarterlies Nenmemberj for subscriptions gfiing outside U.S. and Canada:
I&EC and 1 Quarterly I&EC and 2 Quarterlies I&EC and 3 Quarterlies
Canadian postage $0.90 per year additional. Foreign postage $2.50 per year additional. Basic subscription to I&EC PROCESS DESIGN AND DEVELOPMENT is valued as follows: ACS members, 1 year, $1.00; 2 years, $1.50; 3 years, $2.00; nonmembers, 1 year, $1.10, 2 years, $1.70; 3 years, $2.30. However, separate subscriptions to either the monthly or the quarterly will not be accepted. Single Copies: current, $2.00 (includes copy of the current I&EC general monthly). Postage: Canada, $0.10. Claims for missing numbers will not be allowed if received more than 60 days from date of mailing plus time normally required for postal delivery of journal and claim. No claims allowed because of failure to notify the Subscription Service Department of a change of address, or because copy is "missing from files." Published quarterly by the American Chemical Society, from 20th and Northampton Sts., Easton, Pa. Second class postage paid at Easton, Pa. GUIDE FOR AUTHORS, published on inside back cover of this issue, gives copy requirements for manuscripts. Submit three copies to INDUSTRIAL AND ENGINEERING CHEMISTRY, 1155 16th St., N.W., Washington 6, D.C. © Copyright 1962 by the American Chemical Society. tion forbidden without permission.
Reproduc-