DONNA D VAN DAM, APN/CNM
Midwife at Brom Ct, Naperville, IL
License number
Illinois 309.000811
Category
Midwife
Type
Advanced Practice Midwife
Address
Address
720 Brom Ct SUITE 104, Naperville, IL 60540
Phone
(630) 717-9977
(630) 717-6267 (Fax)
(630) 717-6267 (Fax)
Organization information
See more information about DONNA D VAN DAM at bizstanding.comDonna D Van Dam
720 Brom Ct STE 203, Naperville, IL 60540
Categories:
Midwives, Nurse Practitioners
Phone:
(630) 357-7979 (Phone)
Professional information
See more information about DONNA D VAN DAM at trustoria.com
Chromium Expanded Smectite Clay
Chromium Expanded Smectite Clay
US Patent:
4452910, Jun 5, 1984
Filed:
Jun 15, 1982
Appl. No.:
6/388697
Inventors:
P. Donald Hopkins - St. Charles IL
Bernard L. Meyers - Wheaton IL
Donna M. Van Duch - Naperville IL
Bernard L. Meyers - Wheaton IL
Donna M. Van Duch - Naperville IL
Assignee:
Standard Oil Company (Indiana) - Chicago IL
International Classification:
B01J 2116
US Classification:
502 84
Abstract:
Expanded layer, smectite clay having a regular pore structure suitable for catalytic uses and a process for preparing said expanded clay by treating a suspension of commercial smectite clay with a chromium-oligomer solution and subjecting the treated clay to a stabilization heat treatment in an inert gas atmosphere.