Document RJo1kx4B7NgDBpLp2jJm061DV
w r GRACE & oo.
RESEARCH DIVISION
Telephone 3 C' - 531-57 1!
HEW POSTAL ADDRESS: 7379 ROUTE 32 COLUMBIA, M A fi Y L A N 2 l 04H
CONSOLIDATED MONTHLY REPORT MAY 1973
This Consolidated Monthly Summary contains the technical information for May 1973. Because of the highly confidential nature of its contents, circulation is limited. Those receiving copies are requested to limit access to only those members within their organi zation who have a real need-to-know.
GRACE
CONFIDENTIAL
15208068
MONTHLY REPORT FOR MAY 1973 CONSOLIDATED EDITION
;'iie 1,
NOD iC GO CUTS.IDE U.S.
This report contains information on the following activities at the Washington Research Center:
PROJECT TITLE
PROJECT NO.
DAREX Desalting Plant Services - WRC Support Mono-Kote Product Improvement Davison Cracking Catalyst New Construction Products
Catalytic Ozonation for NH3 Removal From Waste Water
Possible Specific Uses of Fully Delaminated Vermicullte or Biotite
Auto Exhaust Catalyst
Monolithic Catalyst Support
Monolith Cement Air Pollution Control - Alumina Sphere Process
2451 2659
2419
2680
2677
2680 2302
2304
22 64 2212
PAGE
1 2 -2
3 3
4 4a 4c 4c 4d
HYPOLTM Type FHP
HYPOLTM Type CHC Emulsion Breakers Epoxy Hardeners New Epoxy Resins Printable Water-Based Release Coatings Wet-Strength Agents
Floerger Polyacrylamides
Polystyrene Bead-Board G irinkage Fire-Resistant Bag Study Intumescent Formulation Study Alrmold Support Golding Brothers Consultation Fire Retardancy - Marco Polyester Resins Disposable Dishes for Microwave and Thermal
Ovens
1432 1438
1656
1404 1408
1435 1441 1440
1437 1427
1656
1561
1560
1407 1332
5
6 6
7 7
8
9
9
10 10 10 11 11 11 12
Photopolymer Wear Coating For Resilient Flooring Dry-Film Photoresist
Solder Photoresist Offset Lithographic Plate Polyene Development LETTERFLEX - GLASS Project
1343 1372
1387 1373 1340
1385
13 14 14
17 17
17a
15208069
I
CONSOL II
.0
June 1, 1973
PROJECT TITLE
PROJECT NO.
PAGE
Adapted p.umeri Microbes -- CHRGN-X Dal ry Methane Inhibition
nzyrr.atic Treatment of Feedlot Bloat
cours preventative Poultry Growth Promoter
FDA Consultant
4640 4 647
4649 4650 4634 4661
l8 18 18
19
19 19 19
Foam Studies - Forgipac Support
3427
Phillips Magnapore5' Silica Process Development (Davison) 24l6
Industrial Catalyst Technical Service
2838
20 20 ' 21
Research Division Activity Report
Appendix
Co M
15208070
l-
2-
June 1, 1973
v :-K.:~E PRODUCT IMPROVEMENT (Project ?659)
The emphasis of this month's activity has not changed from last month. Characterization of Mono-Kote raw materials, vermiculite end gypcum, from different sources with the view of determining their properties relating to the shrink-crack problem is continu ing. Effort has been made to relate compressive strength, flexural strength, and elasticity of ZOU mortars to shrink-crack. These show little relation to the problem when considered alone. However, the combined responses of flexural strength and elastic moduli as a function of cure time appear to offer some explanation for the cause of crack formation. Two unsatisfactory ZCU's, one from Gypsum, Ohio and other from Maryland, when made up into neat' passes and cured in a similar manner, undergo expansion, shrink age, and expansion again. California and Iowa ZOU's, which are less brittle with relatively little change in flexural strength and elastic moduli, shrink or change little in dimensions with drying and give satisfactory performance.
No great differences were found in wet density and set times of mortars prepared with Maryland ZOU mixed with No. 3 Llbty and Kearney vermiculite expanded at Trenton and Muirkirk. Vlcat consistency for Libby ore expanded at Muirkirk was greater than for Trenton. No difference was found for Kearney ore expanded at either plant.
Comparison of attrition resistance for Libby and Kearney vermicu
lite exfoliated at Trenton and Muirkirk showed that Libby vermi culite is more resistant to attrition than Kearney. Exfoliation at Trenton causes less attrition than Muirkirk.
The characterization of ZOU's and vermiculltes along with their interatlon as related to shrink-crack will continue.
(Kraus, Kolbe, Legal)
DAVISON CRACKING CATALYST (Project 2L19)
The objective is to determine if technology developed for sodiumsillcofluorlde sodium-silicate cements can be applied to improve the attrition resistance of Davison's cracking catalyst. Davison completed their physical and chemical testing of spray-dried sam ples submitted to them. Results indicate that attrition resis tance has been improved; however, activity has been sharply re duced. This is probably due to residual sodium which is much higher than usual and also fluorine which normally Is not present.
1820807 1