Compositions – X-ray or neutron shield
Patent
1980-07-17
1981-09-15
Shine, W. J.
Compositions
X-ray or neutron shield
260239E, B01J 2384, B01J 2386
Patent
active
042896568
ABSTRACT:
A dehydration catalyst and process for making an alkylenimine from an alkanolamine wherein the catalyst contains oxides of either tantalum or niobium together with the oxides of iron and chromium and in which the ratios of the metals are
REFERENCES:
patent: 3336294 (1967-08-01), Miller et al.
Childress David L.
Hayes William V.
Ancona A. C.
Shine W. J.
The Dow Chemical Company
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