Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing
Patent
1989-02-28
1990-10-09
Hollrah, Glennon H.
Organic compounds -- part of the class 532-570 series
Organic compounds
Amino nitrogen containing
71 28, 71 29, C07C27302
Patent
active
049622838
ABSTRACT:
Urea and sulfuric acid are reacted in an air-water spray in cocurrent heat exchange therewith to produce concentrated urea-sulfuric acid solutions.
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Harbolt Bruce A.
Moerdyke Donald D.
Hollrah Glennon H.
Kondzella Michael A.
Treaner Susan P.
Union Oil Company of California
Wirzbicki Gregory F.
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