Invention Grant
- Patent Title: Process and apparatus for preparing urea from nh3 and co2
- Patent Title (中): 从nh3和co2制备尿素的方法和装置
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Application No.: US81090559Application Date: 1959-05-04
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Publication No.: US3105093APublication Date: 1963-09-24
- Inventor: ROTHKRANS LEONARDUS J
- Applicant: STAMICARBON
- Assignee: Stamicarbon
- Current Assignee: Stamicarbon
- Priority: NL227595 1958-05-07
- Main IPC: C07C273/04
- IPC: C07C273/04 ; G05D23/00
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