Title: Reaction reflux tower in use for producing nitrogen-15
Application Number: 03151235 Application Date: 2003.09.26
Publication Number: 1600680 Publication Date: 2005.03.30
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C01B21/02,B01B1/08
Applicant(s) Name: Shanghai Chemical Inst Address: 200062
Inventor(s) Name:
Attorney & Agent: zhao zhiyuan
Abstract:
     The invention relates to reaction reflux tower used for producing nitrogen-15, it consists of tower and nitric acid charging part, spring cooling coiled pipe, dilute sulphuric acid discharging part, thermometric part which are fit in the tower. Said nitric acid charging part includes nitric acid entrance pipe and nitric acid liquid sparger fit on top of the tower, said spring cooling colide pipe part includes at least one group of spring cooling coiled pipe fit at central section of the tower, said dilute sulphuric acid discharging part includes dilute sulphuric acid pipe and supporting screen desk fit on bottom of the tower, there is a NOx gas exit pipe on top of the tower, a SO2 gas entrance pipe on lower part of the tower and a turbogrid cooling water device on outer wall of the tower.
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