公开(公告)号：MY160240A

公开(公告)日：2017-02-28

申请号：MYPI2012001189

申请日：2010-08-10

Applicant: STAMICARBON

Inventor： MEESSEN JOZEF HUBERT ,  ORPHANIDES PAN

IPC: C07C273/16 ,  C01C1/12 ,  C05C3/00 ,  C05C9/00 ,  C05G3/00

Abstract: THE INVENTION RELATES TO A METHOD FOR RECOVERY OF UREA DUST AND AMMONIA FROM A GAS STREAM BY CONTACTING SAID GAS STREAM WITH AN AQUEOUS SULPHURIC ACID SOLUTION, THUS FORMING AN ACID SOLUTION OF AMMONIUM SULPHATE AND UREA, CHARACTERIZED IN THAT THE ACID SOLUTION IS CONCENTRATED TO A MELT COMPRISING LESS THAN 5 WT% OF WATER, WHICH MELT IS SUBSEQUENTLY TRANSFERRED INTO SOLID PARTICLES COMPRISING UREA AND AMMONIUM SULPHATE