公开(公告)号：EA021089B1

公开(公告)日：2015-04-30

申请号：EA201270417

申请日：2010-08-10

Applicant: STAMICARBON

Inventor： MEESSEN JOZEF HUBERT ,  ORFANIDIS PANTELIS

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

Abstract: Изобретениеотноситсяк способуизвлеченияпылимочевиныи аммиакаизгазовогопотокавзаимодействиемупомянутогогазовогопотокас воднымрастворомсернойкислоты, приэтомобразуякислыйрастворсульфатааммонияи мочевины, отличающийсятем, чтокислыйрастворконцентрируетсядорасплава, содержащегоменее 5 мас.% воды, такойрасплавв последствиипревращаетсяв твердыечастицы, содержащиемочевинуи сульфатаммония.

公开(公告)号：CA2774246A1

公开(公告)日：2011-03-24

申请号：CA2774246

申请日：2010-08-10

Applicant: STAMICARBON

Inventor： MEESSEN JOZEF HUBERT ,  ORFANIDIS PANTELIS

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.

公开(公告)号：BR112012006029B1

公开(公告)日：2022-03-22

申请号：BR112012006029

申请日：2010-08-10

Applicant: STAMICARBON

Inventor： JOZEF HUBERT MEESSEN ,  ORFANIDIS PANTELIS

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

Abstract: método para recuperar pó de ureia e amônia de uma corrente de gás. a presente invenção refere-se a um método para recuperação de pó de ureia e amônia de uma corrente de gás através de contato da dita corrente de gás com uma solução de ácido sulfúrico aquosa, então formação de uma solução ácida de sulfato de amônio e ureia, caracterizado pelo fato de que a solução ácida é concentrada para um fundido compreendendo menos do que 5% em peso de água, fundido que é subsequentemente transferido para partículas sólidas compreendendo ureia e sulfato de amônio.

公开(公告)号：CA2774246C

公开(公告)日：2016-06-28

申请号：CA2774246

申请日：2010-08-10

Applicant: STAMICARBON

Inventor： MEESSEN JOZEF HUBERT ,  ORFANIDIS PANTELIS

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.