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公开(公告)号:AU724141B2
公开(公告)日:2000-09-14
申请号:AU6875598
申请日:1998-03-31
Applicant: BATTELLE MEMORIAL INSTITUTE
Inventor: BLONIGEN SCOTT J , FASSBENDER ALEX G , LITT ROBERT D , MONZYK BRUCE F , NEFF RICHELLE L
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公开(公告)号:CA2285277C
公开(公告)日:2007-08-07
申请号:CA2285277
申请日:1998-03-31
Applicant: BATTELLE MEMORIAL INSTITUTE
Inventor: NEFF RICHELLE L , MONZYK BRUCE F , LITT ROBERT D , BLONIGEN SCOTT J , FASSBENDER ALEX G
Abstract: Apparatus, materials, and methods for removing ammonia from fluids using met al hydroxides (e.g. zinc hydroxide) and metal loaded media (e.g. zinc loaded ion exchange resins); the metal hydroxides and metal loaded media may be regenerated with a weak acid (pK a between 3 and 7). Alternatively, ammonia is removed from fluids by using H2S O4 and ZnSO4 and metal loaded media; the metal loaded media may be regenerated with H2SO4 and ZnSO4; the ammonia containing H2SO4 and ZnSO4 may be concentrated as necessary to form (NH4)2SO4.ZnSO4.6H2O (ammonium zinc sulfate hexahydrate) crystals. These crystals are removed from the mother liquor and heated to temperatures exceeding 200 .degree.C releasing NH3 and H2O vapor upon the decomposition of the crystals.
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公开(公告)号:ES2241132T3
公开(公告)日:2005-10-16
申请号:ES98914393
申请日:1998-03-31
Applicant: BATTELLE MEMORIAL INSTITUTE
Inventor: BLONIGEN SCOTT J , FASSBENDER ALEX G , LITT ROBERT D , MONZYK BRUCE F , NEFF RICHELLE L
Abstract: Aparato, materiales y procedimientos para eliminar amoniaco de fluidos utilizando hidróxidos metálicos (por ejemplo, hidróxido de zinc) y medios de carga metálica (por ejemplo, resinas intercambiadoras de iones cargadas de zinc); los hidróxidos metálicos y los medios de carga metálica pueden regenerarse con un ácido débil (pK{sub,a} entre 3 y 7). Alternativamente, se elimina el amoniaco de fluidos utilizando H{sub,2}SO{sub,4} y ZnSO{sub,4} y medios de carga metálica; los medios de carga metálica pueden regenerarse con H{sub,2}SO{sub,4} y ZnSO{sub,4}; el amoniaco que contiene H{sub,2}SO{sub,4} y ZnSO{sub,4} puede concentrarse si fuera necesario para formar cristales de (NH{sub,4}){sub,2}SO{sub,4}uZnSO{sub,4}u6H{sub,2}O (sulfato hexahidrato de amoniaco y zinc). Los cristales se eliminan del licor madre y se calientan hasta temperaturas que sobrepasan los 200ºC liberando NH{sub,3} y H{sub,2}O vapor por descomposición de los cristales.
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公开(公告)号:AT296680T
公开(公告)日:2005-06-15
申请号:AT98914393
申请日:1998-03-31
Applicant: BATTELLE MEMORIAL INSTITUTE
Inventor: BLONIGEN SCOTT J , FASSBENDER ALEX G , LITT ROBERT D , MONZYK BRUCE F , NEFF RICHELLE L
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公开(公告)号:AU6875598A
公开(公告)日:1998-10-22
申请号:AU6875598
申请日:1998-03-31
Applicant: BATTELLE MEMORIAL INSTITUTE
Inventor: BLONIGEN SCOTT J , FASSBENDER ALEX G , LITT ROBERT D , MONZYK BRUCE F , NEFF RICHELLE L
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公开(公告)号:CA2285277A1
公开(公告)日:1998-10-08
申请号:CA2285277
申请日:1998-03-31
Applicant: BATTELLE MEMORIAL INSTITUTE
Inventor: FASSBENDER ALEX G , LITT ROBERT D , MONZYK BRUCE F , NEFF RICHELLE L , BLONIGEN SCOTT J
Abstract: Apparatus, materials, and methods for removing ammonia from fluids using metal hydroxides (e.g. zinc hydroxide) and metal loaded media (e.g. zinc loaded ion exchange resins); the metal hydroxides and metal loaded media may be regenerated with a weak acid (pKa between 3 and 7). Alternatively, ammonia is removed from fluids by using H2SO4 and ZnSO4 and metal loaded media; the metal loaded media may be regenerated with H2SO4 and ZnSO4; the ammonia containing H2SO4 and ZnSO4 may be concentrated as necessary to form (NH4)2SO4.ZnSO4.6H2O (ammonium zinc sulfate hexahydrate) crystals. These crystals are removed from the mother liquor and heated to temperatures exceeding 200 ~C releasing NH3 and H2O vapor upon the decomposition of the crystals.
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