公开(公告)号：US08545789B2

公开(公告)日：2013-10-01

申请号：US12459784

申请日：2009-07-08

申请人： Shu-Hung Yang ,  Cheng-Fa Hsieh ,  Yi-Bau Hung

发明人： Shu-Hung Yang ,  Cheng-Fa Hsieh ,  Yi-Bau Hung

IPC分类号： C01B21/20

CPC分类号： C01B21/1418

摘要： Provided is a method for manufacturing hydroxylamine. In this method, an aqueous reaction medium containing acidic buffer agent and nitrate ions in the presence of a limited amount of metal impurities such as Fe or Cu is introduced into a hydroxylamine synthesis reactor in the presence of catalyst to proceed hydroxylamine synthesis by reduction of nitrate ions with hydrogen gas as reducing agent in the aqueous reaction medium to produce hydroxylamine. The reaction is processed in the aqueous reaction medium with a limited amount of metal impurities or even without metal impurities, such that the selection rate of the hydroxylamine product is increased.

公开(公告)号：US20070243123A1

公开(公告)日：2007-10-18

申请号：US11784273

申请日：2007-04-05

申请人： Shu-Hung Yang ,  Cheng-Fa Hsieh ,  Yi-Bau Hung

发明人： Shu-Hung Yang ,  Cheng-Fa Hsieh ,  Yi-Bau Hung

IPC分类号： C01B21/20 ,  C07C249/08

CPC分类号： C01B21/1418

摘要： Provided is a method for manufacturing hydroxylamine. In this method, an aqueous reaction medium containing acidic buffer agent and nitrate ions in the presence of a limited amount of metal impurities such as Fe or Cu is introduced into a hydroxylamine synthesis reactor in the presence of catalyst to proceed hydroxylamine synthesis by reduction of nitrate ions with hydrogen gas as reducing agent in the aqueous reaction medium to produce hydroxylamine. The reaction is processed in the aqueous reaction medium with a limited amount of metal impurities or even without metal impurities, such that the selection rate of the hydroxylamine product is increased.

摘要翻译： 提供了制备羟胺的方法。 在该方法中，在有限量的金属杂质如Fe或Cu的存在下，将酸性缓冲剂和硝酸根离子的含水反应介质在催化剂存在下引入羟胺合成反应器中以通过还原硝酸盐进行羟胺合成 离子与氢气作为还原剂在水性反应介质中产生羟胺。 反应在水性反应介质中用有限量的金属杂质或甚至没有金属杂质处理，使得羟胺产物的选择速率增加。

公开(公告)号：US20090324480A1

公开(公告)日：2009-12-31

申请号：US12459784

申请日：2009-07-08

申请人： Shu-Hung Yang ,  Cheng-Fa Hsieh ,  Yi-Bau Hung

发明人： Shu-Hung Yang ,  Cheng-Fa Hsieh ,  Yi-Bau Hung

IPC分类号： C01B21/14

CPC分类号： C01B21/1418

摘要： Provided is a method for manufacturing hydroxylamine. In this method, an aqueous reaction medium containing acidic buffer agent and nitrate ions in the presence of a limited amount of metal impurities such as Fe or Cu is introduced into a hydroxylamine synthesis reactor in the presence of catalyst to proceed hydroxylamine synthesis by reduction of nitrate ions with hydrogen gas as reducing agent in the aqueous reaction medium to produce hydroxylamine. The reaction is processed in the aqueous reaction medium with a limited amount of metal impurities or even without metal impurities, such that the selection rate of the hydroxylamine product is increased.

摘要翻译： 提供了制备羟胺的方法。 在该方法中，在有限量的金属杂质如Fe或Cu的存在下，将酸性缓冲剂和硝酸根离子的含水反应介质在催化剂存在下引入羟胺合成反应器中以通过还原硝酸盐进行羟胺合成 离子与氢气作为还原剂在水性反应介质中产生羟胺。 反应在水性反应介质中用有限量的金属杂质或甚至没有金属杂质处理，使得羟胺产物的选择速率增加。

公开(公告)号：US08153092B2

公开(公告)日：2012-04-10

申请号：US13053774

申请日：2011-03-22

申请人： Shu-Hung Yang ,  Cheng-Fa Hsieh ,  Yi-Bau Hung

发明人： Shu-Hung Yang ,  Cheng-Fa Hsieh ,  Yi-Bau Hung

IPC分类号： C01B21/14

CPC分类号： C01B21/1418 ,  C07C249/08 ,  C07C2601/14 ,  C07C251/44

摘要： Provided is a method for manufacturing hydroxylamine. In this method, an aqueous reaction medium containing acidic buffer agent and nitrate ions in the presence of a limited amount of metal impurities such as Fe is introduced into a hydroxylamine synthesis reactor in the presence of catalyst to proceed hydroxylamine synthesis by reduction of nitrate ions with hydrogen gas as reducing agent in the aqueous reaction medium to produce hydroxylamine. The reaction is processed in the aqueous reaction medium with a limited amount of metal impurities, such that the selection rate of the hydroxylamine product is increased while high catalytic activity is kept.

摘要翻译： 提供了制备羟胺的方法。 在这种方法中，在有限量的金属杂质如Fe的存在下，将酸性缓冲剂和硝酸根离子的含水反应介质在催化剂的存在下引入羟胺合成反应器中，以通过还原硝酸根离子进行羟胺合成 氢气作为还原剂在水性反应介质中产生羟胺。 反应在水性反应介质中用有限量的金属杂质处理，使得羟胺产物的选择速率增加，同时保持高催化活性。

公开(公告)号：US20110171103A1

公开(公告)日：2011-07-14

申请号：US13053774

申请日：2011-03-22

申请人： Shu-Hung Yang ,  Cheng-Fa Hsieh ,  Yi-Bau Hung

发明人： Shu-Hung Yang ,  Cheng-Fa Hsieh ,  Yi-Bau Hung

IPC分类号： C01B21/14

CPC分类号： C01B21/1418 ,  C07C249/08 ,  C07C2601/14 ,  C07C251/44

摘要： Provided is a method for manufacturing hydroxylamine. In this method, an aqueous reaction medium containing acidic buffer agent and nitrate ions in the presence of a limited amount of metal impurities such as Fe is introduced into a hydroxylamine synthesis reactor in the presence of catalyst to proceed hydroxylamine synthesis by reduction of nitrate ions with hydrogen gas as reducing agent in the aqueous reaction medium to produce hydroxylamine. The reaction is processed in the aqueous reaction medium with a limited amount of metal impurities, such that the selection rate of the hydroxylamine product is increased while high catalytic activity is kept.

摘要翻译： 提供了制备羟胺的方法。 在这种方法中，在有限量的金属杂质如Fe的存在下，将酸性缓冲剂和硝酸根离子的含水反应介质在催化剂的存在下引入羟胺合成反应器中，以通过还原硝酸根离子进行羟胺合成 氢气作为还原剂在水性反应介质中产生羟胺。 反应在水性反应介质中用有限量的金属杂质处理，使得羟胺产物的选择速率增加，同时保持高催化活性。

公开(公告)号：US07892512B2

公开(公告)日：2011-02-22

申请号：US11784273

申请日：2007-04-05

申请人： Shu-Hung Yang ,  Cheng-Fa Hsieh ,  Yi-Bau Hung

发明人： Shu-Hung Yang ,  Cheng-Fa Hsieh ,  Yi-Bau Hung

IPC分类号： C01B21/14

CPC分类号： C01B21/1418

摘要： Provided is a method for manufacturing hydroxylamine. In this method, an aqueous reaction medium containing acidic buffer agent and nitrate ions in the presence of a limited amount of metal impurities such as Fe or Cu is introduced into a hydroxylamine synthesis reactor in the presence of catalyst to proceed hydroxylamine synthesis by reduction of nitrate ions with hydrogen gas as reducing agent in the aqueous reaction medium to produce hydroxylamine. The reaction is processed in the aqueous reaction medium with a limited amount of metal impurities or even without metal impurities, such that the selection rate of the hydroxylamine product is increased.

摘要翻译： 提供了制备羟胺的方法。 在该方法中，在有限量的金属杂质如Fe或Cu的存在下，将酸性缓冲剂和硝酸根离子的含水反应介质在催化剂存在下引入羟胺合成反应器中以通过还原硝酸盐进行羟胺合成 离子与氢气作为还原剂在水性反应介质中产生羟胺。 反应在水性反应介质中用有限量的金属杂质或甚至没有金属杂质处理，使得羟胺产物的选择速率增加。