发明名称 |
SETT ATT BORTSKAFFA KVEVEOXIDER I FORM AV AMMONIUMSULFAT FRAN EN GAS |
摘要 |
REMOVAL OF NITROGEN OXIDES IN FORM OF AMMONIUM SULFATE FROM NITROGEN OXIDES-CONTAINING GAS A method of removing nitrogen oxides from a gas containing nitrogen oxides effectively in the form of ammonium sulfate, wherein a nitrogen oxides-containing gas is brought into contact with an aqueous solution which contains at least a ferrous salt and a sulfurous acid alkali salt to have the nitrogen oxides absorbed in the solution in the form of an alkali salt imidodisulfonic acid, and then the thus formed alkali salt of imidodisulfonic acid is converted into ammonium sulfate by hydrolysis at a temperature higher than 100.degree.C after separation and recovery of the salt from the solution. |
申请公布号 |
SE406190(B) |
申请公布日期 |
1979.01.29 |
申请号 |
SE19750000564 |
申请日期 |
1975.01.20 |
申请人 |
* KUREHA KAGAKU KOGYO KK |
发明人 |
S * SAITOH;T * WATANABE;K * KONNO;T * NAKAMURA |
分类号 |
B01D;B01D53/14;B01D53/34;C01B21/20;C01C1/245;(IPC1-7):01B21/20;01C1/245 |
主分类号 |
B01D |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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