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大家知道如何从盐酸中提取氯化氢吗

时间:2018-12-28 17:27 点击:次

    ZAIHUAGONGSHENGCHANYOUQISHIYOUJILVCHANPIN(HUOZHONGJIANCHANPIN)SHENGCHANZHONG,CHANGBANSUIFUCHANLVHUAQINGDESHENGCHENG。GONGYESHANGCHULIFUCHANLVHUAQINGDEFANGFAYOU:YONGSHUIXISHOUWEI31%YANSUAN,YONGYUQITACHANPINSHENGCHANHUOZUOWEIFUCHANYANSUANXIAOSHOU;YONGHENGFEIXIYANSUAN(QIZHONG,HC1DEZHILIANGFENSHUWEI18.5%}20%)XUNHUANXISHOUZAIJINGTUOXICHUGANLVHUAQINGYONGYUQITACHANPINSHENGCHAN(RUDIANSHIFAVCM)。

    ZAISHENGCHANGONGYISHANGCAIYONGGANFAFENLIDELVHUAQING(RUF22SHENGCHAN、RIMUDESHANJIFAGUOATOCHEMJIAWANLVHUAWUSHENGCHANGONGYI)ZAIZUOWEIHUAGONGYUANLIAO。DANSHI,YOUXIESHENGCHANGONGYIBUKEBIMIANDIHUICHANSHENGDALIANGXIYANSUAN,YOUQISHIFANYINGCHANSHENGSHUIYOUCUNZAILVHUAQINGQITIDECHANGHE。RU:

    (1)有机氯残液或废气焚烧产生的尾气,受其中氯化氢气体分压的限制,往往用水吸收只能得到HC1质量分数<20%的稀盐酸。

    (2)F22SHUIZHENGQILIEJIESHENGCHANSIFUYIXI,JIARUDESHUIZHENGQI(ZAIREJIEZHI)YUSHENGCHENGDEHC1XINGCHENGYANSUAN,YANSUANDENONGDUQUJUEYUSHUIZHENGQIDEGUOREWENDU。MUQIANGUONEISHENGCHANGONGYICHANSHENGDEXIYANSUANZHONGHC1DEZHILIANGFENSHUDADUOWEI15%20%YIGUONEISIFUYIXIZONGCHANNENGJI,MEINIANPAICHUDEXIYANSUAN(YI16%HC1JI)YUEWEI28WANDUN。

    (3)JIACHUNFASHENGCHANJIAWANLVHUAWU,DIYIBUSHIJIACHUNHEHCLQITIFANYINGSHENGCHENGLVJIAWANHESHUI,FANYINGSHUIYUGUOJINGDELVHUAQINGSHENGCHENG19%}20%XIYANSUAN;DIERBUFANYINGSHIYILVJIAWANLVHUASHENGCHENGJIAWANLVHUAWUJIFUCHANDELVHUAQING,CHANSHENGDEHC1YIBUFENFANHUIQINGLVHUA,QIYUZUOWEIFUCHANPAICHUXITONG。

    目前,国内大多数企业用氯化氢气体产生的稀盐酸再加水吸收为31%盐酸。该副产盐酸如有市场可以外售,但需精制;如企业内部消化,则多数采取脱吸为干氯化氢,在此情况下,必须排出稀盐酸以平衡反应水及吸收加入的水。


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