Process for monitoring and controlling nitrating processes with the aid of an online spectrometer
    11.
    发明授权
    Process for monitoring and controlling nitrating processes with the aid of an online spectrometer 失效
    借助在线光谱仪监测和控制硝化过程的过程

    公开(公告)号:US07227147B2

    公开(公告)日:2007-06-05

    申请号:US10769997

    申请日:2004-02-02

    CPC classification number: C07B43/02

    Abstract: A process for monitoring and/or controlling a nitrating process, having the following steps: measuring inline infrared spectra of nitric acid content in a reaction mixture stream downstream of the nitration reaction, preferably near-infrared spectra, evaluating the measured spectra by means of a computer-assisted, matrix-specific calibration model for the purpose of determining the content of nitric acid, transmitting the results of spectrometric examination to a process control system, inputting the results of spectrometric examination for the purpose of specifying the content of nitric acid in the acid phase into a regulator (224) for control of the metering (207,217) of nitric acid into a nitrating reactor.

    Abstract translation: 一种用于监测和/或控制硝化过程的方法,具有以下步骤:测量在硝化反应下游的反应混合物流中的硝酸含量的在线红外光谱,优选近红外光谱,借助于 计算机辅助的基质特异性校准模型,用于确定硝酸含量,将光谱检测结果传输到过程控制系统,输入光谱检测结果,以确定硝酸的含量 酸相进入调节器(224),用于控制硝酸的计量(207,217)进入硝化反应器。

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