发明名称 |
In-line method for determining the residue content of an isocyanate and apparatus useful therefor |
摘要 |
An in-line spectrometric method for determining the distillation residue content in an opaque, dark-colored mixture containing an isocyanate and tar-like materials (residue) during the isocyanate production process. A probe capable of directing light at wavelengths of from 1050 to 2150 nm is inserted in a stream of the residue-containing mixture and light is transmitted through the stream. Light absorption data is collected and a near-infrared spectrum is generated. The residue content is then determined using a chemometric model. Knowledge of the residue content makes it possible to control and optimize the distillation process. |
申请公布号 |
US6300633(B1) |
申请公布日期 |
2001.10.09 |
申请号 |
US19980110526 |
申请日期 |
1998.07.06 |
申请人 |
BAYER CORPORATION |
发明人 |
HUNT ROBERT N.;ALLEN GARY F.;JACKSON JULIE A.;SCHAREIN PETER;RYAN PETER J.;MACNAUGHTON, JR. DONALD;SOMMER KLAUS;PHILYAW LARRY E. |
分类号 |
G01N21/35;(IPC1-7):G01J5/02 |
主分类号 |
G01N21/35 |
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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