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发明公开
CN101788465A 钛白生产中变灰点的判定方法 有权 复审申请

钛白生产中变灰点的判定方法
摘要：
本发明公开了一种生产钛白的过程中判断变灰点的方法，该方法通过测定钛液的透光度来判断水解钛液的变灰点。根据本发明，水解钛液的透光度突然下降的转折点或者水解钛液的透光度的一阶导数的极值点即为水解钛液的变灰点。
摘要（英）：

The invention discloses a method for judging a graying point in titanium dioxide production. By using the method, the graying point of the hydrolyzate of titanium is judged by measuring the transmittance of the solution of the titanium. In the method, a turning point where the transmittance of the hydrolyzate of the titanium reduces suddenly or an extreme point of a first derivative of the transmittance of the solution of the titanium is the graying point of the hydrolyzate of the titanium.

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