毕业论文心得从实验室小试到大生产（Graduation thesis, from laboratory to small scale production）.docVIP

毕业论文心得从实验室小试到大生产（Graduation thesis, from laboratory to small scale production） From laboratory to mass production Mooncakexzj Should qingshaojun0823 moderators invitation, have the honor to come to the scientific research experience section guest, brief introduction oneself in the small test to the big production aspects experience, the insufficiency, asks everybody to criticize to correct. 1., industrial production is not observable The laboratory is usually transparent glass bottle, reaction, easy to observe the reaction phenomenon, timely detection of problems, and general industrial reactor (the other contact is not much, not much said), visibility is poor, you can from the inside to look inside the manhole in general, a foam reaction need to be especially careful. In the lab, you 250 or 500ml bottles of the bubble you may not feel what, just above the floor, to the reactor inside the reactor is generally two tons, you magnified thousands of times, the bubble is obvious, this requires you to feed the glass bottle can not follow you feeding amount, feeding amount of your glass bottle feeding according to the blanking is positive; and the formation of foam and glass flask which is not the same, in the flask, when there is no bubble is transparent, with stirring foam will be increased, but the increase is not fast, and not obviously, in the reaction kettle is the opposite, you have no foam when observed from the manholes (kettle inside lamp) the liquid is black, only in the impeller side under a small amount of foam, as the reaction proceeds, more and more bubbles, You can open that is like the sea, with a foam with Blackwater paddle up and down, if the bubble more if you cant see the black liquid, only white foam, and this is the time to look at his level, if the white foam material also rises quickly, this time can be stop heating, reduce the stirring rate, rapid cooling, control foam expansion, prevent blanking! The resulting material, if entered into a buffer t