U An extension of the general method for correlating forcedconvection heat transfer data is proposed for the case of a coil and the inside surface of a vessel with the fluid agitated by a flat paddle.
SYNTHETICammonia is rapidly becoming the primary source of nearly all fixed-nitrogen compounds. It is now the prime raw material from which nitric acid is made all over the world. The du Pont Company has been a large producer of nitric acid from Chilean nitrate for a great many years, and has closely followed all work in the nitrogenfixation field because of its obviously important bearing on
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