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The analysers used for the determination of CO, CO 2 , H 2 and O 2 in gas from coal gasifiers may not be completely selective, so for process control it is necessary to predict the interferences or interactions by calibration and modelling. The use of a neural network to model these interactions is compared with standard linear or non-linear models. Only a small number (seven)...
The synthesis of five fluorinated non-conjugated dienes from commercially available α,ω-diiodoperfluoroalkanes is described. Preparation of the fluorinated divinyl derivatives H 2 C=CH(CF 2 ) n CH=CH 2 (n = 2, 4, 6) (2,2, 2,4 and 2,6) was effected by ethylenation of these diiodinated compounds in various ways followed by dehydroiodination in ethanolic potassium hydroxide...
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