Chemical News and Journal of Industrial Science, Tomy 137-138Chemical news office., 1928 |
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Strona 252
... present . Sulphuric acid does not effect a satisfac- tory separation of the olefines and aromatic hydrocarbons present in cracked spirit , as in addition to the polymerisation of ole- fines , condensation of olefines and aromatic ...
... present . Sulphuric acid does not effect a satisfac- tory separation of the olefines and aromatic hydrocarbons present in cracked spirit , as in addition to the polymerisation of ole- fines , condensation of olefines and aromatic ...
Strona 353
... Present in Chemical Teaching 362 The Royal Microscopical Society and its late Secretary Correspondence Notices of Books Forthcoming Events PATENT LICENCES . 364 365 366 368 It is desired to secure the full commercial development in the ...
... Present in Chemical Teaching 362 The Royal Microscopical Society and its late Secretary Correspondence Notices of Books Forthcoming Events PATENT LICENCES . 364 365 366 368 It is desired to secure the full commercial development in the ...
Strona 387
... present publication deals with the problem of applying the sulphite process to the pulping of the eucalypts , and presents the results of investigations carried out during the past four years . 99 The precedence in point of time ...
... present publication deals with the problem of applying the sulphite process to the pulping of the eucalypts , and presents the results of investigations carried out during the past four years . 99 The precedence in point of time ...
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