Zobrazeno 1 - 10
of 18
pro vyhledávání: '"and Jacques Wiss"'
Publikováno v:
CHIMIA, Vol 47, Iss 11 (1993)
A systematic procedure is presented for application in designing safe processes or in assessing safety of existing processes that are performed at or could reach the boiling point. The evaporative cooling is very efficient, but the maximal rate of he
Externí odkaz:
https://doaj.org/article/fea8ac1eada14f0d8bba9f048615fa03
Publikováno v:
CHIMIA, Vol 44, Iss 12 (1990)
The accuracy of thermal measurements under reflux conditions strongly depends on the experimental conditions. The temperature difference TJ–TR imposed on the system and the temperature of the reactor lid and reflux equipment play an important role
Externí odkaz:
https://doaj.org/article/b342a6a8ac0f4e7cb7c12dee561713c1
Autor:
Jean-Luc Schmuck, Jacques Wiss
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 104:315-321
The health authorities require that equipment used in the pharmaceutical industry is clean prior to use. The main raison is to prevent any contamination of the drug products. This article demonstrates that thermogravimetry (TG) can be used for the de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d23b80e40b4d2cdde040feef13d1668a
https://doi.org/10.1007/s10973-010-1144-7
https://doi.org/10.1007/s10973-010-1144-7
Autor:
Jens Burgbacher, Jacques Wiss
Publikováno v:
Organic Process Research & Development. 12:235-242
Drying is an important part of manufacturing processes in the chemical and pharmaceutical industry. The product quality often depends on the drying conditions and efficiency. Moreover, this unit operation frequently represents the bottleneck of the w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e84140df2dabdcc54afa261953a68dd3
https://doi.org/10.1021/op700293p
https://doi.org/10.1021/op700293p
Publikováno v:
Organic Process Research & Development. 11:1096-1103
The formation of hydrazoic acid HN3 is inherent to many azide processes due to the presence of small amounts of protic components in the reaction mixtures. Hydrazoic acid is an unstable component which may decompose violently. To ensure safe working
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::deada59fc77991b32eb694c387fae244
https://doi.org/10.1021/op7000645
https://doi.org/10.1021/op7000645
Autor:
Jacques Wiss, Gianni Ermini
Publikováno v:
Organic Process Research & Development. 10:1282-1286
Grignard reactions are often highly exothermic and are performed near to or at the boiling point of the solvent. Therefore, a detection of the initiation of the reaction based on temperature measur...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aed9c6033b3b0b505bc61363c8d8da9f
https://doi.org/10.1021/op0601159
https://doi.org/10.1021/op0601159
Publikováno v:
Organic Process Research & Development. 10:349-353
Hydrazoic acid (HN3) is formed during the synthesis of tributyltin azide and in the following cycloaddition to prepare a tetrazole ring compound. The formation of this substance is inherent to many azide processes because small amounts of protic comp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3fb56a60fa9fde96b1173eb226fecc2
https://doi.org/10.1021/op0501803
https://doi.org/10.1021/op0501803
Publikováno v:
Organic Process Research & Development. 9:365-371
A quantitative on-line NIR (near-infrared) method for the monitoring of the formation of a Grignard reagent was developed on laboratory scale using chemometrics and tested in a 630 L pilot plant reactor. Good accuracy of the model was obtained, and f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b640019303f00085c39583503322ee58
https://doi.org/10.1021/op049784h
https://doi.org/10.1021/op049784h
Autor:
Jacques Wiss, Jean Fuchs
Publikováno v:
Organic Process Research & Development. 7:1051-1058
In the chemical industry, compounds are often dried in fluidized bed dryers or in spray dryers. Several explosions due to the induction of highly exothermal decomposition reactions in the presence ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8cb14c65dc020d7431f804f54e957d93
https://doi.org/10.1021/op034050a
https://doi.org/10.1021/op034050a
Autor:
Arne Zilian, Jacques Wiss
Publikováno v:
Organic Process Research & Development. 7:1059-1066
The utilization of online spectroscopic methods (FTIR/Raman) for the development and the monitoring of chemical processes was demonstrated with two important chemical reaction types. The synthesis of tri-n-butyltin azide takes place at the solid−li
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa76a030b283f783d4791fa2d3484b1b
https://doi.org/10.1021/op030009w
https://doi.org/10.1021/op030009w