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AMBIENTUM BIOETHICA BIOLOGIA CHEMIA DIGITALIA DRAMATICA EDUCATIO ARTIS GYMNAST. ENGINEERING EPHEMERIDES EUROPAEA GEOGRAPHIA GEOLOGIA HISTORIA HISTORIA ARTIUM INFORMATICA IURISPRUDENTIA MATHEMATICA MUSICA NEGOTIA OECONOMICA PHILOLOGIA PHILOSOPHIA PHYSICA POLITICA PSYCHOLOGIA-PAEDAGOGIA SOCIOLOGIA THEOLOGIA CATHOLICA THEOLOGIA CATHOLICA LATIN THEOLOGIA GR.-CATH. VARAD THEOLOGIA ORTHODOXA THEOLOGIA REF. TRANSYLVAN
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Rezumat articol ediţie STUDIA UNIVERSITATIS BABEÅž-BOLYAI În partea de jos este prezentat rezumatul articolului selectat. Pentru revenire la cuprinsul ediţiei din care face parte acest articol, se accesează linkul din titlu. Pentru vizualizarea tuturor articolelor din arhivă la care este autor/coautor unul din autorii de mai jos, se accesează linkul din numele autorului. |
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STUDIA CHEMIA - Ediţia nr.1-2 din 2002 | |||||||
Articol: |
MODELING AND SIMULATION OF 3-AMINOPROPIONITRILE SYNTHESIS USING DEDICATED SOFTWARE PACKAGES. Autori: CÄ‚LIN-CRISTIAN CORMOÅž, PAUL ÅžERBAN AGACHI. |
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Rezumat: Calcium pantothenate is one of the most used pro-vitamins in the therapy for human beings and for veterinary use. In the synthesis of D,L calcium panthotenate, pantolactone and -alanine are used as starting materials. -Alanine is obtained from alkaline hydrolysis of 3-aminopropionitrile. The synthesis of 3-aminopropionitrile involves the addition of ammonia at acrylonitrile at high temperature and pressure. In this paper the continuous synthesis of 3-aminopropionitrile is described. The synthesis takes place at temperature (100 – 120oC) and pressure (15 – 20 atm). Secondary products can be formed; to avoid this fact a high molar ratio between reactants (ammonia / acrylonitrile = 10 / 1) is used. The synthesis process was modeled and simulated using HYSYS Plant, PRO/II and ChemCAD software packages to demonstrate the reliability of the packages and their performances. From simulation results very valuable information can be obtained regarding real plant operation. | |||||||
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