The development of technology of 9-succinyl-8-decen acid
DOI:
https://doi.org/10.15587/2312-8372.2015.51052Keywords:
maleic anhydride, oleic acid, adduct, technology of 9-succinyl-8-decen acid, flow sheetAbstract
The technology of 9-succinyl-8 decen acid is proposed. The main stage and flows are shown in the flowchart. Technology type is periodic responds to manual discharge of the crystalline product. Basic stages of technology are: charge of the components, hot filtering, synthesis in the main unit at the reflux temperature (120-123 °C), cooling the reaction mass, secondary filtration of sediments, crystallization of 9-succinyl-8-decen acid, evaporation.
As a result, this technology results in two target product: 9-succinyl-8-decen acid and mixture of raw materials, a residue of oleic acid and byproducts. The second product can be used as the organic solvent and also as semi-finished product of organic synthesis. The total yield of production is 47-49 %.
The advantages and disadvantages of the scheme and the process are considered. The features of the work associated with the properties of reactants, products and solvent are marked. It is recommended the method of charge the maleic anhydride by the melt to prevent foaming of the reaction mass. It is indicated that the liquid phase of the process is preferably moved by gravity or by vacuum of the filtration funnel to simplify the arrangement of the chart. This is possible through the distribution of equipment on several floors.
Also, in the technology it is provided return of organic solvent – perchlorethylene – back in the process to 80-85 % that significantly reduces production costs, reduce production costs and increase environmental impact of production.
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Copyright (c) 2016 Джасим Амир Т. Ал-Хаддад, Екатерина Валерьевна Киселёва-Логинова, Евгений Вадимович Попов
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