蒸馏液
2.Langendorff methed was utilied to observe the effects of distilled fluid of Cinnamom twig (DFC) protecting the isolated hearts of rats from ischemia and re perfusion damage.
3.It was found that when the hearts were perfused with DFC ( 1.5 ml/L), the rate by which vevtricular fibrillation occured during re perfusion was decreased, and the cardiac functions were improved, for instance, arrhythmia was reduced, dp/dt max and the left ventricular functional index were increased. These changes were accompanied by increase of oxigen volume intaken by the myocardiac cells.
4.The application experiment of aroma-producing active dry yeast in vinegar production demonstrated that the sensory quality, total acids content and total esters content of experimental samples were better or higher than that of contrast samples; the flavoring compositions quantity, content and species in experimental samples were higher or more than that in contrast samples (especially ethyl acetate content and ethyl lactate content increased by 0.99% and 1.22% respectively); the use of dry yeast could increase flavoring compositions content in vinegar, better vinegar aroma, and improve vinegar quality; and the optimum use level of dry yeast was 0.2% (for main grains).
5.It is found that the combination of vacuum distillation and recrystallization is a feasible process for isolation and purification diphenyl carbonate. The remainder after vacuum distillation is disposed by ethanol, the yield of DPC arrived at about 60.5%. The purity of DPC was tested by melting point, APHA, IR, Fe content and phenol content, the test results show that the purity of disposing DPC accords with the standard of industrial product.
6.NFM process also showed the advantages of simple flow scheme, mild operating conditions and lower operation cost, especially preferable for high benzene concentration feedstock.
7.The primary problems existing in industrializing large-scale distillation equipments are pointed out, the magnifying &energy saving distillation technology developed by Tianjin University, such as low liquid-level gradient technology, uniform liquid-vapor distribution technology, anti-clogging technology and a series of tower internals technology, on the basis of modern mass transfer theory hydrodynamics calculation hydrodynamics &process system engineering theory, axe introduced.
8.a mixture of amyl alcohols and propanol and butanol formed from distillation of fermented liquors.
9.any of various strong liquors distilled from the fermented sap of toddy palms or from fermented molasses.
10.The VLE data of acetic acid-isopropenyl acetate system were measured using the improved Ellis equilibrium distillation still.
