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61, The volatile oil was extracted from Oroxylum indicum(L. ) Vent by using direct distillation extraction method(DDE). The content of the volatile oil was 1.99%.

62, Recovering pyridine by simple distillation and phase separation with salt was studied.

63, The south crude distillation unit in Liaohe Petrochemical Company mainly processes high-acid-value, corrosive and low-freezing-point naphthenic crude oils after revamping.

64, A new catalytic distillation process for the endothermic reaction of the dehydrogenation of isopropanol is developed in this work.

65, Fatty acid is made from spent material in production of ricinus oil by acidification, washing, and vacuum distillation.

66, With the carbonium 5 separation unit as an example, the operational performance and the energy saving effects of the thermal-ly coupled distillation was simulated and analyzed for the nonideal system.

67, The production reduced pressure distillation was analysed with IR, GC and studied by physical chemistry property.

68, The effects of different conditions on quinoline's purity were investigated by changing the quality ratio of fraction to ethanediol and reflux ratio in the azeotropic distillation experiments.

69, For example , vacuum distillation, vacuum evaporation, crystal, drying etc.

70, Each of our products consults with the perfection curve, base on human body engineering elements, swing in with China and west culture distillation.

71, The removal of uranium from wastewater was carried out by vacuum membrane distillation(VMD) using microporous polypropylene membrane.

72, Neural network based soft sensor models of diesel oil solidifying point(DOSP) on a crude distillation unit are discussed.

73, The study has laid the foundation for short cut design of multicomponent batch distillation column.

74, As for the synthesis problem of distillation separation sequences, the method of graph theory is applied to study network superstructure.

75, The main genesis of heterogeneous crude is migration and fractional distillation of low mature crude, mixing of crude, thickening by edge water, and thickening by bottom water.

76, The advanced control ( APC ) was applied in the atmospheric - vacuum distillation unit in SINOPEC Luoyang Company in 2006.Sentence dictionary

77, It is reveal by GC analysis that the purity of the TMP , treated by reduced pressure distillation and recrystallization in acetic ester , approximates to that of the reagent grade TMP .

78, The quality of green oxane can be up-graded by addition of acid followed by distillation or by p...

79, Both the o-xylene and the carbon tetrachloride have been rendered free of water and free of traces of metal, especially iron, by preliminary treatment by distillation.

80, Concerning the existing problems in the crude oil distillation unit, a prefractionator ovas installed in 1992-1993.

81, Volatile oil was extracted from the roots of Tagetes patula by steam distillation. Chemical ingredients of the oil were analyzed by GC-MC and 10 compounds were identified.

82, A physical and distillation method was applied to the separation of an isopropanol - cyclohexane andisopropanol liquids.

83, Now everyone at home is to have a camphor ball camphor roots, stems, branches, leaves made of distillation.

84, The transformation and production rearrangement of the crude benzol distillation system are described.

85, The feasibility of concentration of benzylpenicillin sodium solution and the effect of operation condition on concentration process by membrane distillation were studied.

86, The refined product with high purity is obtained by vacuum distillation of crude benzal chloride.

87, In this paper, the development and research status of adsorptive distillation process are briefly summarized.

88, After the continuation opens, carry forward traditional constructionion, transfer constructionion distillation, select its essence, throw away its dreg to develop.

89, In accordance with the developing trends of processing imported crude oils in demostic refineries, it is inevitable to install light ends recovery facilities in crude distillation units.

90, METHODS The volatile oil was extracted from Ligustrum lucidum Ait of Gansu by steam distillation, and its ingredients were isolated and identified by gas chromatography-mass spectrometer(GC-MS).