Separation of Heterocyclic Compounds by High Pressure Crystallization. (II). Separation from Quinoline-Isoquinoline system.
نویسندگان
چکیده
منابع مشابه
Separation of the Mixtures of Chiral Compounds by Crystallization
Reaction of a racemic acid or base with an optically active base or acid gives a pair of diastereomeric salts. Members of this pair exhibit different physicochemical properties (e.g., solubility, melting point, boiling point, adsorbtion, phase distribution) and can be separated owing to these differences. The most important method for the separation of enantiomers is the crystallization. This i...
متن کاملSEPARATION OF NONHISTONE HIGH MOBILITY GROUP (HMG) FROM HUMAN LYMPHOCYTES BY HIGH PERFORMANCE LIQUID CHROMATOGRAPHY
The high mobility group (HMG) of nonhistone proteins have been investigated using two high performance liquid chromatographic techniques (HPLC). Reversed-phase HPLC under conditions of 50 mM triethylamine adjusted to pH 2.2 with phosphoric acid (solvent A) and 95% acetonitrile in water (solvent B) was used to separate proteins primarily on the basis of differences in the overall hydrophobi...
متن کاملSeparation of ursodeoxycholic acid by silylation crystallization
Background: Ursodeoxycholic acid is an important clinical drug in the treatment of liver disease. In our previous work, ursodeoxycholic acid was prepared by electroreduction of 7-ketolithocholic acid. The separation of ursodeoxycholic acid from the electroreduction product (47% (w/w) ursodeoxycholic acid) by silylation crystallization is described herein. Results: N,N-dimethylformamide was used...
متن کاملHigh-pressure liquid chromatography: separation
The high-pressure liquid chromatographic separation of ail of the known metabolites of vitamin D2 and vitamin D3 found in biological fluids has been achieved. This technique has been successfully applied to the analysis of vitamin D mixtures, purification of vitamin D metabolites, and identification of radioactive peaks. Some theoretical bases for the observed resolutions are suggested. Supplem...
متن کاملDesign of Optimal Process Flowsheet for Fractional Crystallization Separation Process
A procedure is presented that synthesizes fractional crystallization separation processes to obtain pure solids from multi-component solutions. The method includes a procedure to generate a network flow model to identify alternative process designs for fractional crystallization. The main advantage of this systematic procedure with respect to other reported procedures is using non-equilibri...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the Japan Institute of Energy
سال: 1993
ISSN: 1882-6121,0916-8753
DOI: 10.3775/jie.72.263