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Kolumny do krystalizacji frakcjonowanej

Ostrowski C., Rabczuk A.

Czasopismo Techniczne. Chemia

2000

R. 97, z. 3-Ch

89--113

In theis work crystalizing columns efficiency of different parameters with the aid of selection of column plates amount were determinated. Determination of thhe theoretical amount of column plates in the column could aid determinate to clean rate of the substance.

Wpływ oddziaływań miedzycząsteczkowych na proces krystalizacji strefowej roztworów stałych i układów eutektycznych

Ostrowski C., Rabczuk A.

Czasopismo Techniczne. Chemia

1999

R. 96, z. 3-Ch

1--34

Phenenthrene-carbazole have been selected as a system for study and aliphatic alcohols have been, selected as the system modifiers. A complex with hydrogen bond is formed between carbazole and alcohol. The zone melting method used for separation of this system could be improved by addition of selective solvent. The solvent course shift of eutectic point of the mixture toeards the component, which is separated as an impurity

Calculation of the continuous zone crystallization process

Rabczuk A., Gawdzik A., Mostek A.

Polish Journal of Applied Chemistry

1998

Vol. 42, nr 1

79-89

In this paper the prinriples of purifying process for chemical substances by the continuous crystallization method, involving reflux, are desaibed. The influence of the reflux value both on the purifying effect and on the way of calculating (of zone transport continuous process with reflux) is presented. An equivatent impurities distribution coetficient between the sofid and liquid phase has been introduced. The scheme of calculations of the apparatuses for the continuous zone crystallization process has been presented.