ISSN:0001-1541    

DOI:10.1002/aic.690100119

出版商:American Institute of Chemical Engineers    

年代:1964

数据来源: WILEY

ISSN:0001-1541    

DOI:10.1002/aic.690100120

出版商:American Institute of Chemical Engineers    

年代:1964

数据来源: WILEY

摘要:

AbstractThe definition of filtration resistance is re‐examined in view of the new theory (12) of the variation of flow rate with respect to distance through a filter cake. In the new definition it is shown that the filtration resistance depends upon slurry concentration as well as applied pressure. A correction factor modifying the specific filtration resistance previously defined by Ruth (5,6) is developed.Where the hydraulic pressure variation within a cake is known, methods are presented for calculating the variation of flow rate with respect to distance and the change of filtration resistance in relation to slurry concentratio

ISSN:0001-1541    

DOI:10.1002/aic.690100121

出版商:American Institute of Chemical Engineers    

年代:1964

数据来源: WILEY

ISSN:0001-1541    

DOI:10.1002/aic.690100122

出版商:American Institute of Chemical Engineers    

年代:1964

数据来源: WILEY

ISSN:0001-1541    

DOI:10.1002/aic.690100123

出版商:American Institute of Chemical Engineers    

年代:1964

数据来源: WILEY

摘要:

AbstractIn the rotary drum crystallizer, solids are deposited from a molten liquid mixture on the cooled surface of a drum. Rotation of the drum carries the solids from the melt to a scraper blade which removes the crystal deposit in a liquid free, convenient form. The object of this investigation was to obtain data on the separation of binary mixtures over a range of melt temperature, drum coolant temperature, drum rotational rate, concentration of impurity in the liquid, and agitation of the liquid. Four systems were studied: naphthalene‐benzoic acid, beta‐naphthol‐naphthalene,p‐xylene‐m‐xylene, water‐sodium chloride.The experimental results show that separation improved with increasing agitation, increasing coolant temperature, decreasing drum speed, and decreasing liquid impurity. For the naphthalene‐benzoic acid system, the major system studied, the maximum stage efficiency was 96%. The results indicate that the vigor of agitation and the drum coolant temperature are the two most important variables which affect the separation. It was possible to calculate the rate of solid deposition with heat transfer data.The rotary drum crystallizer appears to be an effective device for industrial separation of or

ISSN:0001-1541    

DOI:10.1002/aic.690100124

出版商:American Institute of Chemical Engineers    

年代:1964

数据来源: WILEY

ISSN:0001-1541    

DOI:10.1002/aic.690100125

出版商:American Institute of Chemical Engineers    

年代:1964

数据来源: WILEY

ISSN:0001-1541    

DOI:10.1002/aic.690100126

出版商:American Institute of Chemical Engineers    

年代:1964

数据来源: WILEY

ISSN:0001-1541    

DOI:10.1002/aic.690100127

出版商:American Institute of Chemical Engineers    

年代:1964

数据来源: WILEY

ISSN:0001-1541    

DOI:10.1002/aic.690100128

出版商:American Institute of Chemical Engineers    

年代:1964

数据来源: WILEY