Application of preferential crystallization for racemic compound integrating thermodynamics, kinetics and optimization 6

... typical shape of racemic compound system, just the more favorable racemic compound system for mandelic acid and unfavorable racemic compound system for ketoprofen From the binary phase 163 diagram, ... supercooling for the preferential crystallization for ketoprofen and the nucleation of enantiomer and racemate of ketoprofen may be easy to occur On the othe...

Ngày tải lên: 14/09/2015, 14:02

... 1.88E-07 2.06 E+ 04 1.65E+ 04 24. 43 9.66E+08 8.94E-08 1 .43 E+ 04 2.21E+ 04 23.21 9.61E+08 8.61E-08 1.20E+ 04 3.30E+ 04 22 .40 4. 98E+08 3.25E-08 9.18E+03 4. 24E+ 04 21.70 106 Table 5 .4 Estimated (RS)-MA ... growth rate and nucleation rate of S enantiomer and racemate were calculated for mandelic acid and ketoprofen The Laplace transform analysis (s plane method) was use...

Ngày tải lên: 14/09/2015, 14:02

... weight mean size of final crystals for the seed size 1 25- 150 µm was 50 2µm, which is little smaller than that for seed size 2 252 45 m Therefore, the crystal seed size 2 25- 2 45 m is suitable for the current ... preferential crystallization of mandelic acid As the mean size was circa 230 µm for the seed and 52 7 µm for a target product, the operation time can be calcu...

Ngày tải lên: 14/09/2015, 14:02

... nucleation and growth kinetics for the (S)-MA and (RS)-MA 10 1 5.4 .1. 1 Crystal suspension density and supersaturation .10 1 5.4 .1. 2 Crystal size distribution (CSD) 10 4 5.4 .1. 3 Kinetic ... separation of mandelic acid .12 4 6.3.2 Preferential crystallization operation for mandelic acid 12 7 6.3.2 .1 The progression of preferential crystallization 12 7 6.3.2.2...

Ngày tải lên: 14/09/2015, 14:12

... show the typical shape of racemic compound system, just the more favorable racemic compound system for mandelic acid and unfavorable racemic compound system for ketoprofen From the binary phase ... measurements of melting temperatures of racemic species and of their corresponding enantiomers has traditionally been used for identifying the nature of racemic...

Ngày tải lên: 14/09/2015, 14:12

... 32 .0 37 .0 37 .5 -1 average 12. 83 12 .33 11.00 11.17 average 12.00 12 .33 12.00 11.67 average 10.50 10.67 12 .33 12.50 difference 2 .33 1.66 1 .33 1 .33 86 For the samples 0.94 mole fraction of (S)-Kp and ... responses for three-level experiment for (RS)-Kp Volume ratio of Temperature Stirring rate Cooling rate solvent (water : ethanol) -1 total 38 .5 37 .0 33 .0 33 .5 t...

Ngày tải lên: 14/09/2015, 14:12

... semi-cylindrical shape, and calculating the sap flux as the average of the measurements made at a height of m on a sample of ten trees at Carrasqueira and at a height of 8.5 m on seven We trees at the ... on accurate determinations of the tree sap flow, which requires determination of sapwood area, mean sapflux density and needle area in...

Ngày tải lên: 09/08/2014, 04:20

... cứu ứng dụng chế phẩm enzyme pectinex để thu nhận đờng chức FOS từ dịch mía VậT LIệU V CứU PHƯƠNG PHáP NGHIÊN 2.1 Vật liệu Dịch mía giống mía chín trung bình F156 trồng vụ 2005 - 2006 đợc sử dụng ... hoạt tính 1ml dung dịch chế phẩm enzyme l 58,1 U/ml Do chế phảm pectin ex Ultra SP-L chứa enzyme -D frutofuranosidase, sử dụng chế phẩm n y để thu nhận...

Ngày tải lên: 29/08/2013, 08:16

... Adsorption of toxic chemicals in aqueous supernatant from Step 2)Chemical Oxidation or Total Mineralization of the the Organics 3)Deep UV Photooxidation of the Organics 4)Photocatalytic oxidation of ... in both dispersed and heterogeneous forms (supported) tsnl Advantanges of this Approach•The light absorption and energy levels of the semiconductor valence and conduction...

Ngày tải lên: 14/03/2014, 20:20

... to status of coral health, destroyed and disappearance of some coral sites in coastal waters of Vietnam RESULTS AND DISCUSSIONS 4.1 - Distribution of coral reefs in coastal waters of Vietnam sea ... techniques for coral mapping in coastal waters of Vietnam seas” the scientific report in the Joint Russian-Vietnamese project of the Institute o...

Ngày tải lên: 26/03/2014, 14:07

... output response of the model On this basis, we solve the object identification problem in the form of the time series estimation problem based on measured random data of controlled object The recommended ... the time response of the object as a random data series Estimation of the object model from output response data series Suppose the controlled object has...

Ngày tải lên: 28/03/2014, 13:20

... output response of the model On this basis, we solve the object identification problem in the form of the time series estimation problem based on measured random data of controlled object The recommended ... solve the directive object identification problem generally and effectively under the random noise The optimal model of object determined by the estimation...

Ngày tải lên: 28/03/2014, 13:20

Ngày tải lên: 28/03/2014, 15:20

Ngày tải lên: 28/03/2014, 15:20

... epidemiological features, application of diagnostic kit for detection of trypanosomiasis caused by Trypanosoma evansi in cattle and buffaloes in a few northern mountainous provinces and recommendation for ... effective and safe in treating trypanosomiasis in cattle and buffaloes 22 + Examination and treatment for tryp...

Ngày tải lên: 28/04/2014, 13:08