Báo cáo vật lý: "PREPARATION OF SELENIUM-DOPED ACTIVATED CARBON AND ITS UTILIZATION FOR IMPROVING THE QUALITY OF USED COCONUT OIL" pps

... The MAC (2.5% (w/w) Se /activated carbon) was prepared and can be applied to improve the quality of used coconut oil. Treatment of used coconut oil with MAC was effective in regenerating the ... between the oil and blonde was performed by centrifugation at 2000 rpm for 15 min. The fresh coconut oil of 2.28 l was obtained. 2.5 Treatment of Used Co...

Ngày tải lên: 07/08/2014, 14:20

... band in the region around 3446 cm –1 indicates the adsorbed water (H 2 O) in the pores of the solid. The shift of the band at ~ 660– 690 cm –1 indicates the interaction between ZrO 2 and the ... adsorption bands corresponding to the saponite structure are identified in the region of 1012.69 cm –1 and 661 cm –1 as the vibrations of the tetrahedral an...

Ngày tải lên: 07/08/2014, 14:20

... - Recognize their dependence on each other and willing to work together to define common objectives, share risks and benefits and make the relationship work. - Proper handling and temperature ... requirement and consumer demand for higher food quality and safety: - Supply chain should be adequately simple, flexible, more direct, straightforward and well coordinated to...

Ngày tải lên: 21/06/2014, 04:20

... portion of the H 2 O 2 is used to oxidise the AC, there are fewer hydroxyl radicals available to oxidise the dye. Second, the formation of a surface oxygen group because of the reaction between the ... compared to the modified and the heat-treated modified AC. Decolourisation of RO16 by the Cu catalyst increases in the presence of H 2 O 2 and UV-light....

Ngày tải lên: 07/08/2014, 14:20

... breaking of some of the porous wall of activated carbon, thus blocking the pores. It was noticed that D-A method was usually used to evaluate the micropores of activated carbon. The D-A equation ... activated carbon with wide size range of micropores. 3.3 Surface Morphology of Activated Carbon Scanning electron macrographs for the external mo...

Ngày tải lên: 07/08/2014, 14:20

... determine how the major components of the amalgam (Cu, Zn and Hg) diffuse into the structures of the teeth. Curson and Crocker 20 determined the concentrations of Zn and Pb in the pulp of the teeth. ... Elements in the Pulps of Healthy and Carious Teeth The pulp contains the nerves and blood vessels of the teeth. The blood vessels feed the...

Ngày tải lên: 07/08/2014, 14:20

... with increasing amounts of HCl or the presence of large amounts of C1 – ions. Therefore, for the partial dehydration of PEO units, the volume of the hydrophilic part of the micelle decreases. ... greatly influence the characteristics of the resulting materials as they generally control the formation of micelles during the synthesis. 8 Hence, many aspect...

Ngày tải lên: 07/08/2014, 14:20

... to enhance the interaction between the clay and the polymer. 9 The surface of the MMT is commonly modified with a cation exchange technique to expand the basal spacing and make the layered ... agent can further expand the d-spacing of the OMMT, which could favour the intercalation and exfoliation of silane-treated OMMT in the E matrix. It is also believe t...

Ngày tải lên: 07/08/2014, 14:20

... by the cutting edge. In addition, the effects of other milling parameters were studied; cutting speed (m/min), axial depth of cut (mm) and feed rate (mm/tooth). Results indicate failure of the ... kali ganda berbanding dengan tidak menggunakan Prestasi Mata Alat Karbida 78 4. Barbezat, G. (2005). Advanced thermal spray technology and coating for lightweight engine block...

Ngày tải lên: 07/08/2014, 14:20

... one considers the combined benefits of economics, selectivity and safety, UHP emerges as one of the best sources of oxygen atoms for a variety of organic oxygenation reactions. The compounds ... 5 (24%) and 6 (29%) that were identified by comparison with the mp, IR and NMR of the authentic samples. Compound 9 showed IR bands at 1780 cm –1 due to the presence...

Ngày tải lên: 07/08/2014, 14:20