In this study, direct evidence for chemical penetration into petroleum coke particles during activation is presented. addition, the porosity development was directly related to sulphur loss and phase behaviour of species present. Petroleum (petcoke, 6 wt.% sulphur) activated with KOH NaOH at temperatures between 400 800°C. The CS bonds were broken before 400°C in presence 500°C NaOH. Electron ...

Effect of hydrothermal treatment, acid washing and annealing temperature on the structure and morphology of TiO2 nanotubes during the formation process was assessed. X-ray diffraction, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and energy dispersive X-ray spectroscopy analysis were conducted to describe the formation and characterization of the structure and morp...

• Bioleaching is good at deep As removal from regenerated product of spent SCR catalyst. results in a maximum 53.1% high pulp density 10%. Corresponding residue 174 mg/kg below limiting value 200 attained. Strong activation occurs by bioleaching along with removal. Cells secrete an amount cysteine accounting for and activation. Selective catalytic reaction (SCR) widely used flue gas denitrifica...

Effluents from dye and dyeing industries constitute serious environmental threat attracting attention. Activated carbon prepared guinea corn husk maize cobs waste materials was used as a precursor to prepare activated carbon. Variable ratios of the constituent ashes ( 1:1, 1:3 3:1) were prepared. The ashed in murfle furnace at 400-500oc for 2.5 h. Acid activation carried out by washing with HCl...

Chemical changes and shelf-life of common carp (Cyprinus carpio) surimi prepared by conventional washing method and solubilization by acid and alkali processes were investigated during 5 months of storage at -18 °C. Results showed that surimi produced with acid and alkaline solubilization is significantly higher yield than the conventional surimi. Protein solubilization by using acid and alkali...

background: the monoclonal antibody, c595, against breast cancer cell line was conjugated with cyclic anhydride gadolinium-diethylenetriaminepenta-acetic acid (gd-cdtpaa) to produce gd-dtpa-c595 and used as specific breast cancer cell line (mcf-7) contrast agents in magnetic resonance imaging (mri).  methods: after incubation of breast cancer cell line (mcf-7), with different contrast agents (g...

In this work, the effects of temperature, acid concentration, and mechanical activation on dissolution of ilmenite were studied using the statistical design of experiment technique. Mechanical activation was carried out using a planetary ball mill in dry mode, and the resulting structural changes were characterized by the particle size analysis, specific surface area measurements, and X-ray dif...

Though an important and chronic source of dyes released to the environment, determination release that occurs during household or industrial washing is usually disregarded. The main scope this study reveal extent dye through washing, understand if modification cotton fabrics with cationic polymers could reduce it. Modified fabrics, dyed Acid Blue 281 (AB) by a mixture reactive Novacron Yellow S...

BACKGROUND AND OBJECTIVES   Patients with anaphylactic transfusion reactions require washed platelet concentrates (PCs) for subsequent platelet (PLT) transfusions. New PLT additive solutions (PASs) contain substances that might be beneficial for the preservation of PLT function during storage. This study compares the quality of PLTs washed and stored with T-Sol, Composol or SSP+. STUDY DESIGN...