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Register a new userA Kinetic study of dissolution of Iron and Titanium from Syrian basalt at different conditions
دراسة حركية لانحلالية الحديد و التيتانيوم من البازلت السوري في شروط مختلفة
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درست في هذا البحث درجة انحلالية الحديد و التيتانيوم في فلز البازلت السوري باستخدام حمـض كلور الماء، و حمض الكبريت، و مزيج حمض كلور الماء مع الميتانول، و مـزيج حمـض الكبريـت مـع الميتانول. ثم درس تأثير درجات الحرارة، و زمن التهضيم، و تركيز الحموض في الانحلالية، و تـم تثبيـت نسبة صلب إلى سائل عند 02.0=L/S و سرعة التحريك. و وجد أن استخدام مزيج حمض كلور الماء: ميتانول بنسبة CH3OH:HCl) V:V(50:100 ،يؤدي إلى الحصول على أفضل انحلالية لكل من الحديد و التيتانيوم؛ و ذلك عند تهضيم الفلز مدة سـت سـاعات عند الدرجة C ˚100 حيث تركيز كل من حمض كلور الماء و الميتـانول علـى الترتيـب: ,[CH3OH[ 92M.0=11M]=HCl [فكانـت نـسبة انحلاليـة الحديـد و التيتـانيوم فـي الـشروط المـذكورة، . %63.19 ،%75.53.
The dissolution rate of Iron and Titanium from Syrian basalt rock was studied by hydrochloric acid, sulfuric acid, mixture of hydrochloric acid methanol, sulfuric acid methanol solutions. The effects of temperature, time of digesting and concentrations of acids have been investigated, the ratios of solid to liquid and stirring speed were constant (S/L=0.02). It has been clear that when the mixture of hydrochloric acid and methanol (100:50(V:V) HCL:CH3OH) was used, the best dissolution for both iron and titanium was obtained when we digested the rock and it took 6h at 100 ˚C where as the concentration of hydrochloric acid and methanol were [HCl]=11M, [CH3OH] =0.92M, the resulting ratios of dissolution of iron and titanium in the mentioned conditions were 75.53%, 63.19 % respectively.
References used
Chen, Y., Williams, J. S., Campbell, S. J., and Wang, G. M. (1999). Increased dissolution of Ilmenite induced by high-energy ball milling, Volume 271, Issue 1-2, p 485-490
Cservenyak, G. H., Kelsall, and Wang, W. (1996). Reduction of Ti(IV)species in aqueous sulfuric and hydrochloric acids: Titanium speciation, 41(4), p563-572
Fouda, M. F. R., Amin, R. S., Saleh, H. I., Labib, A. A., and Mousa, H. A. (2010). Preparation and characterization of Nanosized Titania prepared from Beach Black Sands Broad on the Mediterranean Sea Coast in Egypt via Reaction with Acids, Journal of Basic and Applied Sciences, 4(10), p4540-4553
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The research was conducted at the poultry farm in Kharabo, Faculty of
Agriculture, Damascus University. 1080 chicks of Lohman hybrid, one day old,
distributed randomly and equally into six different groups, G1….G6 (180
chicks/ group) with three re
plicates in each group (60 chicks per replicate).
Chicks in all groups were fattened for 42 days on Diets composed of vegetarian
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G1 were fed on the main diet without adding iron or copper. The chicks in G2
and G3 were fed on the main diet mixed with 80 and 160 ppm of iron
respectively. The vhicks of G4 were also fed on the main diet mixed with 8 ppm
of copper. The Chicks of G5 and G6 were fed on the main diet mixed with iron
and copper (80 and 8 ppm) and (160 and 8 ppm), respectively. Results
demonstrated that adding iron and/or copper to the broiler diet was safe for
chickens up to 42 days of age and did not affect significantly on carcass
parameters. Supplementation of broiler diet with 8 ppm of copper was not
associated with accumulation of copper in the tissues of liver, leg bone, breast,
and thigh. Adding 80-160 ppm of iron to the broiler diets was not associated
with high level of accumulation of iron in the tissues of breast and thigh but
with high concentrations (p < 0.05) in the tissues of liver and leg bone.
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