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
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
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