Scandium extraction from silicates by hydrometallurgical process at normal pressure and temperature
نویسندگان
چکیده
منابع مشابه
Amorphization and decomposition of scandium molybdate at high pressure
The behavior of negative thermal-expansion material scandium molybdate Sc2sMoO4d3 is investigated at high pressure (HP) and high temperature (HT) using x-ray diffraction, Raman spectroscopy, and scanning electron microscopy. The compound exhibits unusually high compressibility (bulk modulus ,6 GPa) and undergoes amorphization at 12 GPa. On the other hand, in situ laser heating of amorphous samp...
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آنزیم تریپسین در شرایط قلیایی ناپایدار می باشد .و فعالیت پروتئولیتیکی تریپسین منجربه خود هضمی آن در جایگاههای خاصی می گردد. بنابر این آنزیمی با ناپایداری بالا محسوب میگردد. در سالهای اخیر موفق شدند که با ایجاد تغیرات شیمیایی با اضافه کردن فلزات خاص ، کلسیم و یا عمل استیلاسیون منجر به افزایش پایداری آنزیم تریپسین گردند. مطالعات در حال حاضر نشان می دهد که تریپسین استیله شده فعالیت آنزیمی خود را ...
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ژورنال
عنوان ژورنال: Journal of Materials Research and Technology
سال: 2020
ISSN: 2238-7854
DOI: 10.1016/j.jmrt.2019.11.012