Copper Deoxidation Kinetics Utilizing Carbon Monoxide

نویسنده

  • R. J. ANDREINI
چکیده

Gaseous deoxidat ion of l iquid copper with carbon monoxide as the r educ ing gas has been examined . The r educ ing gas was in t roduced at a s u b m e r g e d or i f ice so that well c h a r a c te r ized , s ingle bubbles were formed. The deoxidat ion k ine t ics a r e d e t e r m i n e d p r i m a r i l y by the m a s s t r a n s p o r t of oxygen in l iquid copper. No effect of su l fur over the range of 10 to 200 ppm was observed . I n c r e a s i n g the t e m p e r a t u r e f rom 1113 to 1173~ s l ight ly inhibi t the k ine t ics of oxygen r emova l .

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Catalytic Synthesis of Methanol from Hydrogen and Carbon Monoxide on a Copper-zinc Oxide Supported Catalyst

Most kinetic studies of methanol synthesis over Cu/ZnO catalysts have been carried out using mixtures of carbon monoxide and hydrogen. But in some cases (1) the synthesis gas has also contained carbon dioxide (2). Power rate laws as well as complicated rate expressions have been proposed over the years. The detailed kinetics of the surface processes is virtually unknown. With the exception, per...

متن کامل

Effects of Temperature and Particle Size Distribution on Barite Reduction by Carbon monoxide Gas

In this research, a mineral barite powder was reduced by carbon monoxide gas and the effects of reduction time and temperature was investigated as well as barite particle size. Results showed that the best result would be feasible when the barite particle sizes are between (-70 +100) in mesh scale. The barite reduction could reach the maximum level (98%) after reduction by carbon monoxide at 85...

متن کامل

Adsorption of Lead and Copper by a Carbon Black and Sodium Bentonite Composite Material: Study on Adsorption Isotherms and Kinetics

The efficiency of using a composite of carbon black and sodium bentonite in treating drinking water contaminated with lead and copper ions was analysed. The effects of pH, contact time, concentration and adsorbent dosage using an adsorbent composite of 20 % sodium bentonite and 80 % carbon black were studied. The adsorption data was tested with respect to Langmuir, Freundlich and Temkin iso...

متن کامل

Transition metal/fluorite-type oxides as active catalysts for reduction of sulfur dioxide to elemental sulfur by carbon monoxide

Reduction of SO, by CO to elemental sulfur on fluorite oxide and transition metal/fluorite oxide composite catalysts is discussed within the redox framework. The oxygen vacancies on the fluorite oxide are active catalyst sites and their creation is a key step to initiate the redox reaction. Transition metal/fluorite oxide composites demonstrate a strong synergism for the reaction. A reduction k...

متن کامل

Evaluation of Deoxidation Process in Medical Grade of 316L Stainless Steel

In the present work, deoxidation and refining of 316LVM steel (Low carbon Vacuum Melted) during the vacuum induction melting process was studied. This grade of stainless steel is one of the most import...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2007