Date of Award


Document Type


Degree Name

Master of Science (MS)


Chemical Engineering


the rate heat of oxidation for Ugalte la 90* C were studied as function© of tesaoeratura* content and prior ceddatioa. The oqpariMRltai procedures Involved passing oxygon throu^x a prepared eanple la an adiabatic calorimeter and aaaaurlag the t®aperatare riee and oxygen eoasuaed foe* a given time*

¥h« heat of oxidation asrooared to increase vith incroaninr, tersnerature. At 20* C, value© vera sporadic and ramiod down to 23.550 ^j|2^83n2 compared to values of 35,000 + 9,6GG and 89,000 ♦ 9,600 at 60* and 90* respectively. The low values at 20* C are attributed to the oocurraae© of increased nhysioal adsorption ZyQA'bS.V’B to Ctl£S%Lco3. X^JftCtiOKk •

At 20* C the smallest particle aia* of 0.125 to 0,036 inches gave low values for the heat of reaction (23,500 and 2^,800 calories per &rm aole osygan), while larger site© produced values greater than 70,8*»Q, The lor values are attributed to greater physical adsorption in the «*+i'*<**• sines corresponding to Increased KOTC®SF« ^ti2l6 • -'V ■ *» Jtjt

«*+i'*<**• sines corresponding to Increased KOTC®SF« ^ti2l6 • -'V ■ *» Jtjt !«■ J~h .-» ,-. r-. J| M a- A' n j, j~> -vioul > JTL ft - -