硅鈣熱力學(xué)計(jì)算

1、唐山市豐潤(rùn)區(qū)京豐硅鈣廠 聯(lián)系人：王廠長(zhǎng) 電話：86 傳真：86 地址：河北省唐山市豐潤(rùn)區(qū)新軍屯歡喜莊東偏坨地圖 郵編：063000 企業(yè)網(wǎng)站：唐山市豐潤(rùn)區(qū)京豐硅鈣廠 caos+al2o3s=caoal2o3s g0=-18000-18.83t 2all+1.5o2(g)=al2o3s g0=-1682900+323.24t mgg+0.5o2g=mgos g0=-732700+205.99t 2caos+sio2s=2caoal2o3s g0=-118800-11.3t sis+o2g=sio2s g0=-907100+175.73t c

2、aos+2al2o3s=cao2al2o3s g0=-16700-25.52t caos+6al2o3s=cao6al2o3s g0=-16380-37.58t 化學(xué)方程式關(guān)系式標(biāo)準(zhǔn)吉布斯自由能g02cao(s)+2mgo(s)+si(s)= 2caosio2(s)+2mg(g)2439500-247.55t3497200-313.56tcao(s) + 6mgo(s) + 4al (l)= 6mg(g) + cao2al2o3 (s)261013700-614.98tcao(s) + 18mgo(s) + 12al (l)= 18mg(g) + cao6al2o3 (s)6183074820

3、-1805.96t3497200-313.56tcao2al2o3(s)+ 12mgo(s) + 8al(l) = 12mg(g) + cao6al2o3(s)4122061120-1190.98t 表1 真空硅熱和鋁熱還原煉鎂標(biāo)準(zhǔn)狀態(tài)下的熱力學(xué)數(shù)據(jù)table 1 the thermodynamic data of producing magnesium by silicothermic and aluminothermic reduction in standard condition方程式編號(hào)化學(xué)反應(yīng)方程式標(biāo)準(zhǔn)吉布斯自由能標(biāo)準(zhǔn)狀態(tài)下反應(yīng)溫度/k11775.4021568.8831585.6641648.3551702.60表2 真空鋁熱還原煉鎂真空條件下的反應(yīng)溫度table 2 the reduction temperature of silicothermic and aluminothermic reduction in different degree of vacuum方程式編號(hào)實(shí)際吉布斯自由能反應(yīng)壓力時(shí)，反應(yīng)開(kāi)始溫度/k1.33pa13.3 pa10 pa11011.581109.341096.232841.16929.50917.