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1.
王世俊  董元篪 《铁合金》1996,(2):1-4,30
通过CaO-BaO-CaF2渣系和Fe-Mn-C-P熔体间的平衡分配实验,研究了BaO、CaF2、温度及锰铁中碳、锰含量对磷、锰平衡分配的影响,并计算了CaO-BaO-CaF2渣系的磷酸盐容量及P2O5的活度系数。  相似文献   

2.
通过CaO-BaO-CaF2渣系和Fe-Mn-C-P熔体间的平衡分配实验,研究了BaO、CaF2、温度及锰铁中碳、锰含量对磷、锰平衡分配的影响,并计算了CaO-BaO-CaF2渣系的磷酸盐容量及P2O5的活度系数.  相似文献   

3.
利用碳饱和溶解度数据处理的方法,计算了Fe-C-Cr熔体的热力学性质,得到了Cr对C的活度相互作用与温度的关系式,并分析了高碳铬铁转炉法吹炼中低碳铬铁时吹氧脱碳的热力学行为。  相似文献   

4.
成国光 《铁合金》1993,(5):27-29
本文在推导Fe-Mn合金熔体作用浓度计算模型的基础上,进一步计算了Fe-Mn-O系金属熔体平衡氧浓度,其结果与实验数据完全一致。  相似文献   

5.
Fe—C熔体与熔渣反应的电化学机理   总被引:1,自引:1,他引:0  
鲁雄刚 《化工冶金》1999,20(3):278-282
研究了含碳金属熔体与CaO-SiO2-Al2O3-FeOx熔渣体系反应的电化学机理,实验表明,在敞开体系中,无论金属熔体与熔渣之间是否存在电子导体,随着气相氧分压的降低,金属熔体的最终碳含量均逐渐增大,反应速率逐渐减小,但有电子导体贯穿反应体系时,熔体的最终远低于无电子导体的情况,其反应速率是后者的2-3倍,可以推断;氧离子在渣中的传递受控于电子的传递,电子导体的存在电子的传递提供了一条捷径,因而  相似文献   

6.
为了简化金属熔体热力学性质的计算过程和获得任意温度下熔体组元的热力学性质,基于一种碳饱和三元金属熔体热力学性质的计算方法,将三元金属熔体中碳的饱和溶解度分解为温度T和第三组元j的影响因子kj(或mj)两项,得到用T和kj(或mj)表示的组元活度相互作用系数的计算公式。用该公式可以计算出M—C-j三元熔体中组元j在任意温度下的活度相互作用系数,并可得到组元j的活度相互作用系数与温度的关系式。将计算的Fe-C—Cr体系和Mn—C—Fe体系的性质应用于热力学分析,获得了与实际生产比较吻合的结果。  相似文献   

7.
Mn—C—Si系锰基熔体的活度与自由能计算   总被引:1,自引:0,他引:1  
郭上型  董元篪 《化工冶金》1998,19(4):370-374
实验测定了1673K时Mn-C-Si系熔体中Si对C的溶解度的影响,计算得到锰基熔体中一阶和二阶活度相互作用系数以及C在Mn液中的标准溶解自由能值。  相似文献   

8.
根据含化合物的金属熔体结构的共存理论,推导了1673K下Fe-C-P、Fe-Mn-P、Fe-Si-P三元金属熔体作用浓度计算模型。计算的磷的作用浓度与相应的实测磷活度相符合,从而证明所得模型可以反映Fe-C-P、Fe-Mn-P、Fe-Si-P三元熔体的结构本质。同时模型揭示了C、Mn、Si的摩尔分数对磷的转换系数的影响规律。  相似文献   

9.
根据含化合物金属熔体的共存理论,推导出Mn-Si合金各组的作用深度计算模型,理论计算的MMn,Msi与实测的aMn,asi完全符合。文中还推导出Cr-Si合金熔体作用浓度计算模型,用其可预报该合金熔体Cr,Si组元在某温度下的活度值。  相似文献   

10.
根据含化合物金属熔体结构的共存理论制定了Fe- Ni- O、Ni- Co- O 和Fe- Cr- O 熔体的作用浓度计算模型,对其氧溶解度了分析,证明了氧溶解过程是一个复杂的化学反应过程,绝大部分氧参加形成金属氧化物的反应,极少部分氧以原子状态溶解于金属熔体中。  相似文献   

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13.
<正>Minmetals Resources acquired the world’s largest copper mine under construction for USD5.85 billion.One after another,listed companies Jien Nickle,China Molybdenum and Chihong Zinc and Germanium raised money to get involved in overseas mining projects…SOEs and private enterprises are engaged in a frenzy of overseas mine purchasing.A reporter with Economic  相似文献   

14.
正Judging from China’s copper consumption field,the biggest consumption unit is electric power,which accounts for 47%of total consumption;it is followed by light industry sector,including household electrical appliance,machinery,durable goods and hardware etc,which accounts for 22%of total consumption;followed by transportation field,  相似文献   

15.
正In 2013,the Central Geological Prospecting Fund(CGPF)Project newly discovered 15 ore fields,including 3 large above ore fields,and 5medium sized ore fields.The reporter learned from the recently published"Annual Report of Central Geological Prospecting Fund Project(2013)"that,from 2006 to 2013 the CGPF  相似文献   

16.
正This year,the investment growth rate of real estate industry continued to slow down,sold area of commercial housing also dropped significantly,which brought huge pressure to the domestic air conditioning manufactures.In the first half of the year,by relying on high growth in national financial expenditure,along with investment in public infrastructure  相似文献   

17.
正Kang Yi,Honorary Chairman of China Nonferrous Metals Industry Association,said recently at the Forum on Development of the Non-ferrous Metals Industry in Central and Western China held in Zhengzhou that,as more and more electrolytic aluminum factories in Xinjiang came into operation,the electrolytic aluminum output of Xinjiang had reached2,275,000 tons in the first 7 months this year,  相似文献   

18.
正"Xinjiang project has been completed according to schedule,but total completion and total start of production are two different concepts,after completion it still needs a gradual process of reaching production target."On the morning of November 3,Shenhuo Coal Industry and Electricity Power told investors the above statement on the investor interaction platform.  相似文献   

19.
正The reporter learned from Guangdong Province Precious Metal Transaction Center that in 2013the Center maintained healthy development momentum,and had become the second largest precious metal transaction platform in China in terms of market size;currently Guangdong is quickening steps of financial innovation for the Center,aiming to build a transaction center with international core competitiveness.  相似文献   

20.
正On May 22,Baotou Rare Earth Industry Cooperation Consultation MeetingProject Agreement-signing Ceremony was held in Ningbo,nearly 40 enterprises from Ningbo,Guangdong,Hunan,and Shanxi participated in project consultation.After multi-lateral communication,agreements were signed for a total of 7 rare earth projects successfully.  相似文献   

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