摘要
钛渣冶炼经济品住的确定将为攀枝花钛渣的生产和经济利用提供重要指导作用。本文从钛渣酸解率和冶炼经济性对钛渣经济品位确定进行了分析和研究，结果表明：采用攀枝花矿冶炼钛渣，从钛渣酸溶性考虑，控制F值（即TFe（当量）／阿）在0．35以上可以得到较高的酸解率（高于95％），此时TiO2品位应低于73．22％；从冶炼经济性来看，渣中FeO含量为10．5％可认定为熔炼钛淹“经济临界点”。在上面分析基础上，使用攀枝花钛精矿和焦炭的主要成分，结合钛渣物相结构，根据等效法、物料平衡等方法，确定了攀枝花钛精矿冶炼钛渣的经济指标，即：钛渣品住控制范围在73．22％～73．38％，渣中FeO含量控制在10．5％-10．68％，渣中Ti203含量控制在8．38％～8．65％。最后，结合实际生产数据，采用FaetSage热力学软件，得到了采用攀枝花钛精矿冶炼生产品住为73．2％-73．4％钛渣的经济电耗指标为2329—2336kWh。
Economic analysis on slag grade and power consumption for smelting Panzhihua titanium concentrate would establish a fundamental for industrial operation. In this paper, the economic slag grade is evaluated from the acid hydrolysis rate and smelting parameters. The results show that the acidolysis rate from acid dissolution will be 95% or higher, when using Panzhihua titanium slag at the T Fe （equivalent）/TYi equal or higher than O. 35. At that point, the TiO2 grade should be equal or lower than 73.22%. Under this condition, the FeO content in slag should be around 10.5%. This phenomenon （ FeO content in slag at 10.5% ） is identified as the economic critical point for smelting titanium slag. Based on this, we use the chemical composition of the smelting raw materials, their phase structures, and the mass balance, combined with energy balance, and the economic index for smelting Panzhihua ilmenite concentrate is calculated and predicted. Thus, when the grade of titanium slag is in the range of 73.22% - 73.38%, the content of FeO would be 10.5 % -10.68%, while the content of Ti2 03 will be 8.38 % - 8.65 %. Furthermore, using FactSage thermodynamic software, combined with the actual production data, the economic power consumption for smelting Panzhihua titanium concentrate to produce 73.2% - 73.4% slag is evaluated in the range of 2329 to 2336kWh.
出处
《轻金属》
CSCD
北大核心
2015年第10期46-50,共5页
Light Metals
关键词
攀枝花钛精矿
钛渣
经济品位
电耗
Panzhihua titanium concentrate
titanium slag
economic grade
power consumption
