中文摘要：

高碳铬铁无渣脱碳法可避免有毒铬渣的排放,利用微波场可快速加热粉状物料的特性,在高碳铬铁粉中配加一定比例的碳酸钙粉,可实现高碳铬铁粉快速固相脱碳.实验结果表明：配加一定比例的碳酸钙粉,不会影响内配碳酸钙高碳铬铁粉混合物料的微波加热特性;提高混合物料的脱碳摩尔比、微波加热温度和保温时间,有利于高碳铬铁粉的深度脱碳,但相应加剧脱碳铬铁粉的氧化程度.合适的固相脱碳条件为：脱碳摩尔比1∶1.0-1∶1.4,微波加热温度1100℃,保温脱碳时间60 min.在上述条件下可使碳质量分数为8.16%的高碳铬铁粉脱碳至3.91%-1.71%,脱碳率为52.08%-79.04%.

英文摘要：

Non-slag decarburization of high-carbon ferrochrome can avoid toxic chromium slag emissions. Solid phase decarburization of high-carbon ferrochrome powder containing a certain proportion of calcium carbonate powder can be achieved using the characteristics of rapid heating powder materials in a microwave field. Experimental results show that adding a certain proportion of calcium carbonate powder does not affect the microwave heating characteristics of high-carbon ferrochrome powder. Deep decarburization of high-carbon ferrochrome powder is realized at a higher decarburization molar ratio of the mixed materials,a higher decarburization temperature,and a longer decarburization time,but the oxidation degree of decarburized ferrochrome powder is also increased accordingly. Under the suitable solid-phase decarburization conditions of the carburization molar ratio of 1 ∶ 1. 0-1 ∶ 1. 4,the microwave heating temperature of 1100 ℃ and the decarburization time of 60 min,the mass content of carbon in the decarburized materials is3. 91% to 1. 71%,and the decarburization rate is 52. 08% to 79. 04%.