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lutec炼钢法在常压及80～85℃下，采用氯化物浓电解波产出99．99％高纯的铜粒和元素硫。澳大利亚一家独立的大公司最近的一项深入研究证明，按20，000t／a的生产能力，一座Intec法铜厂的投资大约为一般炼铜厂之半;按50,000t／a能力，运营费和投资大约都是一半。Intec法的花费，也大大优于可用性最佳的浸出／萃取／电积工艺。Intec法利用80～85℃下的多段逆流浸出，在常压下通入空气使铁成为针铁矿类化合物沉淀，随后两段净化过程分离除金属态及其他状态的各种杂质。净化后的氯化亚铜／氯化钠溶液进火隔膜电解槽，产出高纯的铜粒，电流密度1000～1500A／m2，无需通常的剥极板工序。电耗约为一般铜电解之半。产品适合于直接粉末冶金，将铜粒变成铜线或铜片。铜矿物不经窑炉而变成钢产品的全部工序，都已得到证实。
lutec steelmaking method at atmospheric pressure and 80 ~ 85 ℃, the use of concentrated chloride electrolysis produced 99.99% pure copper particles and elemental sulfur. A recent intensive study by an independent large Australian firm demonstrated that at an investment of 20,000 t / a, the investment in an Intec copper plant is about half that of a typical copper smelter; at 50,000 t / a capacity, operating costs and Investment is about half. The cost of the Intec method is also significantly better than the best available leaching / extraction / electrowinning process. Intec method using multi-stage countercurrent leaching at 80 ~ 85 ℃, air at atmospheric pressure to make iron into goethite precipitates, followed by two separate purification process in addition to the metal state and other impurities in various states. Purified cuprous chloride / sodium chloride solution into the fire diaphragm electrolyzer to produce high purity copper particles, the current density of 1000 ~ 1500A / m2, without the usual stripping plate process. Electricity consumption is about half of the normal copper electrolysis. Products suitable for direct powder metallurgy, the copper particles into copper or copper. The entire process of converting a copper mineral into a steel product without a kiln has been confirmed.