Smelting Daily Question 11.10 (English Version)

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1. Please hide your replies; editing after posting is ineffective! Delete directly without hiding! 2. Method to hide: http://bbs.hcbbs.com/thread-492556-1-1.html 3. 10 points or 1 charm for a perfect answer, 1 point for a completely wrong answer, and 5 points for an answer that is somewhere in between. One word in one blank: In Iron Making, according to the reducing agents used, direct reduction technology is commonly classified into two types: gas reduction processes and reduction processes with solid reducing agents. According to the types of reduction reactors used, it is also classified into four main processes --- fluidized ______ , shoft furnace, retort, rotary ______ processes. The answer of this subject lies in the next subject. The answer of the last subject: Extraction of solid minerals by an aqueous solution flowing through and ______ (dissolving) them from their host rock has become of increasing importance in solution mining. This includes ______ readily soluble evaporite minerals ______ metallic ore minerals requiring leaching reactions with acids or other chemical li*viants and, often, o*dation of the mineral. leaching both and