Su steel smelting has two advantages:(1) During the pouring process there is strong oxidation which results in separation of slag and iron the wrought iron being soft in structure and containing large amounts of oxide impurities and also silicon manganese and carbon.

蘇鋼冶煉高明的地方主要有二點(diǎn)：一是料鐵組織疏松色色色色色色色色色播播，含有大量的氧化夾雜亚洲福利小视频，硅、錳538视频在线免费观看、碳含量也比較高黄页网站免费49vvcom，煉的時(shí)候氧化劇烈，造成一定的渣精品国产免费污网站入口、鐵分離国产无码专区视频。

This research is a new low cost method of producing abrasive grit. It is to put the iron ore concentrate, coal powder, hydrated limed and addition agent together to make coal mixed pellet in prior which is rapidly auto-reduced in high temperature and kept about 10min above 1350℃, and then furnace cooled. The 2CaO·SiO2 of slag phase change、volume increase and natural bloom in reduction process. Finally we obtain no-slag abrasive grit through screen separation , in which the iron yield can be above 90%,the sulfur content can be below 0.05% and carbon content is lower than 4.0%.

本研究是一種全新的低成本生產(chǎn)鐵粒的方法国产精av，它是將鐵精粉色婷婷综合在线、煤粉、消石灰和添加劑預(yù)先制成球團(tuán)99久久99这里只有视频精品视频，在高溫下迅速加熱還原国内激情网站，在1350℃以上保溫10分鐘后隨爐冷卻，渣相中2CaO·SiO2在冷卻過程中發(fā)生相變www,se，體積膨脹而自然粉化久久国产AV人人做人人爽，通過篩分便可以得到不含爐渣的鐵顆粒，鐵的收得率在90%以上久久艹视频、S≤0.05%国产精品视频久久、C在4.0%左右。

The results show that magnesium and aluminum theoretically can be thoroughly dissolved from the blast furnace slag by diluted sulfuric acid pretreatment on the blast furnace slag even if the ended concentration of sulfuric acid is 0.001mol/L, while the titanium basically could not be dissolved. Therefore it is theoretically indicated that the separation of the magnesium and aluminum from the slag with the least titanium loss by diluted sulfuric acid pretreatment is possible.

結(jié)果表明97国产一区二区精品久久呦，采用稀硫酸對(duì)高爐渣進(jìn)行預(yù)處理啊v在线观看亚洲国产，當(dāng)終酸濃度即使為0.001mol·l~(-1)時(shí)，鎂1024在线观看精品视频、鋁理論上也能全部被酸浸出操视频网站在线免费观看，而鈦在0.001 mol·l~(-1)的酸濃度條件下基本不被浸出，從而從理論上可以說明對(duì)高爐渣采用稀酸預(yù)處理可以很好的將爐渣中的鎂黄色网站三级免费一品、鋁等雜質(zhì)分離出來五月天97超碰精品在线，而鈦極少被浸出。