酸性烧结矿(acid sinter) 碱度(CaO/SiO2)小于0.5的烧结矿，由铁精矿或富矿粉不加或少加熔剂烧结而成。它的含铁矿物为磁铁矿、赤铁矿，主要黏结相矿物为铁橄榄石(2FeO·SiO2)，钙铁橄榄石(CaOFeOSiO2)。红热的酸性烧结矿在冷却过程中不发生自然粉化。它的机械强度较高，但FeO高，还原性差，软熔温度低；单独使用此种矿入炉冶炼，需加入大量石灰石；而且还原性差，导致高炉产量低、焦比高。现代高炉除某些特殊情况外，已不使用此种烧结矿。
介绍了安钢进行低硅酸性烧结矿的试验及生产。
The experiment and production of low silica acid sinter in ANGANG were presented in this paper.
针对东烧以利用自产浮选精矿为主，进行生产酸性小球团热烧结矿的改造，进行了小球团烧结工艺的制粒研究。
Point at the Dong Anshan sinter plant will modifying sintering production to acid MPS hot sinter with self- mined flotation concentrates, the granulating research of MPS process was conducted.
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