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Influence of B2O3 on Viscosity of High Ti-bearing Blast Furnace Slag

机译：B 2 O 3 对高含钛高炉矿渣粘度的影响

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The influence of B_(2)O_(3) on the viscosity of high Ti-bearing BF slag is studied under Ar atmosphere from 1773 K (1500°C) to about 1593 K (1320°C). The results show that the addition of B_(2)O_(3) can decrease the viscosity of high Ti-bearing BF Slag containing UPC, consequently improve its fluidity. With the existence of 1.5% UPC, when the content of B_(2)O_(3) increased from 0 to 4.1%, the volume fraction of perovskite decreased from 7.7% to 1.6% at 1610 K. Meanwhile, the liquidus temperatures decreased from 1619 K to 1613 K. At a lower temperature, B_(2)O_(3) was easy to form a eutectic and decreased the viscosity of molten slag. At a higher temperature, some tetrahedron [BO_(4)]~(5–) changed into triangle [BO_(3)]~(3–) which would disintegrate the chains/molecules of molten matrix and decreased its viscosity.
机译：研究了B_（2）O_（3）对高Ti含量高炉渣炉渣粘度的影响，温度范围为1773 K（1500°C）至1593 K（1320°C）。结果表明，添加B_（2）O_（3）可以降低含UPC的高含钛高炉渣的粘度，从而改善其流动性。在存在1.5％UPC的情况下，当B_（2）O_（3）的含量从0增加到4.1％时，钙钛矿的体积分数在1610 K时从7.7％下降到1.6％。同时，液相线温度从B_（2）O_（3）在1619 K到1613 K之间。在较低的温度下，B_（2）O_（3）易于形成共晶并降低熔渣的粘度。在较高的温度下，一些四面体[BO_（4）]〜（5–）变为三角形[BO_（3）]〜（3–），这会分解熔融基质的链/分子并降低其粘度。

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