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首页> 外文期刊>RSC Advances >Microwave-assisted seed preparation for producing easily phase-transformed anatase to rutile
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Microwave-assisted seed preparation for producing easily phase-transformed anatase to rutile

机译：微波辅助种子制备法，用于制备易于相变的锐钛矿为金红石型

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Titanium dioxide, as one of the most important optical materials, is usually manufactured by the hydrolysis of titanyl salts, in which the seeds are a key to affect product properties. In the sulfate process, hydrolysis normally leads to anatase which is then converted to rutile in a high-temperature calcination with the help of a crystal transforming agent. In this work, the initial seeds were prepared through microwave heating and then the seeds were introduced to the hydrolysis of dilute titanyl sulfate solution. The results showed that the hydrolysis product had a narrower particle size distribution compared with traditional processes, and it was much more easily converted to rutile product under low-temperature calcination in the absence of a crystal transforming agent. The microwave effects on the seed preparation conditions were evaluated, and the kinetic behavior of the seeds in hydrolysis was also studied.
机译：作为最重要的光学材料之一，二氧化钛通常通过钛氧基盐的水解制得，其中的种子是影响产品性能的关键。在硫酸盐法中，水解通常会产生锐钛矿，然后在高温煅烧中借助晶体转化剂将其转化为金红石。在这项工作中，通过微波加热制备初始种子，然后将种子引入稀硫酸氧钛溶液的水解。结果表明，与传统方法相比，该水解产物具有较窄的粒度分布，并且在不存在晶体转化剂的情况下，在低温煅烧下其更容易转化为金红石产物。评价了微波对种子制备条件的影响，并研究了种子在水解中的动力学行为。

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