求翻译：二氧化钛的化学性质极为稳定，主要用于涂料、塑料和造纸等领域。我国在这方面虽然进行长期攻关，但在钛铁矿氯化、四氯化钛精制等过程中一些关键技术未能获得突破。本论文主要讨论了硫酸法、氯化法生产钛白粉的工艺流程、反应原理、原材料消耗，以及该种方法的优、缺点。硫酸法是将钛铁粉与浓硫酸进行酸解反应生产硫酸亚钛，经水解生成偏钛酸，再经煅烧、粉碎即得到钛白粉产品。此法可生产锐钛型和金红石型钛白粉。同时介绍了钛白粉的新的生产工艺—盐酸法，介绍了该法的工艺流程，指出该工艺可生产金红石型钛白粉。是什么意思？

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The titanium dioxide chemical property is extremely stable, mainly uses in domains and so on coating, plastic and papermaking.Our country in this aspect although carries on the long-term attack, but in processes and so on in ilmenite chlorination, titanium tetrachloride purification some key technol

Extremely stable chemical properties of titanium dioxide, mainly for paint, plastics and paper, and other areas. Although in this regard for long-term research in China, but in titanium chloride iron ore, Titanium tetrachloride in the refining process, such as a number of key technology breakthrough