Titanium is "bio-friendly". In human body, it can resist the corrosion of secretions, is nontoxic, and is suitable for any sterilization method. Therefore, it is widely used to manufacture medical instruments, artificial hip joints, knee joints, shoulder joints, costal cartilage joints, skulls, movable heart valves and bone fixation clips. When new muscle fiber rings are wound around these "titanium bones", these titanium bones begin to maintain the normal activities of the human body.
Titanium is widely distributed in human body, and the content of titanium in normal human body does not exceed 15mg per 70kg body weight. Its function is not clear. But it has been proved that titanium can stimulate phagocytes and enhance immunity.
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Uses of titanium metal:
China's proven titanium resources are distributed in 2 1 provinces (autonomous regions and municipalities directly under the central government) * *108 mining areas (Figure 3.5. 1 and Table 3.5.4). The main producing area is Sichuan, followed by Hebei, Hainan, Guangdong, Hubei, Guangxi, Yunnan, Shaanxi, Shanxi and other provinces (regions).
Pure titanium dioxide is a kind of white powder and an excellent white pigment with the trade name "titanium dioxide". It has both the covering performance of lead white and the lasting performance of zinc white. Therefore, people often add titanium dioxide to paint to make high-grade white paint; Used as a filler for paper pulp in paper industry; textile industry
As a matting agent for man-made fibers; Used as additives in glass, ceramics and enamel industries to improve their properties; Used as a catalyst in many chemical reactions. With the development of chemical industry, titanium dioxide and titanium series compounds, as fine chemical products, have high added value and attractive prospects.
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