交易价格： 面议
类型： 专利
技术成熟度： 通过小试
专利所属地：US美国
专利号：5772724
交易方式： 完全转让 许可转让 技术入股
联系人： 四川钒钛产业技术研究院
所在地：四川攀枝花市
项目简介：
The present invention provides a method for producing high-purity titanium from titanium sponge obtained by the Kroll process in which a core of the cylindrical lump of titanium sponge obtained with a weight less than 20-30% of that of the cylindrical lump is separated by cutting off from the lump a bottom portion, a top portion and a peripheral portion, and the core is cut by a press into grains of specific size, which are melted into ingot or refined by reaction with iodine. The high-purity titanium thus produced contains less than 300 ppm of oxygen and less than 10 ppm each of iron, nickel, chromium, aluminum and silicon, the balance being titanium and inevitable impurities; or less than 200 ppm of oxygen and less than 1 ppm each of iron, nickel, chromium, aluminum and silicon, the balance being titanium and inevi table impurities. Thus the invention provides titanium mate rials of very high purity suitable for thin film deposition as wiring of LSIs from titanium sponge obtained by the Kroll process.
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