Process for controlling heat equipment in titanium reactor

At present, there are only two industrial methods: the HDH method and the sodium method. However, the sodium method titanium plants have been closed down one after another, so far only the HDH method is still used in the industrial production of titanium rod manufacturers. The centrifugal atomization method and the gas atomization method are mainly used to produce (spherical titanium powder or) spherical titanium alloy powder, but the production volume is not large and can be considered as mass production. The various production methods are summarized below.

In the reduction process of magnesium tetrachloride, there is always a by-product-the outer titanium powder. This kind of titanium powder accounts for a few per cent of sponge titanium products, and its quantity is considerable. Titanium powders with a particle size of less than 0.83mm can be used directly. The sponge titanium produced by the magnesium reduction-vacuum distillation process is poor in quality due to long-term high-temperature sintering, and the proportion of titanium alloy powder is correspondingly small. Therefore, the titanium-magnesium tetrachloride reduction method is not a good method for preparing titanium powder, and only the by-product-the outer titanium alloy powder is obtained.

Grinding is a key step in the production of powdered titanium by the sodium reduction method. The sodium reduction product is a mixture of metallic titanium and NaCl. On the surface of gold and sodium-an extremely covering-layer of NaCl, titanium will not be contaminated by impurities during the grinding process, and most of the heat generated during grinding will be absorbed by NaCl and will not cause Titanium overheats and catches fire, thereby avoiding oxidation of the product. In addition, NaCl can also promote the pulverization of titanium and act as a pulverizing medium. Various mills can be used as grinding equipment.

The process of leaching, washing and drying is basically the same as the process of producing sponge titanium. Because powdered titanium has greater activity, the acid concentration in the leaching solution should be lower. Generally, 0.5%-1.0% hydrochloric acid concentration aqueous solution can be used for leaching. When drying, the temperature should be as low as possible while preventing fire.
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