Preparation method of low-oxygen metal titanium powder

The invention provides a preparation method of low-oxygen metal titanium powder, and belongs to the technical field of metal titanium powder preparation. The preparation method of the low-oxygen metal titanium powder comprises the following steps that chloride of rare earth metal and titanium dioxide are mixed and subjected to compression molding, and a mixed briquette is obtained; and carrying out metal thermal reduction on the mixed briquette by using alkali metal, and carrying out vacuum distillation on the obtained reduction product to obtain the low-oxygen metal titanium powder. The preparation method provided by the invention does not need chlorination treatment, and is low in cost and simple to operate. Compared with the prior art, the method has the advantages that titanium dioxide is reduced into metal titanium in one step, only 10-48 hours are needed, the technological process is greatly shortened, the production efficiency is improved, and meanwhile, low-oxygen metal titanium powder with the oxygen