The invention discloses a method for producing
potassium titanate in a large scale by utilizing an ore-grade
titanium-containing compound, belonging to the technical field of preparation of
inorganic materials. The method is mainly characterized in that: the ore-grade
titanium-containing compound and
potassium-containing compound are directly taken as raw materials, the raw materials are mixed to be uniform, the mixture is subjected to high temperature calcining (
microwave calcining preferably) for 30 minutes to 24 hours at the high temperature of 900-1300 DEG C,
whisker potassium titanate or flaky
potassium titanate can be prepared by one-step synthesis, and the
potassium titanate obtained by
calcination is smashed, thus the finished product is obtained. A cheap ore-grade
titanium-containing compound is taken as a reaction
raw material, no fluxing agent is used in a preparation process, and no
magnesium-containing
raw material is used in preparation of the flaky
potassium titanate, thus the
raw material cost is greatly reduced, the procedure is simplified, and the
corrosion loss of equipment in a high temperature alkali environment is reduced, thus being more applicable to
mass production; and meanwhile, calcinations under the
catalysis of
microwave is utilized to speed up synthetic reaction of the potassium
titanate, and the production efficiency is improved.