The invention belongs to the technical field of
titanium product production, particularly relates to a clean production method of
titanium dioxide and
titanium yellow
powder, and aims to solve the problems that an existing
titanium yellow powder production method generates a large amount of
waste gas and waste water, is low in
resource utilization rate, pollutes environments, and the like. The cleaning production method includes: mechanically activating fine
titanium powder, performing normal-pressure
acid hydrolysis, performing thermal
filtration and extraction, performing titanium liquid
hydrolysis, washing,
drying, calcining to prepare the
titanium yellow powder, performing pressurized acid leaching to prepare the
titanium dioxide, and the like. The clean production method has the advantages that a
titanium yellow powder production process, a
titanium dioxide production process, a
hydrochloric acid concentration process and the like are combined effectively, production waste acid can be recycled basically, the
discharge of the
waste gas, the waste water and industrial residues is reduced, and production cost and
energy consumption are reduced; industrial production of the titanium yellow powder and the
titanium oxide can be achieved by the method, and the method is
environmentally friendly, capable of saving energy and reducing consumption, capable of saving production cost and good in
economic benefits.