The invention discloses methods for digesting and detecting
titanium concentrate,
titanium slag or
titanium carbide slag. The method for digesting the titanium concentrate, the
titanium slag or the
titanium carbide slag comprises the following steps of: weighing a sample to be detected, placing the sample to be detected in a container, washing a container wall of the container by using an appropriate amount of deionized water, and shaking the container to make the sample be suspended and dispersed; adding
hydrofluoric acid and
hydrochloric acid into the container, closing the container, and performing first-time
digestion reaction by using
microwave; after the first-time
digestion reaction is finished, cooling the container, and when the temperature of the container is reduced to 90 to 95 DEG C, emptying
acid gas and a volatile
reaction product in the closed container; opening the container, adding
hydrogen peroxide while the container is hot, and then immediately closing the container; performing second-time
digestion reaction by using the
microwave; and after the second-time digestion reaction is finished, cooling the container to
room temperature, directly diluting by using water and fixing the volume, and thus obtaining a solution of the sample to be detected. According to the methods, the sample is completely digested, and the accuracy, precision, working efficiency and analysis speed of detection data can be improved.