Regeneration method of deactivated titanium silicate molecular sieve TS-1

The invention discloses a regeneration method of a deactivated titanium silicate molecular sieve TS-1. The regeneration method comprises the following steps that (1) pretreatment is performed, specifically, calcinations is performed on the deactivated titanium silicate molecular sieve TS-1 at a high temperature; (2) a regeneration hydrolysate is prepared, specifically, a silicon source, a titaniumsource, a template agent and deionized water are mixed and hydrolyzed according to a molecular molar ratio of (30 to 32) to (0.5 to 1) to (7 to 9) to (600 to 650) to obtain the regeneration hydrolysate; and (3) the deactivated titanium silicate molecular sieve TS-1 after the pretreatment in the step (1) is added into the regeneration hydrolysate in the step (2), and after uniform stirring, crystallization treatment and post treatment are performed to obtain a regenerated titanium silicate molecular sieve TS-1. By adjusting the use amount and proportion of the silicon source, the titanium source and the template agent