| abstract |
A kind of method and apparatus for being used to precipitate the material of dissolving from solution, it includes reducing fines therein.In one embodiment, this method includes：Solution is introduced into reactor, make the species precipitate that is dissolved in solution under the first reaction condition into crystallization, reaction condition is adjusted to the second reaction condition from the first reaction condition, keep reaction condition for the second reaction condition to dissolve crystallization subgroup, and reaction condition is adjusted to the first reaction condition from the second reaction condition.In one embodiment, the equipment includes retort, recirculation path and at least one sour syringe for being configured to acid metering be added in recirculation path in solution stream. |