The invention belongs to the technical field of
organic synthesis, and particularly relates to a catalyst-free
continuous production method of chlorotert-
butane, which comprises the following steps: adding diluted
hydrochloric acid as a starting solution into the
tower kettle of a
reactive distillation tower, and heating the
tower kettle to boil until
reflux exists at the tower top; the method comprises the following steps: adding tert-butyl
alcohol and concentrated
hydrochloric acid into a mixing preheater for preheating, then continuously feeding from a feed port of a
reactive distillation tower until the tower top temperature is 45-48 DEG C, the side
discharge port temperature is 50-52 DEG C and the tower kettle temperature is 96-105 DEG C, and carrying out
reflux according to a
reflux ratio of (1.5-3): 1; and continuously extracting crude chlorinated tert-
butane from a side
discharge port of the tower, cooling, neutralizing,
drying and filtering to obtain the chlorinated tert-
butane. According to the invention, through the
integrated design of the mixing preheater and the
reactive distillation column, especially by utilizing the reactive
distillation technology to continuously remove the product, the
chemical equilibrium limitation of the traditional intermittent process is successfully broken, the
raw material conversion rate is obviously improved, and meanwhile, the
green production targets of flow simplification,
energy consumption reduction and three-waste emission reduction are realized.