The invention discloses a special 
distillation tower for the pure preparation of 
pivaloyl chloride, which comprises a 
thermometer, a rectification 
tower, a V-shaped connector, a 
test tube, a rubber interface and a 
titration port. A 
distillation head is installed under the 
thermometer, and a 
distillation head is installed under the distillation head  A rectification 
tower is installed, a round-bottom 
beaker is installed under the rectification tower, and a V-shaped connector is installed on the right side above the round-bottom 
beaker, and a condensation 
pipe is installed under the right side of the V-shaped connector, and the inside of the condensation 
pipe  A 
test tube is installed on the right side, a water inlet 
pipe is installed under the right side of the 
test tube, and a rubber interface is installed on the right side of the water inlet pipe, a fixing ring is installed under the right side of the rubber interface, and a 
titration port is installed on the right side below the fixing ring,  A receiving 
bottle is installed under the 
titration port, glass beads are installed under the interior of the rectification tower, and a 
metal wire is installed under the glass beads.  In the present invention, by installing 
inert materials inside the rectification tower, the gas solution can be purified to achieve precision purification.