07-02-2019 дата публикации
Номер: US20190038993A1
Принадлежит:
The present disclosure discloses a sub-boiling distillation equipment capable of efficiently purifying a raw acid. The sub-boiling distillation equipment is made up of a feeding part, a condensing part, a heating part, a pure acid guiding part, a pure acid receiving part and a tail acid collecting part. The tail acid part is always kept in a normal temperature state, thereby ensuring that tail acid are not simultaneously heated and ensuring purity of distillates. Meanwhile, a controllable PID heating manner is adopted, so as to ensure accuracy of a heating temperature ±0.1° C. 1. A sub-boiling distillation equipment for purifying raw acid , comprising:{'b': 11', '12', '13', '14', '15', '16, 'a feeding part (), a condensing part (), a heating part (), a pure acid guiding part (), a pure acid receiving part () and a tail acid collecting part ();'}wherein the sub-boiling distillation equipment is an integrated closed system;{'b': 13', '131', '132', '131', '3', '132', '3', '132, 'the heating part () is composed of a heating zone main body () made of a quartz material and/or PFA/PTFE, and a heating jacket () coated outside the heating zone main body () to heat the heating zone main body (); the heating jacket () is electrically connected with a control circuit () for controlling on-off of the heating jacket ();'}{'b': 12', '131', '121', '122', '122', '121, 'the condensing part () is arranged above the heating zone main body () and comprises a cooling tower () and a condensation cavity (); the condensation cavity () is a tapered concave structure, and is seamlessly connected with the cooling tower ();'}{'b': 14', '141', '121', '142', '143, 'the pure acid guiding part () comprises a pure acid receiver () provided below the cooling tower (), a pure liquid diversion pipe () and a final liquid outlet ();'}{'b': 15', '151', '143', '152, 'the pure acid receiving part () comprises a pure liquid receiving bottle () connected with the final liquid outlet (), and a receiving bottle ...
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