Product standard:

1. The tower I system strictly follows the national standard GB/T 17280,

Simultaneously compatible with ASTM D2892 standard;

2. The Tower II system strictly follows the national standard GB/T 17475,

Simultaneously compatible with ASTM D5236 standard;

Product Features

1. This device is easy to operate and control, and the sensors, valves, and other auxiliary equipment it is equipped with are all imported high-quality products,

Adopting a modular framework and being able to flexibly adjust the structure according to user requirements to meet their different needs;

2. The distillation apparatus has an automatic tracking function for distillation rate;

① The distillation apparatus has an automatic weighing function, which automatically records the weight of each fraction;

② Part of the distillation tower is subjected to atmospheric pressure and can be directly subjected to the next stage of vacuum distillation after cooling;

③ The distillation column temperature is controlled by tracking the distillation rate to ensure the accuracy of fraction cutting;

④ The vacuum degree can be automatically controlled, the vacuum pumping rate is fast, and the vacuum of tower I can reach below 1 mmHg;

⑤ The repeatability and reproducibility fully meet the standard requirements;

3. Distillation speed is continuously adjustable;

4. The receiving system has the function of automatic tube replacement when full and at the cutting point;

5. Equipped with automatic liquid level tracking function;

6. The distillation column adopts a double-layer glass vacuum silver plating structure to avoid heat loss during the distillation process;

7. The reflux ratio is continuously adjustable from 0 to 999;

8. The system automatically generates temperature, pressure, and other data curves, which can be maintained and printed;

9. The device has a power-off locking function and is equipped with an over temperature alarm system, which automatically cuts off the heating circuit at the same time as the alarm;

Circulating heating and cooling system:

a) Technical indicators of low-temperature bath: temperature range: -20~50 ℃; Temperature control accuracy: ± 1 ℃;

Cooling rate:> 1℃/min； Cooling power: 550W; Heating power: 400W.

b) Technical specifications for cryogenic bath: Temperature range: -58 ℃ to room temperature; Temperature control accuracy: ± 1 ℃.

c) Technical indicators of constant temperature bath: temperature range: 30-95 ℃; Temperature control accuracy: ± 1 ℃;

Heating power: 1000W

d) Distillation condenser refrigeration cycle bath, temperature range -10~60 ℃

Temperature control section:

a) The kettle temperature and tower temperature are controlled by electric heating.

b) The heating density of the kettle heating jacket is 0.5-0.6W/CM2.

c) Heating power of distillation kettle: 2KW.

d) Distillation column auxiliary heating, power: 500W.

e) K-type thermocouple sensors are used for measuring the kettle temperature and column temperature.

Tower I system:

Cutting temperature of tower I: initial distillation~400 ℃.

Distillation tower I: has 14-18 theoretical trays.

Distillation column of tower I: Column diameter of Φ 20mm, effective packing height of 570mm.

Distillation kettle volume of tower I: ≥ 10L (choose according to requirements) stainless steel material with slanted mouth for easy installation of temperature sensor.

Condensation area of tower I main condenser: 0.2m2

The reflux ratio ratio of tower I and the distribution time can be adjusted arbitrarily

Residual voltage of tower I system: 1 mmHg

Tower II system:

Tower II cutting temperature: 400-600 ℃ (depending on the properties of the oil)

Distillation kettle volume of tower II: 3L

The residual pressure of Tower II system can be stable: Below 0.1mmHg

Software testing system:

The equipment is equipped with temperature and vacuum detection devices, and can measure and calculate the temperature at atmospheric pressure corresponding to the boiling point of the distillate under a certain vacuum degree through software.