产品列表

所有产品 (A~Z)

联系我们

 

 销售热线:

 0571-87977725

 0571-87977729

 

 电子邮箱:

 hzckmy@gmail.com

 

 

 

DZL-5/DZL-5G

Molecular Distillation/Short Path Distillation

Design

Different from the traditional wiped film evaporator design, the condenser is located inside the short path evaporator body. 
 

Operation

Feed liquid is admitted into still under high vacuum, immediately spread into a very thin film and forced quickly down the evaporation surface. Heated walls and high vacuum drive the more volatile components (distillate) to the external condenser as the less volatile components (residue) continue down the cylinder. The resulting fractions, thus separated, exit through individual discharge outlets. Depending on application, the desired product is either the distillate or the residue fraction. Small amounts of condensable low MW compounds collect in cold trap upstream of vacuum system. For high solvent loads, an optional external condenser may be installed immediately downstream of the still.
 

Particular features

Continuous distillation process.
Very low operating pressures up to 0.1Pa (100Pa=1mba). (The considerably lower pressure in the short path evaporator is obtained by the short distance for the vapours on their way from the evaporator surface to the condenser. )
The very low operating pressures ensure very low distillation temperatures and therefore a very gentle distillation is possible.
Short residence time. (Thanks to the short residence time, the low evaporation temperature and the immediate cooling of the concentrate, thermal stress and decomposition of the product can be minimized.)
High evaporation rates.
 

Fields of application

For the thermal separation of high molecular and high-boiling products.
For heat sensitive materials.

Parameters

Model DZL-5 DZL-5-G
Evaporator material S316L stainless steel GG-17 
high borosilicate glass
Condenser material S316L stainless steel
Operating temperature RT-300 RT-200
Evaporator inner diameter(mm) 80
Evaporation area() 0.05
Throughput(ml/H) 800-1500 400-1200
Vacuum degree(Pa) 0.1-500(Depends on the selection of the
 vacuum system and the material properties)
Dimension(mm) 1100*1000*1700

Primary evaporation:          Model: CW Series & CF Series:     Designed for material ethanol content >90%

Extraction Pretreament:     Model: BML Series:                       Designed for material ethanol content: 5%~10%

Extraction :                            Model:DZL Series :                         Designed for material ethanol content: <1%