Proportions of various components in the mixed aromatics from the extraction unit
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In the extraction system, what is the typical proportion of each component in the mixed aromatics within the recycle tank for the recovered solvents?
It’s hard to say for sure! It’s determined by the properties of your raw materials!
Generally, benzene accounts for 90%-95%, with the remainder being toluene. Non-aromatics at zero point several
Could there be such a high level of benzene in Mixed Fragrance?
I can’t even answer your question – there are various types of extraction methods available, such as single-benzene extraction, double-benzene extraction, and triple-benzene extraction; it’s impossible to determine the proportions for just these three methods. Moreover, the product varies depending on the raw materials used, and it’s also necessary to consider the quality control of the residue oil. (I once had a client who required that the residue oil contain around 3% benzene.)
Isn’t the goal with raffinate oil to minimize the amount of benzene it contains?
The goal is to use as little benzene as possible, but ultimately it depends on the customer’s requirements, with the aim of satisfying them!
May I ask how many PPM of solvent remains in the product after it is extracted with residual oil and washed before leaving the device?
Looking at the control parameters of your extraction unit, it should not exceed 5 ppm under normal conditions; otherwise, too much solvent will be used, which is detrimental to both the downstream processes and the extraction unit itself.