IN 300 is a new catalyst with first kind non-acid and non-alkaili, which can be applied for producing DOTP (Dioctyl Terephalate)  and DOP (Dioctyl phthalate) in esterification reaction. it has its own characteristics, which are detailed below:

 

1. IN-300 catalyst this material only will be added less than 0.3% in the esterification reaction of synthesize DOP and DOTP. Time for reaction is shorter than other catalysts;

 

2. IN-300 catalyst is good at stability, not easy to get poisoned; even the water content of TPA or Phthalic anhydride reaches to 8%, the effect of IN-300 Catalyst won’t be affected.

 

3. utilizing rate of TPA and Phthalic anhydride is almost 100 percent in the process of esterification reaction, and excessive isooctanol can be recycled completely; the oucome of reaction is light yellow liquid, its acid value is below 0.5 mg/g;

 

4. the catalyst also can catalyze its esterification reacion of fatty acid and aromatic acid  high efficiently.

 

5. None "three wastes” will be discharged during the reaction, and it can not erode the facilities and equipments.