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5 WAYS PHASE TRANSFER CATALYSTS RESHAPING TODAY'S POLYESTER INDUSTRY


Phase Transfer Catalysis is widely utilized as a part of the commercial manufacturing of chemicals of more than 10 billion dollars per year. PTC is likewise utilized as a part of prevention of pollution, its treatment and for the impurities removal in waste and product streams. The use of PTC with inorganic base i.e. NaOH can easily replace the use of risky as well as expensive bases like sodium methylate, sodium amide or sodium hydride etc. In fact, PTC inorganic base systems are beneficial as well as very effective. The demand of PTC is increased in the chemical industries due to several convincing advantages it provides, especially for lessening the cost in making organic chemical as well as pollution prevention.


PTC is also widely utilized in polyester industry. It has a lot of amazing benefits due to which, it is reshaping today’s polyester industry. Regardless of market conditions, process scale or country of manufacture, the ability of increase the isolated yield of a reaction is always a basic method in order to decrease its cost, prevent pollution and improve the raw material usage. PTC provides higher isolated yield because of the higher selectivity achieved by taking advantage of the high flexibility in designing the microenvironment of the reaction. This is one of the best benefits of PTC which makes it more important in polyester industry.


A phase transfer catalyst is easily dissolvable in 2 solvents, and it conveys anions of inorganic salts into natural solvents and returns them to the water phase. The Phase Transfer Catalysis reaction is generally carried out with easy work-up procedures and under mild conditions, which is also a main reason behind its increased industrial uses.


Despite wide-scale applications of PTC reactions in the presence of a base, the mechanism of these reactions is not clear. PTC systems operate via different mechanisms in the presence of bases (Makosza, 1977). However, it is an established fact that in most cases it does not involve the transfer of OH- by the quat as a Q+OH- complex, since Q+OH is highly hydrophilic and has very limited solubility in the organic phase. Alkylation reactions that have been proposed to be mediated through a Q +OH- intermediate probably involve reaction between Q’OH- and the organic substrate at the liquid-liquid interface. Due to this, it is quite important in polyester’s industry.


The scope of PTC can be figured out by considering the scope of reactions to which PTC can be applied. The 1700 patents along with 8000 publications on PTC are in around 30 noteworthy reactions classifications. This scope of PTC utilization is amazingly wide and is one of the most important reasons behind the increased demand of PTC in polyester’s industries and its great importance.


In the past, each successful PTC application stimulated research which in turn led to additional applications and improved processes. There is every reason to believe that this trend will continue, at least for the near future. This is also one of the reasons that it holds great importance in the polyester’s industry.

Is Phase Transfer Catalysts Are Reshaping Today’s Polyester Industry, How?  

Phase Transfer Catalysis is extensively utilized as a portion of the commercial manufacturing of chemicals of more than 10 billion dollars p...

Is Phase Transfer Catalysts Are Reshaping Today’s Polyester Industry, How?  

Phase Transfer Catalysis is extensively utilized as a portion of the commercial manufacturing of chemicals of more than 10 billion dollars p...

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