Monitoring of DOTP production via esterification with inline
DOTP is mainly manufactured by direct esterification, and many parameters need to be monitored simultaneously to guarantee high product quality and high reaction throughput— something that is not possible with traditional laboratory analysis.
Monitoring of DOTP production via esterification with inline
DOTP is mainly manufactured by direct esterification, and many parameters need to be monitored simultaneously to guarantee high product quality and high reaction throughput—something that is not possible with traditional laboratory analysis.
Pseudo-homogeneous kinetic modeling of dioctyl terephthalate
As a green plasticizer, the industrial production of dioctyl terephthalate (DOTP) is still facing the problem of high energy consumption. To optimize the production process and reactor, it is essential to understand the kinetic behavior of reaction system. In this work, the two-step consecutive esterification of solid terephthalic acid (PTA) and 2-ethylhexanol (2-EH) catalyzed by tetrabutyl
Monitoring of DOTP production via esterification with inline
Dioctyl terephthalate (DOTP) is one of the most used non-phthalate plasticizers in the polymer industry since it possesses good plasticizing properties yet does not jeopardize human health. DOTP is manufactured by direct esterification, and many parameters need to be monitored simultaneously to guarantee high product quality and high reaction throughput—something that is not possible with
Monitoring of DOTP production via esterification with inline
Monitoring of DOTP production via esterification with inline analysis Polyvinyl chloride (PVC) is a plastic polymer which is seen all over in everyday life – in pipes, bank cards, sports equipment, and even furniture. It is generally rigid, but can be made into more flexible forms with the addition of . A plasticizer is plasticizers
- How to monitor multiple parameters in DOTP production?
- A more secure, effective, and quicker method to concurrently monitor multiple parameters in DOTP production is with inline process analysis using reagent-free near-infrared spectroscopy (NIRS).
- What are the production methods of DOTP?
- The production methods of DOTP can generally be divided into three categories: 1) direct esterification of terephthalic acid (PTA) with 2-ethylhexanol (2-EH) ; 2) alcoholysis of polyethylene tere-phthalate (PET) with 2-EH ; 3) transesterification of dimethyl terephthalate (DMT) with 2-EH .
- How is DOTP produced?
- At present, the industrial production of DOTP by direct esteri-fication of PTA and 2-EH is usually carried out in a reactive distil-lation unit, due to the reversibility of the esterification reaction. In this process, a great deal of heat is consumed to ensure the gener-ated H2O in the reactions can be removed in time.
- Can tetrabutyl titanate accelerate the esterification rate of DOTP industrial production?
- Therefore, intensifying the first-step reaction, such as strengthening the liquid-solid mass transfer and water removal, is important to accelerate the whole esterification rate of DOTP industrial production. A kinetic study of the esterification of PTA and 2-EH by using tetrabutyl titanate as catalyst was performed.
- What is DOTP & how does it work?
- DOTP is mainly manufactured by direct esterification. Many process parameters need to be monitored simultaneously to guarantee high product quality and high reaction throughput—something that is not possible with traditional laboratory analysis.
- How to optimize the production process of Dioctyl terephthalate (DOTP)?
- As a green plasticizer, the industrial production of dioctyl terephthalate (DOTP) is still facing the problem of high energy consumption. To optimize the production process and reactor, it is essential to understand the kinetic behavior of reaction system.
