Plasticizers: Synthesis of phthalate esters via FeCl3
Recently, sulfamic acid has been used to prepare dibutyl phthalate (4d) using about 6% catalyst loading by weight of the total reaction mixture either at 180 °C [13] or microwave conditions [14]. Dioctyl phthalate (DOP) is synthesized by using methanesulfonic acid as a catalyst at 160 °C [15].
Advanced synthesis of dioctyl phthalate (DOP) and dibutyl
Advanced synthesis of dioctyl phthalate (DOP) and dibutyl phthalate (DBP) plasticizers: I. Comparison between aluminum oxide (Al2O3)and tetra-n-butyltitanate (TnBT) as esterification catalysts, II. Successful scaling up the bench scale to a semi-pilot scale Author (s): Usama F.Kandil, Nevien O.Shaker, Nahed M.Amer, Maher A.El-Sockary
Hydrogenation of dioctyl phthalate over a Rh-supported Al
A new catalyst was developed for selective hydrogenation of dioctyl phthalate (DOP) to produce the environmentally friendly plasticizer di(2-ethylhexyl)hexahydrophthalate (DEHHP) by incorporating rhodium via chemical fluid deposition into an aluminum-modified mesocellular foam (MCF). The Al-modified MCF cont
Bis(2-ethylhexyl) phthalate
DEHP is the most common phthalate plasticizer in medical devices such as intravenous tubing and bags, IV catheters, nasogastric tubes, dialysis bags and tubing, blood bags and transfusion tubing, and air tubes. DEHP makes these plastics softer and more flexible and was first introduced in the 1940s in blood bags.
Adsorption of Dibutyl Phthalate and Dioctyl Phthalate on Si
or DOP independently. DBP is the abbreviated name of dibutyl phthalate, which has a chemical formula given by C 6H 4(COOC 4H 9) 2, a molecular weight of 278.15 and a boiling point of 320 C. On the other hand, DOP is the abbreviated name of dioctyl phthalate, which has a chemical formula given by C 6H 4(COOC 8H 17) 2, a molecular weight of
- How is dioctyl phthalate synthesis reversible?
- The synthesis of dioctyl phthalate (DOP) involves mono- (2-ethylhexyl) phthalate (MEHP) formation firstly by phthalic anhydride (PA) with 2-ethyl hexanol (2-EH) and further esterification between MEHP and 2-EH to generate DOP, and the second reaction is reversible and the controlling step.
- How long does it take to convert phthalic anhydride to dioctyl phthalate?
- TnBT catalyst shows higher activity in esterification. A complete conversion of phthalic anhydride to dioctyl phthalate and dibutyl phthalate are achieved in 2 hrs in presence of TnBT.While in case of using aluminumoxide/sodium hydroxide catalyst system, it requires at least 3 hrs.
- Does TNBT catalyst help in esterification of phthalic anhydride and dibutyl phthalate?
- TnBT cata- lyst shows higher activity in esterification. A complete conversion of phthalic anhydride to dioctyl phthalate and dibutyl phthalate are achieved in 2 hrs in presence of TnBT. While in case of using aluminum oxide/sodium Plasticizer; Dibutyl phthalate; Dioctyl phthalate; Tetra-n-butyltitanate; Esterification.
- Which catalyst is used for esterification of phthalic anhydride with 2-ethylhexanol and 1-but?
- Esterification of phthalic anhydride with 2-ethylhexanol and 1-butanol has been investigated using aluminum oxide/sodium hydroxide catalyst sys- tem and tetra-n-butyltitanate (TnBT) catalyst for comparison. TnBT cata- lyst shows higher activity in esterification.
- What is dioctyl phthalate (DOP)?
- Dioctyl phthalate (DOP) is one of the most widely used plasticizers with low volatility and high plasticizing efficiency. Although new product like dioctyl terephthalate is more recommended, DOP accounts for more than half of the market share for plasticizers.
- Can sulfamic acid be used to make dibutyl phthalate?
- Recently, sulfamic acid has been used to prepare dibutyl phthalate (4d) using about 6% catalyst loading by weight of the total reaction mixture either at 180 °C or microwave conditions . Dioctyl phthalate (DOP) is synthesized by using methanesulfonic acid as a catalyst at 160 °C .
