The esterification of 1,4-butanediol with acrylic acid catalyzed by sulfuric acid in the absence of solvent was studied in a batch stirred reactor. Experiments were carried out with different acid/ alcohol mole
Acrylic acid 1.2 CAS No. 55927-87-2 1.3 CID 6581 1.4 EINECS 201-177-9; 618-347-7; 611-106-7; 616-286-0; 618-348-2 1.5 Molecular Formula C3H4O2 1.6 Inchi InChI=1S/C3H4O2/c1-2-3(4)5/h2H,1H2,(H,4,5) 1.7 InChkey NIXOWILDQLNWCW-UHFFFAOYSA-N 1.8 Canonical Smiles C=CC(...
Typical commercial glacial acrylic acid contains 98.0% by wt acrylic acid, max of 0.5% by wt water and 0.045-0.055 mg/kg (ppm) of inhibitor ...Grade: Technical (esterification and polymerization grades); glacial (97%)... 200 ppm /monomethyl ether of hydroquinone/ is needed /as inhibitor/...
weight of (meth)acrylic acid to be esterified. Examples of suitable esterification catalysts include sulfuric acid, phosphoric acid, pyrophosphoric acid, p-toluenesulfonic acid, styrene-divinylbenzenesulfonic acid, chlorosulfonic acid and chloroformic acid. Sulfuric acid and p-toluenesulfonic acid are ...
The methyl acrylate was synthesized from acrylic acid and methanol by using strong-acid cation exchange resin,Amberlyst-15,as catalyst and the hydroquinone as polymerization inhibitor.Effects of molar ratio of methanol to acrylic acid,amounts of catalyst and reaction temperature on esterification rate ...
acrylic acid esters simultaneously, thereby keeping the concentration of sulfuric acid constant in the esterification solution; separating the resulting effluent esterification solution into an organic solvent layer and an aqueous layer by decantation; recycling the aqueous layer containing sulfuric acid to ...
A process for converting a salt of a hydroxycarboxylic acid to an unsaturated carboxylic acid, or esters thereof. The process involves converting an ammonium salt of a hydroxycarboxylic acid in aqueous solution to a corresponding hydroxycarboxylic acid and ammonium cation in aqueous solution; and sep...
Oxidative esterification of methacrolein to methyl methacrylate over Pd-Pb/Al_2O_3 catalysts; Pd-Pb/Al_2O_3催化剂上甲基丙烯醛氧化酯化合成甲基丙烯酸甲酯 3. Research progress in catalysts for manufacture of methyl methacrylate by one-step conversion of methacrolein; 甲基丙烯醛一步法制甲基丙烯酸甲...
polymers Article Hydrothermal Synthesis of Cellulose Nanocrystal-Grafted-Acrylic Acid Aerogels with Superabsorbent Properties Xuehua Liu 1, Rue Yang 2, Mingcong Xu 1, Chunhui Ma 1, Wei Li 1,2,3,* , Yu Yin 1, Qiongtao Huang 2, Yiqiang Wu 3, Jian Li 1 and Shouxin Liu 1,* 1 Key ...
The acidic esterification catalyst used is preferably sulfuric acid. Other useful esterification catalysts include organic sulfonic acids, for example methanesulfonic acid, benzenesulfonic acid, p-toluenesulfonic acid or dodecylbenzenesulfonic acid and/or acidic ion exchangers. The esterification catalyst is ...