So, this work was investigated to study chemical conversion of biodiesel derived raw glycerol and lauric acid to triglycerides of lauric acid via esterification reaction over cellulose sulfuric acid as an efficient, biodegradable and recyclable solid acid catalyst. Synthesized catalyst was characterized by...
Phosphate rock is mixted withsulfuric acidand with revycled first-wash acid in a premixer. 磷矿 一个预混合槽中与 以及循环回的第一洗涤 进行混合。 Ethyl lauryl alcohol respectively react with hydrobromic acid to product bromohydrocarbon,sulfuric acidfor catalyst。
Aluminium sulfate is made by reacting bauxite with sulfuric acid: Al2O3 + 3 H2SO4 → Al2(SO4)3 + 3 H2O Sulfuric acid is used for a variety of other purposes in the chemical industry. For example, it is the usual acid catalyst for the conversion of cyclohexanoneoxime to caprolactam, ...
Preparation and esterification performance of sulfonated coal-based heterogeneous acid catalyst for methyl oleate production A series of coal-based heterogeneous acid catalysts are prepared by partial carbonization followed by sulfonation approach and the performances in esterifi... H Yu,S Niu,C Lu,.....
Acetates were made from cotton and wood cellulose by a "fibrous" (heterogeneous) esterification involving sulfoacetic acid or perchloric acid catalyst in acetic acid-acetic anhydride; the final acetyl contents (10鈥 41%) were attained ... RE Glegg,D Ingerick,RR Parmerter,... - 《Journal of...
investigated by using single-factor experimental method.The optimum conditions was found as follows: 1.64%catalyst based on benzoic acid,molar ratio of benzoic acid to n-butyl alcohol 1:2.0,and reaction time was 3.5 h.Under the optimum conditions,the esterification of n-butyl benzoate was about ...
2.2.3.1 Homogeneous catalyst Several homogeneous acid catalysts have been studied, but sulfuric acid and hydrochloric acid (HCl) have received the most attention [140,161,162] because they can improve the rate of both transesterification (Fig. 4(a)) and esterification reactions (Fig. 4(f)) [...
Acid-activated pillar bentonite as a novel catalyst for the esterification of high FFA oil The esterification reaction of methanol with oleic acid or high acid content refined palm oil catalyzed over sulfuric acid-activated pillar bentonite clay ... S Jeenpadiphat,DN Tungasmita - 《Powder Technolog...
Isocyanic acid and pentafluoroguanidine reacted in the presence of a catalyst to form a 1:1 adduct, bis(dinuoramino)fluoraminornethyl isocyanate (1), and a 2:1 adduct (2). The products obtained from the reactions of 1 with ethyl alchol, ... WC Firth,S Frank,EJ Schriffert - 《Jour...
SO2 is oxidized with oxygen on a heterogeneous catalyst - vanadium pentoxide contact - to SO3 and subsequent absorbed in ~98,5%wt sulfuric acid giving oleum which is rediluted with water down to 98.5%wt. Therefore this process typically produces sulfuric acid of 98.5% w/w concentration or ...