For the production of cyclic carbonates from cycloaddition CO2 with epoxides, halogen pollution and product purity are two most common problems due to usage homogeneous halogen-containing catalysts such as ammonium salt alkali metal halide. Hence, development a novel, halogen-free efficient catalyst for synthesis high-purity is significant. Here, series acid–base bifunctional Ce1-xZrxO2 nanorod...

Developing highly efficient and recyclable catalysts for the transformation of toxic organic contaminates still remains a challenge. Herein, Titanium Carbide (Ti₃C₂) MXene modified by alkali treatment process was selected as a support (designated as alk-Ti₃C₂X₂, where X represents the surface terminations) for the synthesis of Pd/alk-Ti₃C₂X₂. Results show that the alkali treatment leads to the ...

Anhydrous sodium acetate will serve as the catalyst with maleic, chloro-maleic, and methylglutaconic anhydrides, giving yields of 0.54, 0.22, and 1.02 moles CO2 per mole of anhydride. The products of all these reactions are black and brown-black, are soluble in acetone, acetophenone, dioxane, and aqueous alkali and are insoluble in benzene, toluene, ether, chloroform and carbon tetrachloride, a...

 Biodiesel production from non edible oil through transesterification in batch reactor is highly effective technique for kinetic analysis. Temperature, molar ratio, mixing intensity and catalyst influenced the biodiesel production and kinetic. Alkaline catalysts are more efficient in nature as compare to acid and base catalyst. This paper particularly focuses on the impact of NaOH catalyst o...

Use of lime as construction material is limited mainly by low initial strength. These properties can be improved adding pozzolanic materials, but the evolution reaction usually needs older ages than 7 days. Alkali-activated or geopolymers, are good-performance materials that produced with residual waste. The combination traditional and new lead to uses mortars. This paper studies a lime/pozzola...

Cellulose fibers were converted into a valuable cellulose derivative, which is easily marketable with additional values. Alkali cellulose and carboxymethyl cellulose (CMC) is the most important cellulose derivatives. Alpha-cellulose was furnished as raw material for production of CMC, which is obtained from short cotton fibers, then purified. Alpha-cellulose is available in the international ma...