Search results
Results From The WOW.Com Content Network
The effectiveness of a green solvent is quantified by calculating the "E factor", which is a ratio of waste materials to desired product produced through a process. E f a c t o r = Mass of all waste materials Mass of desired product {\displaystyle Efactor={\frac {\text{Mass of all waste materials}}{\text{Mass of desired product}}}}
Ethanol (also called ethyl alcohol, grain alcohol, drinking alcohol, or simply alcohol) is an organic compound with the chemical formula CH 3 CH 2 OH. It is an alcohol, with its formula also written as C 2 H 5 OH, C 2 H 6 O or EtOH, where Et stands for ethyl. Ethanol is a volatile, flammable, colorless liquid with a characteristic wine-like ...
Ethylene vinyl alcohol (EVOH) is a formal copolymer of ethylene and vinyl alcohol.Because the latter monomer mainly exists as its tautomer acetaldehyde, the copolymer is prepared by polymerization of ethylene and vinyl acetate to give the ethylene vinyl acetate (EVA) copolymer followed by hydrolysis.
The following compounds are liquid at room temperature and are completely miscible with water; they are often used as solvents. Many of them are hygroscopic . Organic compounds
One of the main environmental benefits of Green PE is the sequestration of roughly 2.15 tonnes of CO 2 per tonne of Green Polyethylene produced, which comes from the CO 2 absorbed by the sugar cane while growing, minus the CO 2 emitted through the production process.
The results produce fibers that are screened and bleached for paper products. At these conditions, the lignin is dissolved in organic solvent and hemicelluloses are used to produce more organic solvent. Organic solvents are collected by separating water from the cooking liquor and then the lignin is precipitated by adding water, heat, and ...
After a long period in storage, the dense paint pigment and filler settles out over time and it can lose some of its solvent due to evaporation, becoming so thick and viscous that it does not flow properly when used. By the addition of more solvent, it can be diluted or re-dissolved to restore the paint to an appropriate consistency for use.
The suspension process is practiced by only a few companies because it requires a higher degree of production control and product engineering during the polymerization step. This process suspends the water-based reactant in a hydrocarbon-based solvent. The net result is that the suspension polymerization creates the primary polymer particle in ...