Presented herein is the integral valorization of residual biomass to film composites by their fractionation into building blocks in a multicomponent cascade isolation approach. First, pine cones were subjected alkaline pretreatment, followed soda pulping. Two different hemicellulose/lignin-based fractions recovered from extractives these treatments, with yield 19%. Then, chloride- and peroxide-...

The microscopic structure and pulping properties of palm fiber were explored. Soda cooking sulfate conducted compared in terms physical strength the obtained pulps. Sulfate pulp showed better performance than soda pulp, as indicated by 23% higher tensile index, 49% tear 36% burst index. To further elevate strength, long fibered (LFP), namely commercial softwood was mixed with at levels from 20%...

This study aimed to evaluate the properties of soda lignin obtained from an unconventional and abundant waste - rambutan peel since has been shown as most promising natural organic feedstock alternative petroleum for polymer science. FTIR analysis pH measurements have confirmed acidic form lignin, which solubility in a wide range polarities so many solvents, making its insertion easy on polymer...

With currently practiced technology, lignin is either incinerated in the recovery cycle of pulping or wasted in wastewater treatment systems, resulting in its underutilization. However, lignin can be converted to valueadded products. In this work, the copolymerization of soda lignin (SL) and acrylamide (AM) was carried out using potassium persulphate (K2S2O8) as an initiator in an aqueous solut...

the kinetics of old corrugated container (occ) soda-oxygen delignification was investigated. three delignification temperatures (145,165 and 175ºc) were applied. the pulping duration was adjusted at 150 minutes and the measurements were conducted at 10 minutes intervals. the pulping consistency, oxygen pressure and active alkali were constant at 10%, 6 bar and 18% naoh respectively in all pulpi...

Lignin, an amorphous biopolymer is one of the major components wood. In this study, lignin was extracted from Gmelina arborea wood using Soda and Kraft pulping processes. The characterized Fourier Transformed Infrared Spectrometer (FTIR), UV/visible spectrometer, electrospray ionization mass spectrometer scanning electron microscope (SEM). Results revealed that G. lignins contained several chem...

the present research has been conducted to investigate the soda and soda-anthraquiuone pulping from whole kenaf (v36). in this respect, anatomical characteristics of kenaf bast and core fibers as well as the soda and soda-aq pulp properties produced at four sodium hydroxide concentrations, namely 25, 30, 35 and 40 (g/lit), have been evaluated. the pulping results indicated that pulp yield and k...

The combined production of the most abundant agricultural residues in Spain (viz. cereal straw, sunflower stalks, vine shoots, cotton stalks, olive, orange and peach tree prunings, and horticultural and related residues) amounts to over 50 million tons per year, more than 20% of which is generated by Andalusia alone. Agricultural residues must be disposed of for various reasons including the fa...