A5039692535- Lignin and Wood Chemistry
- Advanced Cellulose Research Studies
- Biofuel production and bioconversion
- Forest Biomass Utilization and Management
- Mine drainage and remediation techniques
- Tailings Management and Properties
- Wood Treatment and Properties
- Phosphorus and nutrient management
- African Botany and Ecology Studies
- Sustainable Supply Chain Management
- Postharvest Quality and Shelf Life Management
- Extraction and Separation Processes
- Metal Extraction and Bioleaching
- Thermochemical Biomass Conversion Processes
- Sustainable Industrial Ecology
- Bioeconomy and Sustainability Development
- Ginkgo biloba and Cashew Applications
- Material Properties and Processing
- biodegradable polymer synthesis and properties
- Mining Techniques and Economics
- Coal Combustion and Slurry Processing
- Cyclone Separators and Fluid Dynamics
Council for Scientific and Industrial Research
2010-2023
Council of Scientific and Industrial Research
2015
The feasibility of enhancing the efficiency kraft pulping operations while at same time evolving process into a biorefinery, and thus producing hemicelluloses together with paper products, was studied. Hardwood chips (Eucalyptus grandis) were pre-treated green liquor prior to pulp production. At optimal pre-treatment conditions, pH resulting extract 7.8, wood weight loss 14%, hemicellulose extracted almost 40 kg/ton woodchips. In subsequent pulping, data revealed that woodchips from which...
Abstract Woodchip impregnation plays a vital role in enhancing Kraft pulp mill's pulping efficiency. Traditionally, mills uses the self‐generated liquor such as black liquor, green and white liquor. However, all these liquors have operational / or efficiency limitations. In this study, feasibility of using weak an alternative source alkaline for impregnating woodchips was investigated. South African Eucalyptus grandis were impregnated with without Under optimal conditions, results showed...
Production of chemical pulp is accompanied by various impurities in addition to the cellulose fibres produced. The are mainly due lignin fragments and wood resin components wood. possibility removing such as fines extractives at early production stages hydrocyclone fractionation was investigated. A sample unbleached eucalyptus fractionated using a feed consistencies 0.1% 1.0% mass reject rates 5% 41%. Fractionation efficiency assessed measuring changes consistency, Canadian Standard...
Ozone use in conjunction with chlorine dioxide during pulp bleaching offers several advantages over conventional sequences that make of only. Despite this, South Africa, only one mill uses ozone. The current study was a preliminary investigation into the ozone for kraft pulps produced from African Eucalyptus grandis wood chips, which typically contained high amounts hexenuronic acids (HexA). objective to compare performance other technologies used remove HexA, such as acid hydrolysis (A) and...