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23.083  Articles
1 of 2.309 pages  |  10  records  |  more records»
Study of nickel leaching using sulfuric acid and phosphoric acid on the selectivity of low-grade laterite nickel ore under atmospheric conditions has been successfully carried out. In this study, the laterite nickel leaching process was carried out by var... see more

An urgent task is the development of new resource-saving technologies for deep processing of wastes from the hydrometallurgical industry for the purpose of their reuse. Membrane technologies make it possible to create closed technological cycles with the ... see more

 
The evaporation process of sulfuric acid solution has been analyzed in the hollow apparatus of column type under direct contact between acid drops and hot gas. On the basis of the mathematical model the main parameters have been calculated: evaporation ti... see more

 
The evaporation process of sulfuric acid solution has been analyzed in the hollow apparatus of column type under direct contact between acid drops and hot gas. On the basis of the mathematical model the main parameters have been calculated: evaporation ti... see more

The duration of submersion and the level of acid concentration which are the decisive factors to succed the chemical scarification. The duration of submersion should be adjusted to the level of seed skin thickness, the level of acid concentration and the ... see more

The carob tree has been grown well on poor, sandy, calcareous and limestone soils. It is drought resistance, the plant is especially useful for areas where irrigation is impractical or rainfall is unreliable. It is one of the favorite trees planted in th... see more

Sulfuric acid is a colourless, odorless liquid, which causes typical injury patterns such as cutaneous and ocular burns, respiratory complications from inhalation, and ingestion injuries (coagulative necrosis of the mucosa, gastric and intestinal perforat... see more

Vegetable waste is an organic waste with high cellulose and hemicellulose and low lignin content. The cellulose and hemicellulose chains can be broken down by pretreatment using sulfuric acid to obtain reducing sugar. To avoid the formation of degradation... see more

 The seaweeds are bio-resource rich in sulfated and neutral polysaccharides. The tropical seaweed species used in this study (Solieria filiformis), after dried, shows 65.8% (w/w) carbohydrate, 9.6% (w/w) protein, 1.7% (w/w) lipid, 7.0% (w/w) moisture... see more

1 of 2.309 pages  |  10  records  |  more records»