No coin nor oath required. For personal study only.
companies have been promoting the use of silica/silane systems since the early 1990s. It is now fairly well accepted that "green tyres" offer numerous benefits. They offer better traction, which reduces stopping distances on wet and icy surfaces by 15%. Overall winter driving performance is improved by 10-15%. Tyre-rolling resistance is reduced by up to 20% compared to an equivalent standard tyre and as a result vehicle fuel consumption can be cut by as much as 5%. They also help to reduce carbon dioxide emissions. However, the higher manufacturing cost of using silane coupling agents to produce silica-reinforced treads meant consumers were being asked to pay higher prices for "green tyres" and this hindered widespread acceptance.
Researchers at Barry have developed a "phase-transfer catalysis" (PTC) method, which accelerates the reaction time needed for making silanes, thus reducing both manufacturing costs and the amount of materials needed. In addition, the improved PTC technology requires no salt filtration, hazardous solvents, or solvent recovery -moving the "green" philosophy down the supply chain.
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to Africa; 4% to West Asia; 2% to Oceania; and 1% to South America. On Mr Gao's figures, China's consumption of iron oxides has increased at an average rate of 12.3% per annum between 1997 and 2001. If that growth rate is maintained over the next five years, consumption will reach 308,000 tonnes by
niches in the iron oxide pigments industry. Mr Lu Swan (of Florida Coastal Colors, based in Melbourne, FL) spoke about "regenerated iron oxide" that is extracted from saturated steel pickling liquor. Roughly speaking, a pickling line designed to clean 900,000 tonnes/y of steel with hydrochloric acid