Vanadium

Catalyst used for this particular process was copper/vanadium [Cu(0.1-05% & V (0.02-0.1%)]. Nitric acid was the oxidiser in this process. This process has been referred to as the “old” traditional process. This process will be compared with ‘greener’…

At the late of 20th century, Mao Zedong, communist leader, organized the Cultural Revolution in order to assert the authority over the Chinese government. He declared that the nation’s youth to purify the “impure” elements of Chinese society and to revive the revolutionary spirit that lead to victory in the civil war 20 decades earlier in order to restore the China’s reputation and power. However, his leadership position in government as in the Soviet Union was weakened and failed his Great Leap…

mixture of various organic compounds, comprising of different hydrocarbons and heteroatomic compounds (Simanzhenkov and Idem, 2003). In addition to carbon and hydrogen, petroleum might contain sulphur, oxygen and nitrogen, and metals such as nickel, vanadium, iron, and copper. Crude oil physical and chemical compositions vary with location, depth and age (Rahimi and Gentzis, 2006). Physical composition of crude oil varies from black liquids of high viscosity to straw-colored liquids that vary…

The Democratic People’s Republic of Korea, more commonly known as North Korea, is a country founded on September 9th, 1948 after being liberated from the Japanese by the Russians while South Korea was liberated by the United States of America. South Korea took on a Democratic government similar to the US while North Korea took on a Communist government similar to Russia. This caused a serious divide between the countries. Roughly two years later North Korea invaded South Korea with support…

In “Africa Unchained,” it talks about how Africa can evolve if they make changes to their environment. In addition, it talks about how Africans haven 't been prosperous in the 21st century, which is why the author states to the audience about how Africa’s economic freedom was taken away from them, because of people trying to make money out of it. After reading chapter 1 “Why Africa is Poor,” I got really into it and it made me wonder why there are behind in urbanism and in technology of growth…

The periodic table is a very identifiable symbol in everything science. There is one hanging in almost every chemistry class. But, the one we know is not what it always was. Before our modern periodic table there was the periodic table that Dmitri Mendeleev constructed. There are many differences and similarities between the Modern Periodic Table and Mendeleev’s Periodic Table. Just for example, the modern periodic table arranges elements in order of increasing atomic number. Mendeleev’s ordered…

of the coast of Chile and Peru. This creature is a bottom feeder so it just sticks on to a rock as it filters water through its mouth and extracts the nutrients that it needs. As a result this creature has high concentration of an element called Vanadium in its blood which is around 10 million times higher than in the surrounding water it lives in. It is for this reason that it is often said not to be that safe to eat however many sill eat it as it has a unique taste. It is often served raw with…

2. The gas phase catalytic oxidation of benzene reactor model and evaluation of the parametric sensitivity To illustrate the parametric sensitivity analysis, the case of gaseous phase catalytic oxidation of benzene to maleic anhydride was considered (Lupușor et al., 1981). The multi-tubular reactor (heat exchanger type) with the fixed bed catalyst inside a small diameter tubes (under 3 -4 cm) is continously cooled by molten salt mixture (nitrates and nitrites mixture; Maria , 2007). The raw…

limpopo rivers. The only major lake is the Fundudzi Lake. The natural resources available to them include, gold, chromium, antimony, coal, iron ore, manganese, nickel, phosphates, tin, rare earth elements, uranium, gem diamonds, platinum, copper, vanadium, salt, and natural gas. The geography can directly…

Power of Pollution Everybody knows that there are many different types of pollution, but what people don’t know is how it’s affecting their environment, and themselves. Researchers tend to focus on the types of pollution: air, environmental, sound, light and many more, but not on who and how it affects them. Not only does pollution affect animals and the environment, but it affects humans too. While limitations are put on how much pollution companies are allowed to emit out into the atmosphere,…