Minerals-to-Metals Research Initiative‚ Department of Chemical Engineering‚ University of Cape Town‚ Private Bag‚ Rondebosch‚ 7701‚ South Africa a r t i c l e i n f o Available online 17 June 2010 Keywords: Acid mine drainage Prediction test Sulfide tailings a b s t r a c t Acid mine drainage (AMD) is formed by the microbially catalysed oxidation of sulfide minerals on exposure to moisture and air. It results in the ongoing contamination of water streams with acidity‚ sulfate and metal
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Experiment C. Aim: To protect one of two carbonyl groups (C1) in order to allow the other to react twice with a Grignard followed by removal of the protecting group by acid hydrolysis to give final product (C2). Method: Ethyl acetoacetate (30.03g)‚ ethylene glycol (15.01g) and toluene-p-sulphonic acid (0.13g) were added to a 250 cm3 round bottomed flask‚ containing a stirrer bar and toluene (100 cm3)‚ fitted with a condenser and dean-stark head. Solution was heated strongly under reflux using
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Statement of the Problem Oil price hike is one of the major problems in the country. To help in the production of oil we must utilize whatever things we have abundantly and use it to lessen if not totally eradicate the problem. This project will try to increase the sources of oil to lower its price and I recommend the use of plant oil like oil from Jackfruit seeds because plant oil is healthier. It answers the following questions -Can you extract oil from jackfruit seeds? -Is jackfruit
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Acid-Base Calculations The Ion-Product Constant for Water‚ Kw Water undergoes ionization to a small extent: H20(l) H+(aq) + OH–(aq) The equilibrium constant for the reaction is the ion-product constant for water Kw: (1) This is a key equation in acid-base chemistry. Note that the product of [H+] and [OH–] is a constant at a given temperature (Eq(1) value is for 25oC). Thus as the hydrogen ion concentration of a solution increases‚ the hydroxide ion concentration decreases
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variety of lessons Mr. Donoso gave us like reports about various religions‚ documentary films and his his lectures were all a part of this learnings. I’ve learn to accept also others becaue we may be having "different" Gods but this is because we came from different environment‚ culture‚ beliefs and all. But still we know that there is not Almighty God we are trying to communicate with. And that is what Religion is for. pI have learned that Parish involvement isn’t as bad as I expected it to be.
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International Business Assignment 3 A Pipeline of good Intentions 1- What is the “oil curse”? Why do you think it develops? The oil curse (Paradox of Plenty) refers to the paradox that countries and regions with an abundance of natural resources‚ specifically point-source non-renewable resources like minerals and fuels‚ tend to have less economic growth and worse development outcomes than countries with fewer natural resources. This is hypothesized to happen for many different reasons‚ including
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Introduction An essential oil is a concentrated hydrophobic liquid containing volatile aroma compounds from plants. Essential oils are also known as volatile oils‚ ethereal oils or aetherolea‚ or simply as the "oil of" the plant from which they were extracted‚ such as oil of clove. Volatile oils are the odorous and volatile products of various plant and animal species. As they have a tendency to undergo evaporation on being exposed to the air even at an ambient temperature‚ they are invariably termed
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Corporates Food / India 2012 Outlook: Indian Edible Oils Liquidity under Pressure Outlook Report Rating Outlook Rating Outlook Negative Outlook: Fitch Ratings‟ outlook for the Indian edible oil industry in 2012 is negative. The agency expects higher revenue growth led by firm pricing on global cues of lower stock to consumption ratio to be offset against higher input costs resulting in margin pressures. Fitch expects the margin pressures coupled with higher working-capital needs and expansion
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Jarrett Sears Dr. Hummel Chem 121 2/7/13 A Chemical Reaction between Tin and Nitric Acid Introduction: Finding the products made from the components of tin metal and nitric acid is the ultimate objective of this lab; the formula of the products will be found in the CRC handbook thereafter. Procedure: First‚ obtain a clean crucible‚ and heat it under a Bunsen burner until it is as hot as possible‚ about 15 minutes within a fume hood unit. The Bunsen burner will be used under the fume
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Making oil conservation a way of life is in truth a very simple concept. The simplest way to do this is to cut down on your use of cars. Bike‚ walk‚ rollerblade‚ skateboard‚ or run to your destination. Not only does it conserve oil but it gives you exercise as well. Another way to make oil conservation a part of life is to choose materials other than plastic which uses crude oil for household items; you should also use cloth or paper bags instead of plastic bags when shopping. One very simple way
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