See Article History Alternative Titles:
These figures relate to - It was expected that bythe World production would be over million tonnes mcgroup. Manufacture of sulfuric acid The process for producing sulfuric acid has four stages: These contain sulfur compoundsboth organic and hydrogen sulfide both of which must be removed before they are used as fuels or chemical feedstock.
Another important source of sulfur is as sulfur dioxide from metal refining. Many metal ores occur as sulfides and are roasted to form an oxide and sulfur dioxide, for example, in the manufacture of lead: Other metals manufactured from their sulfide ores include coppernickel and zinc.
In particular, China makes most of its sulfuric acid from pyrites, an iron sulfide ore. Molten sulfur is sprayed into a furnace and burnt in a blast of dry air at about K.
Oxidation-reduction (redox) reactions and metathesis (single-replacement) reactions will be used. The objective of the experiment is to recover as much of the original copper as possible. The quantitative measure of success in this experiment is percent yield, which . 1. Determine a percent yield for the mass of recovered copper. The actual yield is the amount you ended up with, the theoretical yield can be found from the limiting reactant calculation from the last equation. 2. Explain why the theoretical yield in this lab is the same as the amount you started with. 3. Department of Chemical Engineering, Instituto. Superior Técnico, Lisbon (Portugal), October adriaticoutfitters.com 1. Structure, properties, classification and.
The sulfur burns with a characteristic blue flame: The gases are very hot and so are passed through heat exchangers waste heat boilers. The gases are cooled to about K and the water in the surrounding boiler pipes is converted into steam.
In manufacturing one tonne of sulfuric acid, one tonne of high pressure steam is also produced. The catalyst, vanadium V oxide on silica, is generally in the form of small pellets, to which caesium sulfate has been added as a promoter Figure 2.
The function of the promoter is to lower the melting point of vanadium V oxide so that it is molten at K. The gas inlet duct can be seen in the middle of the picture. As shown above, it is an exothermic reaction so, for a satisfactory yield of sulfur trioxide above Thus, heat is removed from the gas leaving each bed using heat exchangers.
The sulfur trioxide produced is removed between the third and fourth beds and flows to the next stage, the conversion of sulfur trioxide to sulfuric acid.
However, a small amount of the sulfur dioxide is not converted and is passed through the fourth bed of catalyst and the resulting gases, mainly sulfur trioxide, flow to the next stage.
Based on diagram given by Mike Sellars.
Sulfur trioxide reacts with water and the reaction can be expressed as: This is kept at this concentration by addition of water and removal of acid at that concentration. To keep the temperature at about K, the heat is removed by heat exchangers, Figure 4.
The gas stream is filtered to remove any traces of sulfuric acid mist and is returned to the atmosphere using a high stack. Please send these comments to:Study Experiment 6- Chemical Reactions of Copper and Percent Yield flashcards.
Play games, take quizzes, print and more with Easy Notecards. Feeding farm animals is a process of priority decision-making involving at least two general conditions. The first is an abundance of food material which is not in a usable form or aesthetically acceptable as human food, and the second is a surplus of food material accompanied by a standard of living sufficiently high that the nutrient losses involved in feeding animals are compensated for by.
Chemical Reactions of Copper and Percent Yield ny time an acid is added to a metal hydrogen gas is released. We also checked with a glowing wooden splint that burst into flames when placed in the beaker.5/5(6).
Oxidation-reduction (redox) reactions and metathesis (single-replacement) reactions will be used. The objective of the experiment is to recover as much of the original copper as possible. The quantitative measure of success in this experiment is percent yield, which is the ratio of recovered mass to initial mass.
chemical reactions and copper percent yield. STUDY. PLAY. Methasis Reactions. Methasis reactions are reactions in which two substances react through an exchange of their component ions:AX+BY->AY+BX.
Redox Reactions. Redox reactions are reactions in which certain atoms undergo changes in their oxidation states. Percent Yield = moles Cu / moles Cu X = % Conclusions The initial mass of copper used in the experiment was grams, and the initial moles of copper was