What is the contact process of sulfuric acid?
The contact process of sulfuric acid is a multi -stage reaction that begins with raw sulfur and ends with concentrated acid. Theoretically, sulfur can be burned with air to form sulfur dioxide and then react directly with water to form sulfuric acid. This process generates a large amount of heat, is not chemically controllable and, as a result, is rarely used. The contact process uses sulfur dioxide to form sulfur dioxide, which is absorbed into sulfuric acid to form Olea, and then the final step responds with water to form sulfuric acid.
Sulfur is a yellow mineral found in the ground like stored layers, often near volcanoes or ancient lava beds. Sulfur is first burned by air to form sulfur dioxide, molecule of one sulfur and two oxygen atoms. The air entering into this reaction is bubbling concentrated acid to remove any water, as moisture generates sulfuric acid in the reactor and causes excessive heat and corrosion.
The aces carefully control the amount of reactants to maintain the amount close to a hundred. Stochiometry is the calculation of the ratios of molecules needed to ensure an optimized reaction without the use of excess materials. Maintaining chemical reactions in the vicinity of the right conditions will reduce costs and improve revenues, which often leads to cleaner products that require less processing. The contact process of sulfuric acid must be operated in this way to control temperatures, as the reactions produce a lot of heat that can affect the product and damage to the device.
As soon as the sulfur oxide leaves the reactor, it enters the second reaction with greater air to form sulfur oxide, which adds another oxygen molecule. The contact process of sulfuric acid could respond directly to sulfur oxide oxide directly with water, but this reaction is very unstable and difficult to control. Sulfuric acid is mixed with molecule of oxide, whiCH is formed by an oleum or plowing sulfuric acid. Oleum is a very reactive acid containing excess sulfur molecules, but can be mixed with water controlled to form sulfuric acid while maintaining the right temperatures.
Every reaction step with air is carried out in the presence of a catalyst, usually vanadu oxide. The metal catalyst is not consumed in response, but helps the reaction at lower temperatures than required without it. The oxygen content must also be carefully checked because other air does not create other acid, but reduces the amount of sulfur dioxide or sulfur dioxide, because the excess air will dilute sulfur molecules. The contact process of sulfuric acid creates less acids if additional oxygen is permitted in the process.
sulfuric acid is sold in a wide range of solid pages or concentrations, but the contact process of sulfuric acid creates a highly concentrated form. Transport concentrated sulfuric acid is more economical than dilutedForm, because water can be added later as needed to create the required force. Concentrated acid also very easily absorbs water very easily, so that during production and transport it is necessary to pay attention to minimizing water or external air, which will dilute acid and can increase corrosion.