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Method and apparatus for adjusting the concentration of acids or lyes

A lye, concentration technology, applied in chemical instruments and methods, transportation and packaging, sulfur trioxide/sulfuric acid, etc., can solve the problems of pressure loss, the concentration of the outlet pipe can not be achieved, the flow cross section is reduced, etc., to achieve pressure loss The effect of reducing and increasing flow resistance and uniform concentration distribution

Active Publication Date: 2013-04-03
OUTOTEC OYJ
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the flow cross-section is thus reduced, which leads to a pressure loss
Despite a considerable amount of equipment, a uniform concentration cannot be achieved at the inlet of the outlet duct

Method used

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  • Method and apparatus for adjusting the concentration of acids or lyes
  • Method and apparatus for adjusting the concentration of acids or lyes
  • Method and apparatus for adjusting the concentration of acids or lyes

Examples

Experimental program
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Embodiment Construction

[0023] exist figure 1 An apparatus for concentration regulation of sulfuric acid as known in the prior art is shown in . The device comprises a supply conduit 1 for concentrated sulfuric acid, which is connected to an inlet 2 of a mixing chamber 3 . The mixing chamber 3 is arranged substantially at right angles to the supply duct 1 and has an outlet 4 at the end opposite the supply duct 1 , which is connected to a discharge duct 5 . The discharge duct 5 is also arranged substantially at right angles to the mixing chamber 3 and in substantially the same plane as the supply duct 1 .

[0024] In the end of the mixing chamber 3 adjacent to the inlet 2, a lance 6 with nozzle openings (so-called "black pipes") is arranged through which water can be injected into the sulfuric acid stream. Furthermore, a static mixer, which is not shown in the figure, can also be included in the mixing chamber 3 .

[0025] figure 2 shows a facility for concentration regulation according to the in...

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PUM

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Abstract

For adjusting the concentration of acids or lyes, in particular of sulfuric acid, the acid or lye is supplied through an inlet to a mixing chamber, is mixed therein with a medium for adjusting the concentration, and the concentration-adjusted acid or lye is discharged from the mixing chamber through an outlet. To achieve a uniform dilution of the acid or lye and small concentration deviations with low pressure loss, the medium for adjusting the concentration, in particular water, is charged to the acid or lye before the inlet to the mixing chamber and the acid stream or lye stream and the stream of the medium subsequently are deflected preferably by 90 DEG .

Description

technical field [0001] The invention relates to the regulation of the concentration of an acid or lye, in particular sulfuric acid, wherein said acid or lye is supplied to a mixing chamber through an inlet and mixed therein with a medium for adjusting the concentration, and wherein the adjusted concentration Acid or lye is discharged from the mixing chamber through an outlet. Background technique [0002] The concentration adjustment is described below with reference to sulfuric acid. However, the present invention is not limited thereto, and can be generally applied to adjusting the concentration of acid or lye. [0003] Sulfuric acid, a very important starting material for the chemical industry, is usually produced by the so-called double absorption process, which is described, for example, in Ullmann's Encyclopedia of Industrial Chemistry, 5th Edition, Vol. A25, pp. 635 to 700. Sulfur dioxide (SO 2 ) is converted to sulfur trioxide (SO 3 ). The sulfur trioxide obtain...

Claims

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Application Information

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IPC IPC(8): C01B17/69C01B17/74C01B17/80
CPCC01B17/74B01F5/0648B01F5/0456B01F5/0463B01F3/0865C01B17/80B01F5/0646C01B17/69B01F5/0453B01F5/0451B01F23/451B01F25/3132B01F25/31322B01F25/31331B01F25/3131B01F25/4332B01F25/433C01B17/76
Inventor K-H·道姆H·艾泽曼W·沙尔克
Owner OUTOTEC OYJ
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