Method for deprivig sulfur dioxide in solution of citrate

A technology of sulfur dioxide and citrate, which is applied in chemical instruments and methods, preparation of carboxylate, preparation of organic compounds, etc., can solve problems affecting the circulation and absorption of citrate solution, high decomposition rate of citrate, and high steam loss , to achieve the effects of reducing loss, reducing production, and reducing energy for separation
CN1660761AInactive Publication Date: 2005-08-31XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
Publication Date
2005-08-31
Estimated Expiration
Not applicable · inactive patent

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Abstract

A process for removing SO2 from the solution of citrate features that the citrate solution which has absorbed SO2 is acted by ultrasonic waves to decompose the sulforous acid into water and SO2 which can escape from the solution, and the resultant citrate solution, can also be used to absorb SO2, so it can be used to remove SO2 from the waste gas.
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Description

technical field

[0001] The invention relates to a method for removing sulfur dioxide, in particular to a method for removing sulfur dioxide in a citrate solution. Background technique

[0002] Sulfur dioxide is a harmful gas, especially low-concentration sulfur dioxide is a waste gas that is difficult to effectively control. In order to treat this kind of waste gas that pollutes the environment, the commonly used methods are alkaline absorption method and ion beam method, but these two methods have disadvantages such as high treatment cost, ineffective treatment of follow-up products, and waste residues. The use of citrate solution can effectively absorb the gas containing sulfur dioxide, and some methods can be used to separate the sulfur dioxide dissolved in the solution, and finally sell it as a product with high concentration of sulfur dioxide.

[0003] The currently adopted method for removing sulfur dioxide in citrate solution is: in a packed tower, use steam to heat ...

Claims

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