Integrated equipment for treating waste acid to produce ammonium sulfate and its operation method

Abstract

The present invention is an integrated equipment for treating waste acid to produce ammonium sulfate and its operation method. The integrated equipment is a tower reactor; a tower reactor buffer section, a reaction section, an oil-water separation section, and an oil production section are sequentially arranged from the bottom of the tower to the top of the tower. and defoaming section; there is an exhaust outlet (13) at the top of the tower, and an extraction outlet (14) is arranged at the bottom of the tower. A coaxial inner sleeve is arranged in the buffer section, the reaction section and the oil-water separation section of the tower kettle. Ammonia enters from the ammonia pipeline (1) in the tower kettle, and reacts with the water inlet of the water delivery pipeline (8) and the waste sulfuric acid pipeline (6). Extraction outlet (10) is extracted. Integrating the functions of waste acid dilution, reaction and oil-water separation into one, solves the shortcomings of the traditional preparation process such as large area and complicated operation, further reduces production and operation costs, and prepares ammonium sulfate with high purity and good appearance solution to obtain ammonium sulfate crystals that meet national standards.

Description

technical field [0001] The invention relates to a novel equipment and method for the process of preparing ammonium sulfate by alkylating waste acid, which has the advantages of integrating waste acid dilution, reaction, flotation and oil removal, and is especially suitable for the integration of gas-liquid reaction and purification process. Background technique [0002] With the development of the national economy, the market demand for high-octane gasoline is increasing, which makes alkylated oil have a broad market potential. However, 80-100 kg of waste sulfuric acid with a concentration of 90% will be produced for every 1 ton of alkylated oil produced. This waste acid is a colloidal liquid with a high viscosity. Its color is black red, unstable in nature, and emits a special smell smell, it is difficult to deal with, and it brings serious pollution to the ecological environment. Its composition also contains 10% organic matter (polymerized oil) and moisture except sulfur...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a new type of integrated equipment for waste acid treatment and preparation of ammonium sulfate and its operation method, which integrates the functions of waste acid dilution, reaction and oil-water separation, and solves the problem of large area occupied by traditional preparation processes and complicated operations. Disadvantages, further reduce the cost of production operations, and prepare ammonium sulfate solution with higher purity and better product phase to obtain ammonium sulfate crystals that meet national standards

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