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A method for producing sulfonated oil using waste acid

A technology of sulfonated oil and waste sulfuric acid, which is applied in the preparation of sulfonic acid and organic chemistry, can solve the problems of high cost and high consumption, and achieve the effects of protecting the environment, reducing costs and utilizing resources

Active Publication Date: 2017-04-05
湖北尚助化学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, a large amount of 98% concentrated sulfuric acid needs to be consumed in the production process of the existing sulfonated oil DAH, and the cost is very high

Method used

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  • A method for producing sulfonated oil using waste acid
  • A method for producing sulfonated oil using waste acid
  • A method for producing sulfonated oil using waste acid

Examples

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Embodiment 1

[0021] (embodiment 1, embodiment 2 and embodiment 3 all adopt the method for utilizing waste acid to produce sulfonated oil of the present invention to carry out the physical treatment of waste acid earlier and carry out the production of sulfonated oil DAH with the waste acid after physical treatment again. Implementation Between example 1, embodiment 2 and embodiment 3, only the molar ratio of waste sulfuric acid in the production of sulfonated oil DAH and other raw materials is different, and the production process of other sulfonated oils and the physical treatment process of waste acid are all the same.)

[0022] A method for producing sulfonated oil using waste acid in the present invention is as follows: physically treat the waste acid produced in the process of producing penetrant BX to obtain waste acid with a sulfuric acid mass content of about 80%; then, use the waste acid obtained in the previous step The acid is used as a sulfonating agent in the production of sulf...

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PUM

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Abstract

The invention provides a method for using waste acid to produce sulfonated oil. The method includes: after the second-step sulponation reaction during a penetrant BX production process, cooling and standing materials to normal temperature, standing for layering, and separating the waste acid from reaction products; placing the waste acid into a suction filtration barrel for suction filtration to allow a small amount of naphthalene sulfonic acid mixed into the waste acid to be reserved on filter cloth so as to obtain waste acid, namely waste sulfuric acid with sulfuric acid mass concentration of about 80%; using the waste sulfuric acid as sulfonating agent sulfonated oil DAH production to perform sulponation reaction; wherein the mole ratio of the waste sulfuric acid after being converted into sulfuric acid with the mass concentration of 100% to butyl oleate is 1.05-1.1:1. By the method, cost is lowered, resources are utilized, and environments are protected.

Description

technical field [0001] The invention relates to a method for producing sulfonated oil by using waste acid, in particular to a method for producing sulfonated oil by using waste acid produced in the process of producing penetrant BX. Background technique [0002] In the chemical production process, many sulfonation reactions use concentrated sulfuric acid as a sulfonating agent, so a large amount of industrial waste acid is produced. A large amount of waste acid is discharged along with the wastewater, which not only acidifies the water body or soil, causes harm to the ecological environment, but also wastes a lot of resources. The country has formulated strict emission standards for this. If the waste acid is recovered by methods such as concentration, oxidation, extraction and crystallization, the cost is very high. It is an economically feasible method if the waste acid is simply treated by physical methods, and then applied to the production of certain products for recy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C309/62C07C303/06
Inventor 汪学玉张天峰傅瑞芳
Owner 湖北尚助化学有限公司