A kind of production technology that utilizes alkylation waste acid to produce sulfate

A technology of alkylation waste acid and production process, applied in the direction of alkali metal sulfite/sulfite, magnesium sulfate, inorganic chemistry, etc., can solve the problems of alkylation waste acid and waste alkali pollution, and achieve good economy Effects of benefits and social benefits

Active Publication Date: 2021-01-26
盘锦泓实环保科技有限公司
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  • Description
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Problems solved by technology

[0005] In order to make up for the deficiencies in the prior art, the purpose of the present invention is to provide a production process utilizing alkylation waste acid to produce sulfate, by using different mixed reaction equipment and adjusting process parameters to produce sulfate products such as sodium sulfate and magnesium sulfate , recyclable treatment of alkylation waste acid and waste alkali, completely solved the pollution problem of alkylation waste acid and waste alkali, and has good economic and social benefits

Method used

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  • A kind of production technology that utilizes alkylation waste acid to produce sulfate
  • A kind of production technology that utilizes alkylation waste acid to produce sulfate
  • A kind of production technology that utilizes alkylation waste acid to produce sulfate

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Embodiment 1

[0028] A kind of production technology that utilizes alkylation waste acid to produce sodium sulfate, consists of the following steps:

[0029] (1) Mixed neutralization reaction: Measure the alkylation waste acid and waste alkali through the metering tank and then add it to the reactor for neutralization reaction, and control the reaction temperature to 90-95°C by circulating water cooling, and then adjust it with caustic soda pH to neutral;

[0030] (2) High-temperature reaction: Add the neutralized product to a high-temperature reactor for high-temperature reaction at 800°C, in which organic matter is decomposed into carbon dioxide and water, and the sulfur dioxide decomposed by excess waste acid in the high-temperature reaction passes through two-stage desulfurization The desulfurization treatment is carried out in the tower, and the desulfurization agent for the desulfurization treatment is caustic soda. The high temperature reactor is under negative pressure conditions du...

Embodiment 2

[0035] A kind of production technology that utilizes alkylation waste acid to produce magnesium sulfate is characterized in that, is made up of following steps:

[0036] (1) Mixed neutralization reaction: Measure the alkylated waste acid and light-burned magnesia through a metering tank (off the scale) and add them to the reactor for neutralization reaction, and control the reaction temperature by circulating water to 90-95 ℃, then adjust the pH value to neutral with caustic soda;

[0037] (2) High-temperature reaction: Add the neutralized product to a high-temperature reactor for high-temperature reaction at 800°C, in which organic matter is decomposed into carbon dioxide and water, and excess waste acid and sulfur dioxide decomposed from magnesium sulfate in the high-temperature reaction Desulfurization treatment is carried out through two-stage desulfurization towers. The desulfurization agent for desulfurization treatment is light-burned magnesium oxide. The high-temperatu...

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Abstract

A production process for producing sulfate by using alkylation waste acid, through the process of neutralization reaction, pH adjustment, high temperature reaction, dissolution, filtration, crystallization and drying to obtain powdered sodium sulfate decahydrate and heptahydrate Magnesium sulfate products. This production process is resource-based treatment of alkylation waste acid and waste alkali, which completely solves the pollution problem of alkylation waste acid and waste alkali. It has good economic and social benefits. This production process does not waste It is a typical environmentally friendly cleaning process. The production process in the present invention can not only produce sodium sulfate decahydrate, but also produce other sulfates such as magnesium sulfate heptahydrate.

Description

technical field [0001] The invention relates to the technical field of recycling waste acid from alkylation, in particular to a production process for producing sulfate by using waste acid from alkylation. Background technique [0002] Sodium sulfate decahydrate, known as Glauber's salt, is widely used in papermaking, glass manufacturing, leather, non-ferrous metals, electroplating and dyes and other industries. [0003] Magnesium sulfate heptahydrate is also known as Epsom salt, sulfur bitter, bitter salt, and Epsom salt. It is widely used in industry, agriculture, building materials, medicine and other fields, among which it is the most widely used in the agricultural fertilizer industry. Asia and Africa have a huge import demand for magnesium sulfate heptahydrate, and the export volume of this product is increasing year by year. [0004] The existing domestic alkylation treatment process is mainly high-temperature cracking, recycling sulfuric acid, which not only costs a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01D5/00C01F5/40
CPCC01D5/00C01F5/40
Inventor 刘宝库吕绍臣关帅张超
Owner 盘锦泓实环保科技有限公司
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