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Method for continuously producing peroxymonosulfuric acid

A technology of sulfuric acid and oxidizing liquid, applied in chemical instruments and methods, peroxide/peroxyhydrate/peroxyacid/superoxide/ozonide, inorganic chemistry, etc. The equipment occupies a large space, and the cooling efficiency is low, so as to achieve the effect of being suitable for large-scale industrial production, realizing automatic precise control, and small equipment occupying space

Pending Publication Date: 2022-05-10
SHANGYU JIEHUA CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is difficult to control the precise addition of raw materials during the reaction process, the loss rate of hydrogen peroxide is high, the loss of acid mist is high, the quality of peroxymonosulfuric acid is unstable, the cost of tail gas treatment is high, the safety hazard is large, the cooling efficiency is low, the equipment occupies a large space and the utilization rate is high. Not high, the equipment has serious corrosion and the reality of difficult maintenance

Method used

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  • Method for continuously producing peroxymonosulfuric acid
  • Method for continuously producing peroxymonosulfuric acid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Raw materials: weigh 150kg of 50% sulfuric acid by a mass flowmeter, pump it into the raw material tank 1, turn on the refrigerant, reduce the temperature of sulfuric acid to 25°C, and use it as raw material A for standby; weigh 65kg of 50% hydrogen peroxide by a mass flowmeter, Pump into raw material tank 2, add 0.35kg of specific stabilizer, stir evenly, turn on the refrigerant, lower the temperature of hydrogen peroxide to -10°C, and use it as raw material B for later use;

[0023] Reactor equipment: spiral plate heat exchange reactor with a heat exchange area of ​​5m 2 .

[0024] Transfer kettle: The transfer kettle is a 300L stainless steel reaction kettle.

[0025] (2) Pump raw material A and raw material B, and pump them into the spiral plate heat exchange reactor through a flow meter, control the flow rate of raw material A to 75kg / h, and the flow rate of raw material B to 30kg / h; import frozen brine -20°C, The outlet frozen brine is 5°C; the temperature o...

Embodiment 2

[0027] The difference from Example 1 is that the sulfuric acid selected is 30% oleum.

[0028] (1) Raw materials: Weigh 150kg of 30% oleum through a mass flowmeter, pump it into raw material tank 1, open the frozen brine, reduce the temperature of sulfuric acid to 25°C, and use it as raw material A for standby; weigh 50% through a mass flowmeter Pump 80kg of hydrogen peroxide into raw material tank 2, add 0.35kg of specific stabilizer, stir evenly, turn on the frozen brine, lower the temperature of hydrogen peroxide to -10°C, and use it as raw material B for later use;

[0029] Reactor equipment: spiral plate heat exchange reactor with a heat exchange area of ​​5m 2 .

[0030] Transfer kettle: The transfer kettle is a 300L stainless steel reaction kettle.

[0031] (2) Pump raw material A and raw material B, and pump them into the spiral plate heat exchange reactor through a flow meter, control the flow rate of raw material A to 75kg / h, and the flow rate of raw material B to ...

Embodiment 3

[0033] The difference from Example 1 is that the type of heat exchange reactor selected is different.

[0034] (1) Raw materials: Weigh 150kg of 50% sulfuric acid through a mass flowmeter, pump it into the raw material tank 1, open the frozen brine, reduce the temperature of sulfuric acid to 25°C, and use it as raw material A for standby; weigh 65kg of 50% hydrogen peroxide through a mass flowmeter , pump into raw material tank 2, add 0.35kg of specific stabilizer, stir evenly, turn on the frozen brine, lower the temperature of hydrogen peroxide to -10°C, and use it as raw material B for later use;

[0035] Reactor equipment: The heat exchange area of ​​the microchannel reactor is 1m 2 .

[0036] Transfer kettle: The transfer kettle is a 300L stainless steel reaction kettle.

[0037] (2) Transport raw material A and raw material B with a pump, pump them into the microchannel reactor through a flow meter, control the flow rate of raw material A to 75kg / h, and the flow rate of...

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Abstract

The invention discloses a method for continuously producing peroxymonosulfuric acid. The process comprises the following steps: 1, taking sulfuric acid as a raw material A; 2, taking hydrogen peroxide containing a specific stabilizer as a raw material B; 3, enabling the raw material A and the raw material B to simultaneously flow through a high-efficiency heat exchange reactor according to a set proportion through an automatic control system to react to generate oxidation liquid peroxymonosulfuric acid; and 4, introducing the oxidation liquid into a transfer kettle, and curing to obtain a finished product. The efficient heat exchange reactor is adopted for continuous reaction, the occupied space of equipment is small, the whole process can be automatically and accurately controlled, the quality of produced products is stable, the online amount of raw materials is small, the safety is high, the energy efficiency utilization rate is high, the equipment is convenient to maintain, the products can be continuously produced, and the device is particularly suitable for large-scale industrial production.

Description

technical field [0001] The invention relates to the technical field of peroxymonosulfuric acid preparation, in particular to a production system and production process for continuous production of peroxymonosulfuric acid. Background technique [0002] Peroxymonosulfuric acid is an inorganic compound with the chemical formula H 2 SO 5 , It is a white solid at normal temperature and pressure, and it is usually applied in the form of a solution. Peroxomonosulfuric acid has strong oxidizing property because of containing peroxide, and the electrode potential E=+2.51V. Therefore, peroxymonosulfuric acid is often used as a disinfectant, such as disinfection of swimming pool water or dentures, disinfection of hospital wastewater, etc., alkali metal salts of peroxymonosulfuric acid are used for delignification, ammonium salts of peroxymonosulfuric acid, Sodium salts and potassium salts are used as polymerization initiators, etching agents, soil conditioners in the plastics indust...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B15/06
CPCC01B15/06
Inventor 陶卓奇崔旭罗力军严朝阳陶彭均黄卓敏苏建强连少君
Owner SHANGYU JIEHUA CHEM
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