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Improved carbonate solution and preparation method thereof

A carbonate and solution technology, applied in the field of solution preparation, can solve the problems of preparation personnel injury, complicated purchase and transportation, etc., and achieve the effect of small reaction intensity, stable reaction and safe configuration process

Inactive Publication Date: 2015-05-27
辽宁北方化学工业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, vanadium pentoxide is highly toxic and will cause harm to the preparation personnel; and vanadium pentoxide is a controlled product, which is relatively complicated in purchase and transportation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1. Selection of the order of adding the prepared solution

[0031] The first option:

[0032] Pour 200ml of desalted water into a beaker and heat to 80°C, add 75.7g of potassium carbonate to dissolve, then add 7.1g of boric acid, after dissolving, add 16.2g of potassium vanadate until dissolved, and finally add solid potassium hydroxide until dissolved. A small amount of bubbles were generated in the reaction, the reaction was stable, and the solution was light yellow.

[0033] The second option:

[0034] Pour 200ml of desalted water into a beaker and heat to 80°C, add 7.1g of boric acid to dissolve, then add 75.7g of potassium carbonate, after dissolving, add 16.2g of potassium vanadate until dissolved, and finally add solid potassium hydroxide until dissolved. A large number of bubbles were generated in the reaction, the reaction was more violent, and the solution was yellow.

[0035] The third option:

[0036] Pour 200ml of desalted water into a beaker and heat t...

Embodiment 2

[0043] Choice of preparation temperature

[0044] Option One

[0045] Pour 200ml of desalted water into a beaker and heat to 70°C, add 75.7g of potassium carbonate to dissolve, then add 7.1g of boric acid, after dissolving, add 16.2g of potassium vanadate until dissolved, and finally add solid potassium hydroxide until dissolved.

[0046] Option II

[0047] Pour 200ml of desalted water into a beaker and heat to 75°C, add 75.7g of potassium carbonate to dissolve, then add 7.1g of boric acid, after dissolving, add 16.2g of potassium vanadate until dissolved, and finally add solid potassium hydroxide until dissolved.

[0048] third solution

[0049] Pour 200ml of desalted water into a beaker and heat to 80°C, add 75.7g of potassium carbonate to dissolve, then add 7.1g of boric acid, after dissolving, add 16.2g of potassium vanadate until dissolved, and finally add solid potassium hydroxide until dissolved.

[0050] Option four

[0051] Pour 200ml of desalted water into a beak...

Embodiment 3

[0062] Group 1: Pour 200ml of desalted water into a beaker and heat to 80°C, add 75g of potassium carbonate, control the addition speed during the addition process, add slowly while stirring; after completely dissolving, add 6g of boric acid, add slowly while stirring; dissolve Finally, 12 g of potassium vanadate was added, and slowly added while stirring; after dissolving, 6.5 g of potassium hydroxide was finally added, and slowly added while stirring until completely dissolved, and the pH of the obtained solution was 11.

[0063] Group 2: Pour 200ml of desalted water into a beaker and heat to 80°C, add 77g of potassium carbonate, control the adding speed during the addition process, add slowly while stirring; after completely dissolving, add 7g of boric acid, add slowly while stirring; dissolve Finally, add 15g of potassium vanadate, and add slowly while stirring; after dissolving, finally add 7g of potassium hydroxide, add slowly while stirring until completely dissolved, an...

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PUM

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Abstract

The invention relates to the field of the preparation of a solution, and particularly relates to an improved carbonate solution and a preparation method thereof. The improved carbonate solution is mainly prepared by dissolving potassium carbonate, boric acid, potassium vanadate and potassium hydroxide in water. According to the improved carbonate solution, the non-toxic potassium vanadate is specifically selected to substitute vanadium pentoxide, the used reagent is harmless to the human body, the content of the potassium carbonate, vanadium and boron in the improved carbonate solution prepared by the reagents can well meet the requirement of ethylene oxide process, and an expected goal can be achieved. The invention also provides a preparation method of the improved carbonate solution. The method comprises the step of sequentially dissolving potassium carbonate, boric acid, potassium vanadate and potassium hydroxide into the water to obtain the improved carbonate solution. All the reagents are sequentially added, the reaction intensity is small, few bubbles are produced in the reaction process, the reaction is stable, the configuration process is safe, and the obtained solution is in light yellow.

Description

technical field [0001] The invention relates to the field of solution preparation, in particular to an improved carbonate solution and a preparation method thereof. Background technique [0002] The ethylene oxide plant needs to deal with the excessive carbon dioxide gas produced due to peroxidation. At present, the existing potassium carbonate solution configuration uses potassium carbonate, boric acid, and vanadium pentoxide. Among them, vanadium pentoxide is a highly poisonous drug, which will cause harm to the preparation personnel; and vanadium pentoxide is a controlled product, which is relatively complicated in purchase and transportation. [0003] In view of this, the present invention is proposed. Contents of the invention [0004] The first object of the present invention is to provide an improved carbonate solution, the solute used in the improved carbonate solution does not contain toxic heavy metal components, and the prepared carbonate solution can better me...

Claims

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Application Information

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IPC IPC(8): B01D53/14
Inventor 林鹤李由进柳彦军朱柯
Owner 辽宁北方化学工业有限公司
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