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Absorbing liquid for waste gas treatment of rubber banburying, its preparation method and application

A technology for rubber mixing and waste gas treatment, which is applied in the direction of separation methods, chemical instruments and methods, and separation of dispersed particles, and can solve problems such as ineffective removal

Active Publication Date: 2022-01-25
CHINA CHEM GUILIN ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, the treatment objects of this existing absorbent are only sulfides and nitrogen oxides, but due to its particularity, waste gas from rubber banburying contains not only sulfides and nitrogen oxides, but also solid particles (such as carbon black), amines, Odor substances such as ammonia gas, these substances cannot be effectively removed by the above absorbents due to their chemical properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Example 1 Sample 1

[0036] Absorbent formula :

[0037] Oxidant 2 parts of magnesium hydroxide, 7 parts of polyethylene glycol monomethyl ether;

[0038] Active agent 3 parts of sodium carbonate, 7 parts of sodium thiocyanate;

[0039] Preparation :

[0040] Prepare the oxidant solution: dissolve the oxidant in an appropriate amount of water according to the ratio to obtain the oxidant solution;

[0041] Preparation of active agent solution: dissolve the active agent in an appropriate amount of water to obtain the active agent solution;

[0042] Mixing: Mix the oxidant solution and the active agent solution, stir evenly, and then continue to add water until the total weight of water added is 1000 parts, continue to stir and mix evenly, and obtain absorption liquid sample 1.

Embodiment 2

[0043] Example 2 Sample 2

[0044] Absorbent formula :

[0045] Oxidant 5 parts of aluminum hydroxide, 4 parts of sulfolane;

[0046] Active agent 5 parts of sodium phosphate, 2 parts of sodium bisilicate;

[0047] Preparation :

[0048]Prepare the oxidant solution: dissolve the oxidant in an appropriate amount of water according to the ratio to obtain the oxidant solution;

[0049] Preparation of active agent solution: dissolve the active agent in an appropriate amount of water to obtain the active agent solution;

[0050] Mixing: Mix the oxidant solution and the active agent solution, stir evenly, and then continue to add water until the total weight of water is 1000 parts, continue to stir and mix evenly, and obtain absorption liquid sample 2.

Embodiment 3

[0051] Example 3 Sample 3

[0052] Absorbent formula :

[0053] Oxidant 4 parts of copper hydroxide, 1 part of piperazine, 3 parts of dimethylacetamide;

[0054] Active agent 4 parts of sodium bicarbonate;

[0055] 0.5 part of pH regulator citric acid;

[0056] Preparation :

[0057] Prepare the oxidant solution: dissolve the oxidant in an appropriate amount of water according to the ratio to obtain the oxidant solution;

[0058] Preparation of active agent solution: dissolve the active agent in an appropriate amount of water to obtain the active agent solution;

[0059] Prepare the pH regulator solution: dissolve the pH regulator in an appropriate amount of water according to the ratio to obtain the pH regulator solution;

[0060] Mixing: Mix the oxidant solution and the active agent solution, stir evenly, and then continue to add water until the total weight of water added is 1000 parts, continue to stir and mix evenly, and finally add the pH regulator to obtain an a...

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PUM

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Abstract

The invention relates to an absorption liquid used for treating waste gas from rubber banburying, its preparation method and application. The absorption liquid of the present invention comprises an oxidizing agent and an activating agent; the oxidizing agent is selected from magnesium hydroxide, aluminum hydroxide, zinc hydroxide, iron hydroxide, etc.; the activating agent is a soluble salt that can be dissolved in water, and can be dissolved in water Generate CO 3 2‑ 、HCO 3 ‑ , SO 4 2‑ 、HSO 4 ‑ 、SCN ‑ 、PO 4 3‑ 、HPO 4 2‑ 、H 2 PO 4 ‑ 、HSiO 3 ‑ or SiO 3 2‑ . In a preferred embodiment, the present invention aims at the solid particle pollutants such as carbon black in the waste gas of rubber banburying, so that the nano-magnetic particles will wrap the solid particle pollutants, and then combine, condense, and fall based on the principle of magnetism, so as to realize the Effective removal of solid particle pollutants.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to an absorption liquid used for treating waste gas from rubber banburying, its preparation method and application. Background technique [0002] During the production of rubber tires, a certain amount of exhaust gas is produced. The pollution factors of this kind of exhaust gas are mainly industrial dust (solid particles, etc.), odor (gas pollutants, etc.) and other pollutants. The malodorous components will cause certain pollution to the surrounding environment and the environment of the factory area, and it is inevitable to disturb the residents. The flue gas produced in the production process of the banburying workshop and the vulcanization workshop, which contains H 2 S, NH 3 , Organic sulfides, mercaptans, amines and other trace organic component gases not only cause direct harm to the health of operators, but also pollute the surrounding atmospheric environment, and waste ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/14
CPCB01D53/1493B01D53/1487
Inventor 马良杨长煌蒋鹏飞侯淳莫湘晋王秀文王智华
Owner CHINA CHEM GUILIN ENG
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