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Method for treating waste water from rubber antioxidant tmq (RD) device

A technology of rubber anti-aging agent and wastewater, which is applied in chemical instruments and methods, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc., to avoid pollution of the environment, reduce costs, and realize the effects of resource utilization

Active Publication Date: 2011-05-11
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are few reports on the use of chemical wastewater to prepare additives for coal-water slurry

Method used

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  • Method for treating waste water from rubber antioxidant tmq (RD) device
  • Method for treating waste water from rubber antioxidant tmq (RD) device
  • Method for treating waste water from rubber antioxidant tmq (RD) device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] Take 100mL rubber antioxidant RD device waste water, add 4-9g sodium sulfite to it, dissolve and heat to 40°C, add 10mL acetone, react for 30min and then heat up to 80°C, add 20mL formaldehyde solution, continue to react for 1h, keep the temperature Add 950 parts of RD waste water and react for 1 hour to make a composite coal-water slurry additive with an effective concentration of 0.5%; naturally cool to room temperature, and its different molecular weight distribution curves are as follows: figure 1 As shown, the molecular weight of the product decreases significantly with the increase of the amount of sulfonating agent. Wherein the occurrence of sodium sulfite being 4g causes the hydrophilicity of the product to decrease due to insufficient sulfonation, forming a light yellow insoluble matter. The non-sticky coal is ground by a ball mill to obtain coal powder with a mass percentage of particles with an average particle size of less than 75 μm greater than 80%. The co...

Embodiment 2

[0067] Take 100mL of rubber antioxidant RD device waste water, add 5g of sodium sulfite to it, dissolve and heat to 40°C, add 4-14mL of acetone, react for 30min and then heat up to 80°C, add 20mL of formaldehyde solution, continue to react for 1h, keep the temperature Add 950 parts of RD waste water and react for 1 hour to make a composite coal-water slurry additive with an effective concentration of 0.5%; naturally cool to room temperature, and its different molecular weight distribution curves are as follows: figure 2 As shown, with the increase of the amount of acetone, the molecular weight of the product first increases and then decreases. When the amount of acetone is small, the molecular weight may be small due to excessive sulfonation, and the initial reaction rate is low; and when the amount of acetone is large, the reaction rate is too fast, and the large ketone-aldehyde ratio is likely to cause a reduction in the degree of polymerization, so that Molecular weight de...

Embodiment 3

[0069] Take 100mL of rubber antioxidant RD device waste water, add 5g of sodium sulfite to it, dissolve and heat to 40°C, add 10mL of acetone, react for 30min and then heat up to 80°C, add 12-24mL of formaldehyde solution, continue to react for 1h, keep the temperature Add 950 parts of RD waste water and react for 1 hour to make a composite coal-water slurry additive with an effective concentration of 0.5%; naturally cool to room temperature, and its different molecular weight distribution curves are as follows: image 3 As shown, with the increase of the amount of formaldehyde, the molecular weight distribution of the product has a greater impact. The non-sticky coal is ground by a ball mill to obtain coal powder with a mass percentage of particles with an average particle size of less than 75 μm greater than 80%. The composite coal-water slurry additive obtained by reacting 20ml of formaldehyde and the non-sticky coal powder are in a mass ratio of 38:62 After preparation and...

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Abstract

The invention discloses a method for treating waste water from a rubber antioxidant tmq (RD) device, which relates to a waste water treatment process. The method comprises the following steps: weighing 50 mol parts of waste water from the rubber antioxidant tmq (RD) device, and adding sulfonating agent at a temperature of 40 to 60 DEG C; 2, adding 1 to 2 parts of acetone or acrylic acid compound, keeping the reaction temperature between 40 and 60 DEG C and reacting for 20 to 40 minutes; 3, adding 2 to 4 parts of an aldehyde compound or ethylene oxide, keeping the reaction temperature between 75 to 90 DEG C and reacting for 1 to 2 hours; and 4, adding 450 to 950 parts of waste water from the rubber antioxidant tmq (RD) device, keeping the reaction temperature between 75 to 90 DEG C, continuing to react for 0.5 to 1.0 hour, and preparing a composite water-coal-slurry additive at an effective concentration of 0.5 to 1 percent. In the method disclosed by the invention, after the waste water is subjected to proper chemical treatment, the water-coal-slurry additive and water coal slurry are obtained by an organic synthesis process, so that environmental pollution caused by waste water discharge is avoided, the cost of the water-coal-slurry additive is reduced effectively, and the waste water is recycled.

Description

technical field [0001] The present invention relates to a wastewater treatment process, specifically a method for treating wastewater from a rubber antioxidant RD plant, especially a technology for treating rubber antioxidant RD chemical wastewater through the synthesis and comprehensive utilization of coal-water slurry additives. A method for obtaining composite coal-water slurry from waste water of rubber antioxidant RD plant. Background technique [0002] The chemical industry is a traditional pillar industry in my country. The important chemical raw materials and products produced are widely used in national defense, printing and dyeing, plastics, pesticides and pharmaceutical industries. With the rapid development of the national economy, my country's chemical industry has also entered a period of rapid development. The level of equipment and technology has been significantly improved, and the production process and equipment have been continuously updated. At the same...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C10L1/32C09K23/00
Inventor 李正琪万国晖王伟
Owner CHINA PETROLEUM & CHEM CORP
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