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Synthetic method for chelate adsorbing resin suitable for heavy oil wastewater

A synthesis method, chelation adsorption technology, applied in chemical instruments and methods, adsorption water/sewage treatment, other chemical processes, etc., to achieve the effect of preventing ion leakage, easy large-scale production, and improving oil pollution resistance

Active Publication Date: 2014-02-19
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For solving the problems of the technologies described above, the object of the present invention is to provide a kind of synthetic method of chelating adsorption resin, it is to utilize p-acetoxystyrene monomer to mix with cross-linking agent, porogen to form oil phase, carry out suspension polymerization, The polymerized white ball particles are methylated by phthalimide to obtain amide balls, which are hydrolyzed by liquid alkali to obtain aminomethylated copolymer beads (referred to as primary amine balls), and finally reacted in the presence of liquid alkali and chloroacetic acid. Iminodiacetic acid-based chelating resin, the chelating adsorption resin has strong anti-pollution performance and efficient selective adsorption performance for divalent calcium and magnesium ions, and can efficiently remove metal ions in water in heavy oily sewage with high organic content. So that it does not cause scaling problems in the reuse of thermal recovery boilers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The present embodiment provides a kind of chelate adsorption resin, and it is prepared through the following steps:

[0032] Add 500mL of an aqueous solution (water phase) containing 2wt% gelatin and 15wt% sodium chloride into a 2L three-necked flask, stir, and control the stirring speed at 130rpm;

[0033] 100g acetoxystyrene, 16g divinylbenzene and 45g isobutanol are mixed to obtain an oil phase, then 1.0g benzoyl peroxide is added to the oil phase, and then added to the three-necked flask containing the water phase, the added At the same time, keep stirring. After the addition is completed, raise the temperature to 60°C and keep it warm for 8 hours, then raise the temperature to 85°C and keep it warm for 14 hours, then cool to room temperature to obtain polystyrene-based white balls, dry them after extraction or cleaning, and discharge;

[0034] Mix the dried polystyrene-based white ball with chloromethyl ether twice the mass of the polystyrene-based white ball at 10...

Embodiment 2

[0047] The present embodiment provides a kind of chelate adsorption resin, and it is prepared through the following steps:

[0048] Add 500mL of an aqueous solution (water phase) containing 3wt% gelatin and 20wt% sodium chloride into a 2L three-necked flask, stir, and control the stirring speed at 150rpm;

[0049] 100g acetoxystyrene, 20g divinylbenzene and 50g isobutanol are mixed to obtain an oil phase, then 1.0g benzoyl peroxide is added to the oil phase, and then added to the three-necked flask containing the water phase, the added At the same time, keep stirring. After the addition is completed, raise the temperature to 60°C and keep it warm for 10 hours, then raise the temperature to 90°C and keep it warm for 16 hours, then cool to room temperature to obtain polystyrene-based white balls, dry them after extraction or cleaning, and discharge;

[0050] Mix the dried polystyrene-based white ball with chloromethyl ether twice the mass of the polystyrene-based white ball at 1...

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Abstract

The invention relates to a synthetic method for chelate adsorbing resin suitable for heavy oil wastewater. The method comprises the following steps: adding an initiator in an oil phase, stirring the initiator to fully dissolve, adding the oil phase to a water phase in a stirring state, heating the temperature to 60-75 DEG C and insulating for 8-10 hours, heating to the temperature of 80-90 DEG C and insulating for 14-16 hours, cooling to obtain polystyrene series white ball, mixing the polystyrene series white ball and chloromethyl ether for chloromethylation reaction to obtain polystyrene series chlorine ball, mixing the polystyrene series chlorine ball and acetate phthalimide for esteryl reaction to obtain polystyrene series ester ball, mixing the polystyrene series ester ball and liquid alkali for hydrolysis reaction to obtain polystyrene series amine ball, mixing the polystyrene series amine ball, liquid alkali and chloroacetic acid for chelating reaction to obtain the chelate adsorbing resin suitable for the heavy oil wastewater. The chelate adsorbing resin suitable for heavy oil wastewater has good organic matter pollution resistance performance, and can be taken as secondary softening to prevent ions leakage in the heavy oil wastewater water quality.

Description

technical field [0001] The invention relates to a method for synthesizing a chelating adsorption resin suitable for heavy oil sewage, and belongs to the field of synthesizing polymer materials for petroleum exploitation. Background technique [0002] When the chelating resin is applied to heavy oily sewage, since heavy oily sewage contains a large amount of background substances such as humic acid, animal and vegetable oils, and petroleum, these substances will be adsorbed on the surface of the resin by the lipophilic skeleton of the resin to form a layer The water-oil mixture slows down the diffusion rate of metal ions in the water to the interior of the resin, so that the concentration of ions in the effluent cannot be reduced to the ppb level, which leads to the scaling problem caused by the reuse of thermal recovery boilers. [0003] Therefore, how to obtain a kind of chelating adsorption resin with better anti-pollution ability and good adsorption performance is a probl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J9/28C08J7/12C08L25/18C08F212/14C08F212/36B01J20/26B01J20/30C02F1/28
Inventor 蒋生健谢加才刘喜林范英才孙守国董滨郎成山韩海龙
Owner PETROCHINA CO LTD
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