Porous polystyrene chelate resin containing 8-hydroxyquinoline and synthesis process

A technology of porous polystyrene and synthesis process, applied in water/sludge/sewage treatment, water pollutants, adsorption of water/sewage treatment, etc., can solve the problem of low adsorption performance

Inactive Publication Date: 2022-04-15
罗德军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the invention provides a kind of porous polystyrene chelating resin containing 8-hydroxyquinoline and its synthesis process, which solves the problem that the adsorption performance of polystyrene resin to metal ions such as cadmium and nickel is not high

Method used

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  • Porous polystyrene chelate resin containing 8-hydroxyquinoline and synthesis process
  • Porous polystyrene chelate resin containing 8-hydroxyquinoline and synthesis process
  • Porous polystyrene chelate resin containing 8-hydroxyquinoline and synthesis process

Examples

Experimental program
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Effect test

Embodiment 1

[0030] (1) with glycidol and 1-Boc piperazine as reactant synthetic dihydroxy Boc piperazine compound (C 12 h 24 N 2 o 2 ), then 100 parts (mass parts) of dihydroxy Boc piperazine compounds were added to 600 parts of dichloromethane, 65 parts of acryloyl chloride were added, and 30 parts of catalyst pyridine were added dropwise under ice bath, and then heated to 15 ℃ for 3 hours, after the reaction, distilled under reduced pressure, the product was washed with ether, and then added into ethyl acetate for recrystallization to obtain diacryloyloxy Boc-piperazine compound (C 18 h 28 N 2 o 6 ).

[0031] (2) Add 100 parts (mass parts) of diacryloxy-Boc-piperazine to 500 parts of ethyl acetate, add concentrated hydrochloric acid dropwise under ice bath to adjust the pH to 1.5, react at 15°C for 2h, and then drop Add ammonia water, stir and adjust the pH of the solution to 8, stir evenly, distill under reduced pressure, add ethyl acetate and deionized water for extraction, tak...

Embodiment 2

[0035] (1) with glycidol and 1-Boc piperazine as reactant synthetic dihydroxy Boc piperazine compound (C 12 h 24 N 2 o 2 ), then 100 parts (mass parts) of dihydroxy Boc piperazine compounds are added to 800 parts of chloroform, 72 parts of acryloyl chloride are added, and 38 parts of catalyst pyridine are added dropwise under ice bath, and then heated to 40 ℃ for 3 hours, after the reaction, distilled under reduced pressure, the product was washed with ether, and then added into ethyl acetate for recrystallization to obtain diacryloyloxy Boc-piperazine compound (C 18 h 28 N 2 o 6 ).

[0036] (2) Add 100 parts (parts by mass) of diacryloyloxy Boc piperazine to 800 parts of ethyl acetate, add concentrated hydrochloric acid dropwise under ice bath to adjust the pH to 2, react at 30°C for 5h, then drop Add ammonia water, stir and adjust the pH of the solution to 8, stir evenly, distill under reduced pressure, add ethyl acetate and deionized water for extraction, take the or...

Embodiment 3

[0040] (1) with glycidol and 1-Boc piperazine as reactant synthetic dihydroxy Boc piperazine compound (C 12 h 24 N 2 o 2 ), then 100 parts (mass parts) of dihydroxy Boc piperazine compound was added to 1200 parts of tetrahydrofuran, 82 parts of acryloyl chloride were added, and 48 parts of catalyst pyridine was added dropwise under ice bath, and then heated to 30°C for reaction After 5h, the reaction was distilled under reduced pressure, the product was washed with diethyl ether, and then added into ethyl acetate for recrystallization to obtain the diacryloyloxy Boc piperazine compound (C 18 h 28 N 2 o 6 ).

[0041] (2) Add 100 parts (parts by mass) of diacryloxy-Boc-piperazine to 1200 parts of ethyl acetate, add concentrated hydrochloric acid dropwise under ice bath to adjust the pH to 2, react at 30°C for 6h, then drop Add ammonia water, stir and adjust the pH of the solution to 9, stir evenly, distill under reduced pressure, add ethyl acetate and deionized water for ...

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Abstract

The invention relates to the technical field of chelate resins, and discloses a porous polystyrene chelate resin containing 8-hydroxyquinoline, a diacryloyloxy piperazine compound contains a piperazine structure and two active acryloyloxy groups, can be used as a cross-linking agent, and is subjected to cross-linking polymerization with a styrene monomer to obtain a piperazine-containing porous polystyrene resin; a piperazine structure is introduced into polystyrene resin, 5-chloro-8-hydroxyquinoline reacts with part of piperazine in polystyrene to obtain the porous polystyrene chelate resin containing 8-hydroxyquinoline, and the porous polystyrene chelate resin is uniform in pore size distribution, high in specific surface area and high in porosity. The contained 8-hydroxyquinoline structure has a very strong bidentate bond coordination chelation effect on Cd < 2 + > and Pb < 2 + >, and the imino group contained in piperazine also has a good complexing adsorption effect on heavy metal ions, so that the porous polystyrene chelating resin containing 8-hydroxyquinoline has an excellent adsorption effect on the heavy metal ions such as Cd < 2 + > and Pb < 2 + >.

Description

technical field [0001] The invention relates to the technical field of chelating resins, in particular to a porous polystyrene chelating resin containing 8-hydroxyquinoline and a synthesis process. Background technique [0002] Polystyrene porous chelating resin is usually made of styrene as a monomer, divinylbenzene as a crosslinking agent, and n-heptanol or toluene as a porogen. It has a high specific surface area and excellent Absorptivity, widely used in pollutant adsorption and water treatment and utilization. Process industrial wastewater contains a large amount of heavy metal ions such as copper, lead, and cadmium. If it is not treated effectively, it will cause serious pollution to the environment. However, polystyrene porous resin The adsorption efficiency of heavy metal ions in wastewater is not high, and it is difficult to effectively remove heavy metals. Patent CN102702402B "Synthesis method of polystyrene macromolecular ligand with 8-hydroxyquinoline group as co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/36C08L25/08B01J20/26B01J20/30C02F1/28C02F101/20
CPCC08J9/36B01J20/261C02F1/285C08J2325/08B01J2220/4812C02F2101/20
Inventor 罗德军
Owner 罗德军
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