CN103012658A - Production method for strongly basic anion exchange resin - Google Patents

Abstract

The invention discloses a production method for strongly basic anion exchange resin. On the basis of the traditional production technology, the anion exchange resin prepared by the method has uniform pore diameter distribution and increased exchange capacity by reasonably combining a suspension protective agent, a dispersing agent, a pore-foaming agent and a complexing agent and optimizing technological parameters. The anion exchange resin prepared by the method has the advantages that the specific surface area of the anion exchange resin can reach above 70m<2>/g, the proportion of mesopores greater than 2nm is greater than 50%, the complete exchange capacity reaches 5.6mmol/g, and the moisture content is 43%.

Description

The production method of strongly basic anion exchange resin

Technical field

The invention belongs to a kind of preparation method of ion exchange resin, specifically a kind of production method of strongly basic anion exchange resin.

Background technology

Anion and cation exchange resin is widely used for the fields such as the decolouring of the purification of water treatment, material, concentrated, separation, transformation that substance ion forms, material and catalyzer.Although the exchange capacity of present anion and cation exchange resin has obtained effective raising, pore size distribution is uneven, and the aperture ratio is excessive, and exchange velocity is low.The problems such as exchange capacity deficiency do not satisfy client's requirement.

Summary of the invention

The production method that the purpose of this invention is to provide a kind of strongly basic anion exchange resin, the present invention is by the improvement of water, so that dispersed, suspension raising, and then reach the exchange capacity that increases ion exchange resin, the effect of even aperture distribution.

Technical scheme of the present invention is as follows:

The production method of strongly basic anion exchange resin is characterized in that:

(1) polymerization prepares the A ball, may further comprise the steps:

Take by weighing the water raw material of following weight part, mix, stir;

Deionized water 500-600

Glycerine 50-55

Polyoxyethylene glycol 30-35

Walocel MT 20.000PV 20-25

Triethylene tetramine 20-25

Repone K 60-65

Sodium Persulfate 1-2

Transferring PH with sulfuric acid is 6.8-7.2

Take by weighing the oil phase raw material of following weight part: add aqueous phase after mixing, stir;

Methyl acrylate 365-375

Divinylbenzene 20-23

TAIC 6-10

Isopropylcarbinol 115-125

Toluene 25-30

Dimethylbenzene 15-20

Ferrocene 8-10

Diisopropyl azodicarboxylate 3-5

Slowly be warming up to 69-72 ℃;

Exothermic heat of reaction is stronger, and cooling maintains the temperature at 68-70 ℃ after the heat release, be incubated 2-3 hour;

Be warming up to 80-82 ℃ of insulation 2-3h with the 20-40 minutes;

Be warming up to 90-96 ℃ with 40-80 minute and be incubated 4-5h;

With the hot water wash nodule number all over till limpid to water;

Drain water, oven dry, sub-sieve gets the A ball;

(2), amination reaction prepares resin, may further comprise the steps:

Press the row weight part and take by weighing raw material, in clean reactor, add the A ball, add again 1,2 propylene diamine, ethylene glycol, stir;

A ball 380-420

1,2 propylene diamine 780-820

Ethylene glycol 880-920

Be warming up to 135-145 ℃, insulation 4-5h; Be warming up to 155-165 ℃, insulation 5-6h is warming up to 165-170 ℃, insulation 3-4h; Be warming up to 170-175 ℃, insulation 3-4h;

Control during sampling is surveyed, it is qualified greater than 4.2mmol/g to exchange;

Take out mother liquor, washing, discharging.

The present invention is by reasonably combined suspension protective material, dispersion agent, pore-creating agent, complexing agent; Optimizing Process Parameters, so that the anionite-exchange resin of present method preparation, pore size distribution is uneven; the effect that exchange capacity improves, the ion exchange resin specific surface area that the present invention makes can reach 70m ²More than/the g, greater than 50%, complete exchange capacity reaches 5.6mmol/g greater than the mesopore ratio of 2nm, and water ratio is 43%.

Embodiment

The production method of strongly basic anion exchange resin:

(1) polymerization prepares the A ball, may further comprise the steps:

Take by weighing the water raw material of following weight (kilogram), mix, stir;

Deionized water 500

Glycerine 50

Polyoxyethylene glycol 30

Walocel MT 20.000PV 20

Triethylene tetramine 20

Repone K 60

Sodium Persulfate 1

Transferring PH with sulfuric acid is 6.8-7.2

Take by weighing the oil phase raw material of following weight (kilogram): add aqueous phase after mixing, stir;

Methyl acrylate 365

Divinylbenzene 20

TAIC 6

Isopropylcarbinol 115

Toluene 25

Dimethylbenzene 15

Ferrocene 8-

Diisopropyl azodicarboxylate 3

Slowly be warming up to 69-72 ℃;

Exothermic heat of reaction is stronger, and cooling maintains the temperature at 68-70 ℃ after the heat release, be incubated 2-3 hour;

Be warming up to 80-82 ℃ of insulation 2-3h with the 30-40 minutes;

Be warming up to 90-96 ℃ with 70-80 minute and be incubated 4-5h;

With the hot water wash nodule number all over till limpid to water;

Drain water, oven dry, sub-sieve gets the A ball;

(2), amination reaction prepares resin, may further comprise the steps:

Press column weight amount (kilogram) and take by weighing raw material, in clean reactor, add the A ball, add again 1,2 propylene diamine, ethylene glycol, stir;

A ball 380-420

1,2 propylene diamine 780-820

Ethylene glycol 880-920

Be warming up to 135-145 ℃, insulation 4-5h; Be warming up to 155-165 ℃, insulation 5-6h is warming up to 165-170 ℃, insulation 3-4h; Be warming up to 170-175 ℃, insulation 3-4h;

Control during sampling is surveyed, it is qualified greater than 4.2mmol/g to exchange;

Take out mother liquor, washing, discharging.

The ion exchange resin specific surface area that the present invention makes can reach 70m ²More than/the g, greater than 50%, complete exchange capacity reaches 5.6mmol/g greater than the mesopore ratio of 2nm, and water ratio is 43%.

Claims (1)

1. the production method of strongly basic anion exchange resin is characterized in that:

(1) polymerization prepares the A ball, may further comprise the steps:

Take by weighing the water raw material of following weight part, mix, stir;

Deionized water 500-600

Glycerine 50-55

Polyoxyethylene glycol 30-35

Walocel MT 20.000PV 20-25

Triethylene tetramine 20-25

Repone K 60-65

Sodium Persulfate 1-2

Transferring PH with sulfuric acid is 6.8-7.2

Take by weighing the oil phase raw material of following weight part: add aqueous phase after mixing, stir;

Methyl acrylate 365-375

Divinylbenzene 20-23

TAIC 6-10

Isopropylcarbinol 115-125

Toluene 25-30

Dimethylbenzene 15-20

Ferrocene 8-10

Diisopropyl azodicarboxylate 3-5

Slowly be warming up to 69-72 ℃;

Exothermic heat of reaction is stronger, and cooling maintains the temperature at 68-70 ℃ after the heat release, be incubated 2-3 hour;

Be warming up to 80-82 ℃ of insulation 2-3h with the 20-40 minutes;

Be warming up to 90-96 ℃ with 40-80 minute and be incubated 4-5h;

With the hot water wash nodule number all over till limpid to water;

Drain water, oven dry, sub-sieve gets the A ball;

(2), amination reaction prepares resin, may further comprise the steps:

Press the row weight part and take by weighing raw material, in clean reactor, add the A ball, add again 1,2 propylene diamine, ethylene glycol, stir;

A ball 380-420

1,2 propylene diamine 780-820

Ethylene glycol 880-920

Be warming up to 135-145 ℃, insulation 4-5h; Be warming up to 155-165 ℃, insulation 5-6h is warming up to 165-170 ℃, insulation 3-4h; Be warming up to 170-175 ℃, insulation 3-4h;

Control during sampling is surveyed, it is qualified greater than 4.2mmol/g to exchange;

Take out mother liquor, washing, discharging.