An efficient and environmentally friendly polishing anion resin production system and production process

Abstract

The invention discloses an efficient and environment-friendly polishing anion resin production system and production process. The production system includes a silo, a sulfuric acid-type transformation column, a TOC high-efficiency cleaning machine, and a hydrogen-oxygen type transformation column. The input of the sulfuric acid-type transformation column The end is connected to the silo, the sulfuric acid head tank, the ultrapure water storage tank one, the vacuum buffer tank one and the nitrogen tank one. The output end of the sulfuric acid type transformation column is provided with a water outlet pipeline and a discharge pipeline. The input end of the ultrapure water storage tank two and the hydrogen-oxygen transformation column are connected, and the input end of the hydrogen-oxygen transformation column is connected with three liquid caustic high level tanks, and the input end of the hydrogen-oxygen transformation column is also connected with an ultrapure Water storage tank 3, vacuum buffer tank 2 and nitrogen tank 2, the present invention uses sulfuric acid type to convert hydrogen to oxygen type, which increases the transformation efficiency and reduces material consumption; improves product quality and avoids the conversion of chlorine type to hydrogen The oxygen type takes a long time and the amount of liquid caustic soda is used in a large amount.

Description

technical field

[0001] The invention belongs to the technical field of polishing resin production equipment and production technology, in particular to an efficient and environment-friendly polishing anion resin production system and production technology. Background technique

[0002] The existing polishing anion resin production, adopts the acid-base method to prepare polishing anion resin, the production method: liquid alkali transformation → ultrapure water cleaning → hydrochloric acid transformation → ultrapure water cleaning → liquid, alkali transformation → ultrapure water cleaning, so repeatedly 10-14 cycles. Its disadvantages are: although this process can produce polished anion resin, not only the production cycle is as long as 40 hours; and the amount of salt-containing, acid-containing, and alkali-containing wastewater produced is extremely large; the wastewater produced per ton of polished anion resin Up to 20 tons; this process cleans out TOC through the proce...

Examples

Embodiment 1

[0039] In the sulfuric acid head tank 5, add the sulfuric acid that the volume is 4D and the mass fraction is 2%, and add the Cl that the volume is 2D in the feed bin 1 - Type 201×7 strong basic anion, and Cl - Type 201 × 7 strong basic anions are vacuum pumped into the sulfuric acid type transition column 2, the sulfuric acid in the sulfuric acid header tank 5 is dripped into the sulfuric acid transition column 2, and the Cl - Type 201×7 strongly basic anion exchange resin converts SO into 4 2-type to obtain intermediate A; open the nitrogen valve of sulfuric acid type transformation column 2 to pressurize and filter the liquid in intermediate A, and close the water filter valve, pressurized intermediate A into TOC high-efficiency cleaning machine 3 and add 15 megohm ultrapure water with a volume of 4D to the TOC high-efficiency cleaning machine 3 for cleaning; after the TOC high-efficiency cleaning machine 3 has finished cleaning, open the water filter valve, drain the cle...

Embodiment 2

[0041] In the sulfuric acid head tank 5, add the sulfuric acid that the volume is 4D and the mass fraction is 3%, and add the Cl that the volume is 2D in the feed bin 1 - Type 201×7 strong basic anion, and Cl - Type 201 × 7 strong basic anions are vacuum pumped into the sulfuric acid type transition column 2, the sulfuric acid in the sulfuric acid header tank 5 is dripped into the sulfuric acid transition column 2, and the Cl - Type 201×7 strongly basic anion exchange resin converts SO into 4 2- type to obtain intermediate A; open the nitrogen valve of sulfuric acid type transformation column 2 to pressurize and filter the liquid in intermediate A, and close the water filter valve, pressurized intermediate A into TOC high-efficiency cleaning machine 3 and add 15 megohm ultrapure water with a volume of 4D to the TOC high-efficiency cleaning machine 3 for cleaning; after the TOC high-efficiency cleaning machine 3 has finished cleaning, open the water filter valve, drain the cl...

Embodiment 3

[0043] In the sulfuric acid head tank 5, add the sulfuric acid that the volume is 4D and the mass fraction is 24%, and add the Cl that the volume is 2D in the feed bin 1 - Type 201×7 strong basic anion, and Cl - Type 201 × 7 strong basic anions are vacuum pumped into the sulfuric acid type transition column 2, the sulfuric acid in the sulfuric acid header tank 5 is dripped into the sulfuric acid transition column 2, and the Cl - Type 201×7 strongly basic anion exchange resin converts SO into 4 2- type to obtain intermediate A; open the nitrogen valve of sulfuric acid type transformation column 2 to pressurize and filter the liquid in intermediate A, and close the water filter valve, pressurized intermediate A into TOC high-efficiency cleaning machine 3 and add 15 megohm ultrapure water with a volume of 4D to the TOC high-efficiency cleaning machine 3 for cleaning; after the TOC high-efficiency cleaning machine 3 has finished cleaning, open the water filter valve, drain the c...

technical field

[0001] The invention belongs to the technical field of polishing resin production equipment and production technology, in particular to an efficient and environment-friendly polishing anion resin production system and production technology. Background technique

[0002] The existing polishing anion resin production, adopts the acid-base method to prepare polishing anion resin, the production method: liquid alkali transformation → ultrapure water cleaning → hydrochloric acid transformation → ultrapure water cleaning → liquid, alkali transformation → ultrapure water cleaning, so repeatedly 10-14 cycles. Its disadvantages are: although this process can produce polished anion resin, not only the production cycle is as long as 40 hours; and the amount of salt-containing, acid-containing, and alkali-containing wastewater produced is extremely large; the wastewater produced per ton of polished anion resin Up to 20 tons; this process cleans out TOC through the proce...

Examples

Embodiment 1

[0039] In the sulfuric acid head tank 5, add the sulfuric acid that the volume is 4D and the mass fraction is 2%, and add the Cl that the volume is 2D in the feed bin 1 - Type 201×7 strong basic anion, and Cl - Type 201 × 7 strong basic anions are vacuum pumped into the sulfuric acid type transition column 2, the sulfuric acid in the sulfuric acid header tank 5 is dripped into the sulfuric acid transition column 2, and the Cl - Type 201×7 strongly basic anion exchange resin converts SO into 4 2-type to obtain intermediate A; open the nitrogen valve of sulfuric acid type transformation column 2 to pressurize and filter the liquid in intermediate A, and close the water filter valve, pressurized intermediate A into TOC high-efficiency cleaning machine 3 and add 15 megohm ultrapure water with a volume of 4D to the TOC high-efficiency cleaning machine 3 for cleaning; after the TOC high-efficiency cleaning machine 3 has finished cleaning, open the water filter valve, drain the cle...

Embodiment 2

[0041] In the sulfuric acid head tank 5, add the sulfuric acid that the volume is 4D and the mass fraction is 3%, and add the Cl that the volume is 2D in the feed bin 1 - Type 201×7 strong basic anion, and Cl - Type 201 × 7 strong basic anions are vacuum pumped into the sulfuric acid type transition column 2, the sulfuric acid in the sulfuric acid header tank 5 is dripped into the sulfuric acid transition column 2, and the Cl - Type 201×7 strongly basic anion exchange resin converts SO into 4 2- type to obtain intermediate A; open the nitrogen valve of sulfuric acid type transformation column 2 to pressurize and filter the liquid in intermediate A, and close the water filter valve, pressurized intermediate A into TOC high-efficiency cleaning machine 3 and add 15 megohm ultrapure water with a volume of 4D to the TOC high-efficiency cleaning machine 3 for cleaning; after the TOC high-efficiency cleaning machine 3 has finished cleaning, open the water filter valve, drain the cl...

Embodiment 3

[0043] In the sulfuric acid head tank 5, add the sulfuric acid that the volume is 4D and the mass fraction is 24%, and add the Cl that the volume is 2D in the feed bin 1 - Type 201×7 strong basic anion, and Cl - Type 201 × 7 strong basic anions are vacuum pumped into the sulfuric acid type transition column 2, the sulfuric acid in the sulfuric acid header tank 5 is dripped into the sulfuric acid transition column 2, and the Cl - Type 201×7 strongly basic anion exchange resin converts SO into 4 2- type to obtain intermediate A; open the nitrogen valve of sulfuric acid type transformation column 2 to pressurize and filter the liquid in intermediate A, and close the water filter valve, pressurized intermediate A into TOC high-efficiency cleaning machine 3 and add 15 megohm ultrapure water with a volume of 4D to the TOC high-efficiency cleaning machine 3 for cleaning; after the TOC high-efficiency cleaning machine 3 has finished cleaning, open the water filter valve, drain the c...

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