Efficient and environment-friendly polishing cation resin production system and production process

A production process and production system technology, applied in the field of polishing cation resin production system and production process, can solve the problems of large amount of waste water containing salt, acid and alkali, large amount of ultrapure water, long production cycle, etc. Economic benefits, the effect of reducing the amount of waste water, reducing production costs and environmental protection costs

CN112657560AActive Publication Date: 2021-04-16ANHUI SANXIN RESIN TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2021-04-16

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Abstract

The invention discloses an efficient and environment-friendly polishing cation resin production system and a production process, and particularly relates to a polishing cation resin production system and a production process which are low in material consumption, short in production period and low in waste yield. The method comprises the following steps: adding industrial H+ type cation exchange resin 001*7 containing metal ions into a high-efficiency TOC cleaner, and adding 15 M[ohm] (resistivity) ultrapure water of which the volume is 2 times that of the high-efficiency TOC cleaner for cleaning for 1 hour; filtering out the washing liquid, and filling the washed cation resin into a conversion column; dropwise adding the liquid through an elevated tank, wherein the flow rate is twice the volume per hour; and cleaning to be neutral by using 15 M[ohm] (resistivity) ultrapure water of which the volume is twice that of the product to obtain a finished product, wherein H+ type rate is greater than or equal to 99.7%.
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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 resin production system and production technology. Background technique

[0002] The existing polishing cation resin is produced, and the acid-base method is used to prepare the polishing cation resin. The production method is:

[0003]

[0004] Specifically: hydrochloric acid transformation → ultrapure water cleaning → hydrochloric acid transformation → ultrapure water cleaning → liquid alkali transformation → ultrapure water cleaning, and so on for 10-14 cycles until TOC is less than 1PPb and the transformation rate is ≥ 90%.

[0005] The disadvantages of this scheme are: although this process can produce polished cation resin, not only the production cycle is as long as 35 hours; and the amount of waste water containing salt, acid and alkali is extremely large; The waste ...

Examples

Embodiment 1

[0041] H of volume D + Type 001×7 strong acidic cation exchange resin is vacuum pumped into the high-efficiency TOC cleaning machine 1, and 15 megohm ultrapure water with a volume of 2D is added to the TOC high-efficiency cleaning machine 1 for cleaning for 1 hour, and the water filter is turned on after cleaning Valve, drain the cleaning solution, and add ultrapure water with a volume of 2D into the TOC high-efficiency cleaning machine 1, turn on the TOC high-efficiency cleaning machine 1 for stirring, open the vacuum valve on the hydrogen-type transformation column 2, and vacuum the positive resin Pumped into the hydrogen-oxygen transformation column 2, the volume of 2D hydrochloric acid with a mass fraction of 2% is added dropwise into the hydrogen-oxygen transformation column 2 through the hydrochloric acid head tank 4 for transformation; The 15 megohm ultrapure water is washed to neutrality. After the washing is completed, the nitrogen valve on the hydrogen-oxygen transfo...

Embodiment 2

[0043] H of volume D + Type 001×7 strong acidic cation exchange resin is vacuum pumped into the high-efficiency TOC cleaning machine 1, and 15 megohm ultrapure water with a volume of 2D is added to the TOC high-efficiency cleaning machine 1 for cleaning for 1 hour, and the water filter is turned on after cleaning Valve, drain the cleaning solution, and add ultrapure water with a volume of 2D into the TOC high-efficiency cleaning machine 1, turn on the TOC high-efficiency cleaning machine 1 for stirring, open the vacuum valve on the hydrogen-type transformation column 2, and vacuum the positive resin Pumped into the hydrogen-oxygen transformation column 2; the volume of 3D hydrochloric acid with a mass fraction of 3% is added dropwise into the hydrogen-oxygen transformation column through the hydrochloric acid head tank 4 for transformation; the injection volume is 3D in the hydrogen-oxygen transformation column 2 Wash with 15 megohm ultra-pure water to neutrality. After washin...

Embodiment 3

[0045] H of volume D +Type 001×7 strong acidic cation exchange resin is vacuum pumped into the high-efficiency TOC cleaning machine 1, and 15 megohm ultrapure water with a volume of 2D is added to the TOC high-efficiency cleaning machine 1 for cleaning for 1 hour, and the water filter is turned on after cleaning Valve, drain the cleaning solution, and add ultrapure water with a volume of 2D into the TOC high-efficiency cleaning machine 1, turn on the TOC high-efficiency cleaning machine 1 for stirring, open the vacuum valve on the hydrogen-type transformation column 2, and vacuum the positive resin Pumped into the hydrogen-oxygen transformation column 2; the hydrochloric acid with a volume of 3D mass fraction 4% is added dropwise into the hydrogen-oxygen transformation column through the hydrochloric acid head tank 4 for transformation; the injection volume is 3D in the hydrogen-oxygen transformation column 2 Wash with 15 megohm ultra-pure water to neutrality. After washing, o...