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Anion exchange resin production system and production process

An anion resin and production process technology, applied in the direction of anion exchange, ion exchange, chemical instruments and methods, etc., can solve the problems of increasing the production cost of anion exchange resin, high secondary treatment cost, and inability to use phosphate fertilizer to produce, etc., to achieve effective Conducive to environmental protection, ensuring non-pollution, and reducing the output of waste water

Active Publication Date: 2011-12-14
NINGBO ZHENGGUANG RESIN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Its shortcoming is: although the preparation of this technology can obtain chloromethyl ether, but when producing chloromethyl ether, produced the sulfuric acid containing HCL, this sulfuric acid not only can't be used for the production of phosphate fertilizer, and directly affects the environment Produce serious pollution; the 2nd, adopt liquid formaldehyde and hydrochloric acid to participate in chloromethyl ether production, because formaldehyde is formaldehyde below 37% in liquid formaldehyde, and more than 63% is water, so will produce a large amount of waste liquids in production
Due to the extremely high cost of secondary treatment of the waste liquid, the general user does not process the liquid, but directly discharges it, which causes great pollution to the environment and directly increases the production cost of the anion exchange resin; the second is to use hydrochloric acid for the reaction, And get hydrogen chloride gas from the reaction of hydrochloric acid
Since the hydrogen chloride contained in hydrochloric acid only accounts for about 30%, the use of hydrochloric acid to obtain hydrogen chloride not only increases the production cost, but also produces a large amount of waste liquid while obtaining hydrogen chloride, causing environmental pollution. In view of this, most manufacturers have to purchase Chloromethyl ether is used in the production of anion resin

Method used

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  • Anion exchange resin production system and production process
  • Anion exchange resin production system and production process
  • Anion exchange resin production system and production process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1: with reference to attached Figure 1~4 . The production system of anion exchange resin, it comprises chloromethyl ether production system, chloromethylation system, chlorine ball cleaning system, amination reaction system, water washing device, described chloromethylation production system outlet all the way and chlorine ball cleaning system The outlet of the chlorination mother liquor recovery system is connected with the inlet of the chloromethylation system and constitutes a chlorination mother liquor recycling and chloromethyl ether production loop.

[0033] In the chloromethyl ether production system, the inlet of the buffer tank 1 is connected with hydrogen chloride gas, and the outlet is connected with the inlet of the main chlorination reactor 2 through valves and pipelines, and the outlet of the main chlorination reactor 2 is connected with the intermediate chlorination reaction through valves and pipelines. The outlet of kettle 3 is communicated...

Embodiment 2

[0035]Embodiment 2: On the basis of embodiment 1, anion exchange resin production process, it comprises chloromethyl ether production process, chloromethylation production process, chlorine ball cleaning process, amination reaction, washing process, finally gets finished product anion resin , the chloromethyl ether required for the first production of anionic resin is produced by the chemical reaction of solid formaldehyde, methanol, and gaseous hydrochloric acid, the chlorination mother liquor produced by the chloromethylation production process and the washing liquid produced by the chlorine ball cleaning process It is sent to the recovery process of chlorination liquid, and the chlorinated methanol in the chlorination mother liquor reacts with the added solid formaldehyde and hydrogen chloride gas to obtain chloromethyl ether, which is directly used as the raw material for the production of circulating anion resin, so that chloromethyl ether is obtained by recycling.

[0036...

Embodiment 3

[0037] Embodiment 3: On the basis of embodiment 2, hydrogen chloride gas 20, chlorinated methanol 70%, solid formaldehyde 10%.

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Abstract

The invention relates to an anion exchange resin production system and production process, which includes chloromethyl ether production process, chloromethylation production process, chlorine ball cleaning process, amination reaction, water washing process, and finally obtains a finished anion resin. The chloromethyl ether required for the production of anion resins is produced by the chemical reaction of solid formaldehyde, methanol, and gaseous hydrochloric acid. It is characterized in that: the chlorination mother liquor produced by the chloromethylation production process and the chlorine ball cleaning process produce The washing liquid is sent to the chlorination liquid recovery process, and the chlorinated methanol in the chlorination mother liquor reacts with the added solid formaldehyde and hydrogen chloride gas to obtain chloromethyl ether, which is directly used as the raw material for the production of circulating anion resin, and thus chloromethyl ether is obtained by recycling.

Description

technical field [0001] The invention relates to an anion exchange resin production system and production process, belonging to the field of anion resin production equipment and production methods. Background technique [0002] In the existing system and production process of anion effect resin, the first is the preparation of chloromethyl ether, which adopts the reaction of methanol with liquid formaldehyde and chlorosulfonic acid to prepare chloromethyl ether, and the reaction formula is: methanol+liquid formaldehyde+chlorine Sulfonic acid → chloromethyl ether + sulfuric acid. Its shortcoming is: although the preparation of this technology can obtain chloromethyl ether, but when producing chloromethyl ether, produced the sulfuric acid containing HCL, this sulfuric acid not only can't be used for the production of phosphate fertilizer, and directly affects the environment Produce serious pollution; The 2nd, adopt liquid formaldehyde and hydrochloric acid to participate in c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J41/12B01J41/13
Inventor 沈建华汪选明劳法勇钟轶泠
Owner NINGBO ZHENGGUANG RESIN CO LTD