CN208627025U - A kind of purifying plant of tetramethyl ammonium carbonate - Google Patents
A kind of purifying plant of tetramethyl ammonium carbonate Download PDFInfo
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- CN208627025U CN208627025U CN201820699136.XU CN201820699136U CN208627025U CN 208627025 U CN208627025 U CN 208627025U CN 201820699136 U CN201820699136 U CN 201820699136U CN 208627025 U CN208627025 U CN 208627025U
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- tetramethyl ammonium
- ammonium carbonate
- purifying plant
- nano filter
- anode chamber
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Abstract
A kind of purifying plant of tetramethyl ammonium carbonate, including anode chamber and cathode chamber, diaphragm is set between the anode chamber and cathode chamber, it is characterized by: the purifying plant further includes nano filter membrance device, the tetramethyl ammonium carbonate outlet of the anode chamber is connect by pump with pipeline with the import of the nano filter membrance device, the nano filter membrance device is equipped with material outlet, and the penetrating fluid outlet of the nano filter membrance device is connect by pump and pipeline with the concentrate entrance of the anode chamber.The utility model provides a kind of purifying plant for investing the low simple and environmentally-friendly good tetramethyl ammonium carbonate of property of plant maintenance.
Description
Technical field
The utility model relates to a kind of purifying plant of tetramethyl ammonium carbonate more particularly to a kind of use nanofiltration membrane purifications four
The purifying plant of methyl carbonic acid amine.
Background technique
Tetramethylammonium hydroxide is a kind of important organic base, it has, and there are two types of characteristics: (1) decomposition temperature is low, after decomposition
Become gas, noresidue；It (2) is organic alkali in itself, alkalinity is strong, non-metallic ion.The above characteristic makes it in electronic manufacture
Industry has important application.In electronic manufacture, metal impurities ion and anion in tetramethylammonium hydroxide are required in addition that
Impurity content is low, and if single metal ionic impurity is lower than 1ppb, anionic impurity ion is lower than 50ppb.
The method of preparation tetramethylammonium hydroxide is mainly electrolysis method at present.Point two step method is made: first step tetramethyl-ammonium
The synthesis of salt；Second step is converted into final products tetramethylammonium hydroxide by the method for electrolysis with ion-exchange film.Tetramethyl ammonium can
There are many, such as tetramethyl ammonium chloride, tetramethyl ammonium carbonate, tetramethyl ammonium nitrate etc..Wherein tetramethyl ammonium carbonate is most mainstream
Tetramethyl ammonium salt.
Tetramethyl ammonium carbonate is reacted in methyl alcohol by trimethylamine and dimethyl carbonate generates tetramethyl carbonic acid mono-methyl, passes through
Hydrolysis generates tetramethyl ammonium carbonate and methanol.Tetramethyl ammonium carbonate is continual by anode chamber in electrolytic process, in yin
Tetramethylammonium hydroxide is obtained in pole room.The tetramethylammonium hydroxide of high-purity in order to obtain, cationic membrane to high-valency metal from
Son has effect of shutting off, therefore high volence metal ion concentration can be continuously improved in anolyte, cause: 1. high volence metal ion films are saturating
Rate increase is crossed, reduces the purity (increase of high volence metal ion impurity) of tetramethylammonium hydroxide, 2. have metal in ion film surface
Alkali compound occurs, plug ion film, reduces current efficiency.
It is exchanged in removal anolyte in patent CN101314573A and CN103388155A by cation exchange resin
High volence metal ion.But cation exchange resin needs not stop to regenerate, consumption regenerated liquid and a large amount of waste water of generation.
Summary of the invention
The at high cost of purifying plant, the feature of environmental protection in order to overcome the shortcomings of existing tetramethyl ammonium carbonate is poor, this is practical new
Type provides a kind of purifying plant for investing the low simple and environmentally-friendly good tetramethyl ammonium carbonate of property of plant maintenance.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
A kind of purifying plant of tetramethyl ammonium carbonate, including anode chamber and cathode chamber, between the anode chamber and cathode chamber
Diaphragm is set, it is characterised in that: the purifying plant further includes nano filter membrance device, the tetramethyl ammonium carbonate outlet of the anode chamber
It is connect by pumping with pipeline with the import of the nano filter membrance device, the nano filter membrance device is equipped with material outlet, the nanofiltration membrane
The penetrating fluid outlet of device is connect by pump and pipeline with the concentrate entrance of the anode chamber.
Further, the nano filter membrance device includes the nanofiltration membrane of two-stage or more.
Further, the pressure of the nano filter membrance device is in 0.5~2Mpa.
The technical concept of the utility model are as follows: use Nanofiltration-membrane technique, by nanofiltration membrane shut off high valent cationic from
And reach the requirement for reducing high-valency metal impurity in anolyte.
The beneficial effects of the utility model are mainly manifested in: can efficiently be removed metal ion, be made anolyte tetramethyl carbon
Acid ammonium solution remains high volence metal ion lower than ppm grades, and dope can be used for the production of technical grade tetramethylammonium hydroxide.Dress
It sets and takes up little area, investment is low, and plant maintenance is simple, and no waste water generates.
Detailed description of the invention
Fig. 1 is the schematic diagram of the purifying plant of tetramethyl ammonium carbonate.
Specific embodiment
The utility model is further described with reference to the accompanying drawing.
Referring to Fig.1, a kind of purifying plant of tetramethyl ammonium carbonate, including anode chamber and cathode chamber, the anode chamber and yin
Diaphragm is set between pole room, it is characterised in that: the purifying plant further includes nano filter membrance device, the tetramethyl carbon of the anode chamber
Sour ammonium outlet is connect by pump with pipeline with the import of the nano filter membrance device, and the nano filter membrance device is equipped with material outlet, institute
The penetrating fluid outlet for stating nano filter membrance device is connect by pump and pipeline with the concentrate entrance of the anode chamber.
Further, the nano filter membrance device includes the nanofiltration membrane of two-stage or more.
Further, the pressure of the nano filter membrance device is in 0.5~2Mpa.
The technical concept of the utility model are as follows: use Nanofiltration-membrane technique, by nanofiltration membrane shut off high valent cationic from
And reach the requirement for reducing high-valency metal impurity in anolyte.
Embodiment 1
The tetramethyl ammonium carbonate of concentration 50% is subjected to nanofiltration processing, nanofiltration pressure 1.0Mpa, second level nanofiltration.
Ion concentration changes before and after the processing:
Before processing (ppm):
Li < 0.1, Na < 0.1, K < 0.1, Mg 0.3, Ca 3, Fe 10, Ni 0.5, Al 0.4, Pd < 0.1, Mn0.2；
After processing (ppm)
Li < 0.1, Na < 0.1, K < 0.1, Mg < 0.1, Ca < 0.1, Fe < 0.1, Ni < 0.1, Al < 0.1, Pd < 0.1, Mn < 0.1.
Embodiment 2
The tetramethyl ammonium carbonate of concentration 50% is subjected to nanofiltration processing, nanofiltration pressure 2.0Mpa, three-level nanofiltration.
Ion concentration changes before and after the processing:
Before processing (ppb):
Li < 1, Na 23, K 10, Mg 30, Ca 100, Fe 300, Ni 20, Al 130, Pd < 1, Mn < 1；
After processing (ppb)
Li < 1, Na 18, K 8, Mg 2, Ca 3, Fe 8, Ni < 1, Al 3, Pd < 1, Mn < 1.
Claims (3)
1. a kind of purifying plant of tetramethyl ammonium carbonate, including anode chamber and cathode chamber, set between the anode chamber and cathode chamber
Set diaphragm, it is characterised in that: the purifying plant further includes nano filter membrance device, and the tetramethyl ammonium carbonate outlet of the anode chamber is logical
It crosses pump to connect with pipeline with the import of the nano filter membrance device, the nano filter membrance device is equipped with material outlet, the nanofiltration membrane dress
The penetrating fluid outlet set is connect by pump and pipeline with the concentrate entrance of the anode chamber.
2. a kind of purifying plant of tetramethyl ammonium carbonate as described in claim 1, it is characterised in that: the nano filter membrance device packet
Nanofiltration membrane containing two-stage or more.
3. a kind of purifying plant of tetramethyl ammonium carbonate as claimed in claim 1 or 2, it is characterised in that: the nanofiltration membrane dress
The pressure set is in 0.5~2Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820699136.XU CN208627025U (en) | 2018-05-11 | 2018-05-11 | A kind of purifying plant of tetramethyl ammonium carbonate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820699136.XU CN208627025U (en) | 2018-05-11 | 2018-05-11 | A kind of purifying plant of tetramethyl ammonium carbonate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208627025U true CN208627025U (en) | 2019-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820699136.XU Active CN208627025U (en) | 2018-05-11 | 2018-05-11 | A kind of purifying plant of tetramethyl ammonium carbonate |
Country Status (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108392986A (en) * | 2018-05-11 | 2018-08-14 | 梁小朝 | A kind of purifying plant of tetramethyl ammonium carbonate |
| CN112999694A (en) * | 2021-03-24 | 2021-06-22 | 沧州信联化工有限公司 | Raw material refining device for processing tetramethylammonium hydroxide and use method thereof |
-
2018
- 2018-05-11 CN CN201820699136.XU patent/CN208627025U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108392986A (en) * | 2018-05-11 | 2018-08-14 | 梁小朝 | A kind of purifying plant of tetramethyl ammonium carbonate |
| CN112999694A (en) * | 2021-03-24 | 2021-06-22 | 沧州信联化工有限公司 | Raw material refining device for processing tetramethylammonium hydroxide and use method thereof |
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| TR01 | Transfer of patent right |
Effective date of registration: 20220725 Address after: 315048 A1 on the first floor of plant 6, No. 96, hibiscus Road, high tech Zone, Ningbo, Zhejiang Province Patentee after: Baichuan new material technology (Ningbo) Co.,Ltd. Address before: 310000 7-3-701, Jingfang Sixth District, Hangzhou City, Zhejiang Province Patentee before: Liang Xiaochao Patentee before: Yao Haochuan |
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| TR01 | Transfer of patent right |