CN102816047B - Technology for removing ammonia in ammoniacal smell ethanol in tetramethylpiperidinol - Google Patents
Technology for removing ammonia in ammoniacal smell ethanol in tetramethylpiperidinol Download PDFInfo
- Publication number
- CN102816047B CN102816047B CN201210278422.6A CN201210278422A CN102816047B CN 102816047 B CN102816047 B CN 102816047B CN 201210278422 A CN201210278422 A CN 201210278422A CN 102816047 B CN102816047 B CN 102816047B
- Authority
- CN
- China
- Prior art keywords
- ammonia
- ethanol
- fixed bed
- technology
- tetramethylpiperidinol
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses a technology for removing ammonia in ammoniacal smell ethanol in tetramethylpiperidinol. The technology comprises an adsorption stage and an elution stage. The technology is characterized in that in the adsorption stage, an ammoniacal smell ethanol mixed solution enters into a highly acidic ion exchange resin fixed bed at a flow rate of 1 to 1.5L/min and liquid ammonia is adsorbed by a highly acidic ion exchange resin and eluate is a qualified ethanol solution; and in the elution stage, after adsorbed ammonia is saturated, the adsorbed ammonia is eluted from the highly acidic ion exchange resin fixed bed by a hydrochloric acid solution at a flow rate of 0.3L/min and liquid ammonia is recovered. The technology provided by the invention utilizes the highly acidic ion exchange resin fixed bed to treat ammonia in ethanol, replaces the existing neutralization ammonia-removal method, has simple processes, is convenient for operation and reduces energy consumption.
Description
Technical field
The present invention relates to a kind of ammonia-removal process, particularly the ammonia-removal process of ammonia taste ethanol in a kind of tetramethylpiperidinol.
Background technology
In tetramethylpiperidinol production process, its solvent comprises ethanol and a small amount of ammonia, and ammonia solution corrosive equipment, has impact to subsequent reactions simultaneously.Therefore, the major issue that liquefied ammonia becomes tetramethylpiperidinol production process how is removed in alcohol solvent, general, adopt chemical process process, ammonia salt is obtained through acid-base neutralisation, then through steps such as dewatering and desaltings, although can effectively remove a small amount of ammonia, but reactions steps is loaded down with trivial details, and the energy consumption that ethanol rectifying and dewatering process need is a large amount of.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, adopt the ammonia in highly acidic resin fixed bed process ethanol, the ammonia-removal process of ammonia taste ethanol in a kind of tetramethylpiperidinol is provided.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is as follows: the ammonia-removal process of ammonia taste ethanol in a kind of tetramethylpiperidinol, comprise absorption phase and elution stage, it is characterized in that, described absorption phase is: by ammonia taste alcohol mixeding liquid with the flow velocity of 1 ~ 1.5L/min, enter strong-acid ion exchange resin ADSORPTION IN A FIXED BED, liquefied ammonia is adsorbed on resin, effluent liquid is the ethanolic soln of ammonia content 0.5 ~ 0.8%, described elution stage is: after ammonia absorption is saturated, hydrochloric acid soln is adopted to be eluted from fixed bed by ammonia with the flow velocity of 0.3L/min, liquid ammonia recovery.
Preferably, described ammonia taste alcohol mixeding liquid, ammonia content is 5%.
The invention has the advantages that: adopt the ammonia in highly acidic resin fixed bed process ethanol, replace utilizing chemical neutralization method process ammonia, the method is simple, easy to operate, energy-saving and cost-reducing.
Embodiment
Embodiment 1
A, absorption phase: by ammonia taste alcohol mixeding liquid, enter highly acidic resin ADSORPTION IN A FIXED BED with the flow velocity of 1 L/min, liquid
Ammonia is adsorbed onto on resin, and absorption effluent liquid is qualified ethanolic soln, will be 0.5% by ammonia amount from 5%;
B, elution stage: after ammonia absorption is saturated, adopt hydrochloric acid soln to be eluted from fixed bed by ammonia with the flow velocity of 0.3L/min, liquid ammonia recovery.
Embodiment 2
A, absorption phase: by ammonia taste alcohol mixeding liquid, enter highly acidic resin ADSORPTION IN A FIXED BED with the flow velocity of 1.5 L/min, liquid
Ammonia is adsorbed onto on resin, and absorption effluent liquid is qualified ethanolic soln, will be 0.8% by ammonia amount from 5%;
Elution stage: after ammonia absorption is saturated, adopts hydrochloric acid soln to be eluted from fixed bed by ammonia with the flow velocity of 0.3L/min, liquid ammonia recovery.
Claims (2)
1. the ammonia-removal process of ammonia taste ethanol in a tetramethylpiperidinol, comprise absorption phase and elution stage, it is characterized in that, described absorption phase is: by ammonia taste alcohol mixeding liquid with the flow velocity of 1 ~ 1.5L/min, enter strong-acid ion exchange resin ADSORPTION IN A FIXED BED, liquefied ammonia is adsorbed on resin, effluent liquid is the ethanolic soln of ammonia content 0.5 ~ 0.8%, described elution stage is: after ammonia absorption is saturated, hydrochloric acid soln is adopted to be eluted from fixed bed by ammonia with the flow velocity of 0.3L/min, liquid ammonia recovery.
2. the ammonia-removal process of ammonia taste ethanol in a kind of tetramethylpiperidinol according to claim 1, is characterized in that: described ammonia taste alcohol mixeding liquid, ammonia content is 5%.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210278422.6A CN102816047B (en) | 2012-08-07 | 2012-08-07 | Technology for removing ammonia in ammoniacal smell ethanol in tetramethylpiperidinol |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210278422.6A CN102816047B (en) | 2012-08-07 | 2012-08-07 | Technology for removing ammonia in ammoniacal smell ethanol in tetramethylpiperidinol |
Publications (2)
Publication Number | Publication Date |
---|---|
CN102816047A CN102816047A (en) | 2012-12-12 |
CN102816047B true CN102816047B (en) | 2014-12-24 |
Family
ID=47300550
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201210278422.6A Active CN102816047B (en) | 2012-08-07 | 2012-08-07 | Technology for removing ammonia in ammoniacal smell ethanol in tetramethylpiperidinol |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN102816047B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102499083B1 (en) * | 2017-11-13 | 2023-02-14 | 주식회사 엘지화학 | Method for purifying waste ethanol |
CN109053374B (en) * | 2018-06-20 | 2021-09-14 | 响水华夏特材科技发展有限公司 | Ammonia removal process for ammonia-containing ethanol in aerogel production |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN85101146A (en) * | 1985-04-01 | 1987-01-17 | 三菱金属株式会社 | Processing contains the method for ammonium and fluorium ion liquid |
WO2002079087A1 (en) * | 2001-03-29 | 2002-10-10 | Kemira Chemicals Oy | Recovery of ammonium nitrogen from wastewater |
US20030215377A1 (en) * | 1997-03-31 | 2003-11-20 | Blonigen Scott J. | Apparatus and method for ammonia removal from waste streams |
CN101497554A (en) * | 2008-01-25 | 2009-08-05 | 气体产品与化学公司 | Method for removing ammonia from a methanol containing stream |
-
2012
- 2012-08-07 CN CN201210278422.6A patent/CN102816047B/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN85101146A (en) * | 1985-04-01 | 1987-01-17 | 三菱金属株式会社 | Processing contains the method for ammonium and fluorium ion liquid |
US20030215377A1 (en) * | 1997-03-31 | 2003-11-20 | Blonigen Scott J. | Apparatus and method for ammonia removal from waste streams |
WO2002079087A1 (en) * | 2001-03-29 | 2002-10-10 | Kemira Chemicals Oy | Recovery of ammonium nitrogen from wastewater |
CN101497554A (en) * | 2008-01-25 | 2009-08-05 | 气体产品与化学公司 | Method for removing ammonia from a methanol containing stream |
Non-Patent Citations (2)
Title |
---|
2,2’,6,6’-四甲基哌啶酮生产工艺的改造和优化;夏跃雄等;《塑料助剂》;20061231(第5期);第46-48页 * |
强酸性阳离子交换树脂对焦化废水中氨氮的去除作用;刘宝敏等;《郑州工程学院学报》;20030331;第24卷(第1期);第46-49页 * |
Also Published As
Publication number | Publication date |
---|---|
CN102816047A (en) | 2012-12-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101337707B (en) | Method for processing dimethylamine waste water by ion-exchange method | |
CN105084671A (en) | Method for treating pyridine wastewater | |
Wei et al. | High-capacity adsorption of Cr (VI) from aqueous solution using a hierarchical porous carbon obtained from pig bone | |
CN101838064A (en) | Method for recycling manganese ion in electrolytic manganese production tail end wastewater | |
CN102417194A (en) | Method for deeply removing magnesium through chelating resin for extracting lithium from salt lake brine | |
CN109437462A (en) | A kind of processing method of pyridine waste water | |
CN102816047B (en) | Technology for removing ammonia in ammoniacal smell ethanol in tetramethylpiperidinol | |
WO2011099844A8 (en) | Removal of ammonia in urea finishing | |
CN102583822A (en) | Method for removing heavy metal ion in waste water generated by vanadium extraction | |
CN103073086B (en) | Method for adsorbing glycerol contained in wastewater by using resin treated by boric acid | |
CN105080624A (en) | Ion exchange resin regeneration method | |
CN100582019C (en) | Method for absorbing and reclaiming palladium from palladium-containing waste liquid by ion exchange resin | |
CN100364962C (en) | Method of recovering o-aminobenzoic acid from mother liquid or waste water | |
CN103691254A (en) | Method for reducing energy consumption of wet-process organic solvent recovering device | |
CN1923345A (en) | Process for removal of sulfate ions from organic amine absorbent | |
CN101648981A (en) | Extraction and refinement process of lincomycin | |
CN205182227U (en) | Stripper waste liquid regeneration stripper device | |
CN102675180A (en) | Method for extracting proline | |
CN102250093B (en) | Process for recovering theophylline sodium salt from theophylline sodium salt mother liquid | |
CN104261594A (en) | Method for treating medium-low concentration ammonia-nitrogen wastewater simply and effectively | |
CN104645942A (en) | Method for preparing bamboo shoot shell adsorbing material | |
CN103319019A (en) | Aspartame production mother solution recycling and treating method and system | |
CN104725212B (en) | Inhale the method for additional steam Desorption separation acetic acid/aqueous systems | |
CN101904530A (en) | Method for reducing content of heavy metal lead in nitrariatangutorum juice raw material by ion exchange method | |
CN102861555A (en) | Composite adsorbing material for removing iodide ions in water and preparation method of composite adsorbing material |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20200707 Address after: 223800 Six Road, North District, Suqian Economic Development Zone, Jiangsu Province Patentee after: SUQIAN ZHENXING CHEMICAL Co.,Ltd. Address before: 226500, Jiangsu province Nantong Rugao evergreen Town Village neighborhood committee 13 groups Patentee before: NANTONG CITY ZHENXING FINE CHEMICAL Co.,Ltd. |
|
TR01 | Transfer of patent right |