CN106890478A - High purity reagent acetonitrile removes formaldehyde, acetaldehyde adsorbent equipment - Google Patents
High purity reagent acetonitrile removes formaldehyde, acetaldehyde adsorbent equipment Download PDFInfo
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- CN106890478A CN106890478A CN201510965438.8A CN201510965438A CN106890478A CN 106890478 A CN106890478 A CN 106890478A CN 201510965438 A CN201510965438 A CN 201510965438A CN 106890478 A CN106890478 A CN 106890478A
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- acetonitrile
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C253/00—Preparation of carboxylic acid nitriles
- C07C253/32—Separation; Purification; Stabilisation; Use of additives
- C07C253/34—Separation; Purification
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Abstract
High purity reagent acetonitrile removes aldehyde type impurities adsorbent and adsorbent equipment, the device is made up of lightness-removing column kettle surge tank, acetonitrile adsorption tanks, acetonitrile absorption groove, the part of adsorbent reactivation tank four, lightness-removing column kettle surge tank adsorbs feed pump and is connected with acetonitrile adsorption tanks by acetonitrile, the material outlet of acetonitrile absorption pot bottom is divided into two branch roads, one branch road adsorbs groove and is connected as acetonitrile material outlet, by acetonitrile material outlet valve and acetonitrile.Another branch road is connected by adsorbent outlet valve as adsorbent outlet with adsorbent reactivation tank.Exhaust outlet, adsorbent import, visor, pure water inlet and acetonitrile material inlet are arranged at the specially treated adsorbent of filling in acetonitrile adsorption tanks, acetonitrile adsorption tanks top, and liquid distribution trough is provided with acetonitrile material inlet.Wherein, exhaust outlet, adsorbent import, visor are shared.Acetonitrile absorption pot bottom has nitrogen inlet, and material outlet is provided with stainless steel filtering net.
Description
Technical field
The invention belongs to high purity reagent acetonitrile production and processing technical field, it is related to a kind of high purity reagent acetonitrile to remove formaldehyde, acetaldehyde adsorbent equipment.
Background technology
The production of high purity reagent acetonitrile is the process of rectifying purifying, and traditional handicraft is that the impurity such as the formaldehyde in grade acetonitrile, acetaldehyde, propionitrile, acrylonitrile are removed by rectifying mode, obtains ethane nitrile content >=99.9% high purity reagent acetonitrile.But, the light component impurity such as formaldehyde, acetaldehyde cannot completely be removed by rectifying, formaldehyde, acetaldehyde total content≤0.0004% after rectifying, such high purity reagent are only capable of meeting low-end applications field（Separation, extraction such as medicine）Demand, the use requirement of new drug development and semicon industry cannot be met, and new drug development and semicon industry occupy the market of high purity reagent 80 ~ 85%, at present, new drug development and semicon industry high purity reagent are monopolized by import brand, and the removal of the impurity such as formaldehyde, acetaldehyde turns into the technical bottleneck of domestic high purity reagent production.
The content of the invention
The present invention is in high purity reagent acetonitrile production technology, the trace impurities such as formaldehyde, acetaldehyde cannot be completely removed by rectifying, causing high purity reagent cannot meet the phenomenon of new drug development and semicon industry demand, there is provided a kind of high purity reagent acetonitrile removes formaldehyde, acetaldehyde adsorbent equipment.The device is by lightness-removing column kettle surge tank (1), acetonitrile adsorption tanks（3）, acetonitrile absorption groove（14）, adsorbent reactivation tank（15）Four parts are constituted, lightness-removing column kettle surge tank（1）Feed pump is adsorbed by acetonitrile（2）With acetonitrile adsorption tanks（3）It is connected, acetonitrile adsorption tanks（3）The material outlet of bottom（9）Be divided into two branch roads, a branch road as acetonitrile material outlet, by acetonitrile material outlet valve（12）Groove is adsorbed with acetonitrile（14）It is connected.Another branch road as adsorbent outlet, by adsorbent outlet valve（13）With adsorbent reactivation tank（15）It is connected.Acetonitrile adsorption tanks（3）The specially treated adsorbent of interior filling（16）, acetonitrile adsorption tanks（3）Exhaust outlet is arranged at top（6）, adsorbent import（7）, visor（8）, pure water inlet（5）And acetonitrile material inlet（4）, acetonitrile material inlet（4）On liquid distribution trough is installed（17）.Wherein, exhaust outlet（6）, adsorbent import（7）, visor（8）Share.Acetonitrile adsorption tanks（3）Nitrogen inlet is arranged at bottom（10）, material outlet（9）Stainless steel filtering net is installed（11）.
Using above-mentioned technical proposal, under high pure nitrogen protection, by by the adsorbent of specially treated（16）It is filled to acetonitrile adsorption tanks（3）80% volume.Lightness-removing column kettle surge tank（1）The acetonitrile material of trace formaldehyde, acetaldehyde impurities is contained within, feed pump is adsorbed by acetonitrile（2）, by lightness-removing column kettle surge tank（1）Interior acetonitrile material is delivered to acetonitrile adsorption tanks（3）The acetonitrile material inlet at top（4）, acetonitrile material is by liquid distribution trough（17）It is evenly distributed on acetonitrile adsorption tanks（3）It is interior, from top to bottom with adsorbent（16）It is fully contacted, from acetonitrile adsorption tanks（3）The material outlet of bottom（9）Through stainless steel filtering net（11）Filtering, through acetonitrile material outlet valve（12）, groove is adsorbed into acetonitrile（14）.Acetonitrile adsorption tanks（3）Interior adsorbent（16）Reach when saturation is adsorbed, it is necessary to change acetonitrile adsorption tanks（3）Interior adsorbent（16）, stop the turnover of acetonitrile material, open acetonitrile adsorption tanks（3）Bottoms material is exported（9）, remove stainless steel filtering net（11）, open adsorbent outlet valve（13）, by adsorbent（16）Together with acetonitrile discharge of materials to adsorbent reactivation tank（15）, the adsorbent of failure（16）In adsorbent reactivation tank（15）Inside regenerated.Open acetonitrile adsorption tanks（3）The pure water inlet at top（5）, by acetonitrile adsorption tanks（3）Rinse well, open acetonitrile adsorption tanks（3）Bottom high pure nitrogen import（10）, by acetonitrile adsorption tanks（3）After drying, under nitrogen protection, effective adsorbent is loaded（16）.By after said apparatus treatment, formaldehyde, acetaldehyde in acetonitrile material can be removed completely, can produce the high purity reagent acetonitrile of high-quality.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Specific embodiment：
Embodiment：A kind of high purity reagent acetonitrile removes formaldehyde, acetaldehyde adsorbent equipment.The device is by lightness-removing column kettle surge tank (1), acetonitrile adsorption tanks（3）, acetonitrile absorption groove（14）, adsorbent reactivation tank（15）Four parts are constituted, lightness-removing column kettle surge tank（1）Feed pump is adsorbed by acetonitrile（2）With acetonitrile adsorption tanks（3）It is connected, acetonitrile adsorption tanks（3）The material outlet of bottom（9）Be divided into two branch roads, a branch road as acetonitrile material outlet, by acetonitrile material outlet valve（12）Groove is adsorbed with acetonitrile（14）It is connected.Another branch road as adsorbent outlet, by adsorbent outlet valve（13）With adsorbent reactivation tank（15）It is connected.Acetonitrile adsorption tanks（3）The specially treated adsorbent of interior filling（16）, acetonitrile adsorption tanks（3）Exhaust outlet is arranged at top（6）, adsorbent import（7）, visor（8）, pure water inlet（5）And acetonitrile material inlet（4）, acetonitrile material inlet（4）On liquid distribution trough is installed（17）.Wherein, exhaust outlet（6）, adsorbent import（7）, visor（8）Share.Acetonitrile adsorption tanks（3）Nitrogen inlet is arranged at bottom（10）, material outlet（9）Stainless steel filtering net is installed（11）.
Under high pure nitrogen protection, by by the adsorbent of specially treated（16）It is filled to acetonitrile adsorption tanks（3）80% volume.Lightness-removing column kettle surge tank（1）The acetonitrile material of trace formaldehyde, acetaldehyde impurities is contained within, feed pump is adsorbed by acetonitrile（2）, by lightness-removing column kettle surge tank（1）Interior acetonitrile material is delivered to acetonitrile adsorption tanks（3）The acetonitrile material inlet at top（4）, acetonitrile material is by liquid distribution trough（17）It is evenly distributed on acetonitrile adsorption tanks（3）It is interior, from top to bottom with adsorbent（16）It is fully contacted, from acetonitrile adsorption tanks（3）The material outlet of bottom（9）Through stainless steel filtering net（11）Filtering, through acetonitrile material outlet valve（12）, groove is adsorbed into acetonitrile（14）.Acetonitrile adsorption tanks（3）Interior adsorbent（16）Reach when saturation is adsorbed, it is necessary to change acetonitrile adsorption tanks（3）Interior adsorbent（16）, stop the turnover of acetonitrile material, open acetonitrile adsorption tanks（3）Bottoms material is exported（9）, remove stainless steel filtering net（11）, open adsorbent outlet valve（13）, by adsorbent（16）Together with acetonitrile discharge of materials to adsorbent reactivation tank（15）, the adsorbent of failure（16）In adsorbent reactivation tank（15）Inside regenerated.Open acetonitrile adsorption tanks（3）The pure water inlet at top（5）, by acetonitrile adsorption tanks（3）Rinse well, open acetonitrile adsorption tanks（3）Bottom high pure nitrogen import（10）, by acetonitrile adsorption tanks（3）After drying, under nitrogen protection, effective adsorbent is loaded（16）.
Claims (3)
1. high purity reagent acetonitrile removes formaldehyde, acetaldehyde adsorbent equipment, and the device is by lightness-removing column kettle surge tank (1), acetonitrile adsorption tanks（3）, acetonitrile absorption groove（14）, adsorbent reactivation tank（15）Four parts are constituted, lightness-removing column kettle surge tank（1）Feed pump is adsorbed by acetonitrile（2）With acetonitrile adsorption tanks（3）It is connected, acetonitrile adsorption tanks（3）The material outlet of bottom（9）Be divided into two branch roads, a branch road as acetonitrile material outlet, by acetonitrile material outlet valve（12）Groove is adsorbed with acetonitrile（14）Be connected, another branch road as adsorbent outlet, by adsorbent outlet valve（13）With adsorbent reactivation tank（15）It is connected, acetonitrile adsorption tanks（3）The specially treated adsorbent of interior filling（16）, acetonitrile adsorption tanks（3）Exhaust outlet is arranged at top（6）, adsorbent import（7）, visor（8）, pure water inlet（5）And acetonitrile material inlet（4）, acetonitrile material inlet（4）On liquid distribution trough is installed（17）, wherein, exhaust outlet（6）, adsorbent import（7）, visor（8）Share, acetonitrile adsorption tanks（3）Nitrogen inlet is arranged at bottom（10）, material outlet（9）Stainless steel filtering net is installed（11）.
2. high purity reagent acetonitrile as claimed in claim 1 removes formaldehyde, acetaldehyde adsorbent equipment, it is characterised in that：Under high pure nitrogen protection, by by the adsorbent of specially treated（16）It is filled to acetonitrile adsorption tanks（3）80% volume, lightness-removing column kettle surge tank（1）The acetonitrile material of trace formaldehyde, acetaldehyde impurities is contained within, feed pump is adsorbed by acetonitrile（2）, by lightness-removing column kettle surge tank（1）Interior acetonitrile material is delivered to acetonitrile adsorption tanks（3）The acetonitrile material inlet at top（4）, acetonitrile material is by liquid distribution trough（17）It is evenly distributed on acetonitrile adsorption tanks（3）It is interior, from top to bottom with adsorbent（16）It is fully contacted, from acetonitrile adsorption tanks（3）The material outlet of bottom（9）Through stainless steel filtering net（11）Filtering, through acetonitrile material outlet valve（12）, groove is adsorbed into acetonitrile（14）.
3. high purity reagent acetonitrile as claimed in claim 2 removes formaldehyde, acetaldehyde adsorbent equipment, it is characterised in that：Acetonitrile adsorption tanks（3）Interior adsorbent（16）Reach when saturation is adsorbed, it is necessary to change acetonitrile adsorption tanks（3）Interior adsorbent（16）, stop the turnover of acetonitrile material, open acetonitrile adsorption tanks（3）Bottoms material is exported（9）, remove stainless steel filtering net（11）, open adsorbent outlet valve（13）, by adsorbent（16）Together with acetonitrile discharge of materials to adsorbent reactivation tank（15）, the adsorbent of failure（16）In adsorbent reactivation tank（15）Inside regenerated, opened acetonitrile adsorption tanks（3）The pure water inlet at top（5）, by acetonitrile adsorption tanks（3）Rinse well, open acetonitrile adsorption tanks（3）Bottom high pure nitrogen import（10）, by acetonitrile adsorption tanks（3）After drying, under nitrogen protection, effective adsorbent is loaded（16）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510965438.8A CN106890478A (en) | 2015-12-21 | 2015-12-21 | High purity reagent acetonitrile removes formaldehyde, acetaldehyde adsorbent equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510965438.8A CN106890478A (en) | 2015-12-21 | 2015-12-21 | High purity reagent acetonitrile removes formaldehyde, acetaldehyde adsorbent equipment |
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| CN106890478A true CN106890478A (en) | 2017-06-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109085260A (en) * | 2018-07-16 | 2018-12-25 | 广东工业大学 | A method of the purifying residual grade acetonitrile of agriculture |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1173489A (en) * | 1996-06-20 | 1998-02-18 | 日东化学工业株式会社 | Purification of nitrile |
| US20120264662A1 (en) * | 2011-03-24 | 2012-10-18 | Dibiase Stephen A | Functionalized monomers |
| CN102746189A (en) * | 2012-07-24 | 2012-10-24 | 国药集团化学试剂有限公司 | Method for preparing chromatographically pure acetonitrile |
| CN103772234A (en) * | 2013-12-25 | 2014-05-07 | 中国石油集团东北炼化工程有限公司吉林设计院 | Acetonitrile refining process |
| CN205549679U (en) * | 2015-12-21 | 2016-09-07 | 赵志峰 | High purity reagent acetonitrile formaldehyde removal , acetaldehyde adsorption equipment |
-
2015
- 2015-12-21 CN CN201510965438.8A patent/CN106890478A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1173489A (en) * | 1996-06-20 | 1998-02-18 | 日东化学工业株式会社 | Purification of nitrile |
| US20120264662A1 (en) * | 2011-03-24 | 2012-10-18 | Dibiase Stephen A | Functionalized monomers |
| CN102746189A (en) * | 2012-07-24 | 2012-10-24 | 国药集团化学试剂有限公司 | Method for preparing chromatographically pure acetonitrile |
| CN103772234A (en) * | 2013-12-25 | 2014-05-07 | 中国石油集团东北炼化工程有限公司吉林设计院 | Acetonitrile refining process |
| CN205549679U (en) * | 2015-12-21 | 2016-09-07 | 赵志峰 | High purity reagent acetonitrile formaldehyde removal , acetaldehyde adsorption equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109085260A (en) * | 2018-07-16 | 2018-12-25 | 广东工业大学 | A method of the purifying residual grade acetonitrile of agriculture |
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Effective date of registration: 20200131 Address after: 653100 middle section of Chunhui Road, high tech Industrial Development Zone, Yuxi City, Yunnan Province Applicant after: Yunnan Xinlanjing Chemical and Industrial Company Limited Address before: High tech Zone in Yunnan city of Yuxi province Chunhui road 653100 Yunnan Chemical Industry Co. Ltd. Applicant before: Zhao Zhifeng |
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Application publication date: 20170627 |
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