CN202063852U - Laminar flow type reaction device for producing N-methyl pyrrolidone - Google Patents
Laminar flow type reaction device for producing N-methyl pyrrolidone Download PDFInfo
- Publication number
- CN202063852U CN202063852U CN2011201663668U CN201120166366U CN202063852U CN 202063852 U CN202063852 U CN 202063852U CN 2011201663668 U CN2011201663668 U CN 2011201663668U CN 201120166366 U CN201120166366 U CN 201120166366U CN 202063852 U CN202063852 U CN 202063852U
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- Prior art keywords
- laminar flow
- flow type
- flow formula
- methyl
- heat exchanger
- 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.)
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Abstract
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN2011201663668U CN202063852U (en) | 2011-05-24 | 2011-05-24 | Laminar flow type reaction device for producing N-methyl pyrrolidone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN2011201663668U CN202063852U (en) | 2011-05-24 | 2011-05-24 | Laminar flow type reaction device for producing N-methyl pyrrolidone |
Publications (1)
Publication Number | Publication Date |
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CN202063852U true CN202063852U (en) | 2011-12-07 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN2011201663668U Expired - Lifetime CN202063852U (en) | 2011-05-24 | 2011-05-24 | Laminar flow type reaction device for producing N-methyl pyrrolidone |
Country Status (1)
Country | Link |
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CN (1) | CN202063852U (en) |
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2011
- 2011-05-24 CN CN2011201663668U patent/CN202063852U/en not_active Expired - Lifetime
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee |
Owner name: MAIQI CHEMICAL CO., LTD. Free format text: FORMER NAME: PUYANG MYJ TECHNOLOGY CO., LTD. |
|
CP01 | Change in the name or title of a patent holder |
Address after: 457000 Shengli Road, Henan, Puyang Patentee after: Maiqi Chemical Co., Ltd. Address before: 457000 Shengli Road, Henan, Puyang Patentee before: Puyang Maiqi Technology Co., Ltd. |
|
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Reaction apparatus and reaction method for strataflo production of N-methyl-2-pyrrolidone Effective date of registration: 20141121 Granted publication date: 20111207 Pledgee: Bank of China, Limited by Share Ltd, Puyang branch Pledgor: Maiqi Chemical Co., Ltd. Registration number: 2014990000976 |
|
PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190813 Granted publication date: 20111207 Pledgee: Bank of China, Limited by Share Ltd, Puyang branch Pledgor: Maiqi Chemical Co., Ltd. Registration number: 2014990000976 |
|
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20111207 |