CN101555238B - 四氢呋喃回收的方法 - Google Patents
四氢呋喃回收的方法 Download PDFInfo
- Publication number
- CN101555238B CN101555238B CN2009101140840A CN200910114084A CN101555238B CN 101555238 B CN101555238 B CN 101555238B CN 2009101140840 A CN2009101140840 A CN 2009101140840A CN 200910114084 A CN200910114084 A CN 200910114084A CN 101555238 B CN101555238 B CN 101555238B
- Authority
- CN
- China
- Prior art keywords
- tetrahydrofuran
- thf
- liters
- calcium oxide
- dehydration
- 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.)
- Expired - Fee Related
Links
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 title claims abstract description 130
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000004064 recycling Methods 0.000 title abstract 2
- 238000004821 distillation Methods 0.000 claims abstract description 26
- 230000018044 dehydration Effects 0.000 claims abstract description 16
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 16
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000000292 calcium oxide Substances 0.000 claims abstract description 15
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000007818 Grignard reagent Substances 0.000 claims abstract description 11
- 150000004795 grignard reagents Chemical class 0.000 claims abstract description 11
- 239000000706 filtrate Substances 0.000 claims abstract description 9
- 239000002699 waste material Substances 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000001914 filtration Methods 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 18
- CCERQOYLJJULMD-UHFFFAOYSA-M magnesium;carbanide;chloride Chemical group [CH3-].[Mg+2].[Cl-] CCERQOYLJJULMD-UHFFFAOYSA-M 0.000 claims description 5
- OUUQCZGPVNCOIJ-UHFFFAOYSA-M Superoxide Chemical compound [O-][O] OUUQCZGPVNCOIJ-UHFFFAOYSA-M 0.000 claims description 4
- 239000003153 chemical reaction reagent Substances 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 150000002978 peroxides Chemical class 0.000 abstract 2
- 230000007423 decrease Effects 0.000 abstract 1
- 238000006722 reduction reaction Methods 0.000 abstract 1
- 231100000331 toxic Toxicity 0.000 abstract 1
- 230000002588 toxic effect Effects 0.000 abstract 1
- 239000010865 sewage Substances 0.000 description 7
- 239000002351 wastewater Substances 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 239000000047 product Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 2
- 239000001110 calcium chloride Substances 0.000 description 2
- 229910001628 calcium chloride Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000003270 steroid hormone Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- UREBDLICKHMUKA-CXSFZGCWSA-N dexamethasone Chemical compound C1CC2=CC(=O)C=C[C@]2(C)[C@]2(F)[C@@H]1[C@@H]1C[C@@H](C)[C@@](C(=O)CO)(O)[C@@]1(C)C[C@@H]2O UREBDLICKHMUKA-CXSFZGCWSA-N 0.000 description 1
- 229960003957 dexamethasone Drugs 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
Description
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009101140840A CN101555238B (zh) | 2009-05-21 | 2009-05-21 | 四氢呋喃回收的方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009101140840A CN101555238B (zh) | 2009-05-21 | 2009-05-21 | 四氢呋喃回收的方法 |
Publications (2)
Publication Number | Publication Date |
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CN101555238A CN101555238A (zh) | 2009-10-14 |
CN101555238B true CN101555238B (zh) | 2011-02-09 |
Family
ID=41173538
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN2009101140840A Expired - Fee Related CN101555238B (zh) | 2009-05-21 | 2009-05-21 | 四氢呋喃回收的方法 |
Country Status (1)
Country | Link |
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CN (1) | CN101555238B (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103936711B (zh) * | 2014-04-15 | 2016-10-05 | 北京蓝海黑石科技有限公司 | 一种降低1,3-丙磺酸内酯水分含量的方法 |
CN106008409A (zh) * | 2016-06-08 | 2016-10-12 | 泰山医学院 | 一种格式化反应溶剂用四氢呋喃的回收方法 |
CN106187954A (zh) * | 2016-07-08 | 2016-12-07 | 上海沃凯生物技术有限公司 | 一种制备无水级四氢呋喃的方法 |
WO2018039848A1 (zh) * | 2016-08-29 | 2018-03-08 | 沈建美 | 四氢呋喃的回收工艺 |
CN106749115A (zh) * | 2016-11-11 | 2017-05-31 | 上海沃凯生物技术有限公司 | 一种无水级四氢呋喃的制备方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1370774A (zh) * | 2001-02-27 | 2002-09-25 | 天津药业集团有限公司 | 四氢呋喃的回收工艺 |
-
2009
- 2009-05-21 CN CN2009101140840A patent/CN101555238B/zh not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1370774A (zh) * | 2001-02-27 | 2002-09-25 | 天津药业集团有限公司 | 四氢呋喃的回收工艺 |
Non-Patent Citations (1)
Title |
---|
郑先珏.四氢呋喃的回收提纯.《环境科学与技术》.1997,(第78期),14-16. * |
Also Published As
Publication number | Publication date |
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CN101555238A (zh) | 2009-10-14 |
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C14 | Grant of patent or utility model | ||
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EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20091014 Assignee: JIANGXI GANLIANG MEDICINE RAW MATERIAL CO., LTD. Assignor: Guangxi Wonder Pharmaceuticals Co., Ltd. Contract record no.: 2015360000049 Denomination of invention: Method for tetrahydrofuran recycling Granted publication date: 20110209 License type: Exclusive License Record date: 20150527 |
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LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
C56 | Change in the name or address of the patentee | ||
CP01 | Change in the name or title of a patent holder |
Address after: 530000, No. 152, Wu Hua Road, Nanning Economic Development Zone, Nanning, the Guangxi Zhuang Autonomous Region Patentee after: Guangxi Wande Pharmaceutical Co., Ltd. Address before: 530000, No. 152, Wu Hua Road, Nanning Economic Development Zone, Nanning, the Guangxi Zhuang Autonomous Region Patentee before: Guangxi Wonder Pharmaceuticals Co., Ltd. |
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PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Method for tetrahydrofuran recycling Effective date of registration: 20160929 Granted publication date: 20110209 Pledgee: Bank of Communications Ltd the Guangxi Zhuang Autonomous Region branch Pledgor: Guangxi Wande Pharmaceutical Co., Ltd. Registration number: 2016450000013 |
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PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20200521 |
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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: 20211020 Granted publication date: 20110209 Pledgee: Bank of Communications Ltd. the Guangxi Zhuang Autonomous Region branch Pledgor: GUANGXI WANDE PHARMACEUTICAL Co.,Ltd. Registration number: 2016450000013 |