CN101698652B - 一种tdi生产中循环溶剂的净化方法 - Google Patents
一种tdi生产中循环溶剂的净化方法 Download PDFInfo
- Publication number
- CN101698652B CN101698652B CN200910210659.9A CN200910210659A CN101698652B CN 101698652 B CN101698652 B CN 101698652B CN 200910210659 A CN200910210659 A CN 200910210659A CN 101698652 B CN101698652 B CN 101698652B
- Authority
- CN
- China
- Prior art keywords
- deip
- tdi
- nco
- agent
- reaction
- 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
- 239000002904 solvent Substances 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 34
- 125000004122 cyclic group Chemical group 0.000 title abstract 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000012535 impurity Substances 0.000 claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims description 38
- 239000000470 constituent Substances 0.000 claims description 25
- 239000003795 chemical substances by application Substances 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 22
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 14
- 238000000746 purification Methods 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 13
- 230000002000 scavenging effect Effects 0.000 claims description 10
- -1 polyoxyethylene Polymers 0.000 claims description 9
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 7
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- 229920001223 polyethylene glycol Polymers 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 6
- 241000282326 Felis catus Species 0.000 claims description 5
- 238000009833 condensation Methods 0.000 claims description 5
- 230000005494 condensation Effects 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 4
- 238000010992 reflux Methods 0.000 claims description 3
- 239000007791 liquid phase Substances 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 abstract description 12
- 235000019441 ethanol Nutrition 0.000 abstract description 8
- 239000000126 substance Substances 0.000 abstract description 7
- 150000001408 amides Chemical class 0.000 abstract description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract description 2
- 230000002159 abnormal effect Effects 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 239000004202 carbamide Substances 0.000 abstract description 2
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract 3
- 238000003672 processing method Methods 0.000 abstract 1
- VNGOYPQMJFJDLV-UHFFFAOYSA-N dimethyl benzene-1,3-dicarboxylate Chemical compound COC(=O)C1=CC=CC(C(=O)OC)=C1 VNGOYPQMJFJDLV-UHFFFAOYSA-N 0.000 description 57
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 44
- 239000002994 raw material Substances 0.000 description 10
- VOZKAJLKRJDJLL-UHFFFAOYSA-N tolylenediamine group Chemical group CC1=C(C=C(C=C1)N)N VOZKAJLKRJDJLL-UHFFFAOYSA-N 0.000 description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 8
- 239000006227 byproduct Substances 0.000 description 8
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 8
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- RFFLAFLAYFXFSW-UHFFFAOYSA-N 1,2-dichlorobenzene Chemical compound ClC1=CC=CC=C1Cl RFFLAFLAYFXFSW-UHFFFAOYSA-N 0.000 description 6
- 238000009835 boiling Methods 0.000 description 6
- JQVDAXLFBXTEQA-UHFFFAOYSA-N dibutylamine Chemical compound CCCCNCCCC JQVDAXLFBXTEQA-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000007086 side reaction Methods 0.000 description 5
- 0 CCOC(c1cc(*)ccc1)=O Chemical compound CCOC(c1cc(*)ccc1)=O 0.000 description 4
- 235000013877 carbamide Nutrition 0.000 description 4
- FLKPEMZONWLCSK-UHFFFAOYSA-N diethyl phthalate Chemical compound CCOC(=O)C1=CC=CC=C1C(=O)OCC FLKPEMZONWLCSK-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 3
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 3
- 125000001309 chloro group Chemical group Cl* 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 150000003672 ureas Chemical class 0.000 description 3
- CKDWPUIZGOQOOM-UHFFFAOYSA-N Carbamyl chloride Chemical compound NC(Cl)=O CKDWPUIZGOQOOM-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 238000010923 batch production Methods 0.000 description 2
- PASDCCFISLVPSO-UHFFFAOYSA-N benzoyl chloride Chemical compound ClC(=O)C1=CC=CC=C1 PASDCCFISLVPSO-UHFFFAOYSA-N 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000012948 isocyanate Substances 0.000 description 2
- 238000011020 pilot scale process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 150000004818 1,2-dichlorobenzenes Chemical class 0.000 description 1
- IFISKYCCDBYUAR-UHFFFAOYSA-N Cc(c(C#N)c1)ccc1N=C=O Chemical compound Cc(c(C#N)c1)ccc1N=C=O IFISKYCCDBYUAR-UHFFFAOYSA-N 0.000 description 1
- RFOCBNOTBWACMR-UHFFFAOYSA-N Cl.N=C=O Chemical compound Cl.N=C=O RFOCBNOTBWACMR-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000000266 alpha-aminoacyl group Chemical group 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- KCXMKQUNVWSEMD-UHFFFAOYSA-N benzyl chloride Chemical compound ClCC1=CC=CC=C1 KCXMKQUNVWSEMD-UHFFFAOYSA-N 0.000 description 1
- WGQKYBSKWIADBV-UHFFFAOYSA-N benzylamine Chemical compound NCC1=CC=CC=C1 WGQKYBSKWIADBV-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011437 continuous method Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000002290 gas chromatography-mass spectrometry Methods 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000001577 simple distillation Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200910210659.9A CN101698652B (zh) | 2009-11-05 | 2009-11-05 | 一种tdi生产中循环溶剂的净化方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200910210659.9A CN101698652B (zh) | 2009-11-05 | 2009-11-05 | 一种tdi生产中循环溶剂的净化方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101698652A CN101698652A (zh) | 2010-04-28 |
CN101698652B true CN101698652B (zh) | 2012-12-26 |
Family
ID=42147115
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN200910210659.9A Expired - Fee Related CN101698652B (zh) | 2009-11-05 | 2009-11-05 | 一种tdi生产中循环溶剂的净化方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN101698652B (zh) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101850232B (zh) * | 2010-06-25 | 2013-06-19 | 蓝星化工有限责任公司 | 第一脱邻二氯苯塔 |
CN104974010B (zh) * | 2014-04-01 | 2016-10-26 | 万华化学集团股份有限公司 | 一种光气法制异氰酸酯的溶剂精制方法及所使用的装置 |
CN104014174A (zh) * | 2014-06-18 | 2014-09-03 | 常州药物研究所有限公司 | 一种用于交联透明质酸钠生产的产品纯化装置 |
CN104311454A (zh) * | 2014-11-05 | 2015-01-28 | 朱忠良 | 一种甲苯二异氰酸酯的分离方法 |
CN105461594B (zh) * | 2015-12-14 | 2017-10-27 | 青岛科技大学 | 一种降低重溶剂法tdi产品酸值的方法 |
CN105503655B (zh) * | 2015-12-14 | 2017-07-04 | 青岛科技大学 | 一种用于重溶剂法tdi产品的酸值降低装置 |
CN105384633B (zh) * | 2015-12-14 | 2017-10-27 | 青岛科技大学 | 一种用于重溶剂法tdi残渣的连续式脱除方法 |
CN107382777B (zh) * | 2017-07-12 | 2020-06-26 | 山东益丰生化环保股份有限公司 | 一种降低异氰酸酯中氯代衍生物含量的方法 |
CN108744706A (zh) * | 2018-06-08 | 2018-11-06 | 福建省东南电化股份有限公司 | 一种光气溶液自动过滤装置 |
JP7285924B2 (ja) * | 2018-12-26 | 2023-06-02 | 万華化学集団股▲フン▼有限公司 | 気相でイソシアネートを調製する方法 |
CN110000193B (zh) * | 2019-04-16 | 2021-09-21 | 福建工程学院 | 一种用于处置tdi焦油残渣的方法 |
WO2022077429A1 (zh) * | 2020-10-16 | 2022-04-21 | 万华化学集团股份有限公司 | 光气化反应生产中的循环溶剂及其除杂方法 |
CN114380714B (zh) * | 2020-10-16 | 2023-08-11 | 万华化学集团股份有限公司 | 光气化反应生产中的循环溶剂及其除杂方法 |
WO2022147830A1 (zh) * | 2021-01-11 | 2022-07-14 | 万华化学集团股份有限公司 | 一种制备多异氰酸酯的方法及反应装置 |
CN114044746A (zh) * | 2021-12-07 | 2022-02-15 | 万华化学集团股份有限公司 | 一种低pi类物质含量异氰酸酯及其制备方法 |
CN116041219A (zh) * | 2022-12-16 | 2023-05-02 | 甘肃银光聚银化工有限公司 | 一种精制五亚甲基二异氰酸酯的方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1729165A (zh) * | 2002-12-19 | 2006-02-01 | 巴斯福股份公司 | 异氰酸酯的提纯方法 |
CN101100447A (zh) * | 2006-06-26 | 2008-01-09 | 拜尔材料科学股份公司 | 连续制备异氰酸酯的方法 |
CN101348446A (zh) * | 2008-04-25 | 2009-01-21 | 甘肃银光化学工业集团有限公司 | 用于tdi生产的光气脱除方法 |
-
2009
- 2009-11-05 CN CN200910210659.9A patent/CN101698652B/zh not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1729165A (zh) * | 2002-12-19 | 2006-02-01 | 巴斯福股份公司 | 异氰酸酯的提纯方法 |
CN101100447A (zh) * | 2006-06-26 | 2008-01-09 | 拜尔材料科学股份公司 | 连续制备异氰酸酯的方法 |
CN101348446A (zh) * | 2008-04-25 | 2009-01-21 | 甘肃银光化学工业集团有限公司 | 用于tdi生产的光气脱除方法 |
Non-Patent Citations (1)
Title |
---|
李井辉.甲苯二异氰酸酯生产技术研究进展.《辽宁化工》.2005,第34卷(第6期),255-257,270. * |
Also Published As
Publication number | Publication date |
---|---|
CN101698652A (zh) | 2010-04-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101698652B (zh) | 一种tdi生产中循环溶剂的净化方法 | |
EP1849767B1 (en) | Process for the production of isocyanates | |
KR101773630B1 (ko) | 용매 재순환을 이용한 이소시아네이트, 바람직하게는 디이소시아네이트 및 폴리이소시아네이트의 제조 방법 | |
JP5366580B2 (ja) | イソシアネートの製造方法 | |
RU2546125C2 (ru) | Способ получения изоцианатов | |
CN111630027B (zh) | 制备异氰酸酯的方法 | |
US9840461B2 (en) | Method for operating a gas-phase phosgenation plant | |
CN108290833B (zh) | 生产双(氟磺酰基)酰亚胺的方法 | |
US20070277551A1 (en) | Processes for separating chlorine from a gas stream containing chlorine, oxygen and carbon dioxide | |
US10703713B2 (en) | Process for preparing an isocyanate | |
JP6581581B2 (ja) | イソシアネート製造において生じる蒸留残渣から有機イソシアネートを取得する方法 | |
US9637574B2 (en) | Process and apparatus for preparing alkyl esters of methacrylic acid | |
CN107915662A (zh) | 分离、提纯间苯二亚甲基二异氰酸酯的装置及方法 | |
CN106458862A (zh) | 制备异氰酸酯的方法 | |
CN106458864B (zh) | 运行气相光气化装置的方法 | |
JP4271423B2 (ja) | ジメチルアミド化合物とカルボン酸を蒸留分離する方法及びその装置 | |
RU2740907C2 (ru) | Способ получения ксилилендиизоцианатов (xdi) | |
EP0611753A1 (en) | Improved process for urea production involving a carbon dioxide stripping step | |
US20100076214A1 (en) | Process for preparing cyanohydrins and their use in the preparation of alkyl esters of methacrylic acid | |
US3120568A (en) | Recovery of allyl chloride | |
WO2004033408A1 (en) | A process for the preparation of monochloroacetic acid | |
US20130245340A1 (en) | Apparatus and Process for Using a Nitroalkane as an Entrainer for Azeotropic Removal of Water from Aqueous Acid Solution | |
KR20220071200A (ko) | 알칸설폰산의 제조 공정 | |
CN111183131A (zh) | 有机胺的回收方法 | |
EP4112598A1 (en) | Method for producing purified phthalonitrile and method for purifying phthalonitrile |
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 | ||
ASS | Succession or assignment of patent right |
Owner name: CHEMICAL CO., LTD. GANSU SILVER POLY SILVER Free format text: FORMER OWNER: GANSU YINDA CHEMICALS CO., LTD.;QINGDAO UNIVERSITY OF SCIENCE AND TECHNOLOGY Effective date: 20130903 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20130903 Address after: 730900, No. 1, South Second Ring Road, Baiyin hi tech Industrial Park, Baiyin, Gansu Patentee after: Gansu Yinguang Juyin Chemical Industry Co., Ltd. Patentee after: Qingdao University of Science & Technology Address before: 730900 Gansu province Baiyin District Silver Road No. 1 Patentee before: Gansu Yinda Chemical Co., Ltd. Patentee before: Qingdao University of Science & Technology |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20151105 |
|
EXPY | Termination of patent right or utility model |