CN101077849B - 间甲乙苯与对甲乙苯的萃取精馏分离方法 - Google Patents
间甲乙苯与对甲乙苯的萃取精馏分离方法 Download PDFInfo
- Publication number
- CN101077849B CN101077849B CN2007100234127A CN200710023412A CN101077849B CN 101077849 B CN101077849 B CN 101077849B CN 2007100234127 A CN2007100234127 A CN 2007100234127A CN 200710023412 A CN200710023412 A CN 200710023412A CN 101077849 B CN101077849 B CN 101077849B
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- CN
- China
- Prior art keywords
- tower
- methylethylbenzene
- methyl ethyl
- ethyl benzene
- dibutyl phthalate
- 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
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- JRLPEMVDPFPYPJ-UHFFFAOYSA-N 1-ethyl-4-methylbenzene Chemical compound CCC1=CC=C(C)C=C1 JRLPEMVDPFPYPJ-UHFFFAOYSA-N 0.000 title claims abstract description 32
- ZLCSFXXPPANWQY-UHFFFAOYSA-N 3-ethyltoluene Chemical compound CCC1=CC=CC(C)=C1 ZLCSFXXPPANWQY-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 238000000926 separation method Methods 0.000 title claims abstract description 15
- 238000000605 extraction Methods 0.000 title claims description 9
- 238000004821 distillation Methods 0.000 title claims description 4
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000002904 solvent Substances 0.000 claims abstract description 26
- 239000011259 mixed solution Substances 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims description 14
- HYFLWBNQFMXCPA-UHFFFAOYSA-N 1-ethyl-2-methylbenzene Chemical compound CCC1=CC=CC=C1C HYFLWBNQFMXCPA-UHFFFAOYSA-N 0.000 claims description 10
- 238000000895 extractive distillation Methods 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 9
- 230000008929 regeneration Effects 0.000 claims description 7
- 238000011069 regeneration method Methods 0.000 claims description 7
- 238000010992 reflux Methods 0.000 claims description 6
- 238000005292 vacuum distillation Methods 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 claims 2
- DCKVNWZUADLDEH-UHFFFAOYSA-N sec-butyl acetate Chemical compound CCC(C)OC(C)=O DCKVNWZUADLDEH-UHFFFAOYSA-N 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract description 4
- 230000006837 decompression Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000013386 optimize process Methods 0.000 description 2
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
Description
工艺参数 | T-1塔 | T-2塔 |
理论塔板数 | 80 | 60 |
原料进料位置 | 20 | 25 |
溶剂进料位置 | 55 | |
溶剂/原料(质量流量比) | 6 | |
回流比 | 4~5 | 4~5 |
塔顶温度(℃) | 161.3 | 90-91 |
塔釜温度(℃) | 260-280 | 230 |
操作压力(mmHg) | 760 | 80 |
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2007100234127A CN101077849B (zh) | 2007-06-01 | 2007-06-01 | 间甲乙苯与对甲乙苯的萃取精馏分离方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2007100234127A CN101077849B (zh) | 2007-06-01 | 2007-06-01 | 间甲乙苯与对甲乙苯的萃取精馏分离方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101077849A CN101077849A (zh) | 2007-11-28 |
CN101077849B true CN101077849B (zh) | 2010-08-25 |
Family
ID=38905541
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2007100234127A Expired - Fee Related CN101077849B (zh) | 2007-06-01 | 2007-06-01 | 间甲乙苯与对甲乙苯的萃取精馏分离方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN101077849B (zh) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101575261B (zh) * | 2009-06-16 | 2013-04-03 | 南京师范大学 | 偏三甲苯与茚满的萃取精馏分离方法 |
CN102795957B (zh) * | 2011-05-27 | 2014-12-03 | 中国石油化工股份有限公司 | 一种萃取精馏分离间甲乙苯和对甲乙苯的方法 |
CN105503500B (zh) * | 2014-09-25 | 2017-07-14 | 中国石油化工股份有限公司 | C9芳烃萃取精馏间、对甲乙苯的组合萃取剂及分离方法 |
CN114213208B (zh) * | 2021-12-31 | 2024-01-30 | 黄河三角洲京博化工研究院有限公司 | 一种高效复合溶剂萃取精馏提纯均三甲苯的方法 |
-
2007
- 2007-06-01 CN CN2007100234127A patent/CN101077849B/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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CN101077849A (zh) | 2007-11-28 |
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Owner name: CHANGZHOU WINTAFONE CHEMICAL CO., LTD. Free format text: FORMER OWNER: NANJING NORMAL UNIVERSITY Effective date: 20120223 |
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Effective date of registration: 20120223 Address after: 213033, Jiangsu, Changzhou new town, North Town, Wei Tong River West Chemical West Patentee after: Changzhou Yongtaifeng Chemical Co.,Ltd. Address before: Nanjing City, Jiangsu province 210097 Ninghai Road No. 122 Patentee before: Nanjing Normal University |
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