CN114621056B - 一种分离碳酸二甲酯和甲醇共沸物的工艺方法 - Google Patents
一种分离碳酸二甲酯和甲醇共沸物的工艺方法 Download PDFInfo
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- CN114621056B CN114621056B CN202210409435.6A CN202210409435A CN114621056B CN 114621056 B CN114621056 B CN 114621056B CN 202210409435 A CN202210409435 A CN 202210409435A CN 114621056 B CN114621056 B CN 114621056B
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims abstract description 283
- 238000000034 method Methods 0.000 title claims abstract description 73
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 238000000605 extraction Methods 0.000 claims abstract description 71
- 238000000746 purification Methods 0.000 claims abstract description 33
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000000895 extractive distillation Methods 0.000 claims abstract description 23
- 238000004821 distillation Methods 0.000 claims abstract description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 63
- 238000010992 reflux Methods 0.000 claims description 31
- 230000008929 regeneration Effects 0.000 claims description 20
- 238000011069 regeneration method Methods 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 11
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 239000007791 liquid phase Substances 0.000 claims description 4
- 238000005265 energy consumption Methods 0.000 abstract description 10
- 239000003795 chemical substances by application Substances 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 27
- 239000007788 liquid Substances 0.000 description 24
- 230000009286 beneficial effect Effects 0.000 description 8
- 238000000926 separation method Methods 0.000 description 8
- 239000006227 byproduct Substances 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 7
- 101150047356 dec-1 gene Proteins 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000004064 recycling Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- LOMVENUNSWAXEN-UHFFFAOYSA-N Methyl oxalate Chemical compound COC(=O)C(=O)OC LOMVENUNSWAXEN-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 238000010533 azeotropic distillation Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002032 methanolic fraction Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
- C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
- C07C29/80—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
- C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
- C07C29/80—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation
- C07C29/84—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation by extractive distillation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C68/00—Preparation of esters of carbonic or haloformic acids
- C07C68/08—Purification; Separation; Stabilisation
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims (8)
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CN202210409435.6A CN114621056B (zh) | 2022-04-19 | 2022-04-19 | 一种分离碳酸二甲酯和甲醇共沸物的工艺方法 |
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CN202210409435.6A CN114621056B (zh) | 2022-04-19 | 2022-04-19 | 一种分离碳酸二甲酯和甲醇共沸物的工艺方法 |
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CN114621056A CN114621056A (zh) | 2022-06-14 |
CN114621056B true CN114621056B (zh) | 2023-10-27 |
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103159586A (zh) * | 2013-03-26 | 2013-06-19 | 沈阳化工大学 | 碳酸二甲酯-甲醇共沸混合物连续萃取精馏分离方法 |
CN103626656A (zh) * | 2012-08-27 | 2014-03-12 | 亚申科技研发中心(上海)有限公司 | 热泵变压精馏分离碳酸二甲酯和甲醇的方法及装置 |
CN107032959A (zh) * | 2017-05-16 | 2017-08-11 | 华陆工程科技有限责任公司 | 一种热泵和多效耦合的甲醇精馏方法 |
CN108067012A (zh) * | 2018-01-17 | 2018-05-25 | 中国科学院过程工程研究所 | 一种用于萃取精馏分离甲醇和碳酸二甲酯共沸物的萃取剂及其用途和处理方法 |
CN112679316A (zh) * | 2021-01-25 | 2021-04-20 | 太原理工大学 | 一种甲醇和碳酸二甲酯共沸物连续分离方法 |
CN113354540A (zh) * | 2021-07-26 | 2021-09-07 | 华东理工大学 | 一种高效连续制备碳酸甲乙酯的方法 |
-
2022
- 2022-04-19 CN CN202210409435.6A patent/CN114621056B/zh active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103626656A (zh) * | 2012-08-27 | 2014-03-12 | 亚申科技研发中心(上海)有限公司 | 热泵变压精馏分离碳酸二甲酯和甲醇的方法及装置 |
CN103159586A (zh) * | 2013-03-26 | 2013-06-19 | 沈阳化工大学 | 碳酸二甲酯-甲醇共沸混合物连续萃取精馏分离方法 |
CN107032959A (zh) * | 2017-05-16 | 2017-08-11 | 华陆工程科技有限责任公司 | 一种热泵和多效耦合的甲醇精馏方法 |
CN108067012A (zh) * | 2018-01-17 | 2018-05-25 | 中国科学院过程工程研究所 | 一种用于萃取精馏分离甲醇和碳酸二甲酯共沸物的萃取剂及其用途和处理方法 |
CN112679316A (zh) * | 2021-01-25 | 2021-04-20 | 太原理工大学 | 一种甲醇和碳酸二甲酯共沸物连续分离方法 |
CN113354540A (zh) * | 2021-07-26 | 2021-09-07 | 华东理工大学 | 一种高效连续制备碳酸甲乙酯的方法 |
Non-Patent Citations (2)
Title |
---|
"用Reichardt’s Dye 研究碳酸酯溶剂极性的经验参数ET(30)";吴萌等;《化学学报》;第63卷(第9期);第787-790页 * |
"碳酸乙烯酯萃取精馏分离DMC-CH3OH恒沸物模拟";王海霞等;《天然气化工》;第32卷(第5期);第19-22页 * |
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Inventor after: Zhang Chunling Inventor after: Chen Zhe Inventor after: Mao Xuefeng Inventor after: Yu Xiugang Inventor after: Chen Xiuying Inventor after: Li Xiaogang Inventor after: Wang Zhen Inventor after: Liu Guoyong Inventor after: Qin Minghuan Inventor after: Li Jinling Inventor before: Zhang Chunling Inventor before: Chen Zhe Inventor before: Mao Xuefeng Inventor before: Yu Xiugang Inventor before: Chen Xiuying Inventor before: Li Xiaogang Inventor before: Wang Zhen Inventor before: Liu Guoyong Inventor before: Tan Minghuan Inventor before: Li Jinling |
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