CN1696104A - 一种高纯度乙酸乙酯提纯精制方法 - Google Patents
一种高纯度乙酸乙酯提纯精制方法 Download PDFInfo
- Publication number
- CN1696104A CN1696104A CN 200510025467 CN200510025467A CN1696104A CN 1696104 A CN1696104 A CN 1696104A CN 200510025467 CN200510025467 CN 200510025467 CN 200510025467 A CN200510025467 A CN 200510025467A CN 1696104 A CN1696104 A CN 1696104A
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- Prior art keywords
- ethyl acetate
- purifying
- high purity
- tower
- refining
- 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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- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 title claims abstract description 90
- 238000007670 refining Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000010992 reflux Methods 0.000 claims abstract description 10
- 150000002148 esters Chemical class 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000002253 acid Substances 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 14
- 238000012856 packing Methods 0.000 claims description 14
- 238000011049 filling Methods 0.000 claims description 9
- 238000004080 punching Methods 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 6
- 230000011218 segmentation Effects 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 5
- -1 aldehyde ketone Chemical class 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 abstract 3
- 239000000945 filler Substances 0.000 description 15
- 239000002184 metal Substances 0.000 description 8
- 239000000919 ceramic Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 241000282326 Felis catus Species 0.000 description 3
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 201000004569 Blindness Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- WBJINCZRORDGAQ-UHFFFAOYSA-N formic acid ethyl ester Natural products CCOC=O WBJINCZRORDGAQ-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000013178 mathematical model Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
Description
塔器型式及再沸器型式 | 原有散堆陶瓷填料塔,普通釜式再沸器 | 原有改进规整陶瓷填料塔,立式热虹吸式再沸器 | 金属塔板、金属填料混合塔,设置溢流挡板的釜式再沸器 | |
塔顶温度(℃) | 79.0±1.0 | 78.6±1.0 | 78.1±1.0 | |
塔釜温度(℃) | 85~100(随时间升高) | 85~95(随时间升高稳定<0.0027) | 81±1(稳定) | |
进料位置 | 塔釜 | 塔釜 | 第2块塔板上 | |
操作回流比 | 1.2~2.5(前期小,后期大) | 1.0~2.5(前期小,后期大) | 0.5(稳定) | |
塔压差(mmH2O) | 2500 | 1200 | 250 | |
塔顶产品(w/w)% | 酯 | 99.89 | 99.9 | 99.9 |
醇 | 0.08 | 0.08 | 0.079 | |
水 | 0.02 | 0.02 | 0.02 | |
酸 | 0.003(前期)~0.01(后期) | 0.003(前期)~0.009(后期) | 0.001(稳定<0.0027) | |
开车周期 | 一般小于3个月需要停车拉釜料一次 | 一般小于3个月需要停车拉釜料一次 | 实际已大于2年,釜料通过间歇或半间歇或连续方式排出 | |
塔釜酸度(w/w)% | 1(前期)~36(后期) | 1(前期)~36(后期) | 12.7(稳定) |
塔器型式及再沸器型式 | 金属塔板、金属填料混合塔,设置溢流挡板的釜式再沸器 | |
塔顶温度(℃) | 77.8 | |
塔釜温度(℃) | 84±1(稳定) | |
进料位置 | 两段填料之间 | |
操作回流比 | 0.3(稳定) | |
塔顶产品(w/w)% | 酯 | 99.88 |
醇 | 0.094 | |
水 | 0.021 | |
酸 | 0.002(稳定<0.0027) | |
乙酸甲酯 | 10ppm | |
塔釜酸度(w/w)% | 25.4(稳定) |
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2005100254672A CN1312105C (zh) | 2005-04-27 | 2005-04-27 | 一种高纯度乙酸乙酯提纯精制方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2005100254672A CN1312105C (zh) | 2005-04-27 | 2005-04-27 | 一种高纯度乙酸乙酯提纯精制方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1696104A true CN1696104A (zh) | 2005-11-16 |
CN1312105C CN1312105C (zh) | 2007-04-25 |
Family
ID=35349018
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2005100254672A Expired - Fee Related CN1312105C (zh) | 2005-04-27 | 2005-04-27 | 一种高纯度乙酸乙酯提纯精制方法 |
Country Status (1)
Country | Link |
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CN (1) | CN1312105C (zh) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100357250C (zh) * | 2006-01-18 | 2007-12-26 | 华南理工大学 | 乙酸乙酯脱水提纯的方法 |
CN101148407B (zh) * | 2007-10-16 | 2010-04-14 | 南京师范大学 | 连续侧线出料法提取酮康唑生产中乙酸乙酯的方法 |
CN102417450A (zh) * | 2011-12-26 | 2012-04-18 | 天津市康科德科技有限公司 | 一种色谱级乙酸丁酯的纯化方法 |
CN101747186B (zh) * | 2009-08-21 | 2012-10-03 | 中国计量科学研究院 | 一种农残级乙酸乙酯的制备方法 |
CN105085260A (zh) * | 2014-05-16 | 2015-11-25 | 上海星可高纯溶剂有限公司 | 液相色谱-质谱联用仪用乙酸乙酯的提纯方法 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1210851A (zh) * | 1997-09-08 | 1999-03-17 | 中国科学院成都有机化学研究所 | 一种提纯乙酸乙酯的方法 |
-
2005
- 2005-04-27 CN CNB2005100254672A patent/CN1312105C/zh not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100357250C (zh) * | 2006-01-18 | 2007-12-26 | 华南理工大学 | 乙酸乙酯脱水提纯的方法 |
CN101148407B (zh) * | 2007-10-16 | 2010-04-14 | 南京师范大学 | 连续侧线出料法提取酮康唑生产中乙酸乙酯的方法 |
CN101747186B (zh) * | 2009-08-21 | 2012-10-03 | 中国计量科学研究院 | 一种农残级乙酸乙酯的制备方法 |
CN102417450A (zh) * | 2011-12-26 | 2012-04-18 | 天津市康科德科技有限公司 | 一种色谱级乙酸丁酯的纯化方法 |
CN105085260A (zh) * | 2014-05-16 | 2015-11-25 | 上海星可高纯溶剂有限公司 | 液相色谱-质谱联用仪用乙酸乙酯的提纯方法 |
Also Published As
Publication number | Publication date |
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CN1312105C (zh) | 2007-04-25 |
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Owner name: SHANGHAI HUAYI ENERGY + CHEMICAL INDUSTRY CO., LTD Free format text: FORMER OWNER: WUJING CHEMICAL CO., LTD., SHANGHAI Effective date: 20150120 |
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Effective date of registration: 20150120 Address after: 200241 Minhang District, Wu Long Road, No. 4280, Shanghai Patentee after: SHANGHAI HUAYI ENERGY CHEMICAL CO.,LTD. Address before: 200241 No. 4600 Wu Long Road, Shanghai Patentee before: Shanghai Wujing Chemical Co.,Ltd. |
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Granted publication date: 20070425 |