CN111909035B - 一种降低废弃物排放的四氟对苯二酸的制备方法 - Google Patents
一种降低废弃物排放的四氟对苯二酸的制备方法 Download PDFInfo
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- CN111909035B CN111909035B CN202010829223.4A CN202010829223A CN111909035B CN 111909035 B CN111909035 B CN 111909035B CN 202010829223 A CN202010829223 A CN 202010829223A CN 111909035 B CN111909035 B CN 111909035B
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- acid
- reaction
- tetrafluoro
- weight
- terephthalonitrile
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- 239000002699 waste material Substances 0.000 title claims abstract description 21
- WFNRNCNCXRGUKN-UHFFFAOYSA-N 2,3,5,6-tetrafluoroterephthalic acid Chemical compound OC(=O)C1=C(F)C(F)=C(C(O)=O)C(F)=C1F WFNRNCNCXRGUKN-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims abstract description 29
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims abstract description 24
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 18
- PCRSJGWFEMHHEW-UHFFFAOYSA-N 2,3,5,6-tetrafluorobenzene-1,4-dicarbonitrile Chemical compound FC1=C(F)C(C#N)=C(F)C(F)=C1C#N PCRSJGWFEMHHEW-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229960000583 acetic acid Drugs 0.000 claims abstract description 12
- 239000002253 acid Substances 0.000 claims abstract description 12
- 239000012362 glacial acetic acid Substances 0.000 claims abstract description 12
- 238000010992 reflux Methods 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 3
- 230000035484 reaction time Effects 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000000779 smoke Substances 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 6
- 238000001816 cooling Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000004811 liquid chromatography Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000005292 vacuum distillation Methods 0.000 description 2
- PQLVXDKIJBQVDF-UHFFFAOYSA-N acetic acid;hydrate Chemical compound O.CC(O)=O PQLVXDKIJBQVDF-UHFFFAOYSA-N 0.000 description 1
- 239000007810 chemical reaction solvent Substances 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/08—Preparation of carboxylic acids or their salts, halides or anhydrides from nitriles
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
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Claims (1)
Priority Applications (1)
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CN202010829223.4A CN111909035B (zh) | 2020-08-18 | 2020-08-18 | 一种降低废弃物排放的四氟对苯二酸的制备方法 |
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CN202010829223.4A CN111909035B (zh) | 2020-08-18 | 2020-08-18 | 一种降低废弃物排放的四氟对苯二酸的制备方法 |
Publications (2)
Publication Number | Publication Date |
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CN111909035A CN111909035A (zh) | 2020-11-10 |
CN111909035B true CN111909035B (zh) | 2024-01-16 |
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CN202010829223.4A Active CN111909035B (zh) | 2020-08-18 | 2020-08-18 | 一种降低废弃物排放的四氟对苯二酸的制备方法 |
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Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2122190A (en) * | 1982-05-27 | 1984-01-11 | Ici Plc | Decarboxylation of halogenated benzoic acids or esters |
JPS61268649A (ja) * | 1985-05-24 | 1986-11-28 | Nippon Shokubai Kagaku Kogyo Co Ltd | 3,4,5,6−テトラフルオロフタル酸の製造方法 |
US4782180A (en) * | 1985-09-09 | 1988-11-01 | Warner-Lambert Company | Process for tetrafluorobenzoic acid |
US4791225A (en) * | 1986-01-20 | 1988-12-13 | Kyorin Pharmaceutical Co., Ltd. | Halogenobenzoic acid derivatives and their preparation |
JP2004256466A (ja) * | 2003-02-27 | 2004-09-16 | Nippon Shokubai Co Ltd | 2,3,4,5−テトラフルオロ安息香酸の製造方法 |
BRPI0608712A2 (pt) * | 2005-03-18 | 2010-12-07 | Basf Ag | processo para a preparação de composto, e, uso do composto |
CN103304377A (zh) * | 2013-06-14 | 2013-09-18 | 浙江中欣化工股份有限公司 | 一种2,3,5,6-四氟对苯二甲醇的合成方法 |
CN103483199A (zh) * | 2013-09-02 | 2014-01-01 | 浙江海昇化学有限公司 | 一种四氟对苯二甲酸酯的制备方法 |
CN111187154A (zh) * | 2018-11-15 | 2020-05-22 | 浙江九洲药业股份有限公司 | 一种西格列汀中间体2,4,5-三氟苯乙酸的合成方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1234678C (zh) * | 2000-07-04 | 2006-01-04 | 昭和电工株式会社 | 苯二甲醇化合物的制备方法 |
JP3933019B2 (ja) * | 2001-12-26 | 2007-06-20 | 昭和電工株式会社 | フッ素化ポリマー |
-
2020
- 2020-08-18 CN CN202010829223.4A patent/CN111909035B/zh active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2122190A (en) * | 1982-05-27 | 1984-01-11 | Ici Plc | Decarboxylation of halogenated benzoic acids or esters |
JPS61268649A (ja) * | 1985-05-24 | 1986-11-28 | Nippon Shokubai Kagaku Kogyo Co Ltd | 3,4,5,6−テトラフルオロフタル酸の製造方法 |
US4782180A (en) * | 1985-09-09 | 1988-11-01 | Warner-Lambert Company | Process for tetrafluorobenzoic acid |
US4791225A (en) * | 1986-01-20 | 1988-12-13 | Kyorin Pharmaceutical Co., Ltd. | Halogenobenzoic acid derivatives and their preparation |
JP2004256466A (ja) * | 2003-02-27 | 2004-09-16 | Nippon Shokubai Co Ltd | 2,3,4,5−テトラフルオロ安息香酸の製造方法 |
BRPI0608712A2 (pt) * | 2005-03-18 | 2010-12-07 | Basf Ag | processo para a preparação de composto, e, uso do composto |
CN103304377A (zh) * | 2013-06-14 | 2013-09-18 | 浙江中欣化工股份有限公司 | 一种2,3,5,6-四氟对苯二甲醇的合成方法 |
CN103483199A (zh) * | 2013-09-02 | 2014-01-01 | 浙江海昇化学有限公司 | 一种四氟对苯二甲酸酯的制备方法 |
CN111187154A (zh) * | 2018-11-15 | 2020-05-22 | 浙江九洲药业股份有限公司 | 一种西格列汀中间体2,4,5-三氟苯乙酸的合成方法 |
Non-Patent Citations (2)
Title |
---|
2,3,5,6-四氟-4-甲基苯甲醇的合成研究;袁其亮;《化学世界》;20141231(第5期);第285-296页 * |
2,3,5,6-四氟-4-甲氧基甲基苯甲醇的合成研究;袁其亮;《化工生产与技术》;20131231;第20卷(第6期);第11-14页 * |
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Effective date of registration: 20240429 Address after: Room 425, Entrepreneurship Center, No. 516 Baling Middle Road, Yueyanglou District, Yueyang City, Hunan Province, 414000 Patentee after: Yueyang Qiancheng Chemical Co.,Ltd. Country or region after: China Address before: 414000 Green Chemical Industry Park, Yunxi District, Yueyang City, Hunan Province Patentee before: Zhou Min Country or region before: China Patentee before: Zhang Lei |