BG45698A3 - Метод за получаване на диметилтерефталат - Google Patents
Метод за получаване на диметилтерефталатInfo
- Publication number
- BG45698A3 BG45698A3 BG069043A BG6904385A BG45698A3 BG 45698 A3 BG45698 A3 BG 45698A3 BG 069043 A BG069043 A BG 069043A BG 6904385 A BG6904385 A BG 6904385A BG 45698 A3 BG45698 A3 BG 45698A3
- Authority
- BG
- Bulgaria
- Prior art keywords
- methanol
- bar
- pressure
- esterification
- steam
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract 21
- 230000032050 esterification Effects 0.000 abstract 3
- 238000005886 esterification reaction Methods 0.000 abstract 3
- LPNBBFKOUUSUDB-UHFFFAOYSA-N p-toluic acid Chemical compound CC1=CC=C(C(O)=O)C=C1 LPNBBFKOUUSUDB-UHFFFAOYSA-N 0.000 abstract 3
- URLKBWYHVLBVBO-UHFFFAOYSA-N Para-Xylene Chemical group CC1=CC=C(C)C=C1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 abstract 2
- 230000006835 compression Effects 0.000 abstract 2
- 238000007906 compression Methods 0.000 abstract 2
- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 abstract 2
- REIDAMBAPLIATC-UHFFFAOYSA-M 4-methoxycarbonylbenzoate Chemical compound COC(=O)C1=CC=C(C([O-])=O)C=C1 REIDAMBAPLIATC-UHFFFAOYSA-M 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 230000005611 electricity Effects 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 230000008020 evaporation Effects 0.000 abstract 1
- 239000000706 filtrate Substances 0.000 abstract 1
- 229910001385 heavy metal Inorganic materials 0.000 abstract 1
- 238000009776 industrial production Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 150000002736 metal compounds Chemical class 0.000 abstract 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- 238000001953 recrystallisation Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/08—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/09—Preparation of carboxylic acids or their salts, halides or anhydrides from carboxylic acid esters or lactones
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/39—Preparation of carboxylic acid esters by oxidation of groups which are precursors for the acid moiety of the ester
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
С метода се понижават енергийните разходи при промишленото производство на диметилтерефталата. Той се състои в окисляване в течна среда с атмосферен кислород, в присъствие на съединения на тежки метали, на смес от р-ксилол (р-х) и фракция, съдържаща главно метил р-толуилат, при температура 140-170'с и налягане от 4 до 8 бара до получаване на оксидат, съдържащ р-толуилова киселина (р-те) и монометилтерефталат (ммт). Оксидатът се естерифицира с метанол при 220-280'с и налягане от 20 до 30 бара до р-те и суров дмт с последващо разделяне и пречистване. Естерификацията му се осъществява с нагнетена до 25-30 бара при компресионно отношение 1,25:1 до 15:1, за предпочитане 3:1 до 9:1, пара, съдържаща метанол, която се получава от филтрата при прекристализацията на суровата дмт фракция чрез изпаряване на метанола или ректификация на съдържаща метанол вторична пара или друг съдържащ метанол технологичен поток с налягане от 4 до 8 бара. Метанолсъдържаща пара се нагрява с топлината, отделена при компресията, до температурата на естерификацията. В даден случай отделената при естерификацията вторична пара се промива и разширява в турбина до налягане от 0,1 до 8 бара, а освободената енергия директно задвижва метанолния компресор или генератора за електроенергия. 5 претенции
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3407925A DE3407925C1 (de) | 1984-03-03 | 1984-03-03 | Verfahren zur Herstellung von Terephthalsaeuredimethylester aus p-Xylol und Methanol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BG45698A3 true BG45698A3 (bg) | 1989-07-14 |
Family
ID=6229536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BG069043A BG45698A3 (bg) | 1984-03-03 | 1985-02-28 | Метод за получаване на диметилтерефталат |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US4642369A (bg) |
| EP (1) | EP0156133B1 (bg) |
| JP (1) | JPS60204747A (bg) |
| AR (1) | AR245686A1 (bg) |
| BG (1) | BG45698A3 (bg) |
| BR (1) | BR8500934A (bg) |
| CS (1) | CS251094B2 (bg) |
| DE (2) | DE3407925C1 (bg) |
| IN (1) | IN163349B (bg) |
| MX (1) | MX161720A (bg) |
| PL (1) | PL145300B1 (bg) |
| RO (1) | RO91101B (bg) |
| SU (1) | SU1545938A3 (bg) |
| TR (1) | TR22471A (bg) |
| YU (1) | YU44491B (bg) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4026732A1 (de) * | 1990-08-24 | 1992-02-27 | Huels Chemische Werke Ag | Verfahren zur reinigung eines oxidationsabgases mit energierueckgewinnung |
| DE19618152C1 (de) * | 1996-05-07 | 1997-08-14 | Huels Chemische Werke Ag | Verfahren zur Trennung von Rohester im DMT-Prozeß |
| DE19750491A1 (de) * | 1997-11-14 | 1999-05-20 | Huels Chemische Werke Ag | Hochsiederkreislauf im DMT-Prozeß |
| US8193402B2 (en) * | 2007-12-03 | 2012-06-05 | Gevo, Inc. | Renewable compositions |
| JP2011505490A (ja) | 2007-12-03 | 2011-02-24 | ジーヴォ，インコーポレイテッド | 再生可能組成物 |
| WO2010099201A1 (en) * | 2009-02-24 | 2010-09-02 | Gevo, Inc. | Methods of preparing renewable butadiene and renewable isoprene |
| EP2485995A4 (en) * | 2009-10-06 | 2015-12-02 | Gevo Inc | INTEGRATED METHOD FOR SELECTIVELY CONVERTING ISOBUTANOL RENEWABLE IN P XYLENE |
| CN102770397A (zh) | 2010-01-08 | 2012-11-07 | 格沃股份有限公司 | 制备可再生的化学品的整合方法 |
| EP2529011A4 (en) * | 2010-01-29 | 2015-07-15 | Genomatica Inc | MICROORGANISMS AND METHODS FOR BIOSYNTHESIS OF P-TOLUATE AND TEREPHTHALATE |
| US8373012B2 (en) | 2010-05-07 | 2013-02-12 | Gevo, Inc. | Renewable jet fuel blendstock from isobutanol |
| WO2012145495A2 (en) | 2011-04-19 | 2012-10-26 | Gevo, Inc. | Variations on prins-like chemistry to produce 2,5-dimethylhexadiene from isobutanol |
| DE102012105876A1 (de) | 2012-07-02 | 2014-01-02 | Oxea Gmbh | Verfahren zur Herstellung von Terephthalsäure und ihren Derivaten |
| FI125589B2 (en) * | 2013-04-08 | 2022-03-31 | Stora Enso Oyj | Processes for deoxidation of bio-based materials and production of bio-based terephthalic acid and olefinic monomers |
| CN105985240A (zh) * | 2015-02-04 | 2016-10-05 | 华东理工大学 | 增塑剂生产酯化过程强化新工艺 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2894978A (en) * | 1956-07-02 | 1959-07-14 | Chemische Werke Witten Gmbh | Process of producing esters of phthalic acids by oxidation of xylene and toluic acid ester mixtures |
| DE1071688B (de) * | 1958-06-14 | 1959-12-24 | Basf Ag | Verfahren zur Verbesserung der Oxydationsgeschwindigkeit der bei Luftoxydation von xylol oder von gemischen aus xylol und p-toluylsaeuremethylestern anfallenden gemische |
| NL110864C (bg) * | 1958-11-07 | |||
| US3076019A (en) * | 1959-12-21 | 1963-01-29 | Standard Oil Co | Process for production of dimethyl terephthalate |
| DE2427875C3 (de) * | 1974-06-10 | 1980-03-20 | Dynamit Nobel Ag, 5210 Troisdorf | Verfahren zur Gewinnung von Dimethylterephthalat und von Zwischenprodukten der Dimethylterephthalat-Herstellung |
| US4096340A (en) * | 1975-06-03 | 1978-06-20 | Teijin Hercules Chemical Co., Ltd. | Process for the preparation of dimethyl terephthalate |
-
1984
- 1984-03-03 DE DE3407925A patent/DE3407925C1/de not_active Expired
- 1984-12-27 IN IN1038/MAS/84A patent/IN163349B/en unknown
-
1985
- 1985-02-07 EP EP85101275A patent/EP0156133B1/de not_active Expired
- 1985-02-07 DE DE8585101275T patent/DE3560052D1/de not_active Expired
- 1985-02-18 SU SU853856864A patent/SU1545938A3/ru active
- 1985-02-26 AR AR85299607A patent/AR245686A1/es active
- 1985-02-27 TR TR8623A patent/TR22471A/xx unknown
- 1985-02-27 RO RO117778A patent/RO91101B/ro unknown
- 1985-02-28 MX MX204464A patent/MX161720A/es unknown
- 1985-02-28 YU YU313/85A patent/YU44491B/xx unknown
- 1985-02-28 BG BG069043A patent/BG45698A3/bg unknown
- 1985-03-01 BR BR8500934A patent/BR8500934A/pt not_active IP Right Cessation
- 1985-03-01 PL PL1985252194A patent/PL145300B1/pl unknown
- 1985-03-04 US US06/707,696 patent/US4642369A/en not_active Expired - Lifetime
- 1985-03-04 JP JP60041378A patent/JPS60204747A/ja active Granted
- 1985-03-04 CS CS851507A patent/CS251094B2/cs unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE3407925C1 (de) | 1985-09-05 |
| MX161720A (es) | 1990-12-18 |
| US4642369A (en) | 1987-02-10 |
| BR8500934A (pt) | 1985-10-22 |
| AR245686A1 (es) | 1994-02-28 |
| YU31385A (en) | 1987-10-31 |
| EP0156133B1 (de) | 1987-01-14 |
| PL145300B1 (en) | 1988-08-31 |
| JPS60204747A (ja) | 1985-10-16 |
| EP0156133A1 (de) | 1985-10-02 |
| DE3560052D1 (en) | 1987-02-19 |
| YU44491B (en) | 1990-08-31 |
| RO91101A (ro) | 1987-03-30 |
| TR22471A (tr) | 1987-07-22 |
| CS251094B2 (en) | 1987-06-11 |
| IN163349B (bg) | 1988-09-10 |
| PL252194A1 (en) | 1985-09-24 |
| JPH0566378B2 (bg) | 1993-09-21 |
| SU1545938A3 (ru) | 1990-02-23 |
| RO91101B (ro) | 1987-04-01 |
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