BG45697A3 - Метод за получаване на терефталова киселина - Google Patents
Метод за получаване на терефталова киселинаInfo
- Publication number
- BG45697A3 BG45697A3 BG069044A BG6904485A BG45697A3 BG 45697 A3 BG45697 A3 BG 45697A3 BG 069044 A BG069044 A BG 069044A BG 6904485 A BG6904485 A BG 6904485A BG 45697 A3 BG45697 A3 BG 45697A3
- Authority
- BG
- Bulgaria
- Prior art keywords
- methanol
- bar
- fraction
- pressure
- temperature
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 4
- 239000002253 acid Substances 0.000 title 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract 18
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 abstract 4
- 230000032050 esterification Effects 0.000 abstract 3
- 238000005886 esterification reaction Methods 0.000 abstract 3
- 239000000203 mixture Substances 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
- GBMDVOWEEQVZKZ-UHFFFAOYSA-N methanol;hydrate Chemical compound O.OC GBMDVOWEEQVZKZ-UHFFFAOYSA-N 0.000 abstract 2
- 238000000926 separation method Methods 0.000 abstract 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 230000005611 electricity Effects 0.000 abstract 1
- 238000005265 energy consumption Methods 0.000 abstract 1
- 229910001385 heavy metal Inorganic materials 0.000 abstract 1
- 238000009776 industrial production Methods 0.000 abstract 1
- 239000007791 liquid phase Substances 0.000 abstract 1
- 150000002736 metal compounds Chemical class 0.000 abstract 1
- 150000004702 methyl esters Chemical class 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C63/00—Compounds having carboxyl groups bound to a carbon atoms of six-membered aromatic rings
- C07C63/14—Monocyclic dicarboxylic acids
- C07C63/15—Monocyclic dicarboxylic acids all carboxyl groups bound to carbon atoms of the six-membered aromatic ring
- C07C63/26—1,4 - Benzenedicarboxylic acid
-
- 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
Методът намира приложение за промишлено производство на терефталовата киселина при намален разход на енергия. По метода в течна фаза с атмосферен кислород в присъствие на съединения на тежки метали се окислява смес от р-ксилол (р-х), съдържаща главно метилов естер на р-толуиловата киселина (р-те)фракция, до получаване на оксидат, състоящ се главно от р-те и ммт при температура от 140 до 170'с и налягане 4-8 бара, който се естерифицира с нагнетена до 25-30 бара пара, съдържаща метанол, при 220-280'с. След разделяне на получената фракция суровата дмт(диметилтерефталат) фракция се хидролизира до получаване на терефталова киселина (тк ) и водно-метанолна смес. Естерификацията се осъществява с фракция от вторична пара, съдържаща метанол, водно-метанолна смес и др. Технологични потоци, съдържащи метанол, след разделянето им при налягане 2-10 бара и температура от 80 до 180'с до получаване на богата на метанол фракция във вид на пари с налягане 2-10 бара, по-точно 4-8 бара, която се компримира при компресионно съотношение от 2,5:1 до 15:1, поточно от 3:1 до 9:1, до налягане 25-30 бара и температура 220-280'с. Отделената при компресията топлина прегрява съдържащата метанол пара до необходимата за естерификацията температура. В даден случай отделените при естерификацията вторични пари след промиване се подаватв турбина,а отделена при разширяването им енергия директно задвижваметанолния компресор или генератора за електроенергия. 5 претенции, 9 фигури
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3407912A DE3407912C1 (de) | 1984-03-03 | 1984-03-03 | Verfahren zur Herstellung von Terephthalsaeure ueber Terephthalsaeuredimethylester aus p-Xylol und Methanol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BG45697A3 true BG45697A3 (bg) | 1989-07-14 |
Family
ID=6229529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BG069044A BG45697A3 (bg) | 1984-03-03 | 1985-02-28 | Метод за получаване на терефталова киселина |
Country Status (20)
| Country | Link |
|---|---|
| US (1) | US4642377A (bg) |
| EP (1) | EP0157122B1 (bg) |
| JP (1) | JPH0688937B2 (bg) |
| KR (1) | KR920003120B1 (bg) |
| BG (1) | BG45697A3 (bg) |
| BR (1) | BR8500935A (bg) |
| CS (1) | CS251095B2 (bg) |
| DD (1) | DD232912A5 (bg) |
| DE (2) | DE3407912C1 (bg) |
| EG (1) | EG17052A (bg) |
| ES (1) | ES8602590A1 (bg) |
| IN (1) | IN163350B (bg) |
| MX (1) | MX162239A (bg) |
| PL (1) | PL144915B1 (bg) |
| PT (1) | PT80041B (bg) |
| RO (1) | RO91879B (bg) |
| SU (1) | SU1581218A3 (bg) |
| TR (1) | TR22497A (bg) |
| YU (1) | YU44722B (bg) |
| ZA (1) | ZA851579B (bg) |
Families Citing this family (3)
| 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 |
| US6472557B1 (en) | 1999-02-10 | 2002-10-29 | Eastman Chemical Company | Process for recycling polyesters |
| CN110078284B (zh) * | 2019-04-25 | 2021-08-24 | 杭州多向流化学科技有限公司 | 用于制备对苯二甲酸的富水溶剂分级利用减排系统 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2653165A (en) * | 1950-09-27 | 1953-09-22 | California Research Corp | Oxidation process |
| 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 |
| DE2916197C2 (de) * | 1979-04-21 | 1982-01-28 | Dynamit Nobel Ag, 5210 Troisdorf | Verfahren zur Herstellung von Terephthalsäure aus Dimethyltherephthalat als Zwischenprodukt |
-
1984
- 1984-03-03 DE DE3407912A patent/DE3407912C1/de not_active Expired
- 1984-12-27 IN IN1039/MAS/84A patent/IN163350B/en unknown
-
1985
- 1985-02-07 EP EP85101271A patent/EP0157122B1/de not_active Expired
- 1985-02-07 DE DE8585101271T patent/DE3560053D1/de not_active Expired
- 1985-02-25 SU SU853857493A patent/SU1581218A3/ru active
- 1985-02-25 DD DD85273522A patent/DD232912A5/de unknown
- 1985-02-27 RO RO117779A patent/RO91879B/ro unknown
- 1985-02-27 TR TR8624A patent/TR22497A/xx unknown
- 1985-02-28 BG BG069044A patent/BG45697A3/bg unknown
- 1985-02-28 KR KR1019850001275A patent/KR920003120B1/ko not_active Expired
- 1985-02-28 YU YU314/85A patent/YU44722B/xx unknown
- 1985-02-28 MX MX204465A patent/MX162239A/es unknown
- 1985-03-01 PL PL1985252195A patent/PL144915B1/pl unknown
- 1985-03-01 PT PT80041A patent/PT80041B/pt not_active IP Right Cessation
- 1985-03-01 BR BR8500935A patent/BR8500935A/pt not_active IP Right Cessation
- 1985-03-01 ES ES540832A patent/ES8602590A1/es not_active Expired
- 1985-03-01 ZA ZA851579A patent/ZA851579B/xx unknown
- 1985-03-02 EG EG12585A patent/EG17052A/xx active
- 1985-03-04 JP JP60041377A patent/JPH0688937B2/ja not_active Expired - Fee Related
- 1985-03-04 US US06/707,579 patent/US4642377A/en not_active Expired - Lifetime
- 1985-03-04 CS CS851508A patent/CS251095B2/cs unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ES540832A0 (es) | 1985-12-01 |
| TR22497A (tr) | 1987-09-11 |
| BR8500935A (pt) | 1985-10-22 |
| KR850007056A (ko) | 1985-10-30 |
| DD232912A5 (de) | 1986-02-12 |
| RO91879B (ro) | 1987-07-03 |
| DE3560053D1 (en) | 1987-02-19 |
| PT80041B (pt) | 1987-06-17 |
| US4642377A (en) | 1987-02-10 |
| SU1581218A3 (ru) | 1990-07-23 |
| YU44722B (en) | 1990-12-31 |
| JPS60202842A (ja) | 1985-10-14 |
| EG17052A (en) | 1994-07-30 |
| PL252195A1 (en) | 1985-09-24 |
| RO91879A (ro) | 1987-06-30 |
| KR920003120B1 (ko) | 1992-04-20 |
| ZA851579B (en) | 1985-10-30 |
| DE3407912C1 (de) | 1985-05-09 |
| ES8602590A1 (es) | 1985-12-01 |
| EP0157122B1 (de) | 1987-01-14 |
| MX162239A (es) | 1991-04-12 |
| EP0157122A1 (de) | 1985-10-09 |
| IN163350B (bg) | 1988-09-10 |
| JPH0688937B2 (ja) | 1994-11-09 |
| PL144915B1 (en) | 1988-07-30 |
| YU31485A (en) | 1987-10-31 |
| CS251095B2 (en) | 1987-06-11 |
| PT80041A (de) | 1985-04-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| BG45698A3 (bg) | Метод за получаване на диметилтерефталат | |
| BG94933A (bg) | Метод за получаване на диметилтерефталатен междинен продукт с определена чистота и неговото преработване до свръхчист диметилтерефталат и/или до чиста или свръхчиста терефталова киселина | |
| ES482621A1 (es) | Procedimiento mejorado para la preparacion de acido terefta-lico. | |
| RU96116682A (ru) | Способ выработки электроэнергии в цикле, содержащем газовую турбину | |
| TR200001718T2 (tr) | Aromatik karboksilik asitler üretme yöntemi. | |
| MY127875A (en) | Process for preparing gamma-butyrolactone, butane-1, 4-diol and tetrahydrofuran | |
| BR9909312A (pt) | Processos para separar ácido acrìlico, e para preparar um acrilato, ou uma mistura de dois ou mais do mesmo | |
| WO1993009111A3 (en) | Novel methods for the preparation of glycerol carbonate esters | |
| BR9814141A (pt) | Processo para a preparação de butano-1,4-diol, gama-butiro-lactona e tetraidrofurano | |
| BG38786A3 (bg) | Метод за получаване на метилови естери | |
| KR970074745A (ko) | Dmt 공정에서의 조 에스테르의 분리 방법 | |
| ATE123015T1 (de) | Verfahren zur herstellung von fettsäurealkylestern. | |
| IE810308L (en) | Combined production of electrical energy and fuel from peat. | |
| JPS555938A (en) | Water-soluble polyester adhesive | |
| SU1581218A3 (ru) | Способ получени терефталевой кислоты | |
| ES2028224T3 (es) | Procedimiento continuo para la produccion de acido isobutirico. | |
| JPS54157536A (en) | Esterification process | |
| SE7704274L (sv) | Forfarande for limning av textilfibrer | |
| JPS54132502A (en) | Preparation of esters | |
| FR2300063A1 (fr) | Procede de production de l'ether 3-hydroxymethyldiphenylique | |
| JPS5371035A (en) | Recovery and purification of terephthalic acid dimethylester | |
| ES476886A1 (es) | Procedimiento de preparacion de esteres etilicos o isopropi-licos de acidos carboxilicos. | |
| JPS5559122A (en) | Preparation of diol | |
| ES2156628T3 (es) | Procedimiento para la preparacion de halogenodifluor-acetatos de alquilo. | |
| KR880014005A (ko) | 폴리에스테르 공중합체의 제조방법 |