NL8100192A - Werkwijze voor het terugwinnen van een katalysator voor de bereiding van tereftaalzuur. - Google Patents

Werkwijze voor het terugwinnen van een katalysator voor de bereiding van tereftaalzuur. Download PDF

Info

Publication number: NL8100192A
Authority: NL; Netherlands
Prior art keywords: mother liquor; xylene; process according; extraction; acetic acid
Prior art date: 1980-01-23

Application number

NL8100192A

Other languages

English (en)

Dutch (nl)

Original Assignee

Montedison Spa

Priority date (The priority date 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 date listed.)

1980-01-23

Filing date

1981-01-16

Publication date

1981-08-17

1981-01-16 Application filed by Montedison Spa filed Critical Montedison Spa

1981-08-17 Publication of NL8100192A publication Critical patent/NL8100192A/nl

Links

239000003054 catalyst Substances 0.000 title claims description 38
238000000034 method Methods 0.000 title claims description 25
239000002253 acid Substances 0.000 title description 3
QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 114
KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 80
URLKBWYHVLBVBO-UHFFFAOYSA-N Para-Xylene Chemical group CC1=CC=C(C)C=C1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 claims description 53
239000012071 phase Substances 0.000 claims description 44
230000003647 oxidation Effects 0.000 claims description 43
238000007254 oxidation reaction Methods 0.000 claims description 43
239000012452 mother liquor Substances 0.000 claims description 35
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
GJRQTCIYDGXPES-UHFFFAOYSA-N iso-butyl acetate Natural products CC(C)COC(C)=O GJRQTCIYDGXPES-UHFFFAOYSA-N 0.000 claims description 22
FGKJLKRYENPLQH-UHFFFAOYSA-M isocaproate Chemical compound CC(C)CCC([O-])=O FGKJLKRYENPLQH-UHFFFAOYSA-M 0.000 claims description 22
OQAGVSWESNCJJT-UHFFFAOYSA-N isovaleric acid methyl ester Natural products COC(=O)CC(C)C OQAGVSWESNCJJT-UHFFFAOYSA-N 0.000 claims description 22
239000000203 mixture Substances 0.000 claims description 18
238000000605 extraction Methods 0.000 claims description 17
239000000047 product Substances 0.000 claims description 17
239000000725 suspension Substances 0.000 claims description 13
239000002244 precipitate Substances 0.000 claims description 12
239000012535 impurity Substances 0.000 claims description 8
238000002360 preparation method Methods 0.000 claims description 8
DCKVNWZUADLDEH-UHFFFAOYSA-N sec-butyl acetate Chemical compound CCC(C)OC(C)=O DCKVNWZUADLDEH-UHFFFAOYSA-N 0.000 claims description 7
238000001816 cooling Methods 0.000 claims description 5
239000007791 liquid phase Substances 0.000 claims description 5
238000001704 evaporation Methods 0.000 claims description 4
239000007787 solid Substances 0.000 claims description 4
230000008020 evaporation Effects 0.000 claims description 3
238000011084 recovery Methods 0.000 claims description 3
238000000926 separation method Methods 0.000 claims description 3
239000007790 solid phase Substances 0.000 claims 3
239000000243 solution Substances 0.000 description 21
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 19
230000005540 biological transmission Effects 0.000 description 12
229910017052 cobalt Inorganic materials 0.000 description 12
239000010941 cobalt Substances 0.000 description 12
GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 12
WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 11
GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 11
229910052794 bromium Inorganic materials 0.000 description 11
239000011572 manganese Substances 0.000 description 11
CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical compound Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 description 10
239000006227 byproduct Substances 0.000 description 10
QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 10
YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
239000007788 liquid Substances 0.000 description 9
PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 8
WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 8
229910052748 manganese Inorganic materials 0.000 description 8
LPNBBFKOUUSUDB-UHFFFAOYSA-N p-toluic acid Chemical compound CC1=CC=C(C(O)=O)C=C1 LPNBBFKOUUSUDB-UHFFFAOYSA-N 0.000 description 8
CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical group CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 7
238000004821 distillation Methods 0.000 description 6
238000001914 filtration Methods 0.000 description 6
XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 6
239000007864 aqueous solution Substances 0.000 description 5
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
ZBYYWKJVSFHYJL-UHFFFAOYSA-L cobalt(2+);diacetate;tetrahydrate Chemical compound O.O.O.O.[Co+2].CC([O-])=O.CC([O-])=O ZBYYWKJVSFHYJL-UHFFFAOYSA-L 0.000 description 5
239000000356 contaminant Substances 0.000 description 5
238000009826 distribution Methods 0.000 description 5
229910000042 hydrogen bromide Inorganic materials 0.000 description 5
229940082328 manganese acetate tetrahydrate Drugs 0.000 description 5
CESXSDZNZGSWSP-UHFFFAOYSA-L manganese(2+);diacetate;tetrahydrate Chemical compound O.O.O.O.[Mn+2].CC([O-])=O.CC([O-])=O CESXSDZNZGSWSP-UHFFFAOYSA-L 0.000 description 5
239000001301 oxygen Substances 0.000 description 5
229910052760 oxygen Inorganic materials 0.000 description 5
239000005711 Benzoic acid Substances 0.000 description 4
RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
235000010233 benzoic acid Nutrition 0.000 description 4
239000000706 filtrate Substances 0.000 description 4
IVSZLXZYQVIEFR-UHFFFAOYSA-N m-xylene Chemical group CC1=CC=CC(C)=C1 IVSZLXZYQVIEFR-UHFFFAOYSA-N 0.000 description 4
238000010992 reflux Methods 0.000 description 4
239000010936 titanium Substances 0.000 description 4
229910052719 titanium Inorganic materials 0.000 description 4
IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
238000006243 chemical reaction Methods 0.000 description 3
239000012141 concentrate Substances 0.000 description 3
230000000694 effects Effects 0.000 description 3
-1 for example Chemical compound 0.000 description 3
239000007789 gas Substances 0.000 description 3
239000000543 intermediate Substances 0.000 description 3
WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 3
229940078552 o-xylene Drugs 0.000 description 3
239000012265 solid product Substances 0.000 description 3
GOUHYARYYWKXHS-UHFFFAOYSA-N 4-formylbenzoic acid Chemical compound OC(=O)C1=CC=C(C=O)C=C1 GOUHYARYYWKXHS-UHFFFAOYSA-N 0.000 description 2
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 2
150000007513 acids Chemical class 0.000 description 2
GZUXJHMPEANEGY-UHFFFAOYSA-N bromomethane Chemical compound BrC GZUXJHMPEANEGY-UHFFFAOYSA-N 0.000 description 2
JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 2
238000005119 centrifugation Methods 0.000 description 2
238000002485 combustion reaction Methods 0.000 description 2
230000000052 comparative effect Effects 0.000 description 2
150000002148 esters Chemical class 0.000 description 2
XEKOWRVHYACXOJ-UHFFFAOYSA-N ethyl acetate Substances CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 2
229910052757 nitrogen Inorganic materials 0.000 description 2
239000008096 xylene Substances 0.000 description 2
UOWPCCFUAUVJKX-UHFFFAOYSA-N 1-formylcyclohexa-2,4-diene-1-carboxylic acid Chemical compound C(=O)(O)C1(C=O)CC=CC=C1 UOWPCCFUAUVJKX-UHFFFAOYSA-N 0.000 description 1
DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
229910052684 Cerium Inorganic materials 0.000 description 1
VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
241000282326 Felis catus Species 0.000 description 1
238000009825 accumulation Methods 0.000 description 1
239000000654 additive Substances 0.000 description 1
230000000996 additive effect Effects 0.000 description 1
230000002411 adverse Effects 0.000 description 1
125000001931 aliphatic group Chemical group 0.000 description 1
150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
239000008346 aqueous phase Substances 0.000 description 1
159000000032 aromatic acids Chemical class 0.000 description 1
150000001491 aromatic compounds Chemical class 0.000 description 1
125000003118 aryl group Chemical group 0.000 description 1
229910052788 barium Inorganic materials 0.000 description 1
DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
239000002585 base Substances 0.000 description 1
238000006065 biodegradation reaction Methods 0.000 description 1
238000009835 boiling Methods 0.000 description 1
125000004432 carbon atom Chemical group C* 0.000 description 1
230000003197 catalytic effect Effects 0.000 description 1
239000003518 caustics Substances 0.000 description 1
GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
239000007806 chemical reaction intermediate Substances 0.000 description 1
239000007810 chemical reaction solvent Substances 0.000 description 1
239000003795 chemical substances by application Substances 0.000 description 1
229910052804 chromium Inorganic materials 0.000 description 1
239000011651 chromium Substances 0.000 description 1
230000007423 decrease Effects 0.000 description 1
238000001035 drying Methods 0.000 description 1
235000019439 ethyl acetate Nutrition 0.000 description 1
230000002349 favourable effect Effects 0.000 description 1
238000010438 heat treatment Methods 0.000 description 1
FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
229930195733 hydrocarbon Natural products 0.000 description 1
150000002430 hydrocarbons Chemical class 0.000 description 1
229910052739 hydrogen Inorganic materials 0.000 description 1
239000004615 ingredient Substances 0.000 description 1
239000003456 ion exchange resin Substances 0.000 description 1
229920003303 ion-exchange polymer Polymers 0.000 description 1
229910052742 iron Inorganic materials 0.000 description 1
238000000622 liquid--liquid extraction Methods 0.000 description 1
ZDGGJQMSELMHLK-UHFFFAOYSA-N m-Trifluoromethylhippuric acid Chemical compound OC(=O)CNC(=O)C1=CC=CC(C(F)(F)F)=C1 ZDGGJQMSELMHLK-UHFFFAOYSA-N 0.000 description 1
150000002697 manganese compounds Chemical class 0.000 description 1
238000004519 manufacturing process Methods 0.000 description 1
229940102396 methyl bromide Drugs 0.000 description 1
QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
238000005191 phase separation Methods 0.000 description 1
231100000572 poisoning Toxicity 0.000 description 1
230000000607 poisoning effect Effects 0.000 description 1
229910052700 potassium Inorganic materials 0.000 description 1
238000010926 purge Methods 0.000 description 1
239000011541 reaction mixture Substances 0.000 description 1
238000004064 recycling Methods 0.000 description 1
WWYDYZMNFQIYPT-UHFFFAOYSA-N ru78191 Chemical class OC(=O)C(C(O)=O)C1=CC=CC=C1 WWYDYZMNFQIYPT-UHFFFAOYSA-N 0.000 description 1
238000005204 segregation Methods 0.000 description 1
239000002002 slurry Substances 0.000 description 1
239000002904 solvent Substances 0.000 description 1
238000000638 solvent extraction Methods 0.000 description 1
238000003756 stirring Methods 0.000 description 1

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/04—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing carboxylic acids or their salts
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/40—Regeneration or reactivation
- B01J31/4015—Regeneration or reactivation of catalysts containing metals
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/40—Regeneration or reactivation
- B01J31/4015—Regeneration or reactivation of catalysts containing metals
- B01J31/4023—Regeneration or reactivation of catalysts containing metals containing iron group metals, noble metals or copper
- B01J31/403—Regeneration or reactivation of catalysts containing metals containing iron group metals, noble metals or copper containing iron group metals or copper
- 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
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2231/00—Catalytic reactions performed with catalysts classified in B01J31/00
- B01J2231/70—Oxidation reactions, e.g. epoxidation, (di)hydroxylation, dehydrogenation and analogues
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/70—Complexes comprising metals of Group VII (VIIB) as the central metal
- B01J2531/72—Manganese
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/80—Complexes comprising metals of Group VIII as the central metal
- B01J2531/84—Metals of the iron group
- B01J2531/845—Cobalt
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Chemical Kinetics & Catalysis (AREA)
Oil, Petroleum & Natural Gas (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

NL8100192A 1980-01-23 1981-01-16 Werkwijze voor het terugwinnen van een katalysator voor de bereiding van tereftaalzuur. NL8100192A (nl)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
IT19393/80A IT1129759B (it)	1980-01-23	1980-01-23	Metodo per ricuperare in forma attiva i componenti del sistema catalitico della sintesi dell'acido tereftalico
IT1939380		1980-01-23

Publications (1)

Publication Number	Publication Date
NL8100192A true NL8100192A (nl)	1981-08-17

Family

ID=11157312

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL8100192A NL8100192A (nl)	1980-01-23	1981-01-16	Werkwijze voor het terugwinnen van een katalysator voor de bereiding van tereftaalzuur.

Country Status (12)

Country	Link
US (1)	US4356319A (fr)
JP (1)	JPS56113346A (fr)
BE (1)	BE887212A (fr)
BR (1)	BR8100324A (fr)
CA (1)	CA1152481A (fr)
DE (1)	DE3101672A1 (fr)
ES (1)	ES498729A0 (fr)
FR (1)	FR2473903B1 (fr)
GB (1)	GB2067563B (fr)
IT (1)	IT1129759B (fr)
NL (1)	NL8100192A (fr)
SU (1)	SU1194260A3 (fr)

Families Citing this family (102)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB8428028D0 (en) *	1984-11-06	1984-12-12	Ici Plc	Recovery of metal catalyst residues
US4939297A (en) *	1989-06-05	1990-07-03	Eastman Kodak Company	Extraction process for removal of impurities from terephthalic acid filtrate
TW299318B (fr) *	1994-11-15	1997-03-01	Mitsubishi Chem Corp
JP3729284B2 (ja) *	1995-09-22	2005-12-21	三菱瓦斯化学株式会社	高純度テレフタル酸の製造方法
KR19990025109A (ko) *	1997-09-10	1999-04-06	조민호	테레프탈산 폐기슬러지로부터 코발트 촉매를 회수하는 방법
KR100496042B1 (ko) *	1998-11-06	2005-09-26	에스케이케미칼주식회사	테레프탈산 제조 공정에서 산화 촉매 물질의 회수방법
US7485747B2 (en) *	2001-06-04	2009-02-03	Eastman Chemical Company	Two stage oxidation process for the production of aromatic dicarboxylic acids
US7196215B2 (en) *	2001-06-04	2007-03-27	Eastman Chemical Company	Process for the production of purified terephthalic acid
US7132566B2 (en) *	2003-09-22	2006-11-07	Eastman Chemical Company	Process for the purification of a crude carboxylic acid slurry
BR0316462A (pt) *	2002-12-09	2005-10-11	Eastman Chem Co	Processos para reduzir uma suspensão de ácido carboxìlico purificado, para purificar um produto de oxidação em estágios, para produzir um produto de ácido carboxìlico purificado, e, suspensão de ácido carboxìlico purificado
US20040215036A1 (en) *	2003-04-25	2004-10-28	Robert Lin	Method for heating a crude carboxylic acid slurry in a post oxidation zone by the addition of steam
US7494641B2 (en) *	2003-06-05	2009-02-24	Eastman Chemical Company	Extraction process for removal of impurities from an oxidizer purge stream in the synthesis of carboxylic acid
US7410632B2 (en) *	2003-06-05	2008-08-12	Eastman Chemical Company	Extraction process for removal of impurities from mother liquor in the synthesis of carboxylic acid
US7452522B2 (en) *	2003-06-05	2008-11-18	Eastman Chemical Company	Extraction process for removal of impurities from an oxidizer purge stream in the synthesis of carboxylic acid
US7381386B2 (en) *	2003-06-05	2008-06-03	Eastman Chemical Company	Extraction process for removal of impurities from mother liquor in the synthesis of carboxylic acid
US7351396B2 (en) *	2003-06-05	2008-04-01	Eastman Chemical Company	Extraction process for removal of impurities from an aqueous mixture
US7282151B2 (en) *	2003-06-05	2007-10-16	Eastman Chemical Company	Process for removal of impurities from mother liquor in the synthesis of carboxylic acid using pressure filtration
US7049465B2 (en) *	2003-07-10	2006-05-23	Eastman Chemical Company	Process for energy recovery in processes for the preparation of aromatic carboxylic acids
US7546747B2 (en)	2004-01-15	2009-06-16	Eastman Chemical Company	Process for production of a dried carboxylic acid cake suitable for use in polyester production
US7213540B2 (en) *	2004-02-05	2007-05-08	Eastman Chemical Company	Steam recompression in carboxylic acid processes
US20070238899A9 (en) *	2004-09-02	2007-10-11	Robert Lin	Optimized production of aromatic dicarboxylic acids
BRPI0514773A (pt) *	2004-09-02	2008-06-24	Eastman Chem Co	processo para oxidação em fase lìquida, e, reator de coluna de bolhas
US7572932B2 (en)	2004-09-02	2009-08-11	Eastman Chemical Company	Optimized liquid-phase oxidation
US7741515B2 (en)	2004-09-02	2010-06-22	Eastman Chemical Company	Optimized liquid-phase oxidation
US7390921B2 (en)	2004-09-02	2008-06-24	Eastman Chemical Company	Optimized liquid-phase oxidation
US7683210B2 (en)	2004-09-02	2010-03-23	Eastman Chemical Company	Optimized liquid-phase oxidation
US7371894B2 (en)	2004-09-02	2008-05-13	Eastman Chemical Company	Optimized liquid-phase oxidation
US7897810B2 (en)	2004-09-02	2011-03-01	Eastman Chemical Company	Optimized production of aromatic dicarboxylic acids
US7381836B2 (en)	2004-09-02	2008-06-03	Eastman Chemical Company	Optimized liquid-phase oxidation
US7495125B2 (en) *	2004-09-02	2009-02-24	Eastman Chemical Company	Optimized liquid-phase oxidation
US7568361B2 (en)	2004-09-02	2009-08-04	Eastman Chemical Company	Optimized liquid-phase oxidation
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1980
- 1980-01-23 IT IT19393/80A patent/IT1129759B/it active
1981
- 1981-01-16 NL NL8100192A patent/NL8100192A/nl not_active Application Discontinuation
- 1981-01-19 FR FR8100877A patent/FR2473903B1/fr not_active Expired
- 1981-01-19 US US06/226,382 patent/US4356319A/en not_active Expired - Fee Related
- 1981-01-20 GB GB8101641A patent/GB2067563B/en not_active Expired
- 1981-01-20 DE DE19813101672 patent/DE3101672A1/de not_active Withdrawn
- 1981-01-21 BR BR8100324A patent/BR8100324A/pt unknown
- 1981-01-22 JP JP728981A patent/JPS56113346A/ja active Pending
- 1981-01-22 ES ES498729A patent/ES498729A0/es active Granted
- 1981-01-22 CA CA000369113A patent/CA1152481A/fr not_active Expired
- 1981-01-22 SU SU813263198A patent/SU1194260A3/ru active
- 1981-01-23 BE BE0/203582A patent/BE887212A/fr not_active IP Right Cessation

Also Published As

Publication number	Publication date
IT1129759B (it)	1986-06-11
BR8100324A (pt)	1981-08-11
ES8203323A1 (es)	1982-04-01
CA1152481A (fr)	1983-08-23
BE887212A (fr)	1981-07-23
ES498729A0 (es)	1982-04-01
JPS56113346A (en)	1981-09-07
IT8019393A0 (it)	1980-01-23
FR2473903A1 (fr)	1981-07-24
DE3101672A1 (de)	1981-11-26
FR2473903B1 (fr)	1986-11-28
SU1194260A3 (ru)	1985-11-23
US4356319A (en)	1982-10-26
GB2067563B (en)	1984-03-21
GB2067563A (en)	1981-07-30

Legal Events

Date	Code	Title
1985-01-01	A85	Still pending on 85-01-01
1985-06-03	BA	A request for search or an international-type search has been filed
1985-06-03	BB	A search report has been drawn up
1985-10-01	BC	A request for examination has been filed
1988-09-01	BV	The patent application has lapsed

Publication	Publication Date	Title
NL8100192A (nl)	1981-08-17	Werkwijze voor het terugwinnen van een katalysator voor de bereiding van tereftaalzuur.
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EP2450342B1 (fr)	2017-05-03	Procédé pour la fabrication d'un gâteau d'acide carboxylique séché approprié pour une utilisation dans la production de polyester
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JPH11171826A (ja)	1999-06-29	芳香族カルボン酸の製造方法
KR830001623B1 (ko)	1983-08-19	테레프탈릭산 합성에 있어서 활성상태로 촉매를 회수하는 방법
JPH11246476A (ja)	1999-09-14	芳香族カルボン酸の製造方法
HK1167642B (en)	2018-03-16	Process for production of a dried carboxylic acid cake suitable for use in polyester production