GB1290981A - - Google Patents
Info
- Publication number
- GB1290981A GB1290981A GB286670A GB1290981DA GB1290981A GB 1290981 A GB1290981 A GB 1290981A GB 286670 A GB286670 A GB 286670A GB 1290981D A GB1290981D A GB 1290981DA GB 1290981 A GB1290981 A GB 1290981A
- Authority
- GB
- United Kingdom
- Prior art keywords
- slurry
- recrystallization
- acid
- stream
- repeatedly
- 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.)
- Expired
Links
- 239000002002 slurry Substances 0.000 abstract 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 abstract 3
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical class OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 abstract 3
- 238000000034 method Methods 0.000 abstract 3
- 238000001953 recrystallisation Methods 0.000 abstract 3
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 abstract 2
- 235000010233 benzoic acid Nutrition 0.000 abstract 2
- 238000001816 cooling Methods 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 239000002904 solvent Substances 0.000 abstract 2
- 239000002253 acid Substances 0.000 abstract 1
- 229960004365 benzoic acid Drugs 0.000 abstract 1
- 239000012047 saturated solution Substances 0.000 abstract 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/24—Stationary reactors without moving elements inside
- B01J19/2415—Tubular reactors
- B01J19/2435—Loop-type reactors
-
- 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
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00002—Chemical plants
- B01J2219/00004—Scale aspects
- B01J2219/00006—Large-scale industrial plants
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
- B01J2219/00094—Jackets
-
- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB286670 | 1970-01-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1290981A true GB1290981A (nl) | 1972-09-27 |
Family
ID=9747457
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB286670A Expired GB1290981A (nl) | 1970-01-21 | 1970-01-21 |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1290981A (nl) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2431479A1 (fr) * | 1978-07-21 | 1980-02-15 | Mitsubishi Gas Chemical Co | Procede pour la production d'acide terephtalique de haute purete |
WO1998024749A1 (en) * | 1996-12-06 | 1998-06-11 | Hfm International, Inc. | Method and apparatus for preparing purified terephthalic acid |
US5929274A (en) | 1995-06-07 | 1999-07-27 | Hfm International, Inc. | Method to reduce carboxybenzaldehyde isomers in terephthalic acid or isophthalic acid |
US5961935A (en) | 1995-06-07 | 1999-10-05 | Hfm International, Inc. | Method and apparatus for preparing purified terephthalic acid |
US6054610A (en) | 1995-06-07 | 2000-04-25 | Hfm International, Inc. | Method and apparatus for preparing purified terephthalic acid and isophthalic acid from mixed xylenes |
WO2006088470A2 (en) * | 2004-04-09 | 2006-08-24 | Gtc Technology Inc. | Purification of carboxylic acids by complexation with selective solvents |
-
1970
- 1970-01-21 GB GB286670A patent/GB1290981A/en not_active Expired
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2431479A1 (fr) * | 1978-07-21 | 1980-02-15 | Mitsubishi Gas Chemical Co | Procede pour la production d'acide terephtalique de haute purete |
US5929274A (en) | 1995-06-07 | 1999-07-27 | Hfm International, Inc. | Method to reduce carboxybenzaldehyde isomers in terephthalic acid or isophthalic acid |
US5961935A (en) | 1995-06-07 | 1999-10-05 | Hfm International, Inc. | Method and apparatus for preparing purified terephthalic acid |
US6013835A (en) | 1995-06-07 | 2000-01-11 | Hfm International, Inc. | Method and apparatus for preparing purified terephthalic acid |
US6054610A (en) | 1995-06-07 | 2000-04-25 | Hfm International, Inc. | Method and apparatus for preparing purified terephthalic acid and isophthalic acid from mixed xylenes |
US6113866A (en) | 1995-06-07 | 2000-09-05 | Hfm International, Inc. | Apparatus for preparing purified terephthalic acid |
WO1998024749A1 (en) * | 1996-12-06 | 1998-06-11 | Hfm International, Inc. | Method and apparatus for preparing purified terephthalic acid |
WO2006088470A2 (en) * | 2004-04-09 | 2006-08-24 | Gtc Technology Inc. | Purification of carboxylic acids by complexation with selective solvents |
WO2006088470A3 (en) * | 2004-04-09 | 2007-03-29 | Gtc Technology Inc | Purification of carboxylic acids by complexation with selective solvents |
US7307188B2 (en) | 2004-04-09 | 2007-12-11 | Gtc Technology, Inc. | Purification of carboxylic acids by complexation with selective solvents |
KR100947754B1 (ko) * | 2004-04-09 | 2010-03-18 | 지티씨 테크놀러지 인코포레이티드 | 선택적 용매를 사용하는 착화에 의한 카복실산의 정제 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |