GB994769A - Purification of terephthalic acid - Google Patents
Purification of terephthalic acidInfo
- Publication number
- GB994769A GB994769A GB12641/64A GB1264164A GB994769A GB 994769 A GB994769 A GB 994769A GB 12641/64 A GB12641/64 A GB 12641/64A GB 1264164 A GB1264164 A GB 1264164A GB 994769 A GB994769 A GB 994769A
- Authority
- GB
- United Kingdom
- Prior art keywords
- terephthalic acid
- impure
- aqueous solution
- catalyst
- hydrogenation
- 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
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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/42—Platinum
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/44—Palladium
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/74—Iron group metals
- B01J23/75—Cobalt
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/74—Iron group metals
- B01J23/755—Nickel
-
- 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
- C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification
-
- 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
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/18—Carbon
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Artificial Filaments (AREA)
Abstract
Fibre-grade terephthalic acid is produced from an impure terephthalic acid containing 4-carboxy-benzaldehyde by catalytically hydrogenating said impure terephthalic acid in an aqueous solution at elevated temperature and pressure for a time sufficient to effect substantial reduction of said 4-carboxy-benzaldehyde, and recovering a terephthalic acid of fibre-grade quality. The hydrogenation may be effected within the range of 200 DEG to 400 DEG C. for 0.005 to 10 hours, particularly with a Group VIII metal catalyst, several catalysts being specified. The hydrogenation may be carried out as a batch process under static conditions, as in a sealed autocalve, or by bubbling hydrogen into the aqueous solution, or the aqueous solution of impure terephthalic acid may be percolated through a bed of hydrogenation catalyst while maintaining either a static hydrogen atmosphere or a flow concurrent or counter-current of hydrogen through the catalyst chamber. The product is obtained by cooling the aqueous solution and separating terephthalic acid crystals. The impure terephthalic acid may be made by liquid phase air oxidation of p-xylene, using a heavy metal and bromine as catalyst as in Specification 807,901, or using heavy metal catalysts promoted with acetaldehyde or methyl ethyl ketone, or the impure acid from the nitric acid oxidation of p-xylene, or from the isomerization of dipotassium phthalate or the disproportionation of potassium-benzoate may be similarly treated if carboxybenzaldehyde or reducible impurities are present.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US26918163A | 1963-03-29 | 1963-03-29 | |
US35150664A | 1964-03-12 | 1964-03-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB994769A true GB994769A (en) | 1965-06-10 |
Family
ID=26953548
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB12641/64A Expired GB994769A (en) | 1963-03-29 | 1964-03-25 | Purification of terephthalic acid |
Country Status (11)
Country | Link |
---|---|
JP (1) | JPS4116860B1 (en) |
AT (1) | AT250335B (en) |
BE (1) | BE645853A (en) |
CH (1) | CH417564A (en) |
DE (1) | DE1299628B (en) |
DK (1) | DK128489B (en) |
ES (1) | ES298097A1 (en) |
FR (1) | FR1433325A (en) |
GB (1) | GB994769A (en) |
NL (1) | NL139017B (en) |
SE (1) | SE309413B (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3522298A (en) * | 1966-03-30 | 1970-07-28 | Mobil Oil Corp | Terephthalic acid purification process |
US3546285A (en) * | 1967-06-20 | 1970-12-08 | Celanese Corp | Process of purifying aromatic dicarboxylic acids |
JPS4939749B1 (en) * | 1966-09-01 | 1974-10-28 | ||
EP1091922A1 (en) * | 1998-06-30 | 2001-04-18 | Eastman Chemical Company | Method of purifying aromatic dicarboxylic acids |
WO2002060851A1 (en) * | 2001-01-31 | 2002-08-08 | Basf Aktiengesellschaft | Method for cleaning crude terephthalic acid and catalysts suitable for the same and containing carbon fibres |
WO2004035515A1 (en) * | 2002-10-15 | 2004-04-29 | Eastman Chemical Company | Process for production of a carboxylic acid/diol mixture suitable for use in polyester production |
US6753290B1 (en) | 1999-07-29 | 2004-06-22 | Institut Kataliza Imeni G.K. Boreskova Sibirskogo Otdelenia Rossiiskoi Akademii Nauk | Catalytic composition, method for manufacturing thereof and method for the purification of terephthalic acid |
US7193109B2 (en) | 2003-03-06 | 2007-03-20 | Eastman Chemical Company | Process for production of a carboxylic acid/diol mixture suitable for use in polyester production |
US7214760B2 (en) | 2004-01-15 | 2007-05-08 | Eastman Chemical Company | Process for production of a carboxylic acid/diol mixture suitable for use in polyester production |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL6606580A (en) * | 1965-05-17 | 1966-11-18 | ||
JPS5517309A (en) * | 1978-07-21 | 1980-02-06 | Mitsubishi Gas Chem Co Inc | Preparation of high purity terephthalic acid |
JP2931048B2 (en) * | 1990-07-04 | 1999-08-09 | 三井化学株式会社 | Method for producing high-purity terephthalic acid |
US20100048943A1 (en) | 2006-12-20 | 2010-02-25 | Mitsubishi Gas Chemical Company Inc. | Process for production of isophthalic acid |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2899466A (en) * | 1959-08-11 | Purification of terephthalic acid | ||
US2744938A (en) * | 1952-07-24 | 1956-05-08 | Universal Oil Prod Co | Removal of color impurities from organic compounds |
US3058997A (en) * | 1958-05-23 | 1962-10-16 | Richfield Oil Corp | Phthalic acid products purification |
-
1964
- 1964-03-25 GB GB12641/64A patent/GB994769A/en not_active Expired
- 1964-03-25 FR FR968692A patent/FR1433325A/en not_active Expired
- 1964-03-25 DE DEST21895A patent/DE1299628B/en active Pending
- 1964-03-25 SE SE3749/64A patent/SE309413B/xx unknown
- 1964-03-25 DK DK152964AA patent/DK128489B/en unknown
- 1964-03-26 NL NL646403348A patent/NL139017B/en not_active IP Right Cessation
- 1964-03-27 AT AT269964A patent/AT250335B/en active
- 1964-03-27 BE BE645853A patent/BE645853A/xx unknown
- 1964-03-27 JP JP1678064A patent/JPS4116860B1/ja active Pending
- 1964-03-28 ES ES298097A patent/ES298097A1/en not_active Expired
- 1964-03-31 CH CH409464A patent/CH417564A/en unknown
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3522298A (en) * | 1966-03-30 | 1970-07-28 | Mobil Oil Corp | Terephthalic acid purification process |
JPS4939749B1 (en) * | 1966-09-01 | 1974-10-28 | ||
US3546285A (en) * | 1967-06-20 | 1970-12-08 | Celanese Corp | Process of purifying aromatic dicarboxylic acids |
EP1091922A1 (en) * | 1998-06-30 | 2001-04-18 | Eastman Chemical Company | Method of purifying aromatic dicarboxylic acids |
EP1091922A4 (en) * | 1998-06-30 | 2005-03-02 | Eastman Chem Co | Method of purifying aromatic dicarboxylic acids |
US6753290B1 (en) | 1999-07-29 | 2004-06-22 | Institut Kataliza Imeni G.K. Boreskova Sibirskogo Otdelenia Rossiiskoi Akademii Nauk | Catalytic composition, method for manufacturing thereof and method for the purification of terephthalic acid |
US7041847B2 (en) | 2001-01-31 | 2006-05-09 | Basf Aktiengesellschaft | Method for cleaning crude terephthalic acid and catalysts suitable for the same and containing carbon fibers |
WO2002060851A1 (en) * | 2001-01-31 | 2002-08-08 | Basf Aktiengesellschaft | Method for cleaning crude terephthalic acid and catalysts suitable for the same and containing carbon fibres |
CN100378057C (en) * | 2001-01-31 | 2008-04-02 | 巴斯福股份公司 | Process for the purification of crude terephthalic acid and catalysts containing carbon fibers suitable for this purpose |
WO2004035515A1 (en) * | 2002-10-15 | 2004-04-29 | Eastman Chemical Company | Process for production of a carboxylic acid/diol mixture suitable for use in polyester production |
US7276625B2 (en) | 2002-10-15 | 2007-10-02 | Eastman Chemical Company | Process for production of a carboxylic acid/diol mixture suitable for use in polyester production |
US7339072B2 (en) | 2002-10-15 | 2008-03-04 | Eastman Chemical Company | Process for production of a carboxylic acid/diol mixture suitable for use in polyester production |
US7193109B2 (en) | 2003-03-06 | 2007-03-20 | Eastman Chemical Company | Process for production of a carboxylic acid/diol mixture suitable for use in polyester production |
US7226986B2 (en) | 2003-03-06 | 2007-06-05 | Eastman Chemical Company | Process for production of a carboxylic acid/diol mixture suitable for use in polyester production |
US7214760B2 (en) | 2004-01-15 | 2007-05-08 | Eastman Chemical Company | Process for production of a carboxylic acid/diol mixture suitable for use in polyester production |
US7601795B2 (en) | 2004-01-15 | 2009-10-13 | Eastman Chemical Company | Process for production of a carboxylic acid/diol mixture suitable for use in polyester production |
Also Published As
Publication number | Publication date |
---|---|
CH417564A (en) | 1966-07-31 |
FR1433325A (en) | 1966-04-01 |
NL6403348A (en) | 1964-09-30 |
JPS4116860B1 (en) | 1966-09-24 |
AT250335B (en) | 1966-11-10 |
NL139017B (en) | 1973-06-15 |
ES298097A1 (en) | 1964-09-01 |
SE309413B (en) | 1969-03-24 |
DK128489B (en) | 1974-05-13 |
BE645853A (en) | 1964-07-16 |
DE1299628B (en) | 1969-07-24 |
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