JPH06502653A - 還元して精製テレフタル酸を調製するのに適する粗製テレフタル酸の調製方法 - Google Patents
還元して精製テレフタル酸を調製するのに適する粗製テレフタル酸の調製方法Info
- Publication number
- JPH06502653A JPH06502653A JP4508869A JP50886992A JPH06502653A JP H06502653 A JPH06502653 A JP H06502653A JP 4508869 A JP4508869 A JP 4508869A JP 50886992 A JP50886992 A JP 50886992A JP H06502653 A JPH06502653 A JP H06502653A
- Authority
- JP
- Japan
- Prior art keywords
- acid
- filter
- terephthalic acid
- cake
- water
- 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.)
- Granted
Links
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Artificial Filaments (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
Description
Claims (10)
- 1.炭素原子が約1ないし約5個の脂肪族カルボン酸の存在下で、アルキル芳香 族炭化水素をポリカルボン酸に酸化して粗製ポリカルボン酸を調製することによ って得られる粗製芳香族ポリカルボン酸の調製方法であって、粗製ポリカルボン 酸によって保有される母液中の脂肪族カルボン酸の濃度が、存在する粗製ポリカ ルボン酸の重量に対して約5000重量ppm以下であり、かつ脂肪族カルボン 酸を水で置換する方法において、該方法が、(a)炭素原子が約1ないし5佃の 脂肪族カルボン酸を含む母液中の粗製芳香族ポリカルボン酸のスラリーの流れを 、適当な位置に保持され、それによって、各フィルターセルの中にスラリーを導 入すると、各フィルターセルはフィルターセルの中に濾過ケークを生成させる一 個または一連のフィルターセルに導入し、(b)濾過ケークが蓄積すると、各フ ィルターセルヘのスラリーの流れを中断し、 (c)濾過ケークにおおいかぶさる深さに濾過ケークを覆うだけの水の溜りをフ ィルターセル中に形成させるように、各フィルターセル中に水の流れを導入し、 ここで水の圧力は正圧置換によって濾過ケークから脂肪族カルボン酸を置換する のに充分な系圧を上回る範囲の圧であり、(d)正圧置換によって濾過ケークか ら脂肪族カルボン酸を置換し、(e)工程(c)および(d)を繰返して、脂肪 族カルボン酸による混入度合と逆の順序に各フィルターセル中の濾過ケークを洗 浄する向流法において脂肪酸含量が逐次殖えているフィルターセル中の濾過ケー クを連続的に洗浄し、さらに(f)一連のフィルターセルから、母液中に保有さ れる5000重量ppm以下の脂肪酸を含有する粗製芳香族ポリカルボン酸を排 出する、工程を含むことを特徴とする方法。
- 2.アルキル芳香族炭化水素が、パラキシレン、メタキシレン、ジイソプロピル ベンゼン、ジエチルベンゼン、および2,6−ジメチルナフタレンより成る群が ら選ばれることを特徴とする請求項1記載の方法。
- 3.工程(c)の水の流れの導入および工程(d)の脂肪族カルボン酸の置換を 、濾過ケーク中の脂肪族カルボン酸の濃度を、存在する粗製ポリカルボン酸の重 置に対して、約5000重量ppm以下に減少させるように繰返し、さらに、該 濾過ケークを向流法で洗浄することを特徴とする請求項1記載の方法。
- 4.アルキル芳香族炭化水素がパラキシレン、脂肪族カルボン酸が酢酸、および 粗製芳香族ポリカルボン酸が粗製テレフタル酸であることを特徴とする請求項1 記載の方法。
- 5.アルキル芳香族炭化水素がパラキシレン、炭素原子が1ないし5個の前記脂 肪族カルボン酸が酢酸および前記粗製芳香族ポリカルボン酸が粗製テレフタル酸 であることを特徴とする請求項3記載の方法。
- 6.母液に保有される5000重量ppm以下の脂肪酸を含有する工程(f)か らの粗製芳香族ポリカルボン酸を水性媒質中に排出させて、第VIII族金属触 媒および水素の存在下で水素化して、精製芳香族ポリカルボン酸を調製すること を特徴とする請求項1記載の方法。
- 7.粗製芳香族ポリカルボン酸が粗製テレフタル酸で、精製ポリカルボン酸が精 製テレフタル酸であることを特徴とする請求項6記載の方法。
- 8.濾過ケークの厚さが約0.5ないし約8インチであることを特徴とする請求 項1記載の方法。
- 9.濾過ケークの厚さが約2ないし約8インチであることを特徴とする請求項8 記載の方法。
- 10.水の圧力が系の圧力を約0.5ないし約65psi上回る範囲内にあるこ とを特徴とする請求項1記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US68522191A | 1991-04-12 | 1991-04-12 | |
US685,221 | 1991-04-12 | ||
PCT/US1992/002909 WO1992018453A1 (en) | 1991-04-12 | 1992-04-09 | Process for preparation of terephthalic acid |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH06502653A true JPH06502653A (ja) | 1994-03-24 |
JP2620820B2 JP2620820B2 (ja) | 1997-06-18 |
Family
ID=24751239
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4508869A Expired - Fee Related JP2620820B2 (ja) | 1991-04-12 | 1992-04-09 | 還元して精製テレフタル酸を調製するのに適する粗製テレフタル酸の調製方法 |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0579716B1 (ja) |
JP (1) | JP2620820B2 (ja) |
KR (1) | KR0180751B1 (ja) |
AT (1) | ATE156799T1 (ja) |
BR (1) | BR9205881A (ja) |
DE (1) | DE69221610T2 (ja) |
ES (1) | ES2104911T3 (ja) |
RU (1) | RU2114098C1 (ja) |
SG (1) | SG80548A1 (ja) |
WO (1) | WO1992018453A1 (ja) |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9104776D0 (en) * | 1991-03-07 | 1991-04-17 | Ici Plc | Process for the production of terephthalic acid |
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 |
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 |
US7351396B2 (en) | 2003-06-05 | 2008-04-01 | Eastman Chemical Company | Extraction process for removal of impurities from an aqueous mixture |
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 |
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 |
US20070238899A9 (en) | 2004-09-02 | 2007-10-11 | Robert Lin | Optimized production of aromatic dicarboxylic acids |
BRPI0514756A (pt) * | 2004-09-02 | 2008-06-24 | Eastman Chem Co | processo para produzir ácidos dicarboxìlicos aromáticos, e, aparelhagem |
US7888530B2 (en) | 2004-09-02 | 2011-02-15 | Eastman Chemical Company | Optimized production of aromatic dicarboxylic acids |
US7683210B2 (en) * | 2004-09-02 | 2010-03-23 | Eastman Chemical Company | Optimized liquid-phase oxidation |
CN102600770B (zh) * | 2004-09-02 | 2015-08-19 | 奇派特石化有限公司 | 芳族二羧酸的优化制备 |
US7959879B2 (en) | 2004-09-02 | 2011-06-14 | Grupo Petrotemex, S.A. De C.V. | Optimized production of aromatic dicarboxylic acids |
MY144892A (en) * | 2004-10-28 | 2011-11-30 | Grupo Petrotemex Sa De Cv | Process for removal of impurities from an oxidizer purge stream |
US7291270B2 (en) | 2004-10-28 | 2007-11-06 | Eastman Chemical Company | Process for removal of impurities from an oxidizer purge stream |
US7273559B2 (en) | 2004-10-28 | 2007-09-25 | Eastman Chemical Company | Process for removal of impurities from an oxidizer purge stream |
US7834208B2 (en) | 2005-05-19 | 2010-11-16 | Eastman Chemical Company | Process to produce a post catalyst removal composition |
US7884231B2 (en) | 2005-05-19 | 2011-02-08 | Eastman Chemical Company | Process to produce an enriched composition |
US7432395B2 (en) | 2005-05-19 | 2008-10-07 | Eastman Chemical Company | Enriched carboxylic acid composition |
US7304178B2 (en) | 2005-05-19 | 2007-12-04 | Eastman Chemical Company | Enriched isophthalic acid composition |
US7919652B2 (en) | 2005-05-19 | 2011-04-05 | Eastman Chemical Company | Process to produce an enriched composition through the use of a catalyst removal zone and an enrichment zone |
US7557243B2 (en) | 2005-05-19 | 2009-07-07 | Eastman Chemical Company | Enriched terephthalic acid composition |
US7880031B2 (en) | 2005-05-19 | 2011-02-01 | Eastman Chemical Company | Process to produce an enrichment feed |
US7741516B2 (en) | 2005-05-19 | 2010-06-22 | Eastman Chemical Company | Process to enrich a carboxylic acid composition |
US7897809B2 (en) | 2005-05-19 | 2011-03-01 | Eastman Chemical Company | Process to produce an enrichment feed |
US7402694B2 (en) | 2005-08-11 | 2008-07-22 | Eastman Chemical Company | Process for removal of benzoic acid from an oxidizer purge stream |
US7569722B2 (en) | 2005-08-11 | 2009-08-04 | Eastman Chemical Company | Process for removal of benzoic acid from an oxidizer purge stream |
US7567717B1 (en) | 2005-12-12 | 2009-07-28 | American Megatrends, Inc. | Method, system, and computer-readable medium for the adaptive filtering and compression of video data |
US20070203359A1 (en) | 2006-03-01 | 2007-08-30 | Philip Edward Gibson | Versatile oxidation byproduct purge process |
US7888529B2 (en) | 2006-03-01 | 2011-02-15 | Eastman Chemical Company | Process to produce a post catalyst removal composition |
US7863481B2 (en) | 2006-03-01 | 2011-01-04 | Eastman Chemical Company | Versatile oxidation byproduct purge process |
US7880032B2 (en) | 2006-03-01 | 2011-02-01 | Eastman Chemical Company | Versatile oxidation byproduct purge process |
US7897808B2 (en) | 2006-03-01 | 2011-03-01 | Eastman Chemical Company | Versatile oxidation byproduct purge process |
RU2695221C2 (ru) | 2013-12-30 | 2019-07-22 | Бипи Корпорейшен Норт Америка Инк. | Находящиеся под давлением сырьевые смеси, содержащие неочищенные ароматические карбоновые кислоты |
JP2015140342A (ja) * | 2014-01-30 | 2015-08-03 | 株式会社日立製作所 | 精製テレフタル酸の製造方法 |
CN105085231A (zh) * | 2014-05-20 | 2015-11-25 | 天华化工机械及自动化研究设计院有限公司 | 一种pta工业装置氧化单元中醋酸溶剂的处理方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3839436A (en) * | 1969-05-26 | 1974-10-01 | Standard Oil Co | Integration of para-or meta-xylene oxidation to terephthalic acid or isophthalic acid and its purification by hydrogen treatment of aqueous solution |
NO156927C (no) * | 1981-08-04 | 1987-12-23 | Mueller Drm Ag | Framgangsmte for kontinuerlig fortykning av suspensjoner. |
US4782181A (en) * | 1987-06-04 | 1988-11-01 | Amoco Corporation | Process for removal of high molecular weight impurities in the manufacture of purified terephthalic acid |
DE3729268A1 (de) * | 1987-09-02 | 1989-03-16 | Henkel Kgaa | Verfahren und anlage zur abtrennung und reinigung von celluloseethern und anderen cellulosederivaten |
-
1992
- 1992-04-09 SG SG9608574A patent/SG80548A1/en unknown
- 1992-04-09 AT AT92909323T patent/ATE156799T1/de not_active IP Right Cessation
- 1992-04-09 JP JP4508869A patent/JP2620820B2/ja not_active Expired - Fee Related
- 1992-04-09 RU RU93058133A patent/RU2114098C1/ru active
- 1992-04-09 BR BR9205881A patent/BR9205881A/pt not_active IP Right Cessation
- 1992-04-09 KR KR1019930703075A patent/KR0180751B1/ko not_active IP Right Cessation
- 1992-04-09 EP EP92909323A patent/EP0579716B1/en not_active Expired - Lifetime
- 1992-04-09 ES ES92909323T patent/ES2104911T3/es not_active Expired - Lifetime
- 1992-04-09 WO PCT/US1992/002909 patent/WO1992018453A1/en active IP Right Grant
- 1992-04-09 DE DE69221610T patent/DE69221610T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69221610D1 (de) | 1997-09-18 |
KR0180751B1 (ko) | 1999-05-15 |
BR9205881A (pt) | 1994-08-23 |
SG80548A1 (en) | 2001-05-22 |
JP2620820B2 (ja) | 1997-06-18 |
ES2104911T3 (es) | 1997-10-16 |
DE69221610T2 (de) | 1998-03-26 |
WO1992018453A1 (en) | 1992-10-29 |
RU2114098C1 (ru) | 1998-06-27 |
EP0579716B1 (en) | 1997-08-13 |
EP0579716A1 (en) | 1994-01-26 |
ATE156799T1 (de) | 1997-08-15 |
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