CA2016347A1 - Procede de fabrication d'acide o-toluique pur - Google Patents

Procede de fabrication d'acide o-toluique pur

Info

Publication number: CA2016347A1
Authority: CA; Canada
Prior art keywords: toluic acid; purity; acid; xylene; crude
Prior art date: 1989-05-17
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

Application number

CA2016347A

Other languages

English (en)

Other versions

CA2016347C (fr

Inventor

Nobuyuki Tokura

Tadayoshi Takefumi

Shunichi Matsumoto

Yoshihiro Shiokawa

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Mitsubishi Gas Chemical Co Inc

Original Assignee

Mitsubishi Gas Chemical Co Inc

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.)

1989-05-17

Filing date

1990-05-09

Publication date

1990-11-17

1990-05-09 Application filed by Mitsubishi Gas Chemical Co Inc filed Critical Mitsubishi Gas Chemical Co Inc

1990-11-17 Publication of CA2016347A1 publication Critical patent/CA2016347A1/fr

1997-03-25 Application granted granted Critical

1997-03-25 Publication of CA2016347C publication Critical patent/CA2016347C/fr

2010-05-09 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

ZWLPBLYKEWSWPD-UHFFFAOYSA-N o-toluic acid Chemical compound CC1=CC=CC=C1C(O)=O ZWLPBLYKEWSWPD-UHFFFAOYSA-N 0.000 title abstract 10
238000000034 method Methods 0.000 title abstract 4
238000004519 manufacturing process Methods 0.000 title abstract 3
CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical group CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 abstract 6
229940078552 o-xylene Drugs 0.000 abstract 3
QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 abstract 2
238000009835 boiling Methods 0.000 abstract 2
238000004821 distillation Methods 0.000 abstract 2
238000001640 fractional crystallisation Methods 0.000 abstract 2
230000003647 oxidation Effects 0.000 abstract 2
238000007254 oxidation reaction Methods 0.000 abstract 2
XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 abstract 2
MBIGBQIEPKEBLI-UHFFFAOYSA-N (2-methylphenyl)methyl 2-methylbenzoate Chemical group CC1=CC=CC=C1COC(=O)C1=CC=CC=C1C MBIGBQIEPKEBLI-UHFFFAOYSA-N 0.000 abstract 1
239000005711 Benzoic acid Substances 0.000 abstract 1
239000003905 agrochemical Substances 0.000 abstract 1
229910021529 ammonia Inorganic materials 0.000 abstract 1
235000010233 benzoic acid Nutrition 0.000 abstract 1
239000003814 drug Substances 0.000 abstract 1
229940079593 drug Drugs 0.000 abstract 1
238000005194 fractionation Methods 0.000 abstract 1
239000003505 polymerization initiator Substances 0.000 abstract 1
238000000746 purification Methods 0.000 abstract 1
239000002994 raw material Substances 0.000 abstract 1
239000002351 wastewater Substances 0.000 abstract 1

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
- C07C51/44—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation

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)

CA002016347A 1989-05-17 1990-05-09 Procede de fabrication d'acide o-toluique pur Expired - Lifetime CA2016347C (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP121590/1989		1989-05-17
JP1121590A JP2676910B2 (ja)	1989-05-17	1989-05-17	高純度０‐トルイル酸の製造法

Publications (2)

Publication Number	Publication Date
CA2016347A1 true CA2016347A1 (fr)	1990-11-17
CA2016347C CA2016347C (fr)	1997-03-25

Family

ID=14815015

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA002016347A Expired - Lifetime CA2016347C (fr)	1989-05-17	1990-05-09	Procede de fabrication d'acide o-toluique pur

Country Status (5)

Country	Link
US (1)	US5011987A (fr)
EP (1)	EP0398282B1 (fr)
JP (1)	JP2676910B2 (fr)
CA (1)	CA2016347C (fr)
DE (1)	DE69002867T2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5990233A (en) *	1996-08-16	1999-11-23	National Starch And Chemical Investment Holding Corporation	Rheology modifiers for use in aqueous compositions
US7960600B2 (en) *	2009-05-28	2011-06-14	Uop Llc	Process for improved meta-xylene yield from C8 aromatics
CN110423207B (zh) *	2019-09-02	2022-08-12	三门峡环宇生化科技有限公司	一种邻氯苯腈的合成方法
CN113501754B (zh) *	2021-07-08	2024-05-10	山东友道化学有限公司	邻二甲苯或间二甲苯氧化反应液的处理方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CA547010A (fr) *		1957-10-01	C. Rapean John	Procede pour l'epuration d'acides carboxyliques de benzine substituee d'alkyle tertiaire
CA553081A (fr) *		1958-02-11	M. Himel Chester	Epuration d'acides toluiques
US3235588A (en) *		1966-02-15		Purification of benzoic acid
US2653165A (en) *	1950-09-27	1953-09-22	California Research Corp	Oxidation process
US2785199A (en) *	1952-07-01	1957-03-12	Richfield Oil Corp	Purification of toluic acids
US2712549A (en) *	1953-10-23	1955-07-05	Richfield Oil Corp	Process of preparing toluic acids
US2723995A (en) *	1954-02-19	1955-11-15	California Research Corp	Process for recovering benzoic and toluic acids
US2712551A (en) *	1954-05-18	1955-07-05	Richfield Oil Corp	Process of preparing toluic acids
US2906775A (en) *	1957-05-06	1959-09-29	Dow Chemical Co	Process for producing aromatic acids
US3607920A (en) *	1967-10-20	1971-09-21	Cowles Chem Co	Process for the preparation of high purity isomers of toluic acid
GB1509461A (en) *	1975-10-08	1978-05-04	Wellworthy Ltd	Pistons
DE2636489C2 (de) *	1976-08-13	1984-01-12	Bayer Ag, 5090 Leverkusen	Verfahren zur Herstellung von Natriumbenzoat
JPS53112831A (en) *	1977-03-15	1978-10-02	Matsuyama Sekyu Kagaku Kk	Process for preparing toluylic acid
JPS5655341A (en) *	1979-10-12	1981-05-15	Nippon Jiyouriyuu Kogyo Kk	Preparation of high-purity o-toluic acid
JPH07116096B2 (ja) *	1986-12-04	1995-12-13	三菱瓦斯化学株式会社	高純度０−トルイル酸の製造方法

1989
- 1989-05-17 JP JP1121590A patent/JP2676910B2/ja not_active Expired - Lifetime
1990
- 1990-05-09 CA CA002016347A patent/CA2016347C/fr not_active Expired - Lifetime
- 1990-05-15 US US07/523,868 patent/US5011987A/en not_active Expired - Lifetime
- 1990-05-16 DE DE90109225T patent/DE69002867T2/de not_active Expired - Lifetime
- 1990-05-16 EP EP90109225A patent/EP0398282B1/fr not_active Expired - Lifetime

Also Published As

Publication number	Publication date
DE69002867T2 (de)	1994-03-31
JPH02304046A (ja)	1990-12-17
DE69002867D1 (de)	1993-09-30
EP0398282B1 (fr)	1993-08-25
JP2676910B2 (ja)	1997-11-17
EP0398282A1 (fr)	1990-11-22
US5011987A (en)	1991-04-30
CA2016347C (fr)	1997-03-25

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Legal Events

Date	Code	Title	Description
1994-08-11	EEER	Examination request
2010-05-09	MKEX	Expiry