公开(公告)号：JPS5839813B1

公开(公告)日：1983-09-01

申请号：JP2665771

申请日：1971-04-23

Applicant: STANDARD OIL CO OHIO

Inventor： DARIN JOHN K ,  KANITKAR DILEEP R

IPC: C07C51/265 ,  C07C63/307 ,  B01J27/08 ,  C07C51/21

公开(公告)号：US3491144A

公开(公告)日：1970-01-20

申请号：US3491144D

申请日：1966-09-20

Applicant: STANDARD OIL CO

Inventor： EMBER GEORGE ,  HANNEMANN DONALD E ,  DARIN JOHN K ,  ZIMMERSCHIED WILFORD J

IPC: C07C51/265 ,  C07C63/02

CPC classification number: C07C51/265 ,  C07C63/307

公开(公告)号：US3683016A

公开(公告)日：1972-08-08

申请号：US3683016D

申请日：1970-04-24

Applicant: STANDARD OIL CO

Inventor： DARIN JOHN K ,  KANITKAR DILEEP R

IPC: C07C51/265 ,  C07C63/02

CPC classification number: C07C51/265 ,  C07C63/307

Abstract: Reduced tendency for oxidation inhibition leading to formyl phthalic acids and methyl phthalic acids during liquid phase oxidation of 1,2,4-trimethylbenzene with molecular oxygen in the presence of acetic acid and catalysis provided by a source of bromine and staged use of two or more heavy metals is further reduced by staging addition of cobalt, manganese and cerium by maintaining a weight ratio of bromine to total metals above 1.0 in all stages and conducting the oxidation at a temperature in the range of 360*-440* F. with the last stage above 400* F. At the same time reduced oxidation of acetic acid to oxides of carbon and water and reduced requirements for total metal and bromine sources are achieved without sacrifice of reaction time or yield and quality of trimellitic acid.

Abstract translation: 在乙酸存在下，用分子氧在1,2,4-三甲基苯的液相氧化期间氧化抑制的趋势导致甲酰邻苯二甲酸和甲基邻苯二甲酸，由溴源提供的催化作用，并分阶段使用两种或更多种 重金属进一步通过分级添加钴，锰和铈进一步减少，通过将溴与总金属的重量比保持在所有阶段高于1.0，并在360°-440°F的温度下进行氧化，最后 同时在不牺牲反应时间或偏苯三酸的产率和质量的情况下，将乙酸氧化成碳和水的氧化物，同时降低对总金属和溴源的需求。

公开(公告)号：DE2119118C3

公开(公告)日：1980-12-18

申请号：DE2119118

申请日：1971-04-20

Applicant: STANDARD OIL CO., CHICAGO, ILL. (V.ST.A.)

Inventor： DARIN JOHN K ,  KANITKAR DILEEP R

IPC: C07C51/265 ,  C07C63/307

Abstract: Reduced tendency for oxidation inhibition leading to formyl phthalic acids and methyl phthalic acids during liquid phase oxidation of 1,2,4-trimethylbenzene with molecular oxygen in the presence of acetic acid and catalysis provided by a source of bromine and staged use of two or more heavy metals is further reduced by staging addition of cobalt, manganese and cerium by maintaining a weight ratio of bromine to total metals above 1.0 in all stages and conducting the oxidation at a temperature in the range of 360 DEG -440 DEG F. with the last stage above 400 DEG F. At the same time reduced oxidation of acetic acid to oxides of carbon and water and reduced requirements for total metal and bromine sources are achieved without sacrifice of reaction time or yield and quality of trimellitic acid.

公开(公告)号：CA803562A

公开(公告)日：1969-01-07

申请号：CA803562D

Applicant: STANDARD OIL CO

Inventor： EMBER GEORGE ,  DARIN JOHN K ,  HANNEMANN DONALD E ,  ZIMMERSCHIED WILFORD J

公开(公告)号：FR2090667A5

公开(公告)日：1972-01-14

申请号：FR7114642

申请日：1971-04-23

Applicant: STANDARD OIL CO

Inventor： DARIN JOHN K ,  KANITKAR DILEEP R

IPC: C07C51/265 ,  C07C51/00 ,  C07C63/00

Abstract: Reduced tendency for oxidation inhibition leading to formyl phthalic acids and methyl phthalic acids during liquid phase oxidation of 1,2,4-trimethylbenzene with molecular oxygen in the presence of acetic acid and catalysis provided by a source of bromine and staged use of two or more heavy metals is further reduced by staging addition of cobalt, manganese and cerium by maintaining a weight ratio of bromine to total metals above 1.0 in all stages and conducting the oxidation at a temperature in the range of 360 DEG -440 DEG F. with the last stage above 400 DEG F. At the same time reduced oxidation of acetic acid to oxides of carbon and water and reduced requirements for total metal and bromine sources are achieved without sacrifice of reaction time or yield and quality of trimellitic acid.

公开(公告)号：GB1353482A

公开(公告)日：1974-05-15

申请号：GB1107371

申请日：1971-04-23

Applicant: STANDARD OIL CO

Inventor： DARIN JOHN K ,  KANITKAR DILEEP R

IPC: C07C51/265 ,  C07C63/32 ,  B01J11/78

Abstract: 1353482 Trimellitic acid STANDARD OIL CO 23 April 1971 [24 April 1970] 11073/71 Heading C2C [Also in Division B1] Trimellitic acid is produced by subjecting pseudocumene in liquid phase to catalytic molecular oxygen oxidation in an oxidation medium comprising from 3À0 to 4À0 parts by weight of acetic acid per part by weight of pseudocumene and as catalyst, a combination of cobalt manganese, cerium and bromine sources, in which process the cobalt, manganese and cerium sources provide a total of from 0À2 to 0À4 weight per cent metals based on the amount of pseudocumene; the oxidation is conducted in a series of stages for each of which a substantially equal quantity of cerium is added to the oxidation medium and during each of which the weight of bromine (expressed as bromide ion) to total metal ions is from 1À5 : 1À0 to 5À0 : 1À0, the proportion of cerium ions to total metal ions is from 5 to 25 wt. per cent and the proportion of manganese ions to total metal ions is from 10 to 25 wt. per cent; all of the cobalt and from 10 to 25 wt. per cent of the manganese are added to the oxidation medium for the first stage; the remaining 75 to 90 wt. per cent of the manganese is added subsequently to the oxidation medium; the temperature in the last stage is upward from 400‹ F. and the temperature in the stage preceding the last stage is between 350‹ and 400‹ F. Examples are furnished.

公开(公告)号：BE766239A

公开(公告)日：1971-09-16

申请号：BE766239

申请日：1971-04-23

Applicant: STANDARD OIL CO

Inventor： DARIN JOHN K ,  KANITKAR DILEEP R

IPC: C07C51/265 ,  C07C

Abstract: Reduced tendency for oxidation inhibition leading to formyl phthalic acids and methyl phthalic acids during liquid phase oxidation of 1,2,4-trimethylbenzene with molecular oxygen in the presence of acetic acid and catalysis provided by a source of bromine and staged use of two or more heavy metals is further reduced by staging addition of cobalt, manganese and cerium by maintaining a weight ratio of bromine to total metals above 1.0 in all stages and conducting the oxidation at a temperature in the range of 360 DEG -440 DEG F. with the last stage above 400 DEG F. At the same time reduced oxidation of acetic acid to oxides of carbon and water and reduced requirements for total metal and bromine sources are achieved without sacrifice of reaction time or yield and quality of trimellitic acid.

公开(公告)号：DE2119118B2

公开(公告)日：1980-04-24

申请号：DE2119118

申请日：1971-04-20

Applicant: STANDARD OIL CO., CHICAGO, ILL. (V.ST.A.)

Inventor： DARIN JOHN K ,  KANITKAR DILEEP R

IPC: C07C51/265 ,  C07C63/32

Abstract: Reduced tendency for oxidation inhibition leading to formyl phthalic acids and methyl phthalic acids during liquid phase oxidation of 1,2,4-trimethylbenzene with molecular oxygen in the presence of acetic acid and catalysis provided by a source of bromine and staged use of two or more heavy metals is further reduced by staging addition of cobalt, manganese and cerium by maintaining a weight ratio of bromine to total metals above 1.0 in all stages and conducting the oxidation at a temperature in the range of 360 DEG -440 DEG F. with the last stage above 400 DEG F. At the same time reduced oxidation of acetic acid to oxides of carbon and water and reduced requirements for total metal and bromine sources are achieved without sacrifice of reaction time or yield and quality of trimellitic acid.