GB1259297A

GB1259297A – – Google Patents

GB1259297A – – Google Patents

Info

Publication number
GB1259297A

GB1259297A

GB1259297DA
GB1259297A
GB 1259297 A
GB1259297 A
GB 1259297A

GB 1259297D A
GB1259297D A
GB 1259297DA
GB 1259297 A
GB1259297 A
GB 1259297A
Authority
GB
United Kingdom
Prior art keywords
palladium
carbon
granules
pellets
gauze
Prior art date
1967-12-20
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

Application number

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.)
1967-12-20
Filing date
1968-12-19
Publication date
1972-01-05

1968-12-19
Application filed
filed
Critical

1972-01-05
Publication of GB1259297A
publication
Critical
patent/GB1259297A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

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

B01J23/44—Palladium

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

B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts

B01J37/02—Impregnation, coating or precipitation

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

B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts

B01J37/02—Impregnation, coating or precipitation

B01J37/03—Precipitation; Co-precipitation

Abstract

1,259,297. Palladium-on-carbon catalysts. STANDARD OIL CO. 19 Dec., 1968 [20 Dec., 1967], No. 60436/68. Heading B1E. [Also in Division C2] Catalyst consisting of metallic palladium having a crystallite surface area upward from 0.6 m2/g supported on carbon having a surface area upward from 1000 m2/g is prepared by a process which comprises depositing a reducible compound of palladium on solid carbon support material having a surface area upward from 1000 m2/g and thereafter reducing the deposited palladium compound to metallic palladium in a hydrogen atmosphere at a temperature not greater than 538C. The metallic palladium may constitute from 0.1 to 10 weight per cent of the catalyst. The carbon, which may be in the form of filaments, rods, gauze, flakes, spheres, pellets or granules, preferably has a surface area of from 1500 to 5000 m2/g. As exemplified, the catalyst may be prepared either by suspending a gauze of carbon filaments in an aqueous solution of palladium chloride, drying the treated gauze and subjecting the dried gauze to reduction in a hydrogen atmosphere, for example at a temperature of 370C, or by mixing extruded carbon pellets with palladium hydrosol thereby to coat the pellets, drying the coated pellets and subjecting the dried pellets to reduction in a hydrogen atmosphere, for example at a temperature of 200-225C, or by stirring carbon granules in an aqueous solution of palladium nitrate, recovering the granules, drying the recovered granules and subjecting the dried granules to reduction in a hydrogen atomsphere, for example at a temperature of 455C. The catalyst may be used in the removal of formyl-substituted aromatic acid, for example p-formylbenzoic acid, from impure phthalic acid, for example terephthalic acid and/or isophthalic acid.

GB1259297D
1967-12-20
1968-12-19

Expired

GB1259297A
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

US69196467A

1967-12-20
1967-12-20

Publications (1)

Publication Number
Publication Date

GB1259297A
true

GB1259297A
(en)

1972-01-05

Family
ID=24778717
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB1259297D
Expired

GB1259297A
(en)

1967-12-20
1968-12-19

Country Status (14)

Country
Link

JP
(1)

JPS5218155B1
(en)

BE
(1)

BE725739A
(en)

BG
(1)

BG15204A3
(en)

BR
(1)

BR6804925D0
(en)

CS
(1)

CS154603B2
(en)

DE
(1)

DE1816236A1
(en)

ES
(1)

ES361685A1
(en)

FR
(1)

FR1598581A
(en)

GB
(1)

GB1259297A
(en)

LU
(1)

LU57619A1
(en)

NL
(1)

NL6818307A
(en)

RO
(1)

RO55544A
(en)

SU
(1)

SU444350A3
(en)

YU
(1)

YU33368B
(en)

Cited By (1)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

WO2006071407A1
(en)

*

2004-12-13
2006-07-06
Bp Corporation North America Inc.
Process for purification of aromatic carboxylic acids

Families Citing this family (1)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

WO1997047384A1
(en)

*

1996-06-14
1997-12-18
Hitachi, Ltd.
Catalyst for hydrogenation, and method of manufacturing same

1968

1968-12-17
BR
BR204925/68A
patent/BR6804925D0/en
unknown

1968-12-19
JP
JP43092707A
patent/JPS5218155B1/ja
active
Pending

1968-12-19
YU
YU03031/68A
patent/YU33368B/en
unknown

1968-12-19
NL
NL6818307A
patent/NL6818307A/xx
unknown

1968-12-19
GB
GB1259297D
patent/GB1259297A/en
not_active
Expired

1968-12-19
BE
BE725739D
patent/BE725739A/en
not_active
IP Right Cessation

1968-12-20
CS
CS868368A
patent/CS154603B2/cs
unknown

1968-12-20
FR
FR1598581D
patent/FR1598581A/fr
not_active
Expired

1968-12-20
LU
LU57619D
patent/LU57619A1/xx
unknown

1968-12-20
RO
RO58594A
patent/RO55544A/ro
unknown

1968-12-20
SU
SU1290858A
patent/SU444350A3/en
active

1968-12-20
DE
DE19681816236
patent/DE1816236A1/en
active
Pending

1968-12-20
ES
ES361685A
patent/ES361685A1/en
not_active
Expired

1969

1969-01-03
BG
BG011381A
patent/BG15204A3/en
unknown

Cited By (3)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

WO2006071407A1
(en)

*

2004-12-13
2006-07-06
Bp Corporation North America Inc.
Process for purification of aromatic carboxylic acids

CN101115705B
(en)

*

2004-12-13
2011-12-07
Bp北美公司
Process for purification of aromatic carboxylic acids

US8492583B2
(en)

2004-12-13
2013-07-23
Bp Corporation North America Inc.
Process for purification of aromatic carboxylic acids

Also Published As

Publication number
Publication date

YU33368B
(en)

1976-12-31

RO55544A
(en)

1973-08-20

FR1598581A
(en)

1970-07-06

BE725739A
(en)

1969-05-29

JPS5218155B1
(en)

1977-05-19

BG15204A3
(en)

1975-10-20

CS154603B2
(en)

1974-04-30

NL6818307A
(en)

1969-06-24

DE1816236A1
(en)

1969-08-14

LU57619A1
(en)

1969-04-08

YU303168A
(en)

1976-06-30

ES361685A1
(en)

1970-11-01

BR6804925D0
(en)

1973-04-12

SU444350A3
(en)

1974-09-25

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Legal Events

Date
Code
Title
Description

1972-05-17
PS
Patent sealed [section 19, patents act 1949]

1989-01-25
PE20
Patent expired after termination of 20 years

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