GB1454690A - Hydrogenation of molten aldehydic dimethyl terephthalate - Google Patents
Hydrogenation of molten aldehydic dimethyl terephthalateInfo
- Publication number
- GB1454690A GB1454690A GB5217174A GB5217174A GB1454690A GB 1454690 A GB1454690 A GB 1454690A GB 5217174 A GB5217174 A GB 5217174A GB 5217174 A GB5217174 A GB 5217174A GB 1454690 A GB1454690 A GB 1454690A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aldehydic
- hydrogenation
- molten
- dmt
- dimethyl terephthalate
- 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/28—Preparation of carboxylic acid esters by modifying the hydroxylic moiety of the ester, such modification not being an introduction of an ester group
- C07C67/283—Preparation of carboxylic acid esters by modifying the hydroxylic moiety of the ester, such modification not being an introduction of an ester group by hydrogenation of unsaturated carbon-to-carbon bonds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1454690 Hydrogenation of molten aldehydic dimethyl terephthalate HERCULES Inc 3 Dec 1974 [2 Jan 1974] 52171/74 Heading C2C In a process for treating molten aldehydic DMT by subjecting it to catalytic hydrogenation with a catalyst that not only promotes hydrogenation of the aldehydic content, but also tends to the temperature of the molten DMT to promote ring hydrogenation, the improvement for minimizing said ring hydrogenation comprises contacting said molten aldehydic DMT at a temperature of from 141 to 240 C. with (1) a quantity of molecular hydrogen sufficient to hydrogenate at least a substantial portion of said aldehydic content and (2) a catalytic quantity of said catalyst for a period of time sufficient for hydrogenation of at least a substantial portion of the aldehydic content, but insufficient for substantial ring hydrogenation,
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US43031774A | 1974-01-02 | 1974-01-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1454690A true GB1454690A (en) | 1976-11-03 |
Family
ID=23707005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5217174A Expired GB1454690A (en) | 1974-01-02 | 1974-12-03 | Hydrogenation of molten aldehydic dimethyl terephthalate |
Country Status (15)
| Country | Link |
|---|---|
| JP (1) | JPS5096538A (en) |
| BE (1) | BE823995A (en) |
| BG (1) | BG26365A3 (en) |
| BR (1) | BR7410952D0 (en) |
| CA (1) | CA1042918A (en) |
| DD (1) | DD118274A5 (en) |
| DE (1) | DE2460887A1 (en) |
| FR (1) | FR2272071A1 (en) |
| GB (1) | GB1454690A (en) |
| IN (1) | IN142692B (en) |
| IT (1) | IT1028152B (en) |
| NL (1) | NL7417057A (en) |
| RO (1) | RO65265A (en) |
| SU (1) | SU550974A3 (en) |
| TR (1) | TR18982A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7390869B2 (en) | 2005-06-13 | 2008-06-24 | Eastman Chemical Company | Process for removing metal species in the presence of hydrogen and a porous material and polyester polymer containing reduced amounts of metal species |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5432412A (en) * | 1977-08-16 | 1979-03-09 | Mitsui Petrochem Ind Ltd | Purification of ketone |
-
1974
- 1974-12-03 GB GB5217174A patent/GB1454690A/en not_active Expired
- 1974-12-16 CA CA216,081A patent/CA1042918A/en not_active Expired
- 1974-12-19 FR FR7441952A patent/FR2272071A1/fr not_active Withdrawn
- 1974-12-21 DE DE19742460887 patent/DE2460887A1/en not_active Withdrawn
- 1974-12-24 IN IN2849/CAL/74A patent/IN142692B/en unknown
- 1974-12-25 JP JP50004153A patent/JPS5096538A/ja active Pending
- 1974-12-30 RO RO7481013A patent/RO65265A/en unknown
- 1974-12-30 BE BE152051A patent/BE823995A/en unknown
- 1974-12-30 BR BR10952/74A patent/BR7410952D0/en unknown
- 1974-12-31 SU SU2093116A patent/SU550974A3/en active
- 1974-12-31 NL NL7417057A patent/NL7417057A/en not_active Application Discontinuation
- 1974-12-31 IT IT31151/74A patent/IT1028152B/en active
- 1974-12-31 BG BG028636A patent/BG26365A3/en unknown
-
1975
- 1975-01-02 DD DD183471A patent/DD118274A5/xx unknown
- 1975-01-02 TR TR18982A patent/TR18982A/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7390869B2 (en) | 2005-06-13 | 2008-06-24 | Eastman Chemical Company | Process for removing metal species in the presence of hydrogen and a porous material and polyester polymer containing reduced amounts of metal species |
| US8530609B2 (en) | 2005-06-13 | 2013-09-10 | Grupo Petrotemex, S.A. De C.V. | Process for removing metal species in the presence of hydrogen and a porous material and polyester polymer containing reduced amounts of metal species |
| US8921509B2 (en) | 2005-06-13 | 2014-12-30 | Grupo Petrotemex, S.A. De C.V. | Process for removing metal species in the presence of hydrogen and a porous material and polyester polymer containing reduced amounts of metal species |
Also Published As
| Publication number | Publication date |
|---|---|
| IN142692B (en) | 1977-08-13 |
| BR7410952D0 (en) | 1975-08-26 |
| BE823995A (en) | 1975-04-16 |
| TR18982A (en) | 1978-02-06 |
| SU550974A3 (en) | 1977-03-15 |
| JPS5096538A (en) | 1975-07-31 |
| DD118274A5 (en) | 1976-02-20 |
| RO65265A (en) | 1980-01-15 |
| DE2460887A1 (en) | 1975-07-10 |
| NL7417057A (en) | 1975-07-04 |
| IT1028152B (en) | 1979-01-30 |
| FR2272071A1 (en) | 1975-12-19 |
| BG26365A3 (en) | 1979-03-15 |
| CA1042918A (en) | 1978-11-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |