GB735706A - Improvements in or relating to the purification of aromatic hydrocarbons - Google Patents
Improvements in or relating to the purification of aromatic hydrocarbonsInfo
- Publication number
- GB735706A GB735706A GB1438452A GB1438452A GB735706A GB 735706 A GB735706 A GB 735706A GB 1438452 A GB1438452 A GB 1438452A GB 1438452 A GB1438452 A GB 1438452A GB 735706 A GB735706 A GB 735706A
- Authority
- GB
- United Kingdom
- Prior art keywords
- platinum
- catalyst
- platinum oxide
- liquid
- gas
- 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
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G45/00—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds
- C10G45/02—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing
- C10G45/04—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing characterised by the catalyst used
- C10G45/10—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing characterised by the catalyst used containing platinum group metals or compounds thereof
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/148—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound
- C07C7/163—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound by hydrogenation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Aromatic hydrocarbons are purified by passing in vapour phase together with a hydrogen-containing gas at atmospheric pressure or slightly above and at a temperature of between 350 DEG and 550 DEG C. over a platinum catalyst prepared by the reduction of platinum oxide under a liquid (see Group III). The hydrogen-containing gas may be town's gas or water gas. In examples the sulphur content of naphthalene and crude benzol is reduced; phenols are also removed from naphthalene; the naphthalene may first be washed with a detergent as described in Specification 694,327. Reference is also made to the treatment of benzene, toluene, and xylene. When the catalyst loses activity, it may be revivified by heating first in air diluted with inert gas and then in air alone at 650 DEG C. Specification 438,354 also is referred to.ALSO:Platinum catalyst for use in the purification of aromatic hydrocarbons (see Group IV (b)) is obtained by the reduction of platinum oxide under a liquid. The catalyst may be prepared (a) by spraying an inert carrier with an aqueous solution of chloroplatinic acid, converting the acid to platinum oxide (e.g. by mixing with fused sodium nitrate and washing the melt with water and dilute nitric acid), reducing the oxide to metal by refluxing with a liquid, e.g. alcohol, in the presence of hydrogen, distilling off the liquid in an inert atmosphere, and washing and drying the product; or (b) by spraying an inert carrier with an aqueous solution of aluminium nitrate and chloroplatinic acid, drying, treating the coated carrier with fused sodium nitrate to form alumina and platinum oxide, and then reducing the platinum oxide as in (a). The platinum oxide may also be prepared by heating platinum in oxygen under pressure or by treating platinic chloride with alkali followed by acetic acid. Suitable carriers are activated alumina, china clay, and "Alundum" (Registered Trade Mark). The catalyst may contain 1-10 per cent of platinum and may be revivified by heating first in air diluted with inert gas and then in air alone at 650 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1438452A GB735706A (en) | 1952-06-06 | 1952-06-06 | Improvements in or relating to the purification of aromatic hydrocarbons |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1438452A GB735706A (en) | 1952-06-06 | 1952-06-06 | Improvements in or relating to the purification of aromatic hydrocarbons |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB735706A true GB735706A (en) | 1955-08-24 |
Family
ID=10040216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1438452A Expired GB735706A (en) | 1952-06-06 | 1952-06-06 | Improvements in or relating to the purification of aromatic hydrocarbons |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB735706A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3052742A (en) * | 1959-06-15 | 1962-09-04 | Sun Oil Co | Removing nitrogen compounds from aromatic hydrocarbons by acid treatment |
| US3102151A (en) * | 1958-06-13 | 1963-08-27 | American Cyanamid Co | Process for the dealkylation of alkyl naphthalene |
| CN114029051A (en) * | 2021-12-23 | 2022-02-11 | 浙江微通催化新材料有限公司 | Platinum dioxide catalyst and preparation method thereof |
-
1952
- 1952-06-06 GB GB1438452A patent/GB735706A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3102151A (en) * | 1958-06-13 | 1963-08-27 | American Cyanamid Co | Process for the dealkylation of alkyl naphthalene |
| US3052742A (en) * | 1959-06-15 | 1962-09-04 | Sun Oil Co | Removing nitrogen compounds from aromatic hydrocarbons by acid treatment |
| CN114029051A (en) * | 2021-12-23 | 2022-02-11 | 浙江微通催化新材料有限公司 | Platinum dioxide catalyst and preparation method thereof |
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