DE2560504
Graphite-contg. carbon for use as a carrier for platinum gp. catalysts (pref. 0.01-10 wt. %, esp. 0.1-5 wt. % of Pt or Ir) has a basis surface area of at least 100 m2/g. (pref. 150-1000 m2/g.); the ratio of the BET-surface area to the basis surface area is =5:1; and the ratio of the basis surface ar...
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| creator | CLARK, JOHN TREVOR KENT, WEYBRIDGE, SURREY, GB MACCARROLL, JOHN JAMES, CAMBERLEY, SURREY, GB TENNISON, STEVEN ROBERT, NEW HAW, SURREY, GB |
| description | Graphite-contg. carbon for use as a carrier for platinum gp. catalysts (pref. 0.01-10 wt. %, esp. 0.1-5 wt. % of Pt or Ir) has a basis surface area of at least 100 m2/g. (pref. 150-1000 m2/g.); the ratio of the BET-surface area to the basis surface area is =5:1; and the ratio of the basis surface area to the edge surface area is at least 5:1 (pref. >10:1, esp. >300:1). (The basis surface area is the area of crystal lamina main surfaces; the edge surface area denotes the area of crystal lamina edges; the BET-surface area is the sum of the basis surface area, edge surface area and the surface area of the amorphous phase). The catalyst may contain a minor amt. of alkali(ne earth) metal ions as modifiers (pref. Na) in a ratio of 10-300 atm. % w.r.t. the Pt. gp. metal. Catalysts contg. Pt.-gp. metals on the above graphite-contg. carbon support are esp. suitable for reactions involving hydrogen, in particular hydrogenation, dehydrogenation or dehydrocyclisation of hydrocarbons. High yields are obtained. Side reactions are suppressed. |
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(pref. 150-1000 m2/g.); the ratio of the BET-surface area to the basis surface area is =5:1; and the ratio of the basis surface area to the edge surface area is at least 5:1 (pref. >10:1, esp. >300:1). (The basis surface area is the area of crystal lamina main surfaces; the edge surface area denotes the area of crystal lamina edges; the BET-surface area is the sum of the basis surface area, edge surface area and the surface area of the amorphous phase). The catalyst may contain a minor amt. of alkali(ne earth) metal ions as modifiers (pref. Na) in a ratio of 10-300 atm. % w.r.t. the Pt. gp. metal. Catalysts contg. Pt.-gp. metals on the above graphite-contg. carbon support are esp. suitable for reactions involving hydrogen, in particular hydrogenation, dehydrogenation or dehydrocyclisation of hydrocarbons. High yields are obtained. Side reactions are suppressed.</description><edition>4</edition><language>eng</language><subject>ACYCLIC OR CARBOCYCLIC COMPOUNDS ; APPARATUS THEREFOR ; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY ; CHEMISTRY ; COMPOUNDS THEREOF ; GENERAL METHODS OF ORGANIC CHEMISTRY ; INORGANIC CHEMISTRY ; METALLURGY ; NON-METALLIC ELEMENTS ; ORGANIC CHEMISTRY ; PERFORMING OPERATIONS ; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL ; THEIR RELEVANT APPARATUS ; TRANSPORTING</subject><creationdate>1988</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19880218&DB=EPODOC&CC=DE&NR=2560504C2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76418</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19880218&DB=EPODOC&CC=DE&NR=2560504C2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>CLARK, JOHN TREVOR KENT, WEYBRIDGE, SURREY, GB</creatorcontrib><creatorcontrib>MACCARROLL, JOHN JAMES, CAMBERLEY, SURREY, GB</creatorcontrib><creatorcontrib>TENNISON, STEVEN ROBERT, NEW HAW, SURREY, GB</creatorcontrib><title>DE2560504</title><description>Graphite-contg. carbon for use as a carrier for platinum gp. catalysts (pref. 0.01-10 wt. %, esp. 0.1-5 wt. % of Pt or Ir) has a basis surface area of at least 100 m2/g. (pref. 150-1000 m2/g.); the ratio of the BET-surface area to the basis surface area is =5:1; and the ratio of the basis surface area to the edge surface area is at least 5:1 (pref. >10:1, esp. >300:1). (The basis surface area is the area of crystal lamina main surfaces; the edge surface area denotes the area of crystal lamina edges; the BET-surface area is the sum of the basis surface area, edge surface area and the surface area of the amorphous phase). The catalyst may contain a minor amt. of alkali(ne earth) metal ions as modifiers (pref. Na) in a ratio of 10-300 atm. % w.r.t. the Pt. gp. metal. Catalysts contg. Pt.-gp. metals on the above graphite-contg. carbon support are esp. suitable for reactions involving hydrogen, in particular hydrogenation, dehydrogenation or dehydrocyclisation of hydrocarbons. High yields are obtained. 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(pref. 150-1000 m2/g.); the ratio of the BET-surface area to the basis surface area is =5:1; and the ratio of the basis surface area to the edge surface area is at least 5:1 (pref. >10:1, esp. >300:1). (The basis surface area is the area of crystal lamina main surfaces; the edge surface area denotes the area of crystal lamina edges; the BET-surface area is the sum of the basis surface area, edge surface area and the surface area of the amorphous phase). The catalyst may contain a minor amt. of alkali(ne earth) metal ions as modifiers (pref. Na) in a ratio of 10-300 atm. % w.r.t. the Pt. gp. metal. Catalysts contg. Pt.-gp. metals on the above graphite-contg. carbon support are esp. suitable for reactions involving hydrogen, in particular hydrogenation, dehydrogenation or dehydrocyclisation of hydrocarbons. High yields are obtained. Side reactions are suppressed.</abstract><edition>4</edition><oa>free_for_read</oa></addata></record> |
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| subjects | ACYCLIC OR CARBOCYCLIC COMPOUNDS APPARATUS THEREFOR CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOUNDS THEREOF GENERAL METHODS OF ORGANIC CHEMISTRY INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING |
| title | DE2560504 |
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