GB1426461A - Dehydration catalysts - Google Patents

Dehydration catalysts

Info

Publication number
GB1426461A
GB1426461A GB3403373A GB3403373A GB1426461A GB 1426461 A GB1426461 A GB 1426461A GB 3403373 A GB3403373 A GB 3403373A GB 3403373 A GB3403373 A GB 3403373A GB 1426461 A GB1426461 A GB 1426461A
Authority
GB
United Kingdom
Prior art keywords
dehydration
diolefins
diol
july
neutral
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
Application number
GB3403373A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie Francaise de Raffinage SA
Original Assignee
Compagnie Francaise de Raffinage SA
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.)
Filing date
Publication date
Priority claimed from FR7225770A external-priority patent/FR2192083A2/en
Priority claimed from FR7300402A external-priority patent/FR2213256A2/en
Application filed by Compagnie Francaise de Raffinage SA filed Critical Compagnie Francaise de Raffinage SA
Publication of GB1426461A publication Critical patent/GB1426461A/en
Expired legal-status Critical Current

Links

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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
    • B01J37/0018—Addition of a binding agent or of material, later completely removed among others as result of heat treatment, leaching or washing,(e.g. forming of pores; protective layer, desintegrating by heat)
    • 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
    • B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/24—Chromium, molybdenum or tungsten
    • B01J23/26—Chromium
    • 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
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/14—Phosphorus; Compounds thereof
    • B01J27/16—Phosphorus; Compounds thereof containing oxygen, i.e. acids, anhydrides and their derivates with N, S, B or halogens without carriers or on carriers based on C, Si, Al or Zr; also salts of Si, Al and Zr
    • B01J27/18—Phosphorus; Compounds thereof containing oxygen, i.e. acids, anhydrides and their derivates with N, S, B or halogens without carriers or on carriers based on C, Si, Al or Zr; also salts of Si, Al and Zr with metals other than Al or Zr
    • B01J27/1802—Salts or mixtures of anhydrides with compounds of other metals than V, Nb, Ta, Cr, Mo, W, Mn, Tc, Re, e.g. phosphates, thiophosphates
    • 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
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/14—Phosphorus; Compounds thereof
    • B01J27/186—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J27/188—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium with chromium, molybdenum, tungsten or polonium
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C1/00—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon
    • C07C1/20—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms
    • C07C1/24—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms by elimination of water
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2527/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • C07C2527/14—Phosphorus; Compounds thereof
    • C07C2527/16—Phosphorus; Compounds thereof containing oxygen
    • C07C2527/167—Phosphates or other compounds comprising the anion (PnO3n+1)(n+2)-

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

1426461 Diolefins COMPAGNIE FRANCAISE DE RAFFINAGE 17 July 1973 [17 July 1972 5 Jan 1973] 34033/73 Addition to 1355704 Heading C5E [Also in Divisions B1 and C2] Diolefins and/or olefinically unsaturated alcohols are produced by dehydrating a diol in the presence of a catalyst comprising (a) at least one neutral pyrophosphate of Li, Na, Sr and Ba, and (b) chromium in combined form in an amount of up to 2% wt. (calculated as metal) and/or at least one oxide, hydroxide or basic salt of an alkali or alkaline earth metal. The composition may also contain at least one neutral ortho phosphate of Li, Na, Sr or Ba. The examples describe the dehydration of 2- methyl butane 2, 3 diol at 350-400‹ C. to give a product containing predominantly isoprene. The dehydration of 2,3-butandiol to butadiene is also mentioned.
GB3403373A 1972-07-17 1973-07-17 Dehydration catalysts Expired GB1426461A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7225770A FR2192083A2 (en) 1970-04-16 1972-07-17 Dehydration catalysts - esp for organic diols consisting of a pyrophosphate of lithium, sodium strontium or barium and contg a chromium cpd
FR7300402A FR2213256A2 (en) 1973-01-05 1973-01-05 Dehydration catalysts - esp for organic diols consisting of a pyrophosphate of lithium, sodium strontium or barium and contg a chromium cpd

Publications (1)

Publication Number Publication Date
GB1426461A true GB1426461A (en) 1976-02-25

Family

ID=26217219

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3403373A Expired GB1426461A (en) 1972-07-17 1973-07-17 Dehydration catalysts

Country Status (7)

Country Link
JP (1) JPS4979989A (en)
AT (1) AT338218B (en)
CA (1) CA1023767A (en)
DE (1) DE2335568A1 (en)
GB (1) GB1426461A (en)
IT (1) IT1048129B (en)
NL (1) NL7309941A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2904518C2 (en) * 1979-02-07 1981-04-16 Chemische Werke Hüls AG, 4370 Marl Process for the preparation of pure?,? -C? 6? to C? 20? -alkenols
JP6229721B2 (en) * 2013-09-12 2017-11-15 東レ株式会社 Method for producing butadiene

Also Published As

Publication number Publication date
DE2335568A1 (en) 1974-01-31
NL7309941A (en) 1974-01-21
ATA623273A (en) 1976-12-15
CA1023767A (en) 1978-01-03
AT338218B (en) 1977-08-10
JPS4979989A (en) 1974-08-01
IT1048129B (en) 1980-11-20

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee