BE802383R - Dehydration catalysts - esp for organic diols consisting of a pyrophosphate of lithium, sodium strontium or barium and contg a chromium cpd - Google Patents

Dehydration catalysts - esp for organic diols consisting of a pyrophosphate of lithium, sodium strontium or barium and contg a chromium cpd

Info

Publication number
BE802383R
BE802383R BE133511A BE133511A BE802383R BE 802383 R BE802383 R BE 802383R BE 133511 A BE133511 A BE 133511A BE 133511 A BE133511 A BE 133511A BE 802383 R BE802383 R BE 802383R
Authority
BE
Belgium
Prior art keywords
pyrophosphate
contg
esp
barium
lithium
Prior art date
Application number
BE133511A
Other languages
French (fr)
Original Assignee
Franc De Comp
Raffinage Cie Francaise
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
Application filed by Franc De Comp, Raffinage Cie Francaise filed Critical Franc De Comp
Application granted granted Critical
Publication of BE802383R publication Critical patent/BE802383R/en

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
    • 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
    • B01J27/1806—Salts or mixtures of anhydrides with compounds of other metals than V, Nb, Ta, Cr, Mo, W, Mn, Tc, Re, e.g. phosphates, thiophosphates with alkaline or alkaline earth 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
    • 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
    • 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)
  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The parent specification describes dehydration catalysts consisting of at least one (mixed) pyrophosphate of >=1 of the metals Li, Na, Sr and Ba and optionally at least one orthophosphate of >=1 of the metals Li, Na, Sr or Ba. The activity, stability and selectivity of the catalysts are now improved by the incorporation of =2 wt.% (as Cr) of a chromium compound, on total weight of the catalyst. The catalysts are especially useful for dehydrating organic diols to alkadienes.
BE133511A 1972-07-17 1973-07-16 Dehydration catalysts - esp for organic diols consisting of a pyrophosphate of lithium, sodium strontium or barium and contg a chromium cpd BE802383R (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
BE802383R true BE802383R (en) 1974-01-16

Family

ID=9101954

Family Applications (1)

Application Number Title Priority Date Filing Date
BE133511A BE802383R (en) 1972-07-17 1973-07-16 Dehydration catalysts - esp for organic diols consisting of a pyrophosphate of lithium, sodium strontium or barium and contg a chromium cpd

Country Status (1)

Country Link
BE (1) BE802383R (en)

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