GB1257024A - - Google Patents

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Publication number
GB1257024A
GB1257024A GB1257024DA GB1257024A GB 1257024 A GB1257024 A GB 1257024A GB 1257024D A GB1257024D A GB 1257024DA GB 1257024 A GB1257024 A GB 1257024A
Authority
GB
United Kingdom
Prior art keywords
cyclotriphosphazene
pnt
tris
components
desorption
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
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
Application filed filed Critical
Publication of GB1257024A publication Critical patent/GB1257024A/en
Expired legal-status Critical Current

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Classifications

    • 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
    • C07C7/152—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound by forming adducts or complexes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Water Supply & Treatment (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

1,257,024. Separating aromatic hydrocarbon mixtures. BRITISH PETROLEUM CO. Ltd. 4 Feb., 1969 [6 Feb., 1968], No. 5795/68. Addition to 1,104,314. Heading C5E. One or more components of a hydrocarbon mixture comprising C 8 and/or C 9 , alkyl and/or alkenyl, aromatic hydrocarbons are separated by contact in the vapour phase with a PNT-type compound having the basic nuclear structure and which forms an inclusion complex more readily with one or more components of the mixture than with the other components, followed by partial desorption in the vapour phase of the more readily absorbed component(s) by partial pressure stripping or inert gas elution, the desorption being so conducted that the PNT-type compound is maintained as an inclusion complex and contains at all times a minimum of 70% of its maximum uptake of included material. The process is continuous and comprises repeated absorption and desorption cycles as above. Suitable PNT compounds are tris-(o-phenylenedioxy) cyclotriphosphazene, tris - (o - phenylenediamino) cyclotriphosphazene and tris-(2,3-naphthyldioxy) cyclotriphosphazene. Such compounds may be used in the free state, or admixed with a thermosetting resin binder, or on an inert support.
GB1257024D 1968-02-06 1968-02-06 Expired GB1257024A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB579568 1968-02-06

Publications (1)

Publication Number Publication Date
GB1257024A true GB1257024A (en) 1971-12-15

Family

ID=9802767

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1257024D Expired GB1257024A (en) 1968-02-06 1968-02-06

Country Status (1)

Country Link
GB (1) GB1257024A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees