GB760438A - Improvements in or relating to method of destroying catalyst residues - Google Patents

Improvements in or relating to method of destroying catalyst residues

Info

Publication number
GB760438A
GB760438A GB19006/54A GB1900654A GB760438A GB 760438 A GB760438 A GB 760438A GB 19006/54 A GB19006/54 A GB 19006/54A GB 1900654 A GB1900654 A GB 1900654A GB 760438 A GB760438 A GB 760438A
Authority
GB
United Kingdom
Prior art keywords
styrene
ether
butadiene
mols
alkali metal
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
GB19006/54A
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.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
Esso Research and Engineering Co
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 by Exxon Research and Engineering Co, Esso Research and Engineering Co filed Critical Exxon Research and Engineering Co
Publication of GB760438A publication Critical patent/GB760438A/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
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/90—Regeneration or reactivation
    • B01J23/92—Regeneration or reactivation of catalysts comprising metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
    • C08C2/00—Treatment of rubber solutions
    • C08C2/02—Purification
    • C08C2/04—Removal of catalyst residues
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/584—Recycling of catalysts

Abstract

In the polymerization of unsaturated hydrocarbons employing alkali metal catalysts, particularly sodium, residual catalyst is destroyed by adding at least 2 mols. of aqueous acetic acid containing at least one mol. of acid and no more than 3 mols. of water per mol. of alkali metal. The process is particularly applicable to the preparation of drying oils by the copolymerization of butadiene and styrene in the presence of finely-divided metallic sodium, an inert hydrocarbon diluent such as naphtha, mineral spirit, pentane, xylene, toluene, benzene and cyclohexane, and an ether such as diethyl ether, diisopropyl ether, dioxane, vinyl ethyl ether, vinyl isobutyl ether, anisole and phenetole. A small amount of aliphatic alcohol, particularly isopropanol or tertiary butanol, may also be present. Part or all of the butadiene may be substituted with isoprene, piperylene, 2,3 - dimethyl - butadiene - 1,3, or 2 - methyl pentadiene-1,3 and, instead of styrene, p-methyl or p-ethyl styrene or a dimethyl styrene may be used.
GB19006/54A 1953-07-14 1954-06-29 Improvements in or relating to method of destroying catalyst residues Expired GB760438A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US760438XA 1953-07-14 1953-07-14

Publications (1)

Publication Number Publication Date
GB760438A true GB760438A (en) 1956-10-31

Family

ID=22129594

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19006/54A Expired GB760438A (en) 1953-07-14 1954-06-29 Improvements in or relating to method of destroying catalyst residues

Country Status (2)

Country Link
FR (1) FR1104314A (en)
GB (1) GB760438A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1003945A3 (en) * 1990-10-04 1992-07-22 Fina Research Bleaching process of polymer resineux vinylaromatic diene-type conjugate.

Also Published As

Publication number Publication date
FR1104314A (en) 1955-11-18

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