GB760438A - Improvements in or relating to method of destroying catalyst residues - Google Patents
Improvements in or relating to method of destroying catalyst residuesInfo
- 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
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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
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.
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)
| 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. |
-
1954
- 1954-06-29 GB GB19006/54A patent/GB760438A/en not_active Expired
- 1954-07-12 FR FR1104314D patent/FR1104314A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1104314A (en) | 1955-11-18 |
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