GB1003840A - Process for the purification of polyolefines having high-molecular weight - Google Patents
Process for the purification of polyolefines having high-molecular weightInfo
- Publication number
- GB1003840A GB1003840A GB52493/64A GB5249364A GB1003840A GB 1003840 A GB1003840 A GB 1003840A GB 52493/64 A GB52493/64 A GB 52493/64A GB 5249364 A GB5249364 A GB 5249364A GB 1003840 A GB1003840 A GB 1003840A
- Authority
- GB
- United Kingdom
- Prior art keywords
- washing
- complex
- water
- ethylene
- agent
- 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
- 229920000098 polyolefin Polymers 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 2
- 238000000746 purification Methods 0.000 title abstract 2
- 238000005406 washing Methods 0.000 abstract 5
- 239000003795 chemical substances by application Substances 0.000 abstract 3
- -1 phosphates Chemical class 0.000 abstract 3
- 239000004094 surface-active agent Substances 0.000 abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- 229910019142 PO4 Inorganic materials 0.000 abstract 2
- 239000003054 catalyst Substances 0.000 abstract 2
- 235000021317 phosphate Nutrition 0.000 abstract 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 abstract 2
- 239000002798 polar solvent Substances 0.000 abstract 2
- 150000003839 salts Chemical class 0.000 abstract 2
- UEUXEKPTXMALOB-UHFFFAOYSA-J tetrasodium;2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxylatomethyl)amino]acetate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O UEUXEKPTXMALOB-UHFFFAOYSA-J 0.000 abstract 2
- QWYXNPUTSOVWEA-UHFFFAOYSA-N 2-octylphenol;sodium Chemical compound [Na].CCCCCCCCC1=CC=CC=C1O QWYXNPUTSOVWEA-UHFFFAOYSA-N 0.000 abstract 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 abstract 1
- 239000004698 Polyethylene Substances 0.000 abstract 1
- 239000004743 Polypropylene Substances 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 150000007513 acids Chemical class 0.000 abstract 1
- 150000001298 alcohols Chemical class 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 235000011180 diphosphates Nutrition 0.000 abstract 1
- 230000008034 disappearance Effects 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 abstract 1
- 150000002902 organometallic compounds Chemical class 0.000 abstract 1
- 235000011007 phosphoric acid Nutrition 0.000 abstract 1
- 150000003016 phosphoric acids Chemical class 0.000 abstract 1
- 229920000573 polyethylene Polymers 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 238000006116 polymerization reaction Methods 0.000 abstract 1
- 229920001155 polypropylene Polymers 0.000 abstract 1
- 239000012266 salt solution Substances 0.000 abstract 1
- 239000008234 soft water Substances 0.000 abstract 1
- 150000003623 transition metal compounds Chemical class 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F6/00—Post-polymerisation treatments
- C08F6/02—Neutralisation of the polymerisation mass, e.g. killing the catalyst also removal of catalyst residues
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Polyethers (AREA)
Abstract
A process for the purification of high molecular weight polyolefines obtained by polymerization using a catalyst comprising an organometallic compound and a transition metal compound, characterized in that after decomposition of the catalyst complex with alcohols, impurities are removed from the polyolefine by washing with a mixture of an aqueous solution of a non-ionic surface-active agent and a complex-forming agent in the presence of non-polar or weakly polar solvents, whereafter the polyolefine is separated from the wash medium until the disappearance of the surface-active agent from the washing water, and then the polyvalent salt solution of the complex-forming agent is extracted from the polymer with a non-polar or weakly polar solvent. The complex forming agent may be selected from water-soluble salts of phosphoric acids including phosphates, pyrophosphates and polymeric phosphates and aminopolycarboxylic acids or salts thereof, for example the sodium salt of ethylene-diamine-tetra-acetic acid or nitrilotriacetic acid. In the example, polyethylene or polypropylene are treated with an alcohol and then purified by washing with a mixutre of water, the sodium salt of ethylene-diaminetetra-acetic acid and octylphenol condensed with ethylene oxide at a pH of 9 to 11, followed by washing out with soft water until the surfaceactive agent disappers from the washing water.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR878678A FR1305205A (en) | 1961-11-13 | 1961-11-13 | High molecular weight polyolefin purification process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1003840A true GB1003840A (en) | 1965-09-08 |
Family
ID=8766525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB52493/64A Expired GB1003840A (en) | 1961-11-13 | 1961-11-04 | Process for the purification of polyolefines having high-molecular weight |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE610568A (en) |
| FR (1) | FR1305205A (en) |
| GB (1) | GB1003840A (en) |
-
1961
- 1961-11-04 GB GB52493/64A patent/GB1003840A/en not_active Expired
- 1961-11-13 FR FR878678A patent/FR1305205A/en not_active Expired
- 1961-11-21 BE BE610568A patent/BE610568A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR1305205A (en) | 1962-09-28 |
| BE610568A (en) | 1962-03-16 |
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