GB1531794A - Ultrafiltration process for the concentration of polymeric latices - Google Patents
Ultrafiltration process for the concentration of polymeric laticesInfo
- Publication number
- GB1531794A GB1531794A GB20782/76A GB2078276A GB1531794A GB 1531794 A GB1531794 A GB 1531794A GB 20782/76 A GB20782/76 A GB 20782/76A GB 2078276 A GB2078276 A GB 2078276A GB 1531794 A GB1531794 A GB 1531794A
- Authority
- GB
- United Kingdom
- Prior art keywords
- latex
- polymer
- feed zone
- rich fraction
- zone
- 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
- 229920000126 latex Polymers 0.000 title abstract 9
- 238000000108 ultra-filtration Methods 0.000 title abstract 2
- 239000004816 latex Substances 0.000 abstract 7
- 229920000642 polymer Polymers 0.000 abstract 5
- 239000012528 membrane Substances 0.000 abstract 3
- 238000000034 method Methods 0.000 abstract 2
- 239000002245 particle Substances 0.000 abstract 2
- 239000012466 permeate Substances 0.000 abstract 2
- 239000004094 surface-active agent Substances 0.000 abstract 2
- 244000043261 Hevea brasiliensis Species 0.000 abstract 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 abstract 1
- 230000008021 deposition Effects 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
- 230000004907 flux Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000007791 liquid phase Substances 0.000 abstract 1
- 229920003052 natural elastomer Polymers 0.000 abstract 1
- 229920001194 natural rubber Polymers 0.000 abstract 1
- 229920000915 polyvinyl chloride Polymers 0.000 abstract 1
- 239000004800 polyvinyl chloride Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
- C08C1/00—Treatment of rubber latex
- C08C1/02—Chemical or physical treatment of rubber latex before or during concentration
- C08C1/075—Concentrating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/145—Ultrafiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/18—Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/06—Tubular membrane modules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/10—Spiral-wound membrane modules
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
1531794 Concentrating latices ABCOR Inc 20 May 1976 20782/76 Headings C3E and C3L [Also in Division B1] An aqueous polymer latex is concentrated by adding a compatible surfactant to the latex, feeding the latex to the feed zone of an ultra filtration semipermeable membrane device comprising a feed zone and a permeate zone separated by a semipermeable membrane adapted to permit passage of liquid phase but not polymer particles, removing a liquid-rich fraction from the permeate zone and removing a polymer-rich fraction from the feed zone, the surfactant being added to the latex before or during feeding of the latex to the feed zone in an amount sufficient to maintain the polymer particles in dispersion in the polymer-rich fraction and preventing the deposition on the membrane of coagulum from the latex and maintaining an acceptable flux rate for the process. The latex may be, e.g., of natural rubber or, as in the processes exemplified, of polyvinyl chloride or butadiene-styrene rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB20782/76A GB1531794A (en) | 1976-05-20 | 1976-05-20 | Ultrafiltration process for the concentration of polymeric latices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB20782/76A GB1531794A (en) | 1976-05-20 | 1976-05-20 | Ultrafiltration process for the concentration of polymeric latices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1531794A true GB1531794A (en) | 1978-11-08 |
Family
ID=10151591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20782/76A Expired GB1531794A (en) | 1976-05-20 | 1976-05-20 | Ultrafiltration process for the concentration of polymeric latices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1531794A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2247191A (en) * | 1990-08-03 | 1992-02-26 | Kirton Engineering Limited | Water treatment |
| CN109369826A (en) * | 2018-09-21 | 2019-02-22 | 昌江金达乳胶制品有限公司 | Production method of ammonia-free natural concentrated latex |
| CN110709426A (en) * | 2017-06-07 | 2020-01-17 | 米其林集团总公司 | Process for purifying natural rubber by high pressure filtration of wet coagulum of natural rubber |
-
1976
- 1976-05-20 GB GB20782/76A patent/GB1531794A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2247191A (en) * | 1990-08-03 | 1992-02-26 | Kirton Engineering Limited | Water treatment |
| CN110709426A (en) * | 2017-06-07 | 2020-01-17 | 米其林集团总公司 | Process for purifying natural rubber by high pressure filtration of wet coagulum of natural rubber |
| CN110709426B (en) * | 2017-06-07 | 2021-12-31 | 米其林集团总公司 | Process for purifying natural rubber by high pressure filtration of wet coagulum of natural rubber |
| CN109369826A (en) * | 2018-09-21 | 2019-02-22 | 昌江金达乳胶制品有限公司 | Production method of ammonia-free natural concentrated latex |
| CN109369826B (en) * | 2018-09-21 | 2020-08-21 | 昌江金达乳胶制品有限公司 | Production method of ammonia-free natural concentrated latex |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |