FR3109939B1 - Process for the preparation of a stabilized natural rubber - Google Patents
Process for the preparation of a stabilized natural rubber Download PDFInfo
- Publication number
- FR3109939B1 FR3109939B1 FR2004416A FR2004416A FR3109939B1 FR 3109939 B1 FR3109939 B1 FR 3109939B1 FR 2004416 A FR2004416 A FR 2004416A FR 2004416 A FR2004416 A FR 2004416A FR 3109939 B1 FR3109939 B1 FR 3109939B1
- Authority
- FR
- France
- Prior art keywords
- natural rubber
- equal
- barrel
- mixture
- screw
- 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.)
- Active
Links
- 244000043261 Hevea brasiliensis Species 0.000 title abstract 6
- 229920003052 natural elastomer Polymers 0.000 title abstract 6
- 229920001194 natural rubber Polymers 0.000 title abstract 6
- 238000000034 method Methods 0.000 title abstract 3
- 239000000203 mixture Substances 0.000 abstract 2
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000005265 energy consumption Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000003381 stabilizer 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
- C08C1/04—Purifying; Deproteinising
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
- C08C3/00—Treatment of coagulated rubber
- C08C3/02—Purification
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
L’invention concerne un procédé de traitement d’un caoutchouc naturel qui comprend l’introduction d’un mélange d’un coagulum humide de caoutchouc naturel et d’un stabilisant de viscosité dans une machine à vis sans fin équipée d’un fourreau, dans lequel tourne la vis, et d’une filière à trous en bout de vis, par une trémie d’alimentation équipant la machine à vis sans fin, la compression du mélange dans le fourreau à une température supérieure ou égale à 130°C et inférieure ou égale à 210°C, une détente éclair adiabatique à une pression différentielle supérieure ou égale à 40 bars est réalisée en sortie de filière. Le procédé offre un bon compromis industriel, puisqu’il permet à la fois de minimiser le durcissement du caoutchouc naturel au stockage et de réduire la consommation d’énergie et l’encombrement des dispositifs de fabrication de caoutchouc naturel dans les usines de « remilling » du caoutchouc naturel.The invention relates to a process for treating natural rubber which comprises introducing a mixture of a moist coagulum of natural rubber and a viscosity stabilizer into an auger machine equipped with a barrel, in which the screw rotates, and a die with holes at the end of the screw, by a feed hopper fitted to the worm screw machine, the compression of the mixture in the barrel at a temperature greater than or equal to 130° C. and less than or equal to 210° C., an adiabatic flash expansion at a differential pressure greater than or equal to 40 bars is carried out at the die outlet. The process offers a good industrial compromise, since it makes it possible both to minimize the hardening of natural rubber during storage and to reduce the energy consumption and the size of natural rubber manufacturing devices in "remilling" factories. natural rubber.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2004416A FR3109939B1 (en) | 2020-05-05 | 2020-05-05 | Process for the preparation of a stabilized natural rubber |
| PCT/FR2021/050745 WO2021224568A1 (en) | 2020-05-05 | 2021-04-29 | Method for preparing stabilized natural rubber |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2004416 | 2020-05-05 | ||
| FR2004416A FR3109939B1 (en) | 2020-05-05 | 2020-05-05 | Process for the preparation of a stabilized natural rubber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR3109939A1 FR3109939A1 (en) | 2021-11-12 |
| FR3109939B1 true FR3109939B1 (en) | 2022-04-29 |
Family
ID=71784239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR2004416A Active FR3109939B1 (en) | 2020-05-05 | 2020-05-05 | Process for the preparation of a stabilized natural rubber |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR3109939B1 (en) |
| WO (1) | WO2021224568A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3134533A1 (en) | 2022-04-15 | 2023-10-20 | Compagnie Generale Des Etablissements Michelin | Process for decontaminating natural rubber by filtration of a moist coagulum of natural rubber. |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4111584B2 (en) | 1998-04-13 | 2008-07-02 | 株式会社ブリヂストン | Manufacturing method of natural rubber |
| CN101348532A (en) * | 2008-09-11 | 2009-01-21 | 罗天韵 | Novel natural rubber production method |
| FR3022247B1 (en) | 2014-06-13 | 2018-01-19 | Compagnie Generale Des Etablissements Michelin | PROCESS FOR PREPARING NATURAL RUBBER |
| FR3034703B1 (en) | 2015-04-10 | 2017-03-24 | Michelin & Cie | REMOVAL OF CONTAMINANTS IN WET NATURAL RUBBER |
| FR3043678B1 (en) * | 2015-11-17 | 2018-01-05 | Compagnie Generale Des Etablissements Michelin | PROCESS FOR PREPARING STABILIZED NATURAL RUBBER |
| FR3051795B1 (en) * | 2016-05-31 | 2018-06-15 | Compagnie Generale Des Etablissements Michelin | PROCESS FOR DRYING NATURAL RUBBER |
| FR3067351B1 (en) | 2017-06-07 | 2020-10-23 | Michelin & Cie | PROCESS FOR DECONTAMINATION OF NATURAL RUBBER BY HIGH PRESSURE FILTRATION OF A WET COAGULUM OF NATURAL RUBBER |
| CN111372951A (en) | 2017-11-23 | 2020-07-03 | 米其林集团总公司 | Process for treating natural rubber |
| CN111386286B (en) * | 2017-11-23 | 2022-07-15 | 米其林集团总公司 | Process for treating natural rubber |
-
2020
- 2020-05-05 FR FR2004416A patent/FR3109939B1/en active Active
-
2021
- 2021-04-29 WO PCT/FR2021/050745 patent/WO2021224568A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021224568A1 (en) | 2021-11-11 |
| FR3109939A1 (en) | 2021-11-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PLFP | Fee payment |
Year of fee payment: 2 |
|
| PLSC | Publication of the preliminary search report |
Effective date: 20211112 |
|
| PLFP | Fee payment |
Year of fee payment: 3 |
|
| PLFP | Fee payment |
Year of fee payment: 4 |
|
| PLFP | Fee payment |
Year of fee payment: 5 |