BE366748A - - Google Patents
Info
- Publication number
- BE366748A BE366748A BE366748DA BE366748A BE 366748 A BE366748 A BE 366748A BE 366748D A BE366748D A BE 366748DA BE 366748 A BE366748 A BE 366748A
- Authority
- BE
- Belgium
- Prior art keywords
- sodium
- hydrocarbons
- weight
- series
- rubber
- Prior art date
Links
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 9
- 229910052708 sodium Inorganic materials 0.000 claims description 9
- 239000011734 sodium Substances 0.000 claims description 9
- 229930195733 hydrocarbon Natural products 0.000 claims description 6
- 150000002430 hydrocarbons Chemical class 0.000 claims description 6
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical class C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 5
- 239000003085 diluting agent Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 3
- 239000008240 homogeneous mixture Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 2
- 150000001993 dienes Chemical class 0.000 claims 1
- 238000006116 polymerization reaction Methods 0.000 claims 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 239000008262 pumice Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 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
- C08F36/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
- C08F36/02—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
- C08F36/04—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
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)
Description
<Desc/Clms Page number 1>
EMI1.1
"procéda se polym6risatiqn des hydro-carbures de la srie du butadiène "0
EMI1.2
on met que 1 on petit polymériser des hydrocarbures de la série du butaaîùno à 10aide du sodium, pour former ainsi des substances de la nature du caoutchouc 0r, la demanderesse a fait la constatation surprenante que 1"u%iliea%ion de la poudre de sodiumr répartie à?une façon fine
EMI1.3
et homogène dans un diluant solide, tel que par exemple un sel métalliques faoilite considérablement la réaction et que
EMI1.4
les proclu:Lte poleêrie6s très uniformes ainsi obtenus consti- tuent mU caoutchouc de haute p:aeu1'o
<Desc/Clms Page number 2>
La quantitéde sodium à/utiliser est très petite, La réaction est effectuée de préférence dans un récipient fixe sous pression.
Il est peu avantageux d'augementer la tempéra- ture au-dessus de 70 C La température optimum et comprise entre 35 C et 45 C La quantité de sodium métallique à utili- ser peut varier dans de larges limites; de préférence'on uti- lise environ 0,3 à 1,5 pour cent du poids de l'hydro-carbure utilisé. On peut aussi modifier largement la concentration du sodium métallique relativement au diluant solide, par exemple entre environ 1/40 et 1/80 du poids du diluant*,.
EXEMPLE.-
On traite 1,5 parties en poids de sodium sous forme de fil ou de ruban et 60 parties en poids de chlorure de sodium sec dans un broyeur à boulets dans une atmosphère'd'azote, jusqu'à, ce qu'on obtienne un mélange homogène finement 1)ulve- riseOn chauffe ce mélange à une température comprise entre 35 Cet 40 C. dans un récipient sous pression avec 240-270 par- ties en poids de butadiène, jusqu'à ce que ce dernier ait dis- paru, Le produit est traité ultérieurement do manière à sépa- rer le caoutchouc obtenu, de la masse seine oontenant du so- dium, ce qui est une opération facile:
pour éliminer le sodium qui pourrait adhérer au caoutchouc on peut traiter ce dernier par l'alcool, puis pas l'eau. on peut aussi effectuer la réaction la température du laboratoire, mais elle dure alors relativement plus longtemps.
On peut aussi remplacer le chlorure de sodium par le chlorure de potassium,, par le sulfate de sodium anhydre ou par de la poudre de pierre-ponce sèche, formant diluant pour le sodium.
Dans ce cas, la méthode opératoire est la même que celle décrite dans l'exemple précèdent*
<Desc / Clms Page number 1>
EMI1.1
"proceeded to polymerize hydrocarbons of the butadiene series" 0
EMI1.2
it is put that one small polymerize hydrocarbons of the butaaino series with 10aide of sodium, to thus form substances of the nature of rubber 0r, the Applicant has made the surprising observation that 1 "u% iliea% ion of the powder of sodiumr distributed to? a fine way
EMI1.3
and homogeneous in a solid diluent, such as for example a metal salt considerably facilitates the reaction and that
EMI1.4
the very uniform proclu: lte polêrie6s thus obtained constitute mU rubber of high p: aeu1'o
<Desc / Clms Page number 2>
The amount of sodium to be used is very small. The reaction is preferably carried out in a stationary pressure vessel.
It is not very advantageous to increase the temperature above 70 ° C. The optimum temperature is between 35 ° C. and 45 ° C. The quantity of metallic sodium to be used can vary within wide limits; preferably about 0.3 to 1.5 percent by weight of the hydrocarbon used is used. The concentration of metallic sodium relative to the solid diluent can also be varied widely, for example between approximately 1/40 and 1/80 of the weight of the diluent * ,.
EXAMPLE.-
1.5 parts by weight of sodium as a wire or ribbon and 60 parts by weight of dry sodium chloride are treated in a ball mill in a nitrogen atmosphere, until a mixture is obtained. homogeneous mixture finely 1) ulve- This mixture is heated to a temperature between 35 and 40 C. in a pressure vessel with 240-270 parts by weight of butadiene, until the latter has disappeared, The product is further processed in such a way as to separate the rubber obtained from the bulk containing sodium, which is an easy operation:
to eliminate the sodium which could adhere to the rubber, the latter can be treated with alcohol, then not with water. the reaction can also be carried out at laboratory temperature, but it then lasts relatively longer.
The sodium chloride can also be replaced by potassium chloride, by anhydrous sodium sulfate or by dry pumice powder, forming a diluent for the sodium.
In this case, the operating method is the same as that described in the previous example *
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEJ0036686 | 1929-01-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE366748A true BE366748A (en) | 1930-02-28 |
Family
ID=38824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE366748D BE366748A (en) | 1929-01-09 | 1930-01-07 |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE366748A (en) |
-
1930
- 1930-01-07 BE BE366748D patent/BE366748A/fr unknown
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