BE557029A - - Google Patents

Info

Publication number
BE557029A
BE557029A BE557029DA BE557029A BE 557029 A BE557029 A BE 557029A BE 557029D A BE557029D A BE 557029DA BE 557029 A BE557029 A BE 557029A
Authority
BE
Belgium
Prior art keywords
emi
catalyst
carbon atoms
titanium tetrachloride
hydrocarbon
Prior art date
Application number
Other languages
French (fr)
Priority date (The priority date 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 date listed.)
Publication of BE557029A publication Critical patent/BE557029A/fr

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F110/00Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F110/04Monomers containing three or four carbon atoms
    • C08F110/06Propene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Description

       

   <EMI ID=1.1> 

  
de polypropylènes au moyen d'un catalyseur constitué par un produit de réaction du tétrachlorure de titane avec un ou plusieurs dérivés organiques d'un métal alcalin et d'un hydrocarbure de 2 à 5 atomes de carbone.

  
Il a été maintenant trouvé que ce catalyseur peut Être obtenu à partir d'un hydrocarbure contenant de 6 à 8 atomes de carbone.

  
Ce catalyseur se prépare suivant la méthode décrite

  
 <EMI ID=2.1> 

  
Avec'le catalyseur de l'invention, on peut polymériser du polypropylène ou des mélanges gazeux ou liquides contenant du propylène dilué éventuellement par des gaz inertes. 

  
Les produits obtenus ont les mêmes usages et sensiblement les mêmes propriétés que ceux obtenus avec les catalyseurs

  
 <EMI ID=3.1> 

  
Exemple.

  
On prépare du 2-éthyl-hexylsodium en faisant réagir

  
 <EMI ID=4.1> 

  
ensuite le catalyseur de polymérisation en prenant une solution de 2 g de tétrachlorure de titane dans 150 cm3 de pentane sec.

  
On y ajoute du 2-éthyl-hexylsodium en quantité correspondant à

  
1 g de sodium métallique en suspension dans du pentane sec.

  
Aussitôt que ce mélange est effectué, le tube de fer qui le contient est fermé et raccordé à une bonbonne de propylène.

  
On maintient une pression de 10 atmosphères et une température de 2090. Après 20 heures, on purge le tube par un courant d'azote. La masse réactionnelle est lavée à l'éthanol acidifié par de l'acide chlorhydrique et ensuite à l'eau. On obtient après séchage sous vide 15 g d'un polymère solide de poids molécu-

  
 <EMI ID=5.1> 

  
linité moyenne Cr = 45%. 

  
Ces constantes sont déterminées comme il est indiqué

  
 <EMI ID=6.1> 

  
10 g de polymères sont extraits à chaud par de l'éther diéthylique. La fraction soluble recueillie pèse 3,4 g. Le poids moléculaire est 'de 32.000,. Le point de fusion n'est pas déterminé à cause de l'état amorphe du produit.

  
 <EMI ID=7.1> 

  
cristallinité Or = 23%.

  
Il est resté finalement 5,8 g de résidu de poids molé-

  
 <EMI ID=8.1> 



   <EMI ID = 1.1>

  
polypropylenes by means of a catalyst consisting of a reaction product of titanium tetrachloride with one or more organic derivatives of an alkali metal and of a hydrocarbon of 2 to 5 carbon atoms.

  
It has now been found that this catalyst can be obtained from a hydrocarbon containing 6 to 8 carbon atoms.

  
This catalyst is prepared according to the method described

  
 <EMI ID = 2.1>

  
With the catalyst of the invention, it is possible to polymerize polypropylene or gas or liquid mixtures containing propylene optionally diluted with inert gases.

  
The products obtained have the same uses and substantially the same properties as those obtained with the catalysts

  
 <EMI ID = 3.1>

  
Example.

  
2-ethyl-hexylsodium is prepared by reacting

  
 <EMI ID = 4.1>

  
then the polymerization catalyst by taking a solution of 2 g of titanium tetrachloride in 150 cm3 of dry pentane.

  
2-ethyl-hexylsodium is added to it in an amount corresponding to

  
1 g of metallic sodium suspended in dry pentane.

  
As soon as this mixture is carried out, the iron tube which contains it is closed and connected to a propylene cylinder.

  
A pressure of 10 atmospheres and a temperature of 2090 are maintained. After 20 hours, the tube is purged with a stream of nitrogen. The reaction mass is washed with ethanol acidified with hydrochloric acid and then with water. 15 g of a solid polymer of molecular weight are obtained after drying under vacuum.

  
 <EMI ID = 5.1>

  
average linearity Cr = 45%.

  
These constants are determined as indicated

  
 <EMI ID = 6.1>

  
10 g of polymers are extracted hot with diethyl ether. The soluble fraction collected weighs 3.4 g. The molecular weight is 32,000. The melting point is not determined due to the amorphous state of the product.

  
 <EMI ID = 7.1>

  
Gold crystallinity = 23%.

  
In the end, 5.8 g of residue of molecular weight remained.

  
 <EMI ID = 8.1>


    

Claims (1)

R é s u m é <EMI ID=9.1> Summary <EMI ID = 9.1> par un produit de réaction du tétrachlorure de titane avec un ou plusieurs dérivés organiques d'un métal alcalin et d'un hydrocarbure de 6 à 8 atomes de carbone. by a reaction product of titanium tetrachloride with one or more organic derivatives of an alkali metal and of a hydrocarbon of 6 to 8 carbon atoms. 29 A titre de produits industriels nouveaux, les catalyseurs 29 As new industrial products, catalysts <EMI ID=10.1> <EMI ID = 10.1>
BE557029D 1956-06-08 BE557029A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE362232X 1956-06-08
BE270457X 1957-04-27

Publications (1)

Publication Number Publication Date
BE557029A true BE557029A (en)

Family

ID=25661935

Family Applications (1)

Application Number Title Priority Date Filing Date
BE557029D BE557029A (en) 1956-06-08

Country Status (3)

Country Link
BE (1) BE557029A (en)
CH (1) CH362232A (en)
FR (1) FR1182300A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009127559A1 (en) * 2008-04-14 2009-10-22 Basf Se Soluble sodium alkyls, process for their preparation, and their use as initiators

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009127559A1 (en) * 2008-04-14 2009-10-22 Basf Se Soluble sodium alkyls, process for their preparation, and their use as initiators

Also Published As

Publication number Publication date
FR1182300A (en) 1959-06-24
CH362232A (en) 1962-05-31

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