EP3322780B1 - Inhibiteurs de corrosion pour carburants - Google Patents

Inhibiteurs de corrosion pour carburants Download PDF

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EP3322780B1
EP3322780B1 EP16736891.9A EP16736891A EP3322780B1 EP 3322780 B1 EP3322780 B1 EP 3322780B1 EP 16736891 A EP16736891 A EP 16736891A EP 3322780 B1 EP3322780 B1 EP 3322780B1
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acid
use according
esters
carbon atoms
olefin
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German (de)
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EP3322780A1 (fr
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Jochen Mezger
Maxim Peretolchin
Ivette Garcia Castro
Klaus Muehlbach
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BASF SE
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BASF SE
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Claims (15)

  1. Utilisation de copolymères, pouvant être obtenus par :
    - lors d'une première étape de réaction (I), la copolymérisation de :
    (A) au moins un acide mono- ou dicarboxylique éthyléniquement insaturé ou ses dérivés, choisis dans le groupe constitué par :
    - les anhydrides sous forme monomère ou polymère,
    - les esters mono- ou dialkyliques, et
    - les esters mixtes,
    (B) au moins une α-oléfine contenant au moins 12 à 30, inclus, atomes de carbone,
    (C) éventuellement au moins une oléfine aliphatique ou cycloaliphatique supplémentaire, comprenant au moins 4 atomes de carbone, qui est différente de (B), et
    (D) éventuellement un ou plusieurs monomères copolymérisables supplémentaires, qui sont différents des monomères (A), (B) et (C), choisis dans le groupe constitué par :
    (Da) les esters de vinyle,
    (Db) les éthers de vinyle,
    (Dc) les esters de l'acide (méth)acrylique d'alcools, qui comprennent au moins 5 atomes de carbone,
    (Dd) les alcools allyliques ou leurs éthers,
    (De) les composés de N-vinyle, choisis dans le groupe constitué par les composés de vinyle d'hétérocycles contenant au moins un atome d'azote, les N-vinylamides ou les N-vinyllactames,
    (Df) les composés aromatiques éthyléniquement insaturés,
    (Dg) les nitriles α,β-éthyléniquement insaturés,
    (Dh) les amides de l'acide (méth)acrylique et
    (Di) les allylamines,
    suivie par
    - lors d'une deuxième étape de réaction optionnelle (II), l'hydrolyse partielle des fonctionnalités anhydride contenues dans le copolymère obtenu en (I) et/ou la saponification partielle des fonctionnalités ester d'acide carboxylique contenues dans le copolymère obtenu en (I), à condition que plus de 90 % des fonctionnalités anhydride et ester d'acide carboxylique restent intactes après l'étape de réaction (II),
    en tant qu'inhibiteurs de corrosion dans des carburants qui présentent une teneur en métaux alcalins et/ou alcalino-terreux et/ou en zinc d'au moins 0,1 ppm en poids.
  2. Utilisation selon la revendication 1, caractérisée en ce que les métaux alcalins et/ou alcalino-terreux et/ou le zinc sont choisis dans le groupe constitué par le sodium, le zinc, le magnésium et le calcium.
  3. Utilisation selon l'une quelconque des revendications précédentes, caractérisée en ce que le monomère (A) est choisi dans le groupe constitué par l'acide acrylique, l'acide méthacrylique, l'ester méthylique de l'acide acrylique, l'ester éthylique de l'acide acrylique, l'ester n-butylique de l'acide acrylique, l'ester méthylique de l'acide méthacrylique et l'anhydride de l'acide maléique, de préférence l'anhydride de l'acide maléique.
  4. Utilisation selon l'une quelconque des revendications précédentes, caractérisée en ce que le monomère (B) consiste en une α-oléfine contenant au moins 14 à 26, inclus, atomes de carbone.
  5. Utilisation selon l'une quelconque des revendications précédentes, caractérisée en ce que l'oléfine (C) consiste en un polymère de propène, de 1-butène, de 2-butène ou d'iso-butène comprenant plus de 30 atomes de carbone ou en des mélanges d'oléfines contenant un tel polymère, de préférence d'iso-butène ou des mélanges d'oléfines contenant un tel polymère, ayant un poids moléculaire moyen Mw dans la plage allant de 500 à 5 000 g/mol.
  6. Utilisation selon l'une quelconque des revendications précédentes, caractérisée en ce que le mélange de matières des oléfines (B) et (C) comprend au moins 12 atomes de carbone, moyenné sur leurs quantités de matières.
  7. Utilisation selon l'une quelconque des revendications précédentes, caractérisée en ce que le monomère (D) est choisi dans le groupe constitué par (Da), (Db), (Dc), (De) et (Df).
  8. Utilisation selon l'une quelconque des revendications précédentes, caractérisée en ce que le rapport molaire de (A)/((B) et (C)) (au total) est de 10:1 à 1:10.
  9. Utilisation selon la revendication 8, caractérisée en ce que le rapport molaire entre le monomère (B) et le monomère (C) est de 1:0,05 à 10.
  10. Utilisation selon la revendication 8 ou 9, caractérisée en ce que la proportion d'un ou de plusieurs des monomères (D), par rapport à la quantité des monomères (A), (B) et éventuellement (C) (au total) est de 5 à 200 % en moles.
  11. Utilisation selon l'une quelconque des revendications précédentes, caractérisée en ce que l'anhydride de l'acide maléique est utilisé en tant que composant (A) et l'étape de réaction optionnelle (II) n'est pas réalisée.
  12. Utilisation selon l'une quelconque des revendications 1 à 10, caractérisée en ce que l'anhydride de l'acide maléique est utilisé en tant que composant (A) et, à l'étape de réaction (II), plus de 90 % et jusqu'à 99,9 % des fonctionnalités anhydride restent intactes.
  13. Utilisation selon l'une quelconque des revendications précédentes, pour l'inhibition de la corrosion de surfaces en fer, en acier et/ou en métal non ferreux.
  14. Utilisation selon l'une quelconque des revendications 1 à 12 pour l'inhibition de la corrosion de cuivre et d'alliages contenant du cuivre.
  15. Utilisation selon l'une quelconque des revendications précédentes, caractérisée en ce que le carburant est un carburant diesel ou automobile.
EP16736891.9A 2015-07-16 2016-07-12 Inhibiteurs de corrosion pour carburants Active EP3322780B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP15177085 2015-07-16
PCT/EP2016/066466 WO2017009306A1 (fr) 2015-07-16 2016-07-12 Inhibiteurs de corrosion pour carburants et lubrifiants

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EP3322780A1 EP3322780A1 (fr) 2018-05-23
EP3322780B1 true EP3322780B1 (fr) 2019-09-18

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EP (1) EP3322780B1 (fr)
CN (1) CN107849478A (fr)
BR (1) BR112018000797A2 (fr)
ES (1) ES2762999T3 (fr)
RU (1) RU2018105762A (fr)
SG (1) SG11201800399TA (fr)
WO (1) WO2017009306A1 (fr)
ZA (1) ZA201800858B (fr)

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WO2017009305A1 (fr) 2015-07-16 2017-01-19 Basf Se Copolymères utilisés en tant qu'additifs pour carburants et lubrifiants
PT3481920T (pt) 2016-07-05 2021-11-10 Basf Se Utilização de inibidores de corrosão para combustíveis e lubrificantes
CN110088253B (zh) 2016-12-15 2022-03-18 巴斯夫欧洲公司 作为燃料添加剂的聚合物
RU2019122807A (ru) 2016-12-20 2021-01-22 Басф Се Применение смеси комплексного сложного эфира с монокарбоновой кислотой для уменьшения трения
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EP4247921A1 (fr) * 2020-11-20 2023-09-27 Basf Se Mélanges pour améliorer ou renforcer la séparation de l'eau de carburants

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SG11201800399TA (en) 2018-02-27
EP3322780A1 (fr) 2018-05-23
RU2018105762A3 (fr) 2019-10-16
CN107849478A (zh) 2018-03-27
RU2018105762A (ru) 2019-08-16
WO2017009306A1 (fr) 2017-01-19
ZA201800858B (en) 2019-06-26
ES2762999T3 (es) 2020-05-26
US20180201863A1 (en) 2018-07-19
BR112018000797A2 (pt) 2018-09-04

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