阅读说明：本技术 方法和用途 (Method and purposes ) 是由 M.佩茨 K.勒曼凯斯 A.N.罗斯 于 2018-03-28 设计创作，主要内容包括：包含酯化合物作为添加剂的柴油燃料组合物,所述酯化合物是任选取代的多元羧酸或其酸酐和式ROH的醇的反应产物,其中R是任选取代的烃基。(Diesel fuel composition comprising ester compounds as additive, the ester compounds are the reaction products of the polybasic carboxylic acid optionally replaced or its acid anhydrides and the alcohol of formula ROH, and wherein R is the alkyl optionally replaced.)

1. including diesel fuel composition of the ester compounds as additive, the ester compounds are the polybasic carboxylic acids optionally replaced Or the reaction product of the alcohol of its acid anhydrides and formula ROH, wherein R is the alkyl optionally replaced.

2. the method for fighting the deposit in diesel engine, the method includes burning in the engine comprising optionally taking Diesel fuel composition of the reaction product of the alcohol of the polybasic carboxylic acid in generation or its acid anhydrides and formula ROH as additive, wherein R is to appoint Choose the alkylidene group in generation.

3. purposes of the ester compounds as the detergent additives in the diesel fuel composition in diesel engine；It is wherein described Ester compounds are the reaction products of the polybasic carboxylic acid optionally replaced or its acid anhydrides and the alcohol of formula ROH, and wherein R is the hydrocarbon optionally replaced Base.

4. according to the composition of any one of preceding claims, method or purposes, wherein the polybasic carboxylic acid optionally replaced or Its acid anhydrides is the succinic anhydride that the succinic acid that alkyl replaces or alkyl replace.

5. wherein R is with 6 to 36 carbon atoms, preferably according to the composition of any one of preceding claims, method or purposes The alkyl of 10 to 20 carbon atoms.

6. according to the composition of any one of preceding claims, method or purposes, wherein the polybasic carboxylic acid or its acid anhydrides include With 6 to 100 carbon atoms, the alkyl or alkenyl of preferably 6 to 50 carbon atoms optionally replaced.

7. according to the composition of any one of preceding claims, method or purposes, wherein the polybasic carboxylic acid optionally replaced or The alcohol of acid anhydrides and formula ROH that alkyl replaces is reacted with the ratio of 1.5:1 to 1:1.5.

8. according to the composition of any one of preceding claims, method or purposes, wherein the additive includes having formula (C1) Or the compound of (C2):

。

9. according to the composition of any one of preceding claims, method or purposes, wherein the additive include formula (A3) or (A4) reaction product of the alcohol of succinic acid or acid anhydrides and formula ROH:

Wherein R is the unsubstituted alkyl with 2 to 20 carbon atoms；And R¹It is the alkyl or alkenyl with 6 to 36 carbon atoms Or the polyisobutenyl of the number-average molecular weight with 200 to 1300.

10. according to the composition of any one of preceding claims, method or purposes, wherein the additive includes having C₂₀To C₂₄ The succinic acid or acid anhydrides of alkyl or alkenyl substituent group and the reaction product of the alcohol selected from butanol and 2-Ethylhexyl Alcohol.

11. according to the composition of any one of preceding claims, method or purposes, wherein the additive includes having formula (E) Compound:

。

12. according to the composition of any one of preceding claims, method or purposes, wherein the diesel engine is with high pressure The modern diesel engines of fuel system.

13. realizing " keeping cleaning " performance according to the method or purposes of any one of claim 2 to 12.

14. realizing " purification " performance according to the method or purposes of any one of claim 2 to 13.

15. according to the method or purposes of any one of claim 2 to 14, wherein the deposit is injector deposits.

16. method according to claim 15 or purposes, wherein the deposit is internal diesel injector deposit.

17. according to the composition of any one of preceding claims, method or purposes, wherein the diesel fuel composition includes few In 50 weight ppm sulphur.

18. according to the composition of any one of preceding claims, method or purposes, wherein the diesel fuel composition includes life Object diesel oil.

19. according to the composition of any one of preceding claims, method or purposes, wherein the diesel fuel composition includes one Kind or a variety of additional detergents, are selected from:

(i) quaternary ammonium salt additives；

(ii) product of the Mannich reaction between aldehyde, amine and the phenol optionally replaced；

(iii) reaction product of acylating agent and amine derived from carboxylic acid；

(iv) reaction product of acylating agent and hydrazine derived from carboxylic acid；

(v) pass through the salt for reacting formation of carboxylic acid and di-n-butyl amine or tri-n-butyl amine；

(vi) reaction product of alkyl replaces dicarboxylic acids or acid anhydrides and amine compounds or salt, the product include at least one ammonia Base triazole group；With

(vii) the polycyclic aromatic hydrocarbon detergent additives being substituted.

20. according to the composition of any one of preceding claims, method or purposes, wherein the diesel fuel composition includes two The mixture of kind or more ester additive.

21. realizing and changing selected from following one or more performance according to the method or purposes of any one of claim 2 to 20 Into:

The reduction of engine power loss；

The reduction of external diesel injector deposit；

The reduction of internal diesel injector deposit；

The improvement of fuel economy；

The reduction of fuel filter deposit；

The reduction of emission；With

The increase of service intervals phase.

22. method according to claim 21 or purposes, provide in the modern diesel engines with high-pressure fuel system Performance improvement and performance improvement is provided in conventional diesel.

23. providing according to the purposes of any one of claim 3 to 21 and being selected from lubrication benefit, corrosion inhibits and low temperature flow changes Into one or more additional benefits.

24. according to claim 1 or any one of 4 to 20 composition, further include selected from lubrication modifier, corrosion inhibiter and One or more additional additives of cold flow improver.

25. the ester additive limited in any one of preceding claims is used to reduce while retention property and improve selected from lubrication The purposes of the handling rate of one or more additional additives of agent, corrosion inhibiter and cold flow improver.

Embodiment 1

It is prepared for additive A 1 as follows, ester additive of the invention:

The mixture of alkene with 20 to 24 carbon atoms heats together with the maleic anhydride of 1.2 molar equivalents.Reaction is completed Afterwards, excessive maleic anhydride is removed by distillation.The acid anhydrides value for measuring substituted succinyl oxide product is 2.591 mmolg^-1。

Then this product heats together with the tetradecanol of 1 molar equivalent, and monitored and reacted by FTIR.

It is prepared for compound A2 to A9 by similar methods.

It is believed that reaction product includes following compounds:

Table 1

Compound	R1	HOR
			A1	C20-24	Tetradecanol
A2	C20-24	Butanol
			A3	C20-24	Octanol
A4	C20-24	2-Ethylhexyl Alcohol
			A5	C20-24	Hexanol
A6	C20-24	Cyclohexanol
			A7	C20-24	Benzylalcohol
A8	C20-24	Lotka-Volterra circle system
			A9	C20-24	2- ethyl-n-butyl alcohol
A10	C20-24	Isobutanol
			A11	C20-24	Butanol
A12	1000PIB	2-Ethylhexyl Alcohol
			A13	Dodecenyl succinic	Butanol
A14	1000PIB	Isopropanol