阅读说明：本技术 方法和用途 (Method and purposes ) 是由 M.佩茨 K.莱曼凯斯 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,所述酯化合物是式H-(OR)<Sub>n</Sub>-OH的多元醇和至少1.5摩尔当量的任选取代的多元羧酸或其酸酐的反应产物,其中R是任选取代的亚烷基且n是至少1。(Diesel fuel composition comprising ester compounds as additive, the ester compounds are formula H- (OR) n The polyalcohol of-OH and at least polybasic carboxylic acid of 1.5 molar equivalents optionally replaced or the reaction product of its acid anhydrides, wherein R is the alkylidene optionally replaced and n is at least 1.)

1. including diesel fuel composition of the ester compounds as additive, the ester compounds are formula H- (OR)_n- OH's is polynary The pure and mild at least polybasic carboxylic acid of 1.5 molar equivalents optionally replaced or the reaction product of its acid anhydrides, wherein R is the Asia optionally replaced Alkyl and n are at least 1.

2. the method for fighting the deposit in diesel engine includes formula H- the method includes burning in the engine (OR)_nThe polybasic carboxylic acid of the polyalcohol of-OH and at least 1.5 molar equivalents optionally replaced or the reaction product of its acid anhydrides are used as and add Add the diesel fuel composition of agent, wherein R is the alkylidene optionally replaced and n is at least 1.

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 formula H- (OR)_nThe polybasic carboxylic acids optionally replaced of the polyalcohol of-OH and at least 1.5 molar equivalents or its acid anhydrides Reaction product, wherein R is the alkylidene optionally replaced and n is at least 1.

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. according to the composition of any one of preceding claims, method or purposes, wherein each R is ethylidene or propylidene, preferably- CH₂CH₂Or-CH (CH₃)CH₂, more preferable-CH (CH₃)CH₂-；And n is 1-20.

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 H- (OR) n-OH that alkyl replaces is reacted with the ratio of 2.5:1 to 1.8:1.

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

With their isomers and mixture.

9. according to the composition of any one of preceding claims, method or purposes, wherein the additive includes formula H- (OR)_n-OH One or more formulas (A3) of pure and mild at least 1.5 molar equivalents or the succinic acid optionally replaced of (A4) or acid anhydrides reaction produce Object:

Wherein formula H- (OR)_nThe alcohol of-OH be selected from ethylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, propylene glycol, dipropylene glycol, Tripropylene glycol, four propylene glycol, trehalose, D-sorbite, glycerol, pentaerythrite, trimethylolpropane, 1,3- propylene glycol, 1,2- Butanediol, 1,3 butylene glycol, 1,4- butanediol, 1,6-HD, neopentyl glycol and the number-average molecular weight with 300-1200 Polyethylene glycol or polypropylene glycol；

Wherein each R¹It is the poly- isobutyl of the alkyl or alkenyl with 6 to 36 carbon atoms or the number-average molecular weight with 200 to 1300 Alkenyl.

10. according to the composition of any one of preceding claims, method or purposes, wherein the additive includes to be selected from 1,2- fourth Glycol, 1,3 butylene glycol, 1,4- butanediol, tripropylene glycol and the number-average molecular weight with 300-600 polypropylene glycol it is pure and mild At least 1.5 molar equivalents have C₂₀To C₂₄The succinic acid of alkyl or alkenyl substituent group or the reaction product of acid anhydrides.

11. according to the composition of any one of preceding claims, method or purposes, wherein the additive includes the change of formula (D) Close object:

。

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 22 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 polypropylene glycol with 425 number-average molecular weights of 0.5 molar equivalent, and pass through FTIR monitoring reaction.

It is prepared for the compound A2 to A17 being described in detail in table 1 by similar methods.By decanedioic acid rather than replace amber Acid is prepared for compound A18.

It is believed that additive A 1-A17 includes following compounds:

For additive A 20, group R in the above structure¹In one be C20-24 and the other is with 1000 Mn PIB。

It is believed that additive A 18 includes following compound:

It is believed that additive A 21 includes following compound:

Table 1

Compound	R1	H-(OR)n-OH
			A1	C20-24	Polypropylene glycol Mn425
A2	C20-24	Polypropylene glycol Mn725
			A3	C20-24	Propylene glycol
A4	C20-24	Polyethylene glycol Mn400
			A5	C20-24	Tetraethylene glycol
A6	C20-24	Tripropylene glycol
			A7	C20-24	Triethylene glycol
A8	C20-24	1,2- butanediol
			A9	C20-24	1,3 butylene glycol
A10	C20-24	1,4- butanediol
			A11	C20-24	Neopentyl glycol
A12	C20-24	1,6-HD
			A13	C20-24	Trimethylene (1,3- propylene glycol)
A14	C12	Trimethylene
			A15	C26-28	Polypropylene glycol Mn425
A16	C20-24	Dipropylene glycol
			A17	C20-24	Diethylene glycol
A18	Decanedioic acid	Polypropylene glycol Mn425
			A19	C20-24	Ethylene glycol
A20	C20-24 + 1000PIB	Poly- (propylene glycol) Mn425
			A21	Malonic acid	Poly- (propylene glycol) Mn425