CN101948703A

CN101948703A - Liquid dye for gasoline and preparation method thereof

Info

Publication number: CN101948703A
Application number: CN2010102495000A
Authority: CN
Inventors: 詹忆源
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-08-10
Filing date: 2010-08-10
Publication date: 2011-01-19

Abstract

The invention provides a liquid dye for gasoline and a preparation method thereof. The liquid dye comprises the following components of: 25-35 percent of solvent type dye, 40-60 percent of varsol, 3-7 percent of auxiliary, 9-13 percent of antifreeze agent, and 3-5 percent of surfactant. The preparation method comprises the following steps of: adding the varsol, the auxiliary, the antifreeze agent and the surfactant into a stirring pot according to proportion, uniformly stirring, adding the required solvent type dye according to proportion, continuing stirring for 2 hours at normal temperature under normal pressure, filtering after the components are fully dissolved, discharging, and finally canning. A special solvent dye is adopted for the dye so as to ensure that the solubility of the solvent can reach 40-60 percent in the varsol, after the dye is added, the color is more attractive, the management is more convenient, the dissolution of the dye is uniform, and the residue and heavy metal contents are quite low, and after the dye is added into the gasoline, the original purity of the gasoline cannot be reduced, therefore, not only the quality of the original gasoline is guaranteed, the explosionproof property of a vehicle is not reduced and no damage is generated to a cylinder of a vehicle, but also the vehicle exhaust gas emitted are clean and has no pollution.

Description

Gasoline liquid dye and preparation method thereof

Technical field

The present invention relates to a kind of gasoline with liquid dye and preparation method thereof, belong to technical field of dye.

Background technology

At present, the gasoline of being on sale throughout on the domestic market is colourless gasoline, and the foreign market is because some special requirements, have and bring into use coloured gasoline, the purposes, grade quality, control purpose of different oil products and same specification oil product etc. are distinguished in countries and regions such as the picture U.S., Europe, Hong Kong with distinct colors, make it that obvious characteristics be arranged, as: because the reason of the reason of tax revenue and safety, aviation spirit is exactly coloured.

Along with development of times, coloured epoch also will be moved towards in the gasoline market of China, make gasoline painted, at first will solve the dyestuff of gasoline dyeing usefulness, and at present, the production and sales of domestic gasoline dedicated dye are still blank.Pure dye is the crystalloid particle, if with it as gasoline dyeing dyestuff, so just need higher solvability, otherwise can be because particle is insoluble, lack of homogeneity after factor such as the residue heavy metal content is many directly adds gasoline, will cause the reduction of the original purity of gasoline, quality variation will certainly badly influence the cylinder of automobile and can not use.

Will produce a kind of shortcoming that should overcome above-mentioned dyestuff so, satisfy the dyestuff of gasoline to the automobile requirement again, the mixing liquid of dyestuff more has superiority than pure dye.Dyestuff being made liquid, promptly need a kind of gasoline dedicated liquid dyestuff to overcome the deficiency of common dye, possess and can make gasoline painted, can guarantee the quality that gasoline is original again and the automobile cylinder is without prejudice, is exactly the problem that this patent will solve.

Therefore, wanting to produce ideal gasoline dedicated liquid dyestuff, will be the great technical task that is worth research.

Summary of the invention

The objective of the invention is to solve above-mentioned technical problem, a kind of gasoline liquid dye and preparation method thereof are provided.

Purpose of the present invention is achieved through the following technical solutions:

The gasoline liquid dye is characterized in that: the composition of this dyestuff and weight percent are:

Solvent dye 25～35%;

Varsol 40%～60%;

Auxiliary agent 3%～7%;

Frostproofer 9%～13%;

Tensio-active agent 3%～5%.

Further, above-described gasoline liquid dye, wherein said solvent dye be in C.I. solvent yellow 175, C.I. solvent red 164, C.I. solvent blue 98 dyestuffs any one.

Further, above-described gasoline liquid dye, wherein said varsol are dimethylbenzene.

Further, above-described gasoline liquid dye, wherein said auxiliary agent are dipropylene glycol-methyl ether.

Further, above-described gasoline liquid dye, wherein said frostproofer are ethylbenzene.

Further, above-described gasoline liquid dye, wherein said tensio-active agent are Soxylat A 25-7.

The above gasoline preparation method of liquid dye, wherein earlier dimethylbenzene, dipropylene glycol-methyl ether, ethylbenzene, Soxylat A 25-7 are added in the agitator kettle by proportioning and stir, the dyestuff that adds required color more in proportion, continue to stir at normal temperatures and pressures treated that it fully dissolved in two hours after, filter, discharging, canned at last.

Beneficial effect of the present invention is mainly reflected in: can make gasoline painted with liquid dye, according to obtaining coloured gasoline after the adding of color needs, not only color is attractive in appearance but also more convenient management, dissolving evenly, residue, heavy metal content are extremely low, can not cause the original purity drop of gasoline after being added into gasoline, not only guaranteed original quality of gasoline, do not reduce the knock rating of automobile, can be not impaired to the cylinder of automobile, and to the automobile emission cleanliness without any pollution.

Embodiment

The gasoline preparation prescription of liquid dye: solvent dye 25～35%, varsol 40%～60%, auxiliary agent 3%～7%, frostproofer 9%～13%, tensio-active agent 3%～5%.Solvent dye is selected in C.I. solvent yellow 175, C.I. solvent red 164, C.I. solvent blue 98 dyestuffs any one for use, and varsol is a dimethylbenzene, and auxiliary agent is dipropylene glycol-methyl ether, and frostproofer is an ethylbenzene, and tensio-active agent is a Soxylat A 25-7.

Gasoline is with the preparation method of liquid dye: dimethylbenzene, dipropylene glycol-methyl ether, ethylbenzene, Soxylat A 25-7 are added in the agitator kettle by proportioning stir earlier, the dyestuff that adds required color more in proportion, continue to stir at normal temperatures and pressures treated that it fully dissolved in two hours after, filter discharging, canned at last.

Embodiment 1:

Earlier 60kg dimethylbenzene, 3kg dipropylene glycol-methyl ether, 9kg ethylbenzene, 3kg Soxylat A 25-7 are added in the agitator kettle by proportioning and stir, add 25kgC.I. solvent red 164 dyestuffs again, continue to stir at normal temperatures and pressures treated that it fully dissolved in two hours after, filter discharging, canned at last.

Embodiment 2:

Earlier 50kg dimethylbenzene, 5kg dipropylene glycol-methyl ether, 11kg ethylbenzene, 4kg Soxylat A 25-7 are added in the agitator kettle by proportioning and stir, add 30kg C.I. solvent red 164 dyestuffs again, continue to stir at normal temperatures and pressures treated that it fully dissolved in two hours after, filter discharging, canned at last.

Embodiment 3:

Earlier 40kg dimethylbenzene, 7kg dipropylene glycol-methyl ether, 13kg ethylbenzene, 5kg Soxylat A 25-7 are added in the agitator kettle by proportioning and stir, add 35kg C.I. solvent red 164 dyestuffs again, continue to stir at normal temperatures and pressures treated that it fully dissolved in two hours after, filter discharging, canned at last

Below only provide three embodiments of red gasoline, and yellow/blue gasoline is basic identical with its implementation condition of liquid dye, no longer repeats with liquid dye.

After testing, the gasoline liquid dye that adopt technical solution of the present invention to obtain, its main performance index sees Table 1:

Table 1

Project	Red	Yellow	Blue
				Intensity %	100	100	100
Solvability in gasoline	Miscible	Miscible	Miscible

Residue content in the dimethylbenzene	≤0.2％	≤0.2％	≤0.2％
				Proportion	0.96～0.98	0.96～0.98	0.92～0.97
Maximum absorption wavelength (nm)	516～532	400～420	646～649

Owing to make the key of liquid dye and be and select which type of dyestuff is colorant as liquid dye for use, secondly be to select which type of solvent and additive for use, dyestuff can be dissolved in the solvent well, can mix with gasoline and quality of gasoline is not had influence.

The present invention adopts specific solvent dye to make the solubleness of this dyestuff in varsol reach 40～60%, with respect to general dyestuff in the solubleness in the varsol below 5%, its solubleness improves greatly.

Secondly, gasoline of the present invention is even with the liquid dye dissolving, and residue, heavy metal content are extremely low.

And, added dyestuff of the present invention after gasoline do not change initial quality, can not reduce the knock rating of automobile, this dyestuff is little to cylinder infringement, the exhaust gas emission cleanliness without any pollution.

The present invention still has multiple concrete embodiment, and all employings are equal to replacement or equivalent transformation and all technical schemes of forming, all drop within the scope of protection of present invention.

Claims

1. gasoline liquid dye, it is characterized in that: the composition of this dyestuff and weight percent are:

Solvent dye 25～35%;

Varsol 40%～60%;

Auxiliary agent 3%～7%;

Frostproofer 9%～13%;

Tensio-active agent 3%～5%.

2. gasoline liquid dye according to claim 1 is characterized in that: described solvent dye be in C.I. solvent yellow 175, C.I. solvent red 164, C.I. solvent blue 98 dyestuffs any one.

3. gasoline liquid dye according to claim 1 is characterized in that: described varsol is a dimethylbenzene.

4. gasoline liquid dye according to claim 1 is characterized in that: described auxiliary agent is dipropylene glycol-methyl ether.

5. gasoline liquid dye according to claim 1 is characterized in that: described frostproofer is an ethylbenzene.

6. gasoline liquid dye according to claim 1 is characterized in that: described tensio-active agent is a Soxylat A 25-7.

7. claim 1 gasoline is with the preparation method of liquid dye, it is characterized in that: stir first varsol, auxiliary agent, frostproofer, tensio-active agent are added in the agitator kettle by proportioning, add required solvent dye more in proportion, continue to stir at normal temperatures and pressures treated that it fully dissolved in two hours after, filter, discharging, canned at last.