Building asphalt and preparing method thereof

A technology of building asphalt and deoiled asphalt, which is applied in the direction of construction, building components, building structures, etc., can solve the problems of low final product yield, small margin of softening point index, and affecting the ductility of building asphalt, and achieve production The effect of low cost, low requirements, and small equipment corrosion

Inactive Publication Date: 2017-01-11
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still some deficiencies in this method. First, the reaction conditions are harsh, and superheated steam stripping is required. The increase in the amount of steam will seriously affect the ductility of building asphalt, and the degree of stripping is greatly affected by the raw materials; The softening point index margin of the construction asphalt prepared by the method is small, and the highest yield of the final product is low

Method used

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  • Building asphalt and preparing method thereof
  • Building asphalt and preparing method thereof
  • Building asphalt and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] In this embodiment, the building asphalt is prepared by chemical condensation reaction using deoiled asphalt and dewaxed oil extracted from four-line furfural reduction. The preparation method includes the following steps:

[0025] (1) Get the reaction raw materials according to the mass percentage: deoiled asphalt (2) 90%, extract 10% of the dewaxed oil by subtracting four-line furfural, add respectively in the three-necked flask with stirring device, after stirring and mixing evenly, stir while stirring Add the polyphosphoric acid of consumption as in table 1, stir and mix evenly;

[0026] (2) Condensation reaction was carried out at normal pressure and temperature of 140° C. for 40 minutes. The property analysis of the obtained product is shown in Table 1.

[0027] Analysis of building asphalt properties in the present embodiment of table 1

[0028]

[0029] It can be seen from Table 1 that the construction asphalt prepared in this example complies with the No. 3...

Embodiment 2

[0031] In this embodiment, the building asphalt is prepared by chemical condensation reaction using deoiled asphalt and dewaxed oil extracted from four-line furfural reduction. The preparation method includes the following steps:

[0032] (1) Get the reaction raw materials according to the mass percentage: deoiled asphalt (2) 85%, extract 15% of the dewaxed oil by subtracting four-line furfural, add respectively in the three-necked flask with stirring device, after stirring and mixing evenly, stir while stirring Add the polyphosphoric acid of consumption as in table 2, stir and mix evenly;

[0033] (2) Condensation reaction was carried out at normal pressure and temperature of 140° C. for 40 minutes. The property analysis of the obtained product is shown in Table 2.

[0034] Analysis of building asphalt properties in the present embodiment of table 2

[0035]

[0036] It can be seen from Table 2 that the construction asphalt prepared in this example complies with the No. 3...

Embodiment 3

[0038] In this embodiment, the building asphalt is prepared by chemical condensation reaction using deoiled asphalt and dewaxed oil extracted from four-line furfural reduction. The preparation method includes the following steps:

[0039] (1) Get the reaction raw materials according to the mass percentage: deoiled asphalt (2) 80%, extract 20% of the dewaxed oil by subtracting four-line furfural, add respectively in the three-necked flask with stirring device, after stirring and mixing evenly, stir while stirring Add the polyphosphoric acid of consumption as in table 3, stir and mix evenly;

[0040] (2) Condensation reaction was carried out at normal pressure and temperature of 140° C. for 40 minutes. The property analysis of the obtained product is shown in Table 3.

[0041] Analysis of building asphalt properties in the present embodiment of table 3

[0042]

[0043] It can be seen from Table 3 that the construction asphalt prepared in this example complies with the No. 3...

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Abstract

The invention discloses a building asphalt and a preparing method thereof and belongs to the technical field of petroleum processing. Deoiled asphalt and dewaxed oil extracted from furfural through vacuum distillation serve as reaction raw materials, a condensation reaction is carried out for 20-90 min at 130-170 DEG C at the normal pressure with the existence of a chemical condensation agent, and the building asphalt is prepared. The high-low temperature performance of the obtained product meets the national standard requirement; besides, the process is simple, the production cost is low, environment friendliness is achieved, and the problems that an existing oxidation method is complex in process, high in cost, likely to cause pollution to the environment and the like are solved.

Description

technical field [0001] The invention relates to building asphalt and a preparation method of the building asphalt, which belongs to the technical field of petroleum processing. Background technique [0002] Construction asphalt is the most used asphalt category except road asphalt. It has the characteristics of small penetration, high softening point, good adhesion and good water resistance. It is mainly used to manufacture waterproof membranes and roofing projects or underground waterproof and thermal insulation coatings. layer. Construction asphalt products are divided into three grades of No. 10, No. 30 and No. 40 according to the penetration degree, among which No. 10 construction asphalt and No. 30 construction asphalt are the most used varieties. [0003] Oxidation method is one of the commonly used methods to produce construction asphalt. For example, in the patent of Publication No. CN 1093394A, solvent extraction is first performed on the vacuum residue, and then ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L91/00C10C3/02
CPCC08L95/00C10C3/02
Inventor 潘金亮王伟韩德奇王建玲张晓霞鲁佳丁晓睿
Owner CHINA PETROLEUM & CHEM CORP
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