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Preparation method of modified biological tar asphalt

A technology of modified asphalt and production method, which is applied in the direction of building structure, building components, building insulation materials, etc., can solve the problems of polluted soil and water sources, agricultural ecological environment hazards, etc., and achieve the effect of improving economic benefits and promoting development

Inactive Publication Date: 2012-06-06
周仁福 +2
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Problems solved by technology

[0006] The main purpose of the present invention is to overcome the fact that a large amount of waste water containing biological tar and wood acetic acid is discharged into the farmland during the utilization of the existing agricultural waste charcoal gasification technology, which seriously pollutes the soil and water sources and causes harm to the agricultural ecological environment, and provides A method for making bio-tar-modified asphalt by using bio-tar, the technical problem to be solved is to make the impurity produced in the carbon gasification technology of agricultural waste--bio-tar be effectively utilized

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  • Preparation method of modified biological tar asphalt
  • Preparation method of modified biological tar asphalt

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[0021] For further elaborating the technical means and effect that the present invention takes for reaching the intended purpose of the invention, below in conjunction with accompanying drawing and preferred embodiment, to the preparation method of the bio-tar modified asphalt that proposes according to the present invention its specific implementation, feature and effect Its effect is described in detail below.

[0022] see figure 1 Shown, the preparation method of the biotar modified asphalt of preferred embodiment of the present invention, comprises the following steps:

[0023] A preparation method of biotar modified asphalt, which comprises the following steps:

[0024] Step 1, remove the fraction below 260°C of bio-tar by heating, and collect its residue - bio-asphalt;

[0025] Step 2. Pour the bio-asphalt into a container with a stirrer to keep the temperature of the liquid bio-asphalt within the range of 90-110°C;

[0026] Step 3, adding neoprene rubber latex asphal...

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Abstract

The invention relates to an agricultural waste comprehensive utilization technology and specially, relates to a preparation method of modified biological tar asphalt. The preparation method comprises the following steps of 1, a biological asphalt preparation process comprising removing a fraction having a temperature below 220 DEG C of biological tar by normal pressure distillation and collecting a residue, wherein the residue is biological asphalt, 2, a heating process comprising heating the residue so that the residue becomes liquid, and 3, a modifier addition process comprising adding 1 to 3% of a chloroprene rubber latex asphalt modifier into the liquid obtained by the step 2 according to a certain ratio, and heating with uniform stirring to obtain the modified biological tar asphalt. The preparation method realizes effective utilization of biological tar, solves the problems of biological tar secondary pollution in agricultural waste carbon gasification technology utilization, changes waste into valuables, and improves the economic benefit of the agricultural waste carbon gasification technology utilization.

Description

technical field [0001] The invention relates to a technology for comprehensive utilization of agricultural waste, in particular to a production method for converting bio-tar produced in the process of comprehensive utilization and conversion of agricultural waste into bio-tar modified asphalt Background technique [0002] Bio-tar is an important chemical raw material, its quality is higher than that of coal tar, and its composition is complex. The content of each component of bio-tar obtained from different raw materials is different, which contains about 5-6% of hydrocarbons, 2-3% of alcohols, 40-60 creosote and a small amount of aldehydes exist in a liquid state at temperatures below 200°C, and pyrolyzes at temperatures above 200°C to form small molecular gases. Among the distilled fractions of biotar collected at atmospheric temperature, the sour water fraction is below 110°C, the light oil fraction is at 110-190°C, the creosote fraction is above 190°C, and there are resi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L11/02
Inventor 周仁福周强王韵涵
Owner 周仁福
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