Method for preparing lignocellulose for road

A wood fiber and road-use technology, applied in the field of road wood fiber preparation, can solve the problems of inconvenient addition of asphalt mixture, no public reports in literature, high sealing requirements, etc., and achieve low production cost, high oil absorption value, and preparation process conditions moderating effect

Inactive Publication Date: 2003-03-26
NORTHEASTERN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology improves upon existing methods by replacing or reusing certain common ingredients found within conventional bindings made up mostly of fossil fuel derived chemicals such as naphtha, coal tar pitches, crude oils, etc., while also reducing environmental concerns associated therewith. Natural and renewal lignocellulosic material provides stability when combined with various types of resins like bitumen, which helps improve its properties over current alternatives. Additionally, this new type of binder called LAPHENGAR (a special formulation) was developed that contains both hydroxypropyltrimethylammonium chloride salt and calcium oxide hydrate, making them more effective than previously known options alone. Overall, these technical improvements make the manufacturing processes simpler and less expensive compared to previous approaches.

Problems solved by technology

This patented technical problem addressed in this patents relates to finding ways to improve the properties of asphaltic materials such as rubble masseum sandwich structures without adding excessive amounts of expensive synthetic material like talc binder.

Method used

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  • Method for preparing lignocellulose for road

Examples

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example 2

[0023] Take 0.57Kg of coated kaolin and put it into a high-speed heating mixer, set the temperature at 35°C, start the machine for 5 minutes, add titanate coupling agent 311-7 into the mixing tank, the titanate coupling agent The addition amount is 17g, the machine is turned off after 50 minutes of modification, the coated kaolin after modification is taken out, and the activation index is determined to be 87%.

[0024]Discarded newsprint is selected as the fiber raw material, the cellulose content is 93.4%, and the ash content is 6.6%. Take newsprint 3.43Kg and soak in water for 1 hour, make it into fiber slurry with beating equipment, the slurry concentration is 4%, pour the fiber slurry into composite equipment, add the coated kaolin after modification in the composite equipment, Start the emulsifier, control the rotor speed to 4000r / min, and after 15 minutes, the reaction is over. Pour the reacted slurry into the filter bag for filtration. After filtering, the fibers are e...

example 3

[0026] Take 0.73Kg of coated kaolin and add it to a high-speed heating mixer, set the temperature at 40°C, start the machine for 5 minutes, add titanate coupling agent 311-7 into the mixing tank, the titanate coupling agent The addition amount is 29g, and the machine is turned off after 60 minutes of modification, and the modified kaolin superfine powder is taken out, and the activation index is determined to be 85%.

[0027] Discarded newsprint is selected as the fiber raw material, the cellulose content is 93.4%, and the ash content is 6.6%. Take newsprint 3.27Kg and soak in water for 1 hour, make it into fiber slurry with beating equipment, the slurry concentration is 5%, pour the fiber slurry into composite equipment, add the coated kaolin after modification in the composite equipment, Start the emulsifier, control the rotor speed to 5000r / min, and after 20 minutes of timing, the reaction is over. Pour the reacted slurry into the filter bag for filtration. After filtering,...

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Abstract

The invention refers to a method of preparing wood fiber for road. The method is as follows: use scrap newspapers as raw materials, and after cleaning &purifying, soaking and pulping, compound it and ultra-small powder of denatured kaolin under normal temperature and pressure, the kaolin's magnitude is 11%-23% (wt%) of fiber's; then after dehydration, desiccation and scatterning, the fiber production is made into scattered-shape wood fiber; then the wood fiber is mixed with pitch solution under normal temperature and pressure and stirring condition, then control the temperature to be 70-100 degree C to make solvent oil volatilize and then cool it for circular utilization; then extrude the fiber to shape and cool it to obtain the grain-shape road wood fiber.

Description

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Claims

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Application Information

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Owner NORTHEASTERN UNIV
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