Paper-making white mud based artificial stone preparation method

A technology for papermaking lime mud and artificial stone, which is applied in the field of preparation of papermaking lime mud-based artificial stone, can solve the problems of increasing the compactness of the matrix, high production cost, waste of resources, etc., and achieves the effects of good water resistance, hard texture and simple production.

Inactive Publication Date: 2017-07-21
CHANGZHOU UNIV
View PDF1 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention: Aiming at the current disposal methods of papermaking lime mud are mostly landfill or stacking, which is easy to cause environmental pollution, waste of resources and social hazards, and at the same time, the production procedure of artificial stone is complicated and the production cost is high. The present invention Use papermaking white mud as the base material, grind and mix it with dolomite powder and rice wheat stone to increase the activity, then use citric acid to adjust its alkalinity, and at the same time acidify it to increase the formation of micropores, supplemented by adding tetratitanate Modified with butyl ester and silane coupling agent to increase the comp

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0017] According to the mass ratio of 7:2:3, take papermaking white mud, dolomite powder and medical stone powder and put them into a Raymond mill and grind them at 120r / min for 30min, collect the milled matter in the Raymond mill, and grind them Put the 1.3mol / L citric acid solution of 1 times the mass of the powder and the milled substance into the reaction kettle, set the temperature at 60°C, stir at 200r / min for 20min, and then add tetra-titanate with 1% of the mass of papermaking white mud respectively. Butyl ester and papermaking white mud mass 1% triethoxysilane, heat up to 160°C, stir for 7 hours; after the above stirring is completed, naturally cool to room temperature, discharge, collect the discharge, and spray dry the discharge , set the outlet temperature to 170°C, collect the dry matter, put the dry matter and low-density polyethylene into the mixer according to the mass ratio of 7:4, set the temperature of the front roll to 175°C, and the temperature of the rear ...

example 2

[0020] According to the mass ratio of 7:2:3, take papermaking white mud, dolomite powder and medical stone powder and put them into a Raymond mill and grind them at 120r / min for 40min, collect the milled matter in the Raymond mill, and grind them Put the 1.3mol / L citric acid solution twice the amount of the powder and the powder into the reaction kettle, set the temperature at 70°C, stir at 200r / min for 25min, and then add tetra-titanate with 2% mass of papermaking white mud respectively Butyl ester and papermaking white mud mass 2% triethoxysilane, heated up to 190 ° C, stirred for 9 hours; after the above stirring was completed, naturally cooled to room temperature, discharged, collected the discharged material, and spray-dried the discharged material , set the outlet temperature to 170°C, collect the dry matter, put the dry matter and low-density polyethylene into the mixer according to the mass ratio of 9:4, set the temperature of the front roll to 180°C, and the temperatur...

example 3

[0023]According to the mass ratio of 7:2:3, take papermaking white mud, dolomite powder and medical stone powder and put them into a Raymond mill and grind them at 120r / min for 35min, collect the milled matter in the Raymond mill, and grind them Put the 1.3mol / L citric acid solution twice the amount of the powder and the milled substance into the reaction kettle, set the temperature at 65°C, stir at 200r / min for 23min, and then add tetra-titanate with 1.5% of the mass of papermaking white mud respectively. Butyl ester and papermaking white mud quality 1.5% triethoxysilane, heat up to 170 ° C, stir for 8 hours; after the above stirring is completed, naturally cool to room temperature, discharge, collect the discharge, and spray dry the discharge , set the outlet temperature to 170°C, collect the dry matter, put the dry matter and low-density polyethylene into the mixer according to the mass ratio of 8:4, set the temperature of the front roll to 178°C, and the temperature of the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Compressive strengthaaaaaaaaaa
Flexural strengthaaaaaaaaaa
Bending strengthaaaaaaaaaa
Login to view more

Abstract

The invention relates to a paper-making white mud based artificial stone preparation method, and belongs to the technical field of waste reuse. Paper-making white mud is used as a base material and milled and mixed with dolomite powder and medical stones to increase activity, citric acid is used for adjusting the alkalinity of mixture and acidizing the mixture, formation of micropores is increased, tetrabutyl titanate and silane coupling agents are added to modify the mixture, compatibility of the mixture and low-density polyethylene is enhanced, the mixture is mixed with the low-density polyethylene, so that the space among the micropores is filled with the low-density polyethylene, strength and water resistance are enhanced, the mixture is finally mixed with cement, bamboo fibers and the like, mixed materials function as micro-crystals, a space mesh structure is filled with the mixed materials, so that solid gel and fiber crystals grow, matrix compaction is increased, and finally, vibration, drying, demolding and maintenance are performed to prepare artificial stones. The paper-making white mud is sufficiently used, resource utilization of waste is realized, and the prepared artificial stones are simple to manufacture and low in cost.

Description

technical field [0001] The invention relates to a method for preparing paper-making lime mud-based artificial stone, and belongs to the technical field of waste recycling. Background technique [0002] Papermaking white mud comes from the white mud recovery stage of the alkali recovery workshop in the papermaking process; in the papermaking process, the pulping black liquor is extracted, evaporated and concentrated, and roasted in the alkali recovery furnace to obtain a melt, which is dissolved in water to form a green liquor, and then Lime is added to the green liquor for causticizing reaction to obtain white precipitate, which is white mud. According to the existing technology, about 1 ton of lime mud is produced for every 1 ton of pulp produced, and with the increase in the number and scale of alkali recovery systems newly built by pulp and paper enterprises in my country, the produced lime mud will increase and accumulate in a large proportion. [0003] At present, most...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C04B28/04C04B111/20C04B111/27
CPCC04B28/04C04B2111/00017C04B2111/20C04B2111/27C04B2201/50C04B18/0427C04B14/26C04B14/041C04B24/06C04B24/40C04B24/42C04B24/2611C04B24/08C04B16/02C04B22/00C04B24/18
Inventor 陈兴权宋昊
Owner CHANGZHOU UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap