Chemical modification method of bagasse for purification

A technology of chemical modification and bagasse, applied in chemical instruments and methods, separation methods, other chemical processes, etc., can solve the problems of wood chip type and specification limitations, large performance changes, limited sources, etc., to improve activation efficiency, High degree of fibrosis and the effect of improving permeability

Active Publication Date: 2013-07-31
福建胜优环保科技有限公司
View PDF11 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] These patented methods use wood chips, peanut shells, and corncobs as raw materials, and through simple alkali, salt water, steam, or chemical treatments, the processability of fiber-containing substances is improved, and the use of filters is extended. Life expectancy, improving the accuracy of filtering solid impurities, and reducing exhaust emissi

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Chemical modification method of bagasse for purification

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0037] Example 1

[0038] Take 5.5 kg of bagasse with a particle size of 4-10 mesh and put it into a 50-liter pressure-resistant stirred reactor with PTFE lining and heating tube, and then add 25 kg of 0.2mol / L sulfuric acid aqueous solution at 60℃ Under the condition of airtight stirring and immersion for 6.5 hours, then filtered, washed 4 times with water 4 times the volume of bagasse, drained, placed in an oven at 80°C for 5 hours, and the bagasse has a moisture content of 13%. Then put the obtained bagasse into a 50-liter pressure-resistant stirred reactor with polytetrafluoroethylene lining and heating tube, and add 25 kg of tetrahydrofuran, dimethyl sulfoxide, urea, sodium sulfite, sodium ethoxide, ethanol and water. A mixed solvent with a mass ratio of 0.15:0.2:0.5:0.2:5:0.7:80, reacted for 24 hours under a closed condition of 60℃, filtered and washed with water 4 times the volume of bagasse for 7 times and drained , Put it in an oven at 115°C for 8 hours to obtain a modi...

Example Embodiment

[0039] Example 2

[0040] Take 6.5 kg of bagasse with a particle size of 4-15 mesh and put it into a 50-liter pressure-resistant stirred reactor with PTFE lining and heating tube, and then add 20 kg of 0.15mol / L sulfuric acid aqueous solution at 70°C Under the condition of airtight stirring and immersion for 5 hours, then filtered, washed with water 4 times the volume of bagasse and drained, put in an oven at 60°C for 4 hours, and the bagasse has a moisture content of 12%. Then put the obtained bagasse into a 50-liter pressure-resistant stirred reactor with a polytetrafluoroethylene lining and heating tube, and add 20 kg of tetrahydrofuran, dimethyl sulfoxide, urea, sodium sulfite, sodium hydroxide, ethanol and water The mass ratio of the mixed solvent is 0.15:0.1:0.6:0.3:6:0.5:60, reacted for 48 hours under a closed condition of 50℃, filtered and washed with water 3.5 times the volume of bagasse for 6 times and drained Dry it and bake it in an oven at 100°C for 10 hours to obta...

Example Embodiment

[0041] Example 3

[0042] Take 4 kg of bagasse with a particle size of 15-30 mesh and put it into a 50-liter pressure-resistant stirred reactor with PTFE lining and heating tube, and then add 18 kg of 0.45mol / L sulfuric acid aqueous solution at 20°C Under the condition of airtight stirring and immersion for 8 hours, and then filtered, washed with water 5 times the volume of bagasse for 4 times, drained, put in an oven at 70°C for 4 hours, and the bagasse has a moisture content of 15%. Then put the obtained bagasse into a 50-liter pressure-resistant stirred reactor with polytetrafluoroethylene lining and heating tube, add 30 kg of tetrahydrofuran, dimethyl sulfoxide, urea, sodium sulfite, potassium hydroxide, ethanol and water The mixed solvent with a mass ratio of 0.12:0.2:0.55:0.3:9:0.6:100 was reacted for 72 hours under a closed condition at 70°C. After filtration, it was washed with water 4 times the volume of bagasse for 6 times and drained. Dry, put it in an oven at 90°C fo...

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

No PUM Login to view more

Abstract

The invention provides a chemical modification method of bagasse for purification, which is used for filtering lubricating oil and takes the bagasse as a raw material. The chemical modification method comprises the following steps of: firstly dipping the bagasse in a sulfuric acid water solution of 0.01-1.0mol/L at the temperature of 20-80 DEG C for 1-10h, then placing the obtained bagasse into a mixed solution of tetrahydrofuran, dimethyl sulfoxide, urea, sodium silicate, alkali, ethanol and water according to the mass ratio of (0.1-1): (0.1-1): (0.1-5): (0.01-3): (0.25-15): (0.1-8): 15-200 for reaction, performing the reaction at the temperature of 20-80 DEG C for 1-100h, and washing and drying the bagasse after the reaction to obtain the bagasse with a high specific surface and a rich amorphous functional structure. The bagasse can be used for preparing various high-efficient filters, in particular to engine oil filters, and can greatly prolong the service life of engine oil and simultaneously reduce the emission of harmful substances in automobile tail gas.

Description

technical field [0001] The invention relates to a chemical modification method of bagasse used for filtering, in particular to a chemical catalytic modification treatment method of bagasse used for filtering lubricating oil. Background technique [0002] Bagasse is the fibrous residue of sugarcane stem after crushing and extracting sugarcane juice. It is the main by-product of sugar industry and is a renewable resource. Every time 1 ton of sucrose is produced, about lt of bagasse will be produced. Bagasse is an important renewable biomass resource. China is the third largest sugarcane planting country next to Brazil and India. The sugarcane in the southern sugarcane region mainly includes sugar cane and fruit cane, with a total output of more than 70 million tons. The output reached 7 million tons. The components of bagasse are mainly cellulose, hemicellulose and lignin, with less protein, starch and soluble sugar. Bagasse has a high degree of lignification, generally c...

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): C08H8/00B01J20/24B01J20/30B01D39/18
Inventor 陈晓晖潘守泉
Owner 福建胜优环保科技有限公司
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