Method for producing high-efficiency concrete additive by using bark rich in tannic acid
A technology of concrete admixture and bark, applied in solid waste removal, organic chemistry, etc., can solve problems such as lack of market, poor quality, and insufficient purity
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0010] (1) Crushing and screening of Myrica tomentosa bark: the bark of Myrica tomentosa is broken into 2.0mm~20mm scraps with a pulverizer, and the scraps greater than 20mm are subjected to secondary crushing;
[0011] (2) Lixiviation and modification of scrap: put the pulverized Myrica tomentosa bark into the extraction tank, then add water in the extraction tank according to the solid-to-liquid mass ratio of 1:4, the heating control temperature is 120°C, and the extraction The extraction uses 7 normal pressure tank groups, leaching step by step, leaching 10 times, and the leaching time is 12h, adding a composite modifier composed of sodium sulfite and sodium bisulfite in the leaching tank, the amount of composite modifier 13% of bark mass;
[0012] (3) Concentration and drying: Concentrate the obtained extract by evaporation first, and then make the concentrated solution into a powdery solid by spray drying and other methods, which is a high-efficiency concrete admixture an...
Embodiment 2
[0014] (1) Crushing and screening of black wattle bark: the black wattle bark is crushed into 10mm-15mm scraps with a pulverizer, and secondary crushing is carried out for larger than 15mm scraps;
[0015] (2) Extraction and modification of scrap: put the pulverized black wattle bark into the extraction tank, then add water in the extraction tank according to the solid-to-liquid mass ratio of 1:6, heat and control the temperature to 100°C, and extract The extraction uses 5 normal pressure tank groups, leaching step by step, leaching 7 times, and the leaching time is 8h, adding a composite modifier composed of sodium sulfite and sodium bisulfite in the leaching tank, the amount of composite modifier 30% of bark mass;
[0016] (3) Drying: Concentration and drying: Concentrate the obtained extract by evaporation first, and then make the concentrated liquid into a powdery solid by spray drying and other methods, which is a high-efficiency concrete admixture and can be put into use...
Embodiment 3
[0018] (1) Crushing and screening of larch bark: the larch bark is crushed into 0.5mm-10mm fragments with a pulverizer, and the fragments greater than 10mm are subjected to secondary crushing;
[0019] (2) Extraction and modification of scraps: put the pulverized larch bark into the extraction tank, then add water in the extraction tank according to the solid-to-liquid mass ratio of 1:4, heat and control the temperature to 80°C, and extract Use 8 normal pressure tank groups, leaching step by step, leaching 12 times, leaching time is 10h, adds the compound modifier that is made up of sodium sulfite and sodium bisulfite in the leaching tank, and the compound modifier addition amount is 6% of bark mass;
[0020] (3) Concentration and drying: Concentrate the obtained extract by evaporation first, and then make the concentrated solution into a powdery solid by spray drying and other methods, which is a high-efficiency concrete admixture and can be put into use.
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com