Abstract
The residual ester in sodium silicate sand and recycled sand has an important influence on the performance of recycled sand. In this paper, a new method to extract and detect residual esters in water sodium silicate sand and regenerated sand is established. The residual ester of ester hardened water sodium silicate sand was extracted by the extractor using petroleum ether, ethanol, acetone and other solvents. After hydrolysis of residual ester in extracts, the content of acid was determined by means of neutralization titration. The content of the residual ester was determined by using acid base titration test. The experimental results are obtained through the study of extraction solvent, extraction temperature, extraction time and liquid solid ratio. Based on the single factor experiment, the optimum extraction process was determined by using the four-factor three-level orthogonal test to optimize the extraction conditions. The best extraction technology: extraction solvent for petroleum ether, extraction temperature is 80 °C, extracting time 1.5 h. This study lays the foundation for evaluating the performance of sodium silicate regeneration sand.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: IOP Conference Series: Materials Science and Engineering
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
