Optimization of Synthesis Conditions for Urea-Formaldehyde Slow-Release Fertilizer Using Response Surface Methodology
Year: 2024
Type: article
Abstract: In this study, we optimized the preparation of urea-formaldehyde fertilizer using response surface methodology with a Box-Behnken experimental design. The aim was to maximize the difference between CWIR and HWIR to maximize the content of slow-release insoluble nitrogen. In this work, a model of the impact of reaction factors on CWIR and HWIR was established. Through analysis of variance, the final model was significant. According to this model, the optimal reaction conditions were: a reaction temperature of 42.5 °C, a reaction time of 66.2 min, a U/F of 1.68, and a pH 3.3. Under these optimal conditions, the CWIR and HWIR reached 55.65 and 33.92%, respectively. In addition, the samples were characterized by scanning electron microscopy and thermal stability analysis. This study accurately synthesized urea-formaldehyde products with specific release periods according to production needs in order to improve the efficiency of fertilizer utilization.
Source: ACS Omega
Authors: Yanle Guo, Yiyun Shi, Shugang Zhang, Zhenping Hao, Fengyuan Zhuang, Qiaobo Zhou, Hao Lu, Qunxiang Cui
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
SDG: Zero hunger
Open Access status: gold
Estimated APC paid: $1,935
Funder: Jinling Institute of Technology
Award: G496161590
OpenAlex ID: W4403483042