Influence of Side Chain in the Reaction of Lignin Model Compounds with Peracetic Acid

Hatakeyama, Hyōe; Suzuki, Kanemichi; Nakano, Junzo; Migita, Nobuhiko

doi:10.1246/nikkashi1898.71.2_247

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These groups are mostly negatively charged groups that can be dissociated and can serve as cationic protective agents for maintaining ammonium, potassium and other cationic nutrients. 23 More specifically, the molecular structure of SRF might act as a physical barrier for the diffusion of K, which would reduce the release rate of K.…”

Section: Slow Release Behavior Of Srfmentioning

confidence: 99%

Preparation of Microcapsules of Slow-Release NPK Compound Fertilizer and the Release Characteristics

Pang¹,

Hou²,

Wang³

et al. 2018

J. Braz. Chem. Soc.

View full text Add to dashboard Cite

In this study, a novel type of slow-release fertilizer (SRF) was synthesized through lignin-based microcapsules. K 2 HPO 4 and urea were coated by lignin and formaldehyde to prepare microcapsules of NPK compound SRF. The slow-release performance was measured by determining the NPK contents in water solution and soil column leaching. The release amounts of N, P and K after 5 days were 95.39, 95.28 and 96.75% in water, and 83.35, 96.62 and 90.75% in soil, respectively. The properties of SRF were analyzed by Fourier transform infrared spectroscopy, thermogravimetry and scanning electron microscopy. NPK release from the SRF was promoted by higher temperature and acid environment, but inhibited by alkaline environment. The first order kinetics equation provides the best correlation to describe nutrient release characteristics. The results indicated that SRF have good slow-release properties and are cost-saving and environment-friendly, and thus can efficiently improve the utilization efficiency of fertilizers in agricultural production.

show abstract

Section: Slow Release Behavior Of Srfmentioning

confidence: 99%