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Title

Use of Kraft Pine Lignin in Controlled-Release Fertilizer Formulations

AuthorsGarcía, M C.; Díez López, José Antonio ; Vallejo, A.; García, L.; Cartagena, Maria C.
KeywordsKraft Pine Lignin
Controlled-Release
Fertilizer Formulations
Issue Date8-Jan-1996
PublisherAmerican Chemical Society
CitationIndustrial Engineering Chemical Research 35 (1): 245–249 (1996)
AbstractLignin was used as a majority component in a controlled-release fertilizer coating, since this waste product displays properties that make it an ideal substance for application in soil together with conventional mineral fertilizers. Pine lignin marketed under the name of Indulin AT and obtained by the Kraft process was used. Insoluble in water for all pH values that may occur in soil, this product was employed for coating pelleted urea. Seven series of fertilizer were obtained, which also contained various types of rosins and in some cases linseed oil as additives. The physical−chemical evaluation of these fertilizers showed that the most efficient are those whose coating embodies a mixture of dimerized, esterified, and natural rosins, as well as lignin. It was also demonstrated that the efficiency of the products noticeably increases by adding linseed oil as a sealing agent.
Description5 páginas, 4 figuras y 4 tablas estadísticas
Publisher version (URL)http://dx.doi.org/10.1021/ie950056f
URIhttp://hdl.handle.net/10261/82071
DOI10.1021/ie950056f
Appears in Collections:(ICA) Artículos
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