Esterified lignins from Pinus caribaea as bentonite-dispersing agents

Nacarid Delgado, Fredy Ysambertt, Raúl Ochoa, Gerson Chávez, Bélgica Bravo, Jorge Santos, Dannye García

Resultado de la investigación: Article

2 Citas (Scopus)

Resumen

Chemical modification of kraft lignin from Pinus caribaea (Sénécl.) W.H.G. was performed with cyclic anhydrides (succinic, maleic and glutaric) assisted by microwave radiation. Esterification of the lignin was proven by the mass increase and Fourier Transform Infrared (FTIR) spectroscopy. Aqueous suspensions of bentonite were prepared using unmodified lignin and the corresponding derivatives as dispersants. Suspensions were evaluated in term of stability, viscosity and dispersibility. The esterified derivatives showed better dispersing properties than the neat lignin because the derivatives-based suspensions were less viscous. The dispersing properties of lignin and the esterified derivatives were compared with those of a high-molecular-weight lignin fraction obtained by ultrafiltration. In addition, two commercial lignosulfonate dispersants commonly used for drilling muds were used as references. The high-molecular-weight esterified derivatives proved to be better dispersants than their unfractionated counterparts. In general, the esterified derivatives showed similar properties to those obtained with the commercial dispersants. Modified lignin based on succinic-, maleic- and glutaric-anhydride is expected to play a key role in the design of novel bio-based dispersants for drilling-mud applications.

Idioma originalEnglish
Páginas (desde-hasta)41-51
Número de páginas11
PublicaciónClay Minerals
Volumen53
N.º1
DOI
EstadoPublished - 1 mar 2018

Huella dactilar

Bentonite
Lignin
bentonite
lignin
dispersant
Derivatives
Suspensions
Drilling fluids
Succinic Anhydrides
Molecular weight
Maleic Anhydrides
mud
drilling
Chemical modification
microwave radiation
Esterification
Succinic Acid
Ultrafiltration
ultrafiltration
FTIR spectroscopy

ASJC Scopus subject areas

  • Geochemistry and Petrology

Citar esto

Delgado, N., Ysambertt, F., Ochoa, R., Chávez, G., Bravo, B., Santos, J., & García, D. (2018). Esterified lignins from Pinus caribaea as bentonite-dispersing agents. Clay Minerals, 53(1), 41-51. https://doi.org/10.1180/clm.2018.3
Delgado, Nacarid ; Ysambertt, Fredy ; Ochoa, Raúl ; Chávez, Gerson ; Bravo, Bélgica ; Santos, Jorge ; García, Dannye. / Esterified lignins from Pinus caribaea as bentonite-dispersing agents. En: Clay Minerals. 2018 ; Vol. 53, N.º 1. pp. 41-51.
@article{5fe3ae79b96846a9b5a5c5710bb842bb,
title = "Esterified lignins from Pinus caribaea as bentonite-dispersing agents",
abstract = "Chemical modification of kraft lignin from Pinus caribaea (S{\'e}n{\'e}cl.) W.H.G. was performed with cyclic anhydrides (succinic, maleic and glutaric) assisted by microwave radiation. Esterification of the lignin was proven by the mass increase and Fourier Transform Infrared (FTIR) spectroscopy. Aqueous suspensions of bentonite were prepared using unmodified lignin and the corresponding derivatives as dispersants. Suspensions were evaluated in term of stability, viscosity and dispersibility. The esterified derivatives showed better dispersing properties than the neat lignin because the derivatives-based suspensions were less viscous. The dispersing properties of lignin and the esterified derivatives were compared with those of a high-molecular-weight lignin fraction obtained by ultrafiltration. In addition, two commercial lignosulfonate dispersants commonly used for drilling muds were used as references. The high-molecular-weight esterified derivatives proved to be better dispersants than their unfractionated counterparts. In general, the esterified derivatives showed similar properties to those obtained with the commercial dispersants. Modified lignin based on succinic-, maleic- and glutaric-anhydride is expected to play a key role in the design of novel bio-based dispersants for drilling-mud applications.",
keywords = "bentonite, dispersant, esterification, lignin",
author = "Nacarid Delgado and Fredy Ysambertt and Ra{\'u}l Ochoa and Gerson Ch{\'a}vez and B{\'e}lgica Bravo and Jorge Santos and Dannye Garc{\'i}a",
year = "2018",
month = "3",
day = "1",
doi = "10.1180/clm.2018.3",
language = "English",
volume = "53",
pages = "41--51",
journal = "Clay Minerals",
issn = "0009-8558",
publisher = "Mineralogical Society",
number = "1",

}

Delgado, N, Ysambertt, F, Ochoa, R, Chávez, G, Bravo, B, Santos, J & García, D 2018, 'Esterified lignins from Pinus caribaea as bentonite-dispersing agents', Clay Minerals, vol. 53, n.º 1, pp. 41-51. https://doi.org/10.1180/clm.2018.3

Esterified lignins from Pinus caribaea as bentonite-dispersing agents. / Delgado, Nacarid; Ysambertt, Fredy; Ochoa, Raúl; Chávez, Gerson; Bravo, Bélgica; Santos, Jorge; García, Dannye.

En: Clay Minerals, Vol. 53, N.º 1, 01.03.2018, p. 41-51.

Resultado de la investigación: Article

TY - JOUR

T1 - Esterified lignins from Pinus caribaea as bentonite-dispersing agents

AU - Delgado, Nacarid

AU - Ysambertt, Fredy

AU - Ochoa, Raúl

AU - Chávez, Gerson

AU - Bravo, Bélgica

AU - Santos, Jorge

AU - García, Dannye

PY - 2018/3/1

Y1 - 2018/3/1

N2 - Chemical modification of kraft lignin from Pinus caribaea (Sénécl.) W.H.G. was performed with cyclic anhydrides (succinic, maleic and glutaric) assisted by microwave radiation. Esterification of the lignin was proven by the mass increase and Fourier Transform Infrared (FTIR) spectroscopy. Aqueous suspensions of bentonite were prepared using unmodified lignin and the corresponding derivatives as dispersants. Suspensions were evaluated in term of stability, viscosity and dispersibility. The esterified derivatives showed better dispersing properties than the neat lignin because the derivatives-based suspensions were less viscous. The dispersing properties of lignin and the esterified derivatives were compared with those of a high-molecular-weight lignin fraction obtained by ultrafiltration. In addition, two commercial lignosulfonate dispersants commonly used for drilling muds were used as references. The high-molecular-weight esterified derivatives proved to be better dispersants than their unfractionated counterparts. In general, the esterified derivatives showed similar properties to those obtained with the commercial dispersants. Modified lignin based on succinic-, maleic- and glutaric-anhydride is expected to play a key role in the design of novel bio-based dispersants for drilling-mud applications.

AB - Chemical modification of kraft lignin from Pinus caribaea (Sénécl.) W.H.G. was performed with cyclic anhydrides (succinic, maleic and glutaric) assisted by microwave radiation. Esterification of the lignin was proven by the mass increase and Fourier Transform Infrared (FTIR) spectroscopy. Aqueous suspensions of bentonite were prepared using unmodified lignin and the corresponding derivatives as dispersants. Suspensions were evaluated in term of stability, viscosity and dispersibility. The esterified derivatives showed better dispersing properties than the neat lignin because the derivatives-based suspensions were less viscous. The dispersing properties of lignin and the esterified derivatives were compared with those of a high-molecular-weight lignin fraction obtained by ultrafiltration. In addition, two commercial lignosulfonate dispersants commonly used for drilling muds were used as references. The high-molecular-weight esterified derivatives proved to be better dispersants than their unfractionated counterparts. In general, the esterified derivatives showed similar properties to those obtained with the commercial dispersants. Modified lignin based on succinic-, maleic- and glutaric-anhydride is expected to play a key role in the design of novel bio-based dispersants for drilling-mud applications.

KW - bentonite

KW - dispersant

KW - esterification

KW - lignin

UR - http://www.scopus.com/inward/record.url?scp=85054824143&partnerID=8YFLogxK

U2 - 10.1180/clm.2018.3

DO - 10.1180/clm.2018.3

M3 - Article

AN - SCOPUS:85054824143

VL - 53

SP - 41

EP - 51

JO - Clay Minerals

JF - Clay Minerals

SN - 0009-8558

IS - 1

ER -

Delgado N, Ysambertt F, Ochoa R, Chávez G, Bravo B, Santos J y otros. Esterified lignins from Pinus caribaea as bentonite-dispersing agents. Clay Minerals. 2018 mar 1;53(1):41-51. https://doi.org/10.1180/clm.2018.3