Influence of Sodium Borohydride on Kraft Pulping of European Black Pine as a Digester Additive

2011 ◽  
Vol 50 (4) ◽  
pp. 2441-2444 ◽  
Author(s):  
Sezgin Koray Gulsoy ◽  
Hudaverdi Eroglu
Keyword(s):  
Sodium Borohydride ◽  
Kraft Pulping ◽  
Black Pine ◽  
European Black Pine

scholarly journals Influence of Some Boron Compounds on Kraft Pulping of European Black Pine and European Aspen

2017 ◽  
Vol 68 (4) ◽  
pp. 323-331
Author(s):  
Ayben Kilic Pekgözlü ◽  
Sezgin Koray Gülsoy ◽  
Andrey Pranovich
Keyword(s):  
Kraft Pulping ◽  
Black Pine ◽  
Boron Compounds ◽  
European Aspen ◽  
European Black Pine

Polysulfide-borohydride modification of southern pine alkaline pulping integrated with hydrothermal pre-extraction of hemicelluloses

TAPPI Journal ◽  
2011 ◽  
Vol 10 (7) ◽  
pp. 9-16
Author(s):  
SUNG-HOON YOON ◽  
HARRY CULLINAN ◽  
GOPAL A. KRISHNAGOPALAN
Keyword(s):  
Loblolly Pine ◽  
Sodium Borohydride ◽  
Kraft Pulping ◽  
Hot Water ◽  
Pulp Yield ◽  
Paper Strength ◽  
Southern Pine ◽  
Two Stage ◽  
Simultaneous Treatment ◽  
Process Modification

We studied three process modifications to investigate their effects on the property and yield recovery capabilities of kraft pulping integrated with hemicellulose pre-extraction of southern pine. Loblolly pine chips were pre-extracted with hot water until the sugar extraction yield reached the targeted value of 10% and then subjected to conventional and modified kraft pulping. Modification included polysulfide pretreatment; polysulfide-sodium borohydride dual pretreatment, and polysulfide followed by polysulfide-sodium borohydride dual pretreatment two-stage pretreatments prior to kraft pulping. In the first modification, about 5% of the lost pulp yield (total 7%) caused by hemicellulose pre-extraction could be recovered with 15%-20% polysulfide pretreatment. Complete recovery (7%) was achieved with simultaneous pretreatment using 15% polysulfide and 0.5% sodium borohydride with 0.1% anthraquinone in polysulfide-sodium borohydride dual pretreatment. Two-stage pretreatment using recycled 15% polysulfide followed by simultaneous treatment of 6% polysulfide and 0.4%–0.5% sodium borohydride with 0.1% anthraquinone also achieved 100% yield recovery. Continuous recycling of 15% polysulfide employed in the two-stage process modification maintained its yield protection efficiency in a repeated recycling cycle. No significant changes in paper strength were found in handsheets prepared from the three process modifications, except for a minor reduction in tear strength.

scholarly journals Improvement of the Physicochemical Properties of Distilled Products of Petroleum (Diesel, JP-8) and Mix Diesel-Biodiesel by Using European Black Pine Oleoresin

2016 ◽  
Vol 07 (05) ◽  
pp. 583-590 ◽  
Author(s):  
Constantinos Tsanaktsidis ◽  
Adams Stimoniaris ◽  
Spyros Bousios ◽  
George Tzilantonis ◽  
Athanasios Scaltsoyiannes ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Black Pine ◽  
European Black Pine

Impact of future climate change on a genetic plantation of hybrid pine

Botany ◽  
2015 ◽  
Vol 93 (7) ◽  
pp. 397-404 ◽  
Author(s):  
Sophan Chhin
Keyword(s):  
Climate Change ◽  
Pinus Densiflora ◽  
Pinus Nigra ◽  
Red Pine ◽  
Future Climate Change ◽  
Black Pine ◽  
Moisture Index ◽  
Hybrid Pine ◽  
Sib Families ◽  
European Black Pine

European black pine (Pinus nigra Arnold) and Japanese red pine (Pinus densiflora Siebold & Zucc.) are nonnative conifers that have been introduced into the United States and have the ability to hybridize with each other and can potentially become an invasive threat. Interspecific hybridization is an important component of applied genetic tree improvement programs. This study retrospectively examined the influence of climate on interannual growth patterns of 12 full-sib families of hybrid pine that were derived from the hybridization of European black pine and Japanese red pine. The hybrids (Pinus nigra × Pinus densiflora) were initially planted in 1982 in southern mid-Michigan at Michigan State University (MSU) Sandhill Research Area. Tree-ring analysis methods (dendrochronology) were used to quantify the influence of climate (i.e., mean temperature and moisture index) on interannual basal area growth rates of the hybrid pine over an 18 year period (1991–2008). The productivity of the 12 full-sib families of hybrid pine were also projected under future climate change in the 21st century based on the IPCC A1B emission scenario. Climatic sensitivities that were identified in the hybrid pine families included high temperature stress in the summer and fall, moisture stress in the summer, winter harshness, and the timing of the start of the growing season. According to projections, by the end of the 21st century, 8 out of the 12 pine families will show significant decreases in growth outside of the historical norm under the temperature-based dendrochronology models, while 4 families will show significant declines under the moisture index models. The results indicate that the hybrid pine families appear to be generally resilient to future changes in moisture, but will likely be extremely vulnerable to future climatic warming, and thus do not appear to be a future invasive threat. This study represents the first dendrochronological examination of hybrid pine in North America.

Lluciapomaresius nisae, a new species of Ephippigerini (Orthoptera: Tettigoniidae: Bradyporinae) from the northeast of the Iberian Peninsula

Zootaxa ◽  
2017 ◽  
Vol 4221 (1) ◽  
pp. 123 ◽  
Author(s):  
JOSEP MARIA OLMO-VIDAL
Keyword(s):  
New Species ◽  
Iberian Peninsula ◽  
Pinus Nigra ◽  
Calling Song ◽  
Black Pine ◽  
Male Calling ◽  
Mediterranean Pine ◽  
Rosemary Scrub ◽  
A New Species ◽  
European Black Pine

A new species of the genus Lluciapomaresius Barat, 2012 is described from Serra de Llaberia in Catalonia (in the northeast of Iberian Peninsula). Lluciapomaresius nisae n. sp. was collected in a Mediterranean pine forest dominated by European black pine (Pinus nigra) and secondarily by Calcicolous rosemary scrub. L. nisae is compared to L. panteli (Navàs, 1899) from which it can be separated mainly by the shape of the male cerci, the titillators and the male calling song. Also in the females by the protuberances at the base of the ventral valves of the ovipositor. 

scholarly journals Recent, Late Pleistocene fragmentation shaped the phylogeographic structure of the European black pine (Pinus nigra Arnold)

2019 ◽  
Vol 15 (5) ◽  
Author(s):  
Caroline Scotti-Saintagne ◽  
Guia Giovannelli ◽  
Ivan Scotti ◽  
Anne Roig ◽  
Ilaria Spanu ◽  
...  
Keyword(s):  
Late Pleistocene ◽  
Pinus Nigra ◽  
Phylogeographic Structure ◽  
Black Pine ◽  
European Black Pine
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