This thesis had three different objectives: i) to discover different methods for kraft lignin purification that could be used alongside acid precipitation, ii) test the most suitable treatment on laboratory scale and evaluate the potentiality of this method as a kraft lignin purification method, and iii) to compare the feasibility of lignin purification alongside the acid precipitation compared...

The compositions and molecular structures of anhydrous and hydrated cements are established by using advanced solid-state nuclear magnetic resonance (NMR) spectroscopy methods to distinguish among different molecular species and changes that occur as a result of cement hydration and setting. One- and two-dimensional (2D) solid-state (29)Si and (27)Al magic-angle spinning NMR methodologies, incl...

Alkali-free, aluminium-based accelerators are often used for shotcrete linings in tunnels and mines, where external sulfate attack can occur. Therefore, it is essential to know, if the influence of on cement hydrate assemblage negatively impacts resistance. This study focuses effect hydration consequences attack. Aluminum sulfate-based cause rapid setting due very early formation ettringite acc...

The novel and facile multi-stage method was used for the conversion of bamboo into nanocellulose single cell protein. Firstly, chips were treated with sodium hydroxide solution followed by hydrogen peroxide bleaching obtaining cellulose pulp a brightness 80% ISO. In second stage, obtained bleached cellulosic achieved dilute sulfuric acid filtration sugar solution, which than Candida utilis cult...

Nanoparticles of strontium aluminate phosphors co-a tivated by Eu2+ and Dy3+ have been prepared by heating theprecursorsobtained fromnitrate salt–ammoniumacetic–urea–gel combustionprocess at temperature of 1150 ◦C in a weak reductive atmosphere of thermal carbon. Transmission electronmicroscope

The effect of pseudowollastonite (Pw) additions on the in vitro bioactivity and compressive strength of composites based on calcium aluminate cement (CAC) was studied. Composites were prepared by mixing calcium aluminate clinker with pseudowollastonite (5 and 10 wt%) at a w/c ratio of 0.4 (0.015M LiCl aqueous solution). In order to assess the in vitro bioactivity and compressive strength, compo...

In hydrothermal valorization of black liquor (BL) from the Kraft process, separation inorganic salts is pivotal to prevent them fouling downstream equipment such as reactors and for cost-efficient recycling into pulp cooking chemicals. this work, phase behavior present in BL was studied supercritical water conditions were optimized. A high-pressure differential scanning calorimetry study indica...

Leaves of Perilla frutescens, commonly known as perilla are widely used in Korea, due to their medicinal properties. The rust disease of perilla interrupts its wide use every year. The present study was carried out to evaluate the control of perilla rust disease by using oak pyroligneous liquor having various biological properties. The rust disease infected perilla leaves were applied with 100 ...

The use of multiple fermentations is one of the most specific characteristics of Maotai--flavoured liquor production. In this research, the variation of volatile composition of Maotai-flavoured liquor during its multiple fermentations is investigated using statistical approaches. Cluster analysis shows that the obtained samples are grouped mainly according to the fermentation steps rather than ...