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Use of Carbonized Seed Hulls as Alternative to Bleaching Clay During Miscella Bleaching of Oils
Carbonized Seed Hulls Bleaching Clay During Miscella
2016/6/2
Soybean oil (SBO) was miscella bleached in hexane using carbonized hulls of Jojoba (Jo), Jatrova (Ja), Peanuts (PN) and Pistachios (P) as alternatives to bleaching clays. Evaluation of bleached crude ...
Coral Bleaching Independent of Photosynthetic Activity
Photosynthetic Activity Coral Bleaching
2015/12/11
The global decline of reef-building corals is due in part to
the loss of algal symbionts, or ‘‘bleaching,’’ during the
increasingly frequent periods of high seawater temperatures
[1, 2]. During ble...
Electron-Irradiation and Photo-Excitation Darkening and Bleaching of Yb Doped Silica Fibers: Comparison
Ytterbium Doped Silica Fibers Photodarkening Electron Irradiation
2013/1/30
We report a comparative experimental study of the attenuation spectra transformations for a series of Yb doped alumino-germano silicate fibers with different contents of Yb3+ dopants, which arise as t...
THE PEROXYMONOCARBONATE ANIONS AS PULP BLEACHING AGENTS. Part 2. MECHANICAL PULP BRIGHTENING AND EFFECTS OF METAL IONS
PEROXYMONOCARBONATE ANIONS PULP BLEACHING AGENTS
2010/10/25
The peroxymonocarbonate mono-anion (HCO4─) is generated in solutions containing bicarbonate anions (HCO3─) and hydrogen peroxide (H2O2). The mono-anion is believed to have a pKa value of ca. 10 and as...
THE PEROXYMONOCARBONATE ANIONS AS PULP BLEACHING AGENTS. PART 1. RESULTS WITH LIGNIN MODEL COMPOUNDS AND CHEMICAL PULPS
PEROXYMONOCARBONATE ANIONS BLEACHING AGENTS LIGNIN MODEL COMPOUNDS CHEMICAL PULPS
2010/10/25
The peroxymonocarbonate mono-anion (HCO4─) is generated when the bicarbonate anion is added to a H2O2 solution. The mono-anion is believed to have a pKa value of ca. 10 and as such would start dissoci...
EFFECT OF BIRCH KRAFT PULP PRIMARY FINES ON BLEACHING AND SHEET PROPERTIES
EFFECT BIRCH KRAFT PULP BLEACHING SHEET PROPERTIES
2010/10/25
By removing the primary fines from an oxygen-delignified mill birch pulp, a fiber fraction was obtained having low metals content and no extractives. After DEDeD bleaching the fiber fraction had somew...
Enzymatic pre-treatment of cotton. Part 2: Peroxide generation in desizing liquor and bleaching
enzymatic bleaching cotton glucose glucose oxidase peroxide whiteness
2009/6/17
The objective of this study was to utilise desizing liquors of starch-sized fabrics using glucoseoxidaseenzymes for bleach to produce hydrogen peroxide from glucose units of the starch removed; glucos...
Some Aspects of Palm Oil Bleaching with Activated Plantain Peel Ash
activated plantain peel ash bleaching adsorbent
2009/5/8
The present study seeks to investigate the bleaching of palm oil with activated plantain peel ash (APPA). Concentrations of β-carotene, iron, copper, lead, and phosphorus in the crude (unbleached) and...
The Effect of Bleaching Conditions on the Physical and Optical Properties During the Bleaching of CTMP with Peroxide
Bleaching Conditions Physical and Optical Properties CTMP Peroxide
2009/1/16
In order to determine the effect of bleaching conditions on the physical and optical properties of pulps during the bleaching of CTMP with H2O2, 48 bleaching trials were carried out. After the analys...
The Effects of Wood Bleaching Chemicals on The Surface Gloss and the Adhesion Strength of Varnishes
Wood Bleaching Chemicals Surface Gloss Adhesion Strength of Varnishes
2009/1/16
In this research, sodium hydroxide + hydrogen peroxide, sodium hydroxide + calcium hydroxide + hydrogen peroxide, hypochlorite and hydrochloric acid were applied to pine (Pinus sylvestris L), oriental...
The Effects of Chemicals for Using the Bleaching of the Wood Surfaces on the Layer Hardness of Varnish
Bleaching on the wood bleaching methods sodium hydroxide hydrogen peroxide calcium peroxide hypochlorite and hydrochloric acid and varnish
2009/1/15
The objective of this research was to determine the effects of sodium hydroxide + hydrogen peroxide, sodium hydroxide + calcium hydroxide + hydrogen peroxide, hypochlorite and hydrochloric acid applie...
The objective of this research was to determine colour changing proporties of sodium hydroxide + hydrogen peroxide, sodium hydroxide + calcium hydroxide + hydrogen peroxide, hypochlorite and hydrochlo...
The Effects of Wood Bleaching Chemicals on the Bending Strength of Wood
Wood Bleaching Chemicals Bending Strength of Wood
2009/1/15
The aim of this research was to determine the effects of bleaching chemicals on the bending strength of wood. For this purpose, sodium hydroxide + hydrogen peroxide, sodium hydroxide + calcium hydrox...
Effects of Bleaching and Impregnation Processes on the Hardness of the Varnish Layer in Beech Wood
Hardness bleaching process varnish impregnation Beech wood
2009/1/14
This study was performed to determine the effects of bleaching and impregnation processes on the hardness of the varnish layer in beech wood. For this purpose, samples were impregnated with Tanalith-C...
Alkaline Pulping and Bleaching of Acacia auriculiformis Grown in Bangladesh
Acacia auriculiformis pulp yield kappa number strength properties bleachability viscosity
2009/1/8
The physical, chemical, and morphological characteristics of Acacia auriculiformis were evaluated in terms of its suitability for papermaking. The fiber length (1.1 mm) of A. auriculiformis in this st...