نتایج جستجو برای: alkali catalyst
تعداد نتایج: 60055 فیلتر نتایج به سال:
Physicochemical properties of surimi and kamaboko obtained of solubility in acid, alkaline and conventional methods were compared. The results indicated that the highest protein recovery was related to solubility in acid, alkaline and conventional methods, respectively. The highest removal of lipid and myoglobin was observed by solubility in alkali. Excretion of total pigment and sulfhydryl gro...
INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ......... 582 ALKALI-CATION SELECTIVITY IN NONLIVING SySTEMS..... . . . . . . . . . . . . . . .. 583 ALKALI-CATION SELECTIVITY IN BIOLOGICAL SYSTEMS. . . . . . . . . . . . . . . . . . .. 587 THE ORIGIN OF ALKALI-CATION EQUILIBRIUM SELECTIVITY .. .. . .. . .... . " 589 ANION SELECTIVITY. . . • . . . . . ....
the properties of alkaline sulfite anthraquinone (as/aq) pulp from old corrugated container (occ)was studied. in each trial 100 grams (based on dry weigth) of occ and 18% active alkali was used.three levels of anthraquinone (0.0.1 and 0.2% based on dry weigth of the occ) and two pulpingtimes (120 and 150 minutes at maximum pulping temperature) were applied. pulping temperature,na2so3/naoh ratio...
Alkali atoms trapped in solid hydrogen matrices have demonstrated ultralong electron spin coherence times and are promising as quantum sensors. Their is limited by magnetic noise from naturally occurring orthohydrogen molecules the parahydrogen matrix. In gas phase, component of can be converted to flowing it over a catalyst held at cryogenic temperatures, with lower temperatures giving fractio...
Biodiesel is a promising alternative to fossil fuels and mainly produced from oils/fat through the (trans)esterification process. To enhance reaction efficiency simplify production process, various catalysts have been introduced for biodiesel synthesis. Recently, use of bio-derived has attracted more interest due their high catalytic activity ecofriendly properties. These include alkali catalys...
Carbon dioxide hydrogenation to synthetic fuels and value-added molecules has been lately proposed as a promising technology stabilize anthropogenic greenhouse gas emissions. Alkali compounds are often present in biomass pyrolysis/gasification syngas or can remain on the surface of catalyst upon its synthesis. Their presence conditions performance used CO2 reaction. This extends plasma-activate...
Greenwald and Lewman (1) described a method in which the protein and carbonic acid of blood are removed by picric acid, so that the alkali of the proteinates and bicarbonate is replaced by an equivalent of alkali picrate, which is measured. The picric acid precipitates the protein and frees the COZ, which is boiled off from the filtrate. The alkali picrate is measured as total picric acid minus...
The ingestion of calcium, along with alkali, results in a well-described triad of hypercalcemia, metabolic alkalosis, and renal insufficiency. Over time, the epidemiology and root cause of the syndrome have shifted, such that the disorder, originally called the milk-alkali syndrome, is now better described as the calcium-alkali syndrome. The calcium-alkali syndrome is an important cause of morb...
At ambient pressure there are 29 elemental superconductors in the periodic table, none of which is an alkali metal. The first alkali metal to become superconducting under high pressure is Cs followed years later by Li. Alkali metals are believed to be exemplary free-electron systems. The fact that an alkali metal becomes superconducting at all is surprising and is a result of the fact that unde...
Oat bran (OB) may be regarded as food industry by-product, with a high perspective bioresource in the production of high-value polyphenolic substances. On this basis, investigation presented herein aimed at (i) using 1- and 2-propanol organosolv treatment studying effect an alkali (sodium hydroxide) catalyst on releasing bound polyphenols, (ii) establishing models polyphenol recovery by employi...
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