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1

Isolation of Bacteria from Drill Cuttings, their Identification and Assessment of Destructive Potential

Chernykh Elena G.

Journal of Ecological Engineering

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2022

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Vol. 23, nr 4

155--163

EN

The drilling of any oil and gas well is accompanied by the use of drilling fluids consisting of chemical reagents and materials of varying degrees of environmental hazard. The existing drilling waste disposal technologies are expensive, energyand labor-intensive, and do not always contribute to the formation of environmentally friendly compounds. In this regard, the possibility of using destructor microorganisms capable of growing and exhibiting biochemical activity under the conditions of complex pollution, in an environment with a high content of hydrocarbons, surfactants and polymer additives capable of biodegrading these substances, is relevant. In connection with the foregoing, the search for new strains of bacteria for the disposal of drilling waste, which are resistant to the conditions of complex toxic effects of drill cuttings components and, at the same time, capable of providing a significant degree of detoxification of the reagents that are part of hydrocarbon-based solutions, is relevant.

2

Improving spodumene flotation using a mixed cationic and anionic collector

Wang Y., Zhu G., Yu F., Lu D., Wang L., Zhao Y., Zheng H.

Physicochemical Problems of Mineral Processing

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2018

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Vol. 54, iss. 2

567--577

EN

Lithium, a rare-earth element, has been in increasing demand. Spodumene flotation is an important and challenging step for lithium extraction and production from lithium ore. In the present work, flotation tests for three pure minerals (i.e., spodumene, quartz and feldspar) and a real spodumene ore were carried out at laboratory scale. The results showed that YOA, a mixture of oleic acid and dodecylamine with the molar ration of 10:1, could be used as collector to produce a spodumene concentrate with grade of 5.59% Li2O from the feed ore with grade of 1.48% Li2O where 85.24% of Li2O was recovered to the concentrate. The measured zeta potential, contact angle and adsorption capacity indicated that YOA was preferentially adsorbed on spodumene instead of on quartz or feldspar, with the spodumene surface being more hydrophobic than that of feldspar or quartz. The adsorption energies of YOA on spodumene were calculated and the results provided insights into the superior flotation performance obtained in the present work.

3

Synteza oraz właściwości powierzchniowe kationowych surfaktantów gemini

Kuliszewska E., Poźniak B. P., Hordyjewicz-Baran Z.

Przemysł Chemiczny

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2013

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T. 92, nr 3

331-335

4

Influence of adsorption of n-alkyltrimethylammonium bromides (C8, C12, C16) and bubble motion on kinetics of bubble attachment to mica surface

Niecikowska A., Zawala J., Malysa K.

Physicochemical Problems of Mineral Processing

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2011

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Vol. 47

237-248

EN

Influence of adsorption of n-alkyltrimethylammonium bromides (C8, C12, C16) and formation of motion induced dynamic architecture of adsorption layer (DAL) over surface of the colliding bubble on kinetics of three-phase contact (TPC) formation at mica surface was studied. The dynamic phenomena occurring during the bubble collisions were monitored using a high-speed camera of frequency 1040 Hz. The effect of solution concentration and the DAL formation, due to the bubble motion, was determined. It was showed that stability of the wetting film formed between the colliding bubble and mica surface was governed by the electrostatic interactions between the film interfaces. It was found that when the distance covered by the bubble (i.e. the distance between the capillary and the mica surface) was L=3 mm (location "close") then the time of the three phase contact formation (tTPC), was significantly shorter than for the L=100 mm (location "far"). The differences between the tTPC for the locations "close" and "far" were the largest at lowest concentration. The mechanism responsible for significant differences in the tTPC values for the location "close" and "far" is described.

PL

Badano wpływ adsorpcji n-alkilotrimetyloamoniowych bromków (C8, C12, C16) oraz utworzenia na powierzchni pęcherzyka, ruchem indukowanej dynamicznej architektury warstwy adsorpcyjnej (DAL), na kinetykę powstawania kontaktu trójfazowego (TPC) na powierzchni miki. Zjawiska zachodzące podczas kolizji pęcherzyka były rejestrowane przy użyciu szybkiej kamery o częstotliwości 1040 Hz. Określono wpływ stężenia roztworów i utworzenia DAL na kinetykę powstawania TPC. Wykazano, że stabilność ciekłego filmu, powstającego w trakcie kolizji pomiędzy pęcherzykiem a powierzchnią miki, jest determinowana przez siły elektrostatyczne pomiędzy granicami faz, które tworzą ciekły film. Kiedy pęcherzyk pokonywał odległość (od kapilary do powierzchni miki) L=3 mm (lokalizacja "blisko") czas powstawania kontaktu trójfazowego był znacznie krótszy, w porównaniu z odległością L=100 mm ("daleko"). Różnice obserwowane dla L=3 mm i L=100 mm wzrastały wraz ze zmniejszeniem stężenia. Przedstawiono mechanizm wyjaśniający znaczące różnice w czasie powstawania kontaktu trójfazowego dla położenia "blisko" i "daleko"

5

Sorption of the Surfactant Hyamine in Soils

Muszyński P.

Ecological Chemistry and Engineering. A

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2011

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Vol. 18, nr 9-10

1301-1312

EN

A study was performed on the sorption of hyamine 1622, a cationic surfactant, from water solutions in 3 soils which, with relation to the character of their parent rocks, are referred to in this paper as a sandy soil, a loess soil and a loamy soil, respectively. The sorption process was executed with the static method: 2-gram weighed portions of soil were placed in polyethylene test tubes, adding 10 cm3 of solution with hyamine concentration in the range from 0.00015 to 0.006 mol dm–3, and then shaken for 6 hours. The level of sorption of hyamine was determined with relation to the concentration and pH of the initial solution, to the time of soil-solution contact, and in the presence of electrolytes KCl and KNO3 in the surfactant-electrolyte systems = 1 : 1 and 1 : 10. The experiments showed that with increase in the concentration of the initial solution there was an increase of hyamine sorption in the soils. It was established that the affinity sequence of the studied soils with relation to hyamine was as follows: loamy soil > loess soil > sandy soil. With increase in the pH value only slight changes were observed in the sorption effectiveness in the sandy and loess soils, while in the loamy soil the sorption remained at a constant level. Kinetic tests revealed that in the sandy and loess soils the sorption proceeded the fastest during the initial 15 minutes, and extension of the time of the soil-solution contact to 720 minutes did not produce any notable changes in the level of the sorption. In the loamy soil hyamine sorption at the level of 100 % was observed irrespective of the time of contact of the solution with the soil. The sorption process proceeded in accordance with the mechanism of pseudo second-order reaction. The presence of electrolyte caused both a reduction and an increase in the sorption of hyamine in the sandy and loess soils, but the extent of the changes was related to the type of electrolyte and to the concentration of the surfactant. Electrolyte addition had no effect on hyamine sorption in the loamy soil.

PL

Badano sorpcję hiaminy 1622, kationowego surfaktantu, z wodnych roztworów w 3 glebach, które ze względu na charakter skał macierzystych, nazwano w pracy odpowiednio glebą piaszczystą, lessową i gliniastą. Proces sorpcji prowadzono metodą statyczną: do probówek z polietylenu odważano 2 g gleby i dodawano 10 cm3 roztworu o stężeniu hiaminy w zakresie od 0,00015 do 0,006 mol dm-3, a następnie wytrząsano przez 6 godz. Określono wielkość sorpcji hiaminy w zależności od stężenia i pH roztworu wyjściowego, czasu kontaktu gleba - roztwór oraz w obecności elektrolitów KCl i KNO3 w układach surfaktant-elektrolit = 1 : 1 i 1 : 10. Badania wykazały, że ze wzrostem stężenia roztworu wyjściowego następowało zwiększenie sorpcji hiaminy w glebach. Ustalono, że szereg powinowactwa badanych gleb względem hiaminy układał się następująco: gleba gliniasta > gleba lessowa > gleba piaszczysta. Wraz ze wzrostem pH obserwowano niewielkie zmiany efektywności sorpcji w glebie piaszczystej i lessowej, natomiast w glebie gliniastej sorpcja utrzymywała się na stałym poziomie. Badania kinetyczne wykazały, że w glebie piaszczystej i lessowej sorpcja zachodziła najszybciej w ciągu pierwszych 15 min, a wydłużenie czasu kontaktu gleba-roztwór do 720 min nie powodowało wyraźnych zmian w poziomie sorpcji. W glebie gliniastej stwierdzono 100 % stopień sorpcji hiaminy niezależnie od czasu kontaktu roztworu z glebą. Proces sorpcji zachodził zgodnie z mechanizmem reakcji pseudodrugiego rzędu. Obecność elektrolitu powodowała zarówno zmniejszenie, jak i zwiększenie sorpcji hiaminy w glebie piaszczystej i lessowej, ale w stopniu zależnym od rodzaju elektrolitu oraz stężenia surfaktantu. Dodatek elektrolitu nie wpływał na sorpcję hiaminy w glebie gliniastej.

6

Investigation of nitrobenzene liquid membrane oscillator containing benzyldimethyltetradecylammonium chloride

Szpakowska M., Płocharska-Jankowska E.

Ars Separatoria Acta

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2007

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No. 5

7-18

EN

The oscillatory behaviour of a nitrobenzene liquid membrane oscillator containing benzyldimethyltetradecylammonium chloride was investigated in order to recognize the oscillation mechanism. The influence of temperature and electrode distances from the interfaces as well as the donor, membrane and acceptor phase composition on the changes of electric potential difference between aqueous phases was examined. The effect of the surfactant structure on the oscillation characteristics was discussed. It was shown that the appearance of oscillations requires the simultaneous presence of surfactant, picric acid and ethanol in the system. The mechanism of oscillations in this system should be similar as the one in an oscillator containing hexadecyltrimethylammonium bromide where oscillations of electric potential difference between the two aqueous phases are produced by sudden adsorption and desorption of the surfactant and the ionic pair: a surfactant-picric anion at the a/m interface. The diffusion fluxes of all these species in the vicinity of a/m interface also play an important role. They might couple, which leads to the nonlinear behaviour of the system. The oscillation curves obtained for the liquid membrane oscillator with benzyldimethyltetradecylammonium chloride and different taste substances were analyzed by the construction of the corresponding attractors in two-dimensional space using the time delay method. Each system has its own attractor differing in shape and surface. Therefore, these properties might be used for identifying an unknown taste substance present in the acceptor phase.

7

Cation Size Effects in Swelling of the Layered Zeolite Precursor MCM-22-P

Roth W.

Polish Journal of Chemistry

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2006

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Vol. 80, nr 5

703-708

EN

The chemistry and apparent cation size effects associated with swelling of the layered precursor of zeolite MCM-22 are discussed in detail and rationalized. The swelling is achieved with a custom made solution, hexadecyltrimethylammonium hydroxide (CTMA-OH) due to combination of high pH and adsorption of the cation on the surface. Alternative swelling mixtures comprising surfactant chloride (CTMA-Cl) and another base, i.e. Na or tetraalkylammonium hydroxide (alkyl = methyl, ethyl, propyl) have been tried. Swelling occurred only with the tetrapropylammonium base indicating competition between CTMAand the accompanying cation. Tetrapropylammonium cation (TPA) size appeared greater (i.e. ~ 9 in diameter) than the spacing between silanol groups (8.2 ) on the surface, which made it less effective in competition with the surfactant cations for electrostatic attachment to the surface.

8

Synthesis and the anti-microbial activity of multiple quaternary ammonium chlorides

Węgrzyńska J., Chlebicki J., Maliszewska I.

Polish Journal of Chemical Technology

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2006

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Vol. 8, nr 2

59-61

EN

A series of new cationic surfactants, bis-quaternary ammonium and tris-quaternary ammonium chlorides, were prepared from N,N-dimethyldodecylamine and a product of the reaction of epichlorohydrin with ethyl-, propyl-, butyl-, pentyl-, hexyl- and octylamine (in the case of bis-ammonium salts) or hydrochloride of diethyl-, dipropyl-, dibutyl or dihexylamine (in the case of tris-ammonium salts). All these surfactants have good water solubility and low critical micelle concentrations of more than one order of magnitude lower than these of corresponding mono-alkylammonium salts. The anti-microbial activity against bacteria: S. aureus, B. subtilis, E. coli, S. marcescens and yeasts: R. rubra and C. albicans was determined. Many of these compounds showed anti-microbial activities against gram-positive bacteria and yeast, but they were not active against gram-negative bacteria.

9

Colour reaction of iron(III) with phenylfluorone in the presence of Triton X-100 and quaternary ammonium salts and its analytical application

Winkler W., Buhl F., Arenhövel-Pacuła A.

Chemia Analityczna

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2004

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Vol. 49, No. 3

327-337

EN

Spectrophotometric determination of iron(III) utilizing the reaction with phenylfluorone (PF) in the presence of Triton X-100 and quaternary ammonium salts: cetylpyridinium chloride (CP), hexadecyltrimethylammonium chloride (CTA), dodecyltrimethylammonium bromide (DTA), benzyldimethyltetradecylammonium chloride (zeph) has been elaborated. Optimum concentrations of PF, Triton X-100 and cationic surfactants, the sequence of reagents addition and pH were estimated. Calibration plots for spectrophotometric determination of Fe(III) were constructed for the studied multi-component systems. It was found that the sensitivity of the elaborated methods depends on the chemical structure of cationic surfactants, mainly on the length of the alkyl chain in the quaternary ammonium salt molecule. According to the measured absorptivity solubilizing properties of the surfactants used increase in the following order: CTA > CP > zeph > DTA. The most sensitive method (Fe-PF-CTA-Triton X-100, e = 1.51 × 105 L mol-1 cm-1) has been applied to the determination of iron in various milk samples and milk substituting preparations.

PL

Opracowano spektrofotometryczne metody oznaczania Fe(III) w oparciu o reakcję z fenylo-fluoronem (FF) w obecności Tritonu X-100 i czwartorzędowych soli amoniowych: chlorku cetylopirydyniowego (CP), chlorku heksadecylotrimetyloamoniowego (CTA), bromku dode-cylotrimetyloamoniowego(DTA), chlorku benzylodimetylotetradecyloamoniowego (ze firo-amina). W celu uzyskania maksymalnej absorbancji zoptymalizowano stężenia FF, Tritonu X-100, kationowych surfaktantów, kolejność dodawania odczynników i zakres pH. Dla spektrofotometrycznych oznaczeń Fe(lll) w badanych układach wieloskładnikowych wykreślono krzywe wzorcowe. Stwierdzono, że czułość opracowanych metod zależy od struktury kationowych surfaktantów, a przede wszystkim od długości łańcucha alkilowego w cząsteczce czwartorzędowej soli amoniowej. Na podstawie uzyskanych molowych współczynników absorpcji można założyć, że właściwości solubilizujące użytych surfaktantów wzrastają w następującym porządku: CTA > CP > zef. >DTA. Najbardziej czułą metodę (Fe-FF-Tr.X-100-CTA, Epsilon = 1.51 x 105 L mol(-1) cm(-1) zastosowano do oznaczania Fe w mleku i preparatach zastępujących mleko.

10

On the mechanism of oscillations in three-phase system containing cationic surfactant and nitrobenzene liquid membrane

Szpakowska M.

Ars Separatoria Acta

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2004

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No. 3

98-104

EN

Oscillations of electrochemical potential difference between donor and acceptor aqueous phases of nitrobenzene oscillator containing hexadecyltrimethylammonium bromide were observed. It was shown that this potential difference is composed of two–phase boundary potentials between a membrane and an appropriate aqueous phase. It appears that oscillations occur at an aqueous acceptor/membrane interface. They are caused by adsorption/desorption processes of surfactant ions pairs with bromide or picrate followed by their transfer to the acceptor phase. The processes taking part in three stages of oscillation mechanism were suggested.

11

Spectrophotometric investigations of nitrobenzene liquidmembrane oscillator with hexadecyltrimethylammonium bromide

Szpakowska M., Czaplicka I.

Ars Separatoria Acta

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2003

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No. 2

64-70

EN

The oscillations of electrochemical potential difference between aqueous phases of a liquid membrane oscillator containing cationic surfactant are presented. By UV-VIS spectroscopy, the concentrations of liquid membrane components (nitrobenzene and picric acid) in the both aqueous phases were established during the oscillation process. It was shown that nitrobenzene molecules are transferred to the aqueous phases from the beginning of that dynamic process. Picric acid molecules are not observed in the donor phase, meanwhile, from the beginning of the process they are transported to the acceptor phase. It can be concluded that the transport of the liquid membrane components to the aqueous phases is not responsible for the observed oscillations of electrochemical potential difference.

12

The mechanism of L-arginine oxidation by quinquevalent vanadium in the presence of cationic surfactant in sulphuric acid media. A kinetic study

Dubey S., Pandey A.

Bulletin of the Polish Academy of Sciences. Chemistry

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2001

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Vol. 49, No. 2

183-191

EN

The oxidation is first order each in [substrate] and the [oxidant]. The reaction follows an acid catalysed path, exhibiting second order dependence in [H+]. Bunnett's plot indicates that water acts as a nucleophile. Protonated form of oxidant has been postulated as the reacting oxidizing species. The rate studied at four different temperatures enabled us to calculate activation parameters. A suitable mechanism has been proposed.

13

Effects on the micellar Solubilization of Organic Compounds by Surfactant Micelles : II. Nature and Position of Substituent Groups in Aromatic Acids

Higazy W., Mahmoud F.

Polish Journal of Chemistry

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1999

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Vol. 73, nr 9

1555-1562

EN

The semiequilibrium dialysis method has been used to determine the quilibrium of solubilization of o-, m- and p-toluic acids in micelles of the cationic surfactant 1-hexadecylpyridinium chloride (CPC) in 0.1 M HCl, in a range of concentrations of the toluic acids and surfactant. Apparent solubilization constants, K, of the neutral acids have been correlated with mole fractions XA of the acid in the micelle.