Aluminum dihydrogen tripolyphosphate: Thermodynamic characteristics

Мацкевич, Н. И.; Wright, Adrian J.; Wolf, Th.; Vyazovkin, I. V.; Anyfrieva, Olga I.; Matskevich, M. Yu.

doi:10.1016/j.jct.2017.03.017

Cited by 5 publications

(2 citation statements)

References 16 publications

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“…Importantly, ATP is very environmentally-friendly. Since this environmental material has a layered structure, intercalation studies for ATP have been reported [6][7][8]. These studies showed that ATP can be used as the catalyst in organic reactions as a kind of solid acid proposing high Lewis acid degree and weak acid strength [9,10].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and kinetics of tributyl citrate using aluminum dihydrogen tripolyphosphate supported on modified activated carbon as catalyst

Yuan¹,

Liang²,

Huang³

et al. 2021

ScienceAsia

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The mechanism of synthesis process of tributyl citrate using aluminum dihydrogen tripolyphosphate supported on modified activated carbon as a catalyst was investigated by gas chromatography-mass spectrometry, and the kinetic equation was also studied. The results showed that the influence of internal diffusions was eliminated with the particle size smaller than 180 µm, but the influence of external diffusions was eliminated with the stirring speed higher than 450 r/min. The yield of 97% for tributyl citrate was achieved under the the following optimized condition: 1:4.2 of acid to alcohol, 8% of dosage of catalyst accounting for total reaction amount, 5 h of reaction time for water segregating and refluxing, and 150°C of reaction temperature. The apparent reaction activation energy was E a = 61.4 KJ/mol. The mechanism of this catalytic reaction was considered to be attributable to the fact that the steps of the esterification of citrate to produce both monobutyl citrate and dibutyl citrate were very fast, but the rate of the formation of tributyl citrate was slow. The control step of total reaction was the reaction between dibutyl citrate and n-butanol to produce tributyl citrate.

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Section: Introductionmentioning

confidence: 99%

Synthesis and kinetics of tributyl citrate using aluminum dihydrogen tripolyphosphate supported on modified activated carbon as catalyst

Yuan¹,

Liang²,

Huang³

et al. 2021

ScienceAsia

View full text Add to dashboard Cite

show abstract

“…ADTP has a multilayered configuration with the terminal hydroxyl groups connecting to PO 4 units. The hydroxyl groups protrude into the interlamellar region and form hydrogen bonds with the interlamellar water molecules which in turn hold the layers and structure together. , The presence of the terminal hydroxyl groups makes ADTP have strong acidity, and accordingly, in order to keep the long-term storage stability of the coating system, alkaline metal oxides were usually used to neutralize ADTP before ADTP was introduced into the system. However, not all alkaline metal oxides are suitable.…”

Section: Introductionmentioning

confidence: 99%

Effects of CaO and MgO on Anticorrosive Performance of Aluminum Dihydrogen Tripolyphosphate on Mild Steel

Song

Yang

et al. 2018

Ind. Eng. Chem. Res.

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CaO and MgO were used to neutralize aluminum dihydric tripolyphosphate (ADTP) by co-grinding, and the effects of CaO and MgO on anticorrosive performance of ADTP on mild steel were studied. The efficiency of the resulting multicomponent pigments as corrosion inhibitors for mild steel boards in 3.5% w/w NaCl solution was determined by electrochemical measurements. The results showed that the anticorrosive performance depended on the component of the pigments and the feeding order of ADTP, CaO, and MgO in grinding. ADTP/MgO/CaO displayed more high performance than others, which was attributed to the relatively integrated passivating film constructed on the surface of the test board. And the anticorrosion of waterborne epoxy coatings was effective and persistent.

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One-step crushing & cladding technology and enhanced anticorrosion activity of Zn3(PO4)2@AlH2P3O10 pigment

Xue

Tang

Yuan

et al. 2018

Journal of Alloys and Compounds

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Aluminum dihydrogen tripolyphosphate: Thermodynamic characteristics

Abstract: Aluminum dihydrogen tripolyphosphate: Matskevich, N. I.; Wright, Adrian; Wolf, Th.; Vyazovkin, I. V.; Anyfrieva, O. I.; Matskevich, M.

Cited by 5 publications

References 16 publications

Synthesis and kinetics of tributyl citrate using aluminum dihydrogen tripolyphosphate supported on modified activated carbon as catalyst

Synthesis and kinetics of tributyl citrate using aluminum dihydrogen tripolyphosphate supported on modified activated carbon as catalyst

Effects of CaO and MgO on Anticorrosive Performance of Aluminum Dihydrogen Tripolyphosphate on Mild Steel

One-step crushing & cladding technology and enhanced anticorrosion activity of Zn3(PO4)2@AlH2P3O10 pigment

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