Nanosilica modified with polyaspartic acid as an industrial circulating water scale inhibitor

AbstractGiven the special performance of nanosilica with its small size, large specific surface area and high surface activity, nanosilica containing reactive amino group (denoted as SiO2–NH2) and polysuccinimide were allowed to take part in polymerization reaction to afford SiO2–NH2 modified polyaspartic acid (denoted as SiO2–NH2/PASP), a potential polymer scale inhibitor with good water solubility for industrial circulating water. The scale inhibition performance of the as-prepared SiO2–NH2/PASP was evaluated by static scale inhibition test; and its scale inhibition mechanism was explored by means of scanning electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. Results indicated that SiO2–NH2/PASP exhibits excellent scale inhibition performance against CaSO4 and CaCO3 at very low concentrations (optimum scale inhibition rate of 100% and 68%, respectively), and the presence of 5 mg/L of SiO2–NH2/PASP greatly increases the inhibition efficiency of CaSO4 and CaCO3 scale by 21% and 53%, obviously higher than that of pure PASP.

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The synthesis of polyaspartic acid derivative PASP-Im and investigation of its scale inhibition performance and mechanism in industrial circulating water

RSC Advances ◽

10.1039/d0ra06592g ◽

2020 ◽

Vol 10 (55) ◽

pp. 33595-33601

Author(s):

Xinyu Guo ◽

Xiaowei Zhao ◽

Yanhua Xu ◽

Panpan Zhang ◽

Yamin Cheng ◽

...

Keyword(s):

Green Synthesis ◽

Acid Derivative ◽

Iminodiacetic Acid ◽

Scale Inhibitor ◽

Polyaspartic Acid ◽

Circulating Water ◽

Synthesis Route ◽

Scale Inhibition ◽

Inhibition Performance ◽

Performance And Mechanism

A polyaspartic acid derivative (PASP-Im) as a novel scale inhibitor was synthesized by a simple green synthesis route with polysuccinimide and iminodiacetic acid as the starting materials.

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Experimental study on scale inhibition performance of a green scale inhibitor polyaspartic acid

Science in China Series B Chemistry ◽

10.1007/s11426-008-0063-y ◽

2008 ◽

Vol 51 (7) ◽

pp. 695-699 ◽

Cited By ~ 21

Author(s):

ZhenHua Quan ◽

YongChang Chen ◽

XiuRong Wang ◽

Cheng Shi ◽

YunJie Liu ◽

...

Keyword(s):

Experimental Study ◽

Scale Inhibitor ◽

Polyaspartic Acid ◽

Scale Inhibition ◽

Inhibition Performance

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Research on the synthesis and scale inhibition performance of a new terpolymer scale inhibitor

Water Science & Technology ◽

10.2166/wst.2015.635 ◽

2015 ◽

Vol 73 (7) ◽

pp. 1619-1627 ◽

Cited By ~ 6

Author(s):

Yufei Bao ◽

Meng Li ◽

Yanqing Zhang

Keyword(s):

Calcium Carbonate ◽

Polymerization Reaction ◽

Molar Ratio ◽

Scale Inhibitor ◽

Sodium Styrene Sulfonate ◽

Scale Inhibition ◽

High Conversion Rate ◽

Infrared Spectrometer ◽

Chelating Ability ◽

Inhibition Performance

A new terpolymer named β-CD-MA-SSS was produced using free-radical polymerization of β-cyclodextrin (β-CD), maleic-anhydride (MA) and sodium-styrene-sulfonate (SSS) as monomers, with potassium persulfate (KPS) as initiator. Its performance as a scale inhibitor to prevent deposition of calcium carbonate (CaCO3) has been investigated. Experimental results demonstrated that β-CD-MA-SSS performed excellent scale inhibition and exhibited a high conversion rate under the following conditions: initiator consisting of 6%, molar ratio of reaction monomers SSS:MA = 0.8:1, MA:β-CD = 6:1, reaction temperature of 80 °C, reaction time of 6 h, and dropping time of 40 min when MA was dosed as a substrate, and SSS and KPS were dosed as dropping reactants simultaneously. Use of a Fourier transform infrared spectrometer for this inhibitor showed that the polymerization reaction had taken place with the reaction monomers under the above specified conditions. Scanning electron microscopy indicated that the β-CD-MA-SSS had a strong chelating ability for calcium (Ca2+) and a good dispersion ability for calcium carbonate (CaCO3).

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Research Progress of Scale Inhibition Mechanism

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.955-959.2411 ◽

2014 ◽

Vol 955-959 ◽

pp. 2411-2414 ◽

Cited By ~ 4

Author(s):

Li Xiu Liu ◽

Ai Jiang He

Keyword(s):

Metal Surface ◽

Inorganic Salt ◽

Simulation Technique ◽

Research Progress ◽

Inhibition Mechanism ◽

Scale Inhibitor ◽

Scale Inhibition

Scale inhibitor is a medicament which has the properties of dispersing insoluble inorganic salt in water, and preventing or obstructing sediment and scaling of insoluble inorganic salt on metal surface. Research on the mechanism of scale inhibition can promote using and developing scale inhibitors. In this paper, the traditional macroscopic mechanism of scale inhibition was firstly analyzed, and it was also emphasized to introduce the research progress of quantization simulation technique on the mechanism of scale inhibition, and it was also suggested to combine the microstructure of scale crystal with quantization simulation technique to have a further study on the mechanism of scale inhibition.

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Study on Scale Inhibition Performance of Polyaspartic Acid Derivatives with Dihydroxyl Group on CaCO3

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.361-363.1982 ◽

2011 ◽

Vol 361-363 ◽

pp. 1982-1986 ◽

Cited By ~ 1

Author(s):

Li Jun Fu ◽

Yu Zeng Zhao ◽

Hong Hua Ge ◽

Yong Sheng Li

Keyword(s):

Aqueous Solution ◽

Cooling Water ◽

Ftir Spectrum ◽

Polyaspartic Acid ◽

Environment Friendly ◽

Scale Inhibition ◽

Inhibition Performance

An environment-friendly and multifunctional agent for industry circulation cooling water, polyaspartic acid derivatives with dihydroxyl group(DHPAP) was synthesized in aqueous solution. The FTIR spectrum of DHPAP was analyzed. Static experiments were carried out to validate scale inhibition performance of DHPAP. The scale inhibition ratios exceed 90% when 8 and 10 mg/L DHPAP under solution temperatures of 80 and 60°C, respectively. The scale inhibition ratios increase by increasing the DHPAP concentration with 6 and 8 mg/L under heating times of 10 and 6h, respectively. And the scale inhibition ratios are over 90%.

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Scale inhibitors with a hyper-branched structure: preparation, characterization and scale inhibition mechanism

RSC Advances ◽

10.1039/c6ra21091k ◽

2016 ◽

Vol 6 (95) ◽

pp. 92943-92952 ◽

Cited By ~ 6

Author(s):

Henghui Huang ◽

Qi Yao ◽

Hualin Chen ◽

Bailing Liu

Keyword(s):

Inhibition Efficiency ◽

Water Bodies ◽

Inhibition Mechanism ◽

Industrial Water ◽

Scale Inhibitor ◽

Phosphorus Pollution ◽

Scale Inhibition ◽

New Type ◽

Branched Structure

In order to improve the scale inhibition efficiency of existing scale inhibitors for industrial water and to reduce the phosphorus pollution of water bodies, a new type of scale inhibitor with a hyper-branched structure has been developed.

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The Application of Green-Synthesis-Derived Carbon Quantum Dots to Bioimaging and the Analysis of Mercury(II)

Journal of Analytical Methods in Chemistry ◽

10.1155/2019/8183134 ◽

2019 ◽

Vol 2019 ◽

pp. 1-9 ◽

Cited By ~ 3

Author(s):

Qianchun Zhang ◽

Xiaolan Zhang ◽

Linchun Bao ◽

Yun Wu ◽

Li Jiang ◽

...

Keyword(s):

Quantum Dots ◽

Hela Cells ◽

Photoelectron Spectroscopy ◽

Water Solubility ◽

Limit Of Detection ◽

Carbon Quantum Dots ◽

Coefficient Of Determination ◽

Serum Samples ◽

X Ray ◽

Transmission Electron

Ginkgo leaves were used as precursors for the hydrothermal synthesis of carbon quantum dots (CQDs), which were subsequently characterized by transmission electron microscopy as well as Fourier-transform infrared, X-ray powder diffraction, and X-ray photoelectron spectroscopy. The prepared CQDs exhibited a fluorescence quantum yield of 11% and superior water solubility and fluorescence stability, as well as low cytotoxicities and excellent biocompatibilities with A549 and HeLa cells; these CQDs were also used to bioimage HeLa cells. Moreover, owing to the experimental observation that Hg2+ quenches the fluorescence of the CQDs in a specific and sensitive manner, we developed a method for the detection of Hg2+ using this fluorescence sensor. The sensor exhibited a linear range for Hg2+ of 0.50–20 μM, with an excellent coefficient of determination (R2 = 0.9966) and limit of detection (12.4 nM). In practice, the proposed method was shown to be highly selective and sensitive for the monitoring of Hg2+ in lake water and serum samples.

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Study on corrosion and scale inhibition mechanism of polyaspartic acid grafted β-cyclodextrin

Materials Letters ◽

10.1016/j.matlet.2019.127276 ◽

2020 ◽

Vol 264 ◽

pp. 127276 ◽

Cited By ~ 6

Author(s):

Luoping Fu ◽

Jie Lv ◽

Lu Zhou ◽

Zhida Li ◽

Mingjin Tang ◽

...

Keyword(s):

Inhibition Mechanism ◽

Polyaspartic Acid ◽

Scale Inhibition

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Formation and Mitigation of BaSO4 Scale in Oil Fields

Materials Science Forum ◽

10.4028/www.scientific.net/msf.814.278 ◽

2015 ◽

Vol 814 ◽

pp. 278-285

Author(s):

Ming Zhu ◽

Cheng Qiang Ren ◽

Yuan Yuan Meng ◽

Li Liu ◽

Yun Ping Zheng

Keyword(s):

Inhibition Efficiency ◽

Oil Fields ◽

Scale Inhibitor ◽

Conductivity Method ◽

Environment Friendly ◽

Scale Inhibition ◽

Negative Role ◽

Corrosion Inhibition Efficiency ◽

Effects Of Temperature ◽

Inhibition Performance

The deposition of BaSO4scale is always found in the oilfield. It is difficult to be removed. Therefore, it plays a negative role to the production. The effects of temperature and water chemistry on BaSO4scale have been investigated by using the conductivity method in this work. An environment-friendly copolymer was prepared to control the scaling of BaSO4. The copolymer was proved by static scale inhibition method, and weight-loss test that it has excellent scale inhibition performance and corrosion inhibition efficiency. Furthermore, FTIR spectra was used to prove that the scale inhibitor was polyepoxysuccinic acid (PESA).

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