Study on the Polyaspartic Acid Derivative Synthesis and the Scale Inhibition Performance of Calcium Carbonate

Intermediate vector polysuccinimide (PSI) was prepared by polymerization of malefic acid and ammonia at 180°Cin this article. Hydrophilic polyaspartic acid (PASP) derivative was prepared from amino-sulfonic and PSI; Lipophilic PASP derivative was prepared from PSI and diisopropylamine. Their scale inhibition rates of calcium carbonate were evaluated by static scale experiments. The inhibition rate of calcium carbonate was 90.2% when n(amino-sulfonic): n(PSI) =1:14 and the dosage of pharmaceutical was 12mg / L. The inhibition rate of calcium carbonate was 87.6% when n(diisopropylamine):n(PSI)=1:8 and the dosage of pharmaceutical was 15mg /L. The calcium carbonate that collected from static state experiments was analysised by scanning electron microscope (SEM). The results showed that polyaspartic acid derivatives were synthesized which had the best overall performance when n (amino-sulfonic): n (PSI) = 1:14.

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Synthesis and Properties of the ESA/AMPS Copolymer

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.164.194 ◽

2012 ◽

Vol 164 ◽

pp. 194-198 ◽

Cited By ~ 2

Author(s):

Zhan Liu ◽

Xin Wang ◽

Zhen Fa Liu

Keyword(s):

Calcium Carbonate ◽

Calcium Phosphate ◽

Succinic Acid ◽

Ferric Oxide ◽

Sulfonic Acid ◽

Inhibition Rate ◽

Biodegradation Rate ◽

Scale Inhibition ◽

Inhibition Performance ◽

Better Than

A copolymer was prepared from epoxy succinic acid (ESA) and 2-acrylamido-2-methyl propane sulfonic acid (AMPS). The structure of the ESA/AMPS copolymer was characterized by means of FTIR. The performances of scale inhibition, dispersion and biodegradability of the ESA/AMPS copolymer were studied. The results showed that the scale inhibition performance of the ESA/AMPS copolymer on calcium phosphate and dispersing performance on ferric oxide were much better than PESA. The scale inhibition rate on calcium carbonate was 85% when the ESA/AMPS copolymer was 8mg/L. The scale inhibition rate on calcium phosphate was 65% when the ESA/AMPS copolymer was 30mg/L. The ESA/AMPS copolymer had good biodegradation performance and biodegradation rate could reach 65% after 28 days.

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Study on the Polyaspartic Acid Derivative Synthesis and the Scale Inhibition Performance of Calcium Carbonate

Advances in Intelligent and Soft Computing - Proceedings of the 2011 International Conference on Informatics, Cybernetics, and Computer Engineering (ICCE2011) November 19–20, 2011, Melbourne, Australia ◽

10.1007/978-3-642-25194-8_93 ◽

2011 ◽

pp. 795-801

Author(s):

Ruokun Jia ◽

LiYing Zhen ◽

Juan Luo

Keyword(s):

Calcium Carbonate ◽

Acid Derivative ◽

Polyaspartic Acid ◽

Scale Inhibition ◽

Inhibition Performance

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Study on Scale Inhibition Performance of Modified Polyaspartic Acid

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.893.7 ◽

2014 ◽

Vol 893 ◽

pp. 7-10 ◽

Cited By ~ 3

Author(s):

Yu Hua Gao ◽

Zhen Fa Liu ◽

Li Hui Zhang ◽

Yun Juan Wu

Keyword(s):

Cooling Water ◽

Water Systems ◽

Solution Temperature ◽

Inhibition Rate ◽

Polyaspartic Acid ◽

Scale Inhibition ◽

Dynamic Experiments ◽

Treatment Experiment ◽

Good Scale ◽

Inhibition Performance

Static and dynamic experiments were used to evaluate scale inhibition performance of modified polyaspartic acid (PASP-ASP). The static experiments showed that the PASP-ASP had good scale inhibition performance and the scale inhibition rate exceeded 98% when the PASP-ASP was 2 mg·L-1 and the solution temperature was 40 OC. In the dynamic experiments, almost no scale was formed on the heat transfer surface and the fouling thermal resistance decreases extraordinarily with PASP-ASP treatment experiment compared with the experiment without treatment. The PASP-ASP could be used in industrial cooling water systems.

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Synthesis of New Phosphate and the Evaluation as Scale Inhibitor in Oilfield

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.814.493 ◽

2019 ◽

Vol 814 ◽

pp. 493-498

Author(s):

Ren Jun Xu ◽

Hua Lei He ◽

Jing Wang ◽

Hai Peng Hui ◽

Qiao Na Liu

Keyword(s):

Calcium Carbonate ◽

Phosphonic Acid ◽

Synthesis Method ◽

Normal Growth ◽

Inhibition Rate ◽

Scale Inhibitor ◽

Composite Scale ◽

Scale Inhibition ◽

Ph Range ◽

Inhibition Performance

Compared with inorganic phosphonates, organic phosphonates have better chemical stability in water treatment, and are not easy to hydrolyze in higher temperature and wider pH range. In this paper, a one-step synthesis method of ethylene diamine tetra (methylene phosphonic acid) sodium (EDTMPS) and methylene phosphonic acid (DTPMPA) were studied. A new phosphate scale inhibitor was prepared and its scale inhibition performance was evaluated. The results showed that the scale inhibition rate increased with the increase of the concentration of synthetic products (EDTMPS, DTPMPA). At the same concentration, compared with DTPMPA, EDTMPS has better scale inhibition performance, and the maximum scale inhibition rate can reach 96.85%. The scale inhibition performance of composite scale inhibitor is better than that of single scale inhibitor, and the scale inhibition rate of the synthesized products can reach more than 90% after compounding. And inhibitory mechanism has been proposed: Because phosphonates effectively control the rate of nucleation. In addition, polyphosphonates can chelate Ca2+, Mg2+ plasma to form monocyclic or bicyclic chelates. This will destroy the normal growth process of calcium carbonate and other crystals, thus preventing the formation of calcium carbonate scale.

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Study on Performance of Scale and Corrosion Inhibition of Polyaspartic Acid Composite Material

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.233-235.50 ◽

2011 ◽

Vol 233-235 ◽

pp. 50-53 ◽

Cited By ~ 2

Author(s):

Zhen Fa Liu ◽

Han Shuo Liu ◽

Li Hui Zhang ◽

Mei Fang Yan

Keyword(s):

Composite Material ◽

Calcium Carbonate ◽

Acrylic Acid ◽

Corrosion Inhibition ◽

Itaconic Acid ◽

Tricarboxylic Acid ◽

Inhibition Rate ◽

Polyaspartic Acid ◽

Scale Inhibition ◽

Acrylic Ester

Polyaspartic acid (PASP) composite material, a scale and corrosion inhibitor, is prepared from PASP, acrylic acid-acrylic ester- itaconic acid tripolymer (IA-AA-AE) and 2-phosphonobutane- 1,2,4-tricarboxylic acid (PBTCA). The scale inhibition effects of PASP and PASP composite are investigated. Calcium carbonate crystals in scale samples are characterized by means of SEM. Experimental results show that the scale inhibition rate can reach 98.7 % and corrosion inhibition rate 96.5 % under the conditions of Ca2+ 639 mg.L-1 and PASP composite material 40 mg.L-1. SEM results show that calcite and aragonite can be transformed into vaterite completely by using PASP composite material.

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Synthesis, Characterization and Properties of the IA / SAS Copolymer

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.423-426.404 ◽

2013 ◽

Vol 423-426 ◽

pp. 404-407

Author(s):

Zhen Fa Liu ◽

Hao Lin Fu ◽

Li Hui Zhang ◽

Yan He Zhang ◽

Xuan Liu

Keyword(s):

Calcium Carbonate ◽

Calcium Phosphate ◽

Itaconic Acid ◽

Inhibition Rate ◽

Biodegradation Rate ◽

Scale Inhibition ◽

Good Scale

A copolymer was prepared from itaconic acid (IA) and sodium allysulfonate (SAS). The structure of the IA/SAS copolymer was characterized by the means of FTIR. The performances of scale inhibition, dispersion and biodegradability of the IA/SAS copolymer were studied. The results showed that the IA/SAS copolymer had good scale inhibition and dispersing performance. The scale inhibition rate on calcium carbonate was 93% when the copolymer was 20 mg·L-1. The scale inhibition rate on calcium phosphate was 92% when the copolymer was 24 mg·L-1. The copolymer had good biodegradation performance and biodegradation rate could reach 69.5% after 28 days.

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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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REMINERALIZATION EFFECT OF POLYASPARTIC ACID IN THE POLYMER-INDUCED LIQUID PRECURSOR PROCESS ON THE INTRAFIBRILLAR DENTIN (SCANNING ELECTRON MICROSCOPE AND ENERGY DISPERSIVE X-RAY ANALYSIS)

International Journal of Applied Pharmaceutics ◽

10.22159/ijap.2020.v12s2.op-46 ◽

2020 ◽

pp. 45-48

Author(s):

RIVANTI IRMADELA DEVINA ◽

ADELINE CLARISSA ◽

NILAKESUMA DJAUHARIE ◽

KAMIZAR NAZAR ◽

RATNA MEIDYAWATI

Keyword(s):

Electron Microscope ◽

Scanning Electron Microscope ◽

Energy Dispersive ◽

Control Group ◽

Polyaspartic Acid ◽

Liquid Precursor ◽

X Ray ◽

Demineralized Dentin ◽

Scanning Electron

Objective: This study aims to analyze remineralization that occurred in demineralized dentin following polyaspartic acid (pAsp) in PILP immersion.Methods: Sixteen dentin block samples were immersed in demineralized solution. The samples were divided into controls (no pAsp immersion) orpAsp immersion for 3, 7, or 14 days (n’s=4). The samples were evaluated using a scanning electron microscope (SEM) to observe morphology andenergy-dispersive X-ray (EDX) to observe calcium and phosphate levels.Results: SEM revealed that pAsp immersion resulted in significantly higher dentin remineralization compared to the control group. However, therewere no significant differences among 3, 7, and 14 days of immersion. EDX revealed that remineralization occurred by the deposition of calcium andphosphate ions.Conclusion: Including pAsp in the PILP process produced rapid remineralization of demineralized dentin.

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