Research on the Properties of Controlling Corrosion and Scale Inhibition of the Modified Starch with Microwave loading

Abstract:

To gain good environmental reagent with no or lower phosphor in controlling corrosion and scale inhibition. We have researched the following contents: On the base of the conventional oxidation method, microwave radiation was used to the three oxidation process: DAPS (namely dialdehyde potato starch) was made with potato-starch oxidated by NaIO₄, then carboxylated to make Carboxyl Potato Starch (CPS), furthermore, phosphorylated to obtain Oxidation Phosphate Potato Starch (OPPS), and researched the properties of controlling corrosion and scale inhibition of OPPS with or without microwave loading. And draw the following results:Not only was the oxidation rate of OPPS increased by microwave loading, but also the whole oxidation time was shorten from Sixteen hours and thirty minutes to one and half an hour comparing with the conventional oxidation way without microwave loading. Furthermore, the crustation inhibitor rate of OPPS to incrustant formed by calcium carbonate reached over ninety percent when temperature changed from seventy to eighty degrees, and the controlling corrosion rate of OPPS to brass H62 and Carbon-steel Q235 reached over ninety percent when the concentration of OPPS was altered from 120 to 200 milligram per litre, which were all higher than that of the contrast team. Moreover, the phosphorus content of OPPS is poor than that of the other universal reagents such as HEDP (namely two hydroxy ethidene phosphonic acid) and ATMP (namely amino three methylene phosphonic acid).

• Periodical: Advanced Materials Research (Volume 997)
• Pages: 9-15
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.997.9
• Online since: August 2014
• Authors: Li Jun Xiang*, Shuang Kou Chen, Jin Hai Yuan
• Keywords: Corrosion Inhibition, Microwave Radiation, Oxidation, Potato Starch, Scale Inhibition

References

[1] Wang Rui. Research on mechanism of scale inhibition of solvent. Chemic Industry and Engineering. 18（2001）801.

[2] Li Hongli, Li Defu, Wu Duan, et al. Research on the beast technics of dialdehyde potato starch(DAPS). China Leather. 36（2007）49.

[3] Su Qiong, Wang Yanbin. Synthesizing and application of fine chemic products from starch . Beijing: Nation Publishing Company. (2004).

[4] Chen Hui, Feng Guotao. physiochemical features and Structure Characterization of Oxidized Starch[J]. Leather Chemical. 22（2005）46-50.

[5] Deng Yu. Research and application on chemic products of starch. Beijing: Chemic Industry Publishing Company. (2002).

[6] Zhou Jiachun, Zhang Dali, Zeng Hanquan. Starch oxidation treated by phosphorus acid and research on its antic-refrigeration and dehydration performance. Science and Technology of Food Industry in Guangzhou. 16(2000)43-45.

[7] Zhang Litian. Denaturated Starch. Guangzhou: South China University of Technology Publishing Company. (1992).

[8] Environmental Protection Departments. HJ546-2009. Test on phosphoric pentoxide in environmental air. China Environmental Science Press. (2009).

[9] Li Huoquan, Wang Yinggao, Li Yongli. Theoretical calculation and analysis of the pH-alkalinity of circulating cooling water. Industrial Water Treatment. 28(2008)24.

[10] J.W. Mai Keyi(translator: Shi Zhongyi, Lin Huaze). Chemical treatment of cooling water. Beijing: Chemical Industry Publishing Company. (1988).

[11] IS06058-1984. Calcium tests in Water by EDTA titration. China Environmental Science Press, (1987).