Inhibition of Ca3(PO4)2, CaCO3, and CaSO4 Precipitation for Industrial Recycling Water

Autor:	Liu Guangqing, Huang Jingyi, Zhou Yuming, Sun Wei, Fu Change, Wu Wendao
Rok vydání:	2011
Předmět:	chemistry.chemical_compound Solid particle Chemical engineering Transmission electron microscopy Chemistry Precipitation (chemistry) General Chemical Engineering Copolymer Organic chemistry General Chemistry Carboxylate Industrial and Manufacturing Engineering Acrylic acid
Zdroj:	Industrial & Engineering Chemistry Research. 50:10393-10399
ISSN:	1520-5045 0888-5885
Popis:	In an attempt to control Ca3(PO4)2, CaCO3, and CaSO4 deposits in industrial recycling water systems, an acrylic acid (AA)–allylpolyethoxy carboxylate (APEC) copolymer was examined as a nonphosphorus inhibitor. The synthesized AA–APEC copolymer was characterized by FT-IR. The performance of AA–APEC on inhibition of Ca3(PO4)2, CaCO3, and CaSO4 precipitation was compared with that of current commercial inhibitors. It was shown that AA–APEC exhibited excellent ability to control inorganic minerals, with approximately 82.88% CaSO4 inhibition and 99.89% Ca3(PO4)2 inhibition at levels of 3 and 6 mg/L AA–APEC, respectively. AA–APEC also displayed ability to prevent the formation of CaCO3 scales. Transmission electron microscopy (TEM) images indicated that the outstanding performance of AA–APEC on Ca3(PO4)2 inhibition resulted from a decrease in size of Ca3(PO4)2 solid particles thereby dispersing these particles throughout a fluid, while CaCO3 inhibition was attributed to the formation of ribbon-shaped structures...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e9896de861e20191c2c1b98dc5210230 https://doi.org/10.1021/ie200051r Zobrazit plný text záznamu