Disodium polyepoxysuccinate that effectively inhibits the formation of scale was synthesized from disodium epoxysuccinate by treatment with alkaline calcium compound. The effect on scale inhibiting property of the pro...Disodium polyepoxysuccinate that effectively inhibits the formation of scale was synthesized from disodium epoxysuccinate by treatment with alkaline calcium compound. The effect on scale inhibiting property of the product from amount and feed times of catalyst, the reaction temperature, the reaction time were investigated. The optimum reaction conditions are as follows: 1 18 g catalyst, 95 ℃ and 3 hours of synthesis.展开更多
Polyaspartic acid(PASP) was prepared by hydrolysis of the polysuccinimide, which was mechanochemically synthesized from maleic anhydride and ammonium hydroxide in nitrogen atmosphere protection. The scale and corrosio...Polyaspartic acid(PASP) was prepared by hydrolysis of the polysuccinimide, which was mechanochemically synthesized from maleic anhydride and ammonium hydroxide in nitrogen atmosphere protection. The scale and corrosion inhibitions of PASP was evaluated and compared with 2-phosphonobutane-1,2,4-tricar- boxylic acid(PBTCA), 1-hydroxyethylidene-1,1-diphosphonic acid(HEDP) and hydrolyzed polymaleic anhydride(HPMA). The results revealed that the inhibition of the PASP is close to that of PBTCA and HEDP, but much better than that of HPMA.展开更多
文摘Disodium polyepoxysuccinate that effectively inhibits the formation of scale was synthesized from disodium epoxysuccinate by treatment with alkaline calcium compound. The effect on scale inhibiting property of the product from amount and feed times of catalyst, the reaction temperature, the reaction time were investigated. The optimum reaction conditions are as follows: 1 18 g catalyst, 95 ℃ and 3 hours of synthesis.
文摘Polyaspartic acid(PASP) was prepared by hydrolysis of the polysuccinimide, which was mechanochemically synthesized from maleic anhydride and ammonium hydroxide in nitrogen atmosphere protection. The scale and corrosion inhibitions of PASP was evaluated and compared with 2-phosphonobutane-1,2,4-tricar- boxylic acid(PBTCA), 1-hydroxyethylidene-1,1-diphosphonic acid(HEDP) and hydrolyzed polymaleic anhydride(HPMA). The results revealed that the inhibition of the PASP is close to that of PBTCA and HEDP, but much better than that of HPMA.
