高稳定性硫酸钠-过氧化氢-氯化钠加合物合成工艺的研究

以工业H2O2为原料制备稳定的硫酸钠-过氧化氢-氯化钠加合物,考察了原料配比、反应温度和稳定剂对产品的影响;研究了母液循环工艺及产品稳定性。结果表明,以250 g Na2SO4为基准,加入300 mL27.5%H2O2,50 gNaCl,反应温度10℃左右,稳定剂选用复合稳定剂时产品质量最佳;母液经5次循环,其组成、固相产品质量及产品中H2O2含量基本不变;产品在100℃加热,3 h的分解率小于2%;将5%的产品配入国标洗衣粉,其稳定性为过碳酸钠的20倍,与洗衣粉的配伍性较好。

Study on the synthesis process of high stability sodium sulfate-hydrogen peroxide-sodium chloride adduct

The stable sodium sulfate-hydrogen peroxide-sodium chloride adduct was prepared by the industrial grade hydrogen peroxide solutions.The effect of the material ratio,reaction time and stabilizers on product were studied.The process of the mother liquid cycle and the stability of the product were studied.Results showed it was considered the benchmark was of 250 g Na2SO4,when adding 300 mL 27.5% H2O2,50 g NaCl,the reaction temperature was 10 ℃,the stable reagent was compound,the quality of the product was fine.Amount of solid product and its hydrogen peroxide content were approximately the same in five cycles.The product was kept at 100 ℃ for 3 h.Decomposition fraction of the product for each cycle was less than 2%.The 5% product was added in the national standard washing powders,the stability was over 20 times than sodium percarbonate,the compatibility to washing powder was better.