Manufacture of hydrazine sulfate from urea 硫酸肼的工业制法
The method of chlorine dioxide preparation by using chlorate and hydrazine sulfate is studied. 本文介绍了用氯酸钾与硫酸联氨反应制备二氧化氯的新方法。
The weakly acidic cation-exchange fibers with high exchange capacities and good physico-mechanical properties were prepared by hydrolysis of acrylonitrile copolymer fibers under basic condition. The crosslinking agent was hydrazine sulfate. The highest exchange capacity of H+ form fiber is 8. 4 mmol/ g. 本文采用碱性条件下的腈纶水解法,以硫酸肼为交联剂,制备了具有高交换容量和良好物理-机械性能的弱酸性阳离子交换纤维,最高交换容量可达8.4mmol/g(H型干纤)。
The results show that under certain conditions the reaction of chlorate with hydrazine sulfate is a new and safe method to produce chlorine dioxide. The product yield reaches 90% with a purity of 91%. 实验结果表明,在一定条件下,氯酸钾与硫酸联氨反应是一种安全有效的制备二氧化氯的方法,可得到收率大于90%、纯度在91%以上的二氧化氯。
Hydrogenation of carboxylic styrene-butadiene latex was carried out using hydrazine and hydrogen peroxide with ferrous sulfate as catalyst without pressurized hydrogen and an organic solvent. 以硫酸亚铁为催化剂用水合肼及过氧化氢对羧基丁苯胶乳在常压下进行加氢。
Preparation and Application of Weakly Acidic Cation-Exchange Fibers Crosslinked by Hydrazine Sulfate 弱酸性阳离子交换纤维的制备和应用的研究
The procedure has been used to determine the hydrazine in crystal mother liquor from production of hydrazine sulfate, the results are satisfactory. 用于测定硫酸肼生产过程中结晶母液中肼的含量,结果满意。