Chlorhydric acid pickling

PSPFC preparation employing hydrochloric acid pickling wastewater and its application in wastewater treatment;

盐酸酸洗废液制备聚硅酸聚合氯化铁絮凝剂及其对污水处理的研究

A preparation method of polysilicate polyferric chloride flocculant(PSPFC) by leaching ferric tailings with hydrochloric acid pickling wastewater,was studied,and the reasonable preparation craft and technological conditions were determined.

研究了以盐酸酸洗废液分解铁尾矿制备聚硅酸聚氯化铁(PSPFC)复合絮凝剂的方法,确定了合理的制备工艺和工艺条件。

By using the hydrochloric acid pickling wastewater and scrap iron asraw materials ,the polysilicic acid - polyferric chloride ( PSPFC ) flocculant isprepared under different conditions.

以盐酸酸洗废液和废铁屑为原料,制备了聚硅酸聚合氯化铁复合型絮凝剂(PSPFC),研究了聚铁中铁浓度、聚合硅酸浓度、聚合硅酸pH值、n(Fe)∶n(Si)及复合熟化时间等因素对絮凝性能的影响。

Stable Vitamin K 3 (MNB) is synthesized by addition reaction of raw materials of niacinamide, chlorhydric acid and menadione sodium bisulfite at 25℃.

以烟酰胺、盐酸为原料 ,在 2 5℃反应得烟酰胺盐酸盐溶液 ,而后与亚硫酸氢钠甲萘醌 (MSB)发生加成反应 ,反应的物料配比为 :n(亚硫酸氢钠甲萘醌 ) ∶ n(烟酰胺 ) ∶ n(盐酸 ) =1∶1。

When a chlorhydric acid tank arrived at the power station of Harbin Petrochemical Company, it was kept for a whole winter months at a temperature of - 38℃.

中国石油天然气股份有限公司哈尔滨分公司电站车间的一台盐酸储罐进厂后曾在严寒环境(-38℃)放置了一个冬天,致使内壁村胶层质量受到了影响,储罐投用一个月后便发生了腐蚀泄漏事故。

A process for preparing polyaluminum chloride from waste chlorhydric acid and poor quality kaolin has been developed.

开发出一种用废盐酸和劣质高岭土生产聚合氯化铝的方法。

Preparation of xylose from straw by formic/hydrochloric acid system hydrolysis;

甲酸/盐酸体系水解麦草产生木糖的研究

Study and development of a Mannich based corrosion inhibitor for hydrochloric acid acidifying;

一种曼尼希碱型盐酸酸化缓蚀剂的研制