Desalting system for excavated metal objects using high temperature, high pressure deoxygenated water

我们提出了一种新的方法来去除渗透到挖掘出的金属物体中的盐。该方法通过使用含有金属腐蚀抑制剂的高温高压脱氧水来清洗挖掘出的金属物体。该方法与以往的方法相比，大大缩短了洗涤时间。该方法产生的废水不需要处理，也不需要从金属物体中去除化学物质。此外，这种方法适用于某些金属（例如铁物体，青铜物体）。我们定量测定了从实际金属物体中溶解的可溶性盐，发现可溶性氯离子和硫酸根离子之间有很大的差异。

We propose a new method to remove salts that have permeated into excavated metal objects. This method cleans the excavated metal objects by using high temperature, high pressure dexygenated water containing inhibitors for corrosion of metals. The method greatly reduces the washing time compared with previous methods. Waste water from the method does not need treatment, nor do chemicals need to be removed from the metal objects. Furthermore, this method is applicable to some kinds of metals (for example iron objects, bronze objects). We measured quantitatively the soluble salts dissolved from actual metal objects and found that there was a large difference between soluble chloride ions and sulfate ions.