Method for reclaiming hydrochloric acid and metal copper from printed circuit acidic etching waste liquidThe invention relates to a method to recycle hydrochloric acid and copper from acidic waste etching liquid of printing circuit, comprising the equipment: a heater, an evaporator, a stuffing tower,...
Process for the recovery of metals and hydrochloric acid A method for recovering hydrochloric acid and metal oxides from a chloride liquor is described. The method comprises: providing a chloride liquor including the metal and mixing the liquor and a matrix solution to produce a reaction mixtu.....
A method for separation and recovery of noble metals which makes it possible to isolate noble metal components efficiently by easy operation, that is, a method which comprises passing a solution of metals in hydrochloric acid prepared by treating a metal material with hydrochloric acid through the ...
Leaching of metals from industrial solid waste in hydrochloric acid, HCl solution was studied. In this study, the significant of parameters such as HCl concentration, temperature, liquid to solid ratio and leaching time on the removal percentage of metal impurities were investigated using response sur...
hydrochloricacid名词 盐酸名() 例子: hydrochloric acid HCl— 盐酸 · 氢氯酸 也可见: acid名— 酸名 · 酸液名 酸溜溜形 ▾ 外部资源(未审查的) The plant fire department brought the resultinghydrochloric acidcloud under control with water
Hydrochloric acid can dissolve metal oxides and remove rust stains. It can make the metal surface plated more firmly and appear more firm, achieving a better anti-corrosion effect. 4.Hydrochloric acid has many other uses, such as leather processing, salt ...
Continuous pickling of metal in hydrochloric acid bath - esp. pickling steel prior to galvanising in molten zinc bath, where acid and ferrous chloride are ... pickling steel prior to galvanising in molten zinc bath, where acid and ferrous chloride are reclaimedPart of the soln. in the HCl ...
English name:hydrochloric acid Appearance:colorless or light yellow transparent liquid with pungent smell Property:It is inorganic strong acid with sour taste; easily soluble in water; soluble in ethyl alcohol, diethyl ether; react with many metal, metallic oxide, alkaline and salt ...
Metal-contaminated hydrochloric acid (especially of 3-5% HCl concentration) is processed by evaporating to produce a HCl/water vapor mixture which is then rectified to produce a near-azeotropic HCl product. Processing of metal-containing (especially iron and/or zinc containing) hydrochloric acid (...
hy·dro·chlo·ric acid (hī′drə-klôr′ĭk) n. A clear, colorless, fuming, poisonous, highly acidic aqueous solution of hydrogen chloride, HCl, used as a chemical intermediate and in petroleum production, ore reduction, food processing, pickling, and metal cleaning. It is found in ...