Nowadays, the focus in the waste management is on recyclable products and on material recycling of waste. For example there is a recycling of copper and aluminium pickles. The pickle gets neutralised and after the removing the remaining supernatant via a chamber filter press the sludge is taken into the specific smeltery. This master theses deals with the recovery of tin and iron pickles. Experiments to neutralise the pickle with sodium hydroxide were done whereby metal hydroxide sludge precipitates. The sludge was taken to a laboratory to find the precipitation areas of the including metals. Based on the results of the previous tests the tin pickle was neutralised in two steps. In the first step it was titrated until a pH level of 3 and the clear supernatant liquid was separated from the sediment. The second step was a neutralisation of the liquid until a pH level of 7. The first step sludge contains more tin and in the second more copper. This stepped chemical neutralisation process improves a later material recycling. In addition copper sludge was dissolved in hydrochloric acid, followed by a neutralisation with a sodium hydroxide until a pH level of 7. Analyses of the clear supernatant and the sludge were done, in order to find the precipitation areas of the contained metals. In the end of this theses is a comparison of precipitation areas based on the results of the experiments and those found in literature. Though, only a partial conformity of these areas was found.