Study on an unhairing process with hydrogen peroxide and amines

In this work, the feasibility of an unhairing process with hydrogen peroxid e and amines as an alternative to the conventional unhairing process was co nsidered. A second order central rotatable design for two variables was app lied to study the influence of both hydrogen peroxide and amine offers on t he characteristics of chromed tanned leather. Likewise, the possible float recycling after protein precipitation and sepa ration by filtration from the unhairing bath was considered. Subsequently, a study on the quantification of water consumption and analysis of the resu lting wastewater was carried out for a given hydrogen peroxide and amine of fer.