Patent ID: 9212407
Filing Date: 2015-12-15
Classification: B23K,C22B

Abstract:
1. A method of processing dross to recover molten solder entrained therein, comprising: (i) removing dross from a solder-bath, wherein the dross comprises entrained solder, (ii) placing the dross from (i) in a receptacle, (iii) adding a liquid active additive comprising a dimer acid mixture to the receptacle containing the dross to form a dross-active additive mixture, wherein the dimer acid mixture comprises a mixture of fatty acid dimers, monomers and trimers, and has an average carbon number in a range of about 24 to 60, and (iv) heating the dross-active additive mixture from (iii) to thereby assimilate dross in the liquid active additive and release molten solder from the dross.