Synthesize Bi-2223 by peritectic decomposition with subsequent recrystallization to study the crystallinity and the effect of the liquid phase in the formation of amorphous is very important in research of superconducting tapes 1G Bi-2223. Such a route of treatment tapes 1G phase Bi-2223 has been demonstrated, but there are still challenges due to its narrow region of stability, and slow formation of lead volatilization during decomposition. In this work, samples of (Bi, Pb) -2223 with 6 percent PbO fraction (added to the reactants) were heated to temperatures above the peritectic decomposition and cooled slowly. Analyzes were employed DTA / TGA, SEM / EDS and DRX Quantitative analysis (using the Rietveld method, V (I) and R (T). Results show that the balance of phases and microstructure depend on the decomposition temperature for commercial and homemade ribbon and the fraction of PbO only homemade tape. a systematic investigation by DRX was performed in order to elucidate this process. was observed a partial recovery of Bi-2223 and studied the tapes results indicate that the decomposition and recrystallization of the phase Bi-2223 phase amorphous and secondary phases generate changes in microstructure and electrical properties of the tape 1G be monofilament or multifilament.