A method for processing a liquor mixture, from a sulphate method pulp mill, of black liquor and small portions of tall oil soap products, the method comprising, in a first continuous processing step ("A1"), separating and concentrating portions (10b1) of said tall oil soap from said black liquor, said concentrated portions (10b1) of tall oil soap product being adapted for then becoming, in a subsequent process step ("A3"), the object of acidulating to crude tall oil products and residual products, the method further comprising transferring, over a first centrifugal separator ("C1a") included in the first processing step ("A1") and in heated condition, the small tall oil soap portions received in this manner, in heated condition directly, or via a buffer tank ("B"), to said subsequent process step ("A3"), wherein the produced concentrated tall oil soap product (10b1) is mixed with an acid, in a heated stage, for being supplied to a second centrifugal separator ("C2"), included in the subsequent processing step ("A3"), for separating said crude tall oil products from said residual products, wherein the concentrated tall oil soap product (10b1) transferred in this manner is chosen to have a temperature higher than or at least around approximately 95°C, whereas the acid in warm condition is chosen to a temperature of above or at least around approximately 95°C, wherein the first centrifugal separator ("C1a") is chosen with a high separation capacity for forming said concentrated tall oil soap product (10b1) with small portions of residual products mixed with said concentrated tall oil soap product (10b1), and separated black liquor having an adapted small residual portion of tall oil soap, wherein the second centrifugal separator ("C2") is chosen with a lower separation capacity for forming said crude tall oil products and said residual products, wherein the concentrated tall oil soap product (10b1) is formed in the first centrifugal separator ("C1a") and has a concentration of greater than 80 percent by volume, and wherein the centrifugal separator ("C1a") has an additional exit (20b2) for separating suspended material having a density exceeding the density of black liquor, which suspended material is directly fed to a recovery boiler. the method comprising, in a first continuous processing step ("A1"), separating and concentrating portions (10b1) of said tall oil soap from said black liquor, said concentrated portions (10b1) of tall oil soap product being adapted for then becoming, in a subsequent process step ("A3"), the object of acidulating to crude tall oil products and residual products, the method further comprising transferring, over a first centrifugal separator ("C1a") included in the first processing step ("A1") and in heated condition, the small tall oil soap portions received in this manner, in heated condition directly, or via a buffer tank ("B"), to said subsequent process step ("A3"), wherein the produced concentrated tall oil soap product (10b1) is mixed with an acid, in a heated stage, for being supplied to a second centrifugal separator ("C2"), included in the subsequent processing step ("A3"), for separating said crude tall oil products from said residual products, wherein the concentrated tall oil soap product (10b1) transferred in this manner is chosen to have a temperature higher than or at least around approximately 95°C, whereas the acid in warm condition is chosen to a temperature of above or at least around approximately 95°C, wherein the first centrifugal separator ("C1a") is chosen with a high separation capacity for forming said concentrated tall oil soap product (10b1) with small portions of residual products mixed with said concentrated tall oil soap product (10b1), and separated black liquor having an adapted small residual portion of tall oil soap, wherein the second centrifugal separator ("C2") is chosen with a lower separation capacity for forming said crude tall oil products and said residual products, wherein the concentrated tall oil soap product (10b1) is formed in the first centrifugal separator ("C1a") and has a concentration of greater than 80 percent by volume, and wherein the centrifugal separator ("C1a") has an additional exit (20b2) for separating suspended material having a density exceeding the density of black liquor, which suspended material is directly fed to a recovery boiler.