US 10,717,042 B2  39  40  and/or from the pores of the at least one particulate earth  alkali carbonate-comprising material and/or at least one  particulate earth alkali phosphate-comprising material.  11.  The process according to claim  10,  wherein the  washing step f) is carried out by contacting the at least one  particulate earth alkali carbonate-comprising material and/or  at least one particulate earth alkali phosphate-comprising  material obtained in step c) or if present step e) with water,  an organic solvent, an aqueous solution of at least one basic  reacting salt, or at least one base.  12.  The process according to claim  11,  wherein the at least  one basic reacting salt is Na2CO3 or Li2CO3.  13.  The process according to claim  10,  wherein the at least  one particulate earth alkali carbonate-comprising material  and/or at least one particulate earth alkali phosphate-com- prising material obtained in washing step f) is reused in  process step b) as the at least one particulate earth alkali  carbonate-comprising material and/or at least one particulate  earth alkali phosphate-comprising material.  14.  The process according to claim  11,  wherein the at least  one base is lithium hydroxide, sodium hydroxide, potassium  hydroxide,  calcium hydroxide,  magnesium hydroxide,  ammonia, ammonium hydroxide, organic amines or mix› tures thereof.  15.  The process according to claim  1,  wherein the gaseous  and/or aerosol or liquid medium comprises the one or more  nitrogen oxide(s) in a total amount ofup to 700 ppm, based  on the total volume of the gaseous and/or aerosol or liquid  medium.  16.  The process according to claim  1,  wherein the gaseous  and/or aerosol or liquid medium comprises the one or more  nitrogen oxide(s) in a total amount ofranging from 1 to 600  ppm, based on the total volume of the gaseous and/or aerosol  or liquid medium.  17.  The process according to claim  1,  wherein the at least  one particulate calcium carbonate-comprising material of  step d) is at least one natural ground calcium carbonate  (NGCC), and/or at least one precipitated calcium carbonate  (PCC) having  i) a volume median particle size d$_{50 }$in the range of 60 nm  to 400 µm, determined by the light scattering method,  and/or  ii) a BET specific surface area as measured by the BET  nitrogen method in the range of 25 to 100 m $^{2}$/g, and/or  iii) a particle size distribution d$_{98}$/d$_{50 }$in the range of 3.2  to 5.5, determined by the light scattering method.  18.  The process according to claim  1,  wherein the at least  one particulate calcium carbonate-comprising material of  step d) is at least one natural ground calcium carbonate  (NGCC), and/or at least one precipitated calcium carbonate  (PCC) having  i) a volume median particle size d$_{50 }$in the range of 40 nm  to 2000 µm, determined by the light scattering method,  and/or  ii) a BET specific surface area as measured by the BET  nitrogen method in the range of 15 to 175 m $^{2}$/g, and/or  iii) a particle size distribution d$_{98}$/d$_{50 }$ofa:3, determined by  the light scattering method.  i) a volume median particle size d$_{50 }$in the range of 1.5 µm  to 20 µm, determined by the light scattering method,  and/or  ii) a BET specific surface area as measured by the BET  nitrogen method of from 30 to 160 m $^{2}$/g, and/or  iii) a particle size distribution d$_{98}$/d$_{50 }$in the range of 1.5  to 3, determined by the light scattering method, and/or  iv) an intra-particle intruded specific pore volume in the  range of 0.178 to 1.244 cm $^{3}$/g, calculated from a  mercury intrusion porosimetry measurement.  i) a volume median particle size d$_{50 }$in the range of 1 µm  to 100 µm, determined by the light scattering method,  and/or  ii) a BET specific surface area as measured by the BET  nitrogen method in the range of 15 to 200 m $^{2}$/g, and/or  iii) a particle size distribution  d,$_{8}$ /d$_{50 }$of ;;,;l .3, determined  by the light scattering method, and/or  iv) an intra-particle intruded specific pore volume in the  range of 0.150 to 1.300 cm $^{3}$/g, calculated from a  mercury intrusion porosimetry measurement.  *  *  *  *  *  20.  The process according to claim  1,  wherein the at least  one particulate earth alkali carbonate-comprising material  and/or at least one particulate earth alkali phosphate-com› prising material of step b) is at least one surface-modified  calcium carbonate (MCC) having  19.  The process according to claim  1,  wherein the at least  one particulate earth alkali carbonate-comprising material  and/or at least one particulate earth alkali phosphate-com› prising material of step b) is at least one surface-modified  calcium carbonate (MCC) having 