Science Explorer Interactive view Map

Top Countries in Filtration and Separation Research

China ranks first in 2022–2025, out of 2 ranked countries.

Composite score: field-normalised excellence, output and total citations weighted 50 / 30 / 20, each as a percentile so no single heavy-tailed measure dominates. Floor: 100 fractional works in this field.

Ranked by research quality, 2022–2025

#CountryScoreTop-10% rateWorksCitationsAll time
1China 100.0 12.2% 575 4.9k#3
2India 0.0 8.8% 300 2.2k#5

countries ranked worldwide in Filtration and Separation (2). rank on the composite score within the stated pool. The score track runs 0 to 100; the rate track carries no world mark, because the world rate differs by field.

Ranked by volume, 2022–2025

  1. 1 China 575 works
  2. 2 India 300 works
  3. 3 United States 188 works
  4. 4 Russia 158 works
  5. 5 Iran 98 works
  6. 6 Germany 79 works
  7. 7 France 64 works
  8. 8 Japan 63 works
  9. 9 Brazil 61 works
  10. 10 Portugal 49 works
  11. 11 Spain 47 works
  12. 12 United Kingdom 37 works