BPL (bone phosphate of lime, or basic phosphate of lime) appears in technical glossaries of the fertiliser industry as the abbreviation for this designation.[1][2] Production balances and international trade statistics for phosphates report BPL and P2O5 contents side by side. Yara's Handbook thus illustrates a processing stream starting from a rock grading 72% BPL and 33% P2O5, noting that this assay is one example among several.[3][4]
Moroccan deposits at Khouribga show a nominal grade of 73% BPL, whereas Russian Kola apatites reach 84% BPL.[5] BPL enters into yield calculations for wet-process phosphoric acid plants and in determining the cash costs of phosphate fertilisers such as DAP, MAP and TSP.
Sources
- EFMA, BAT Booklet No. 1, Production of Ammonia (2000), p. 34 · View the source
- Commission européenne, BREF LVIC-AAF (2007), p. 438 · View the source
- Yara, Fertilizer Industry Handbook 2022, p. 97 · View the source
- Yara, Fertilizer Industry Handbook 2025, p. 100 · View the source
- Commission européenne, BREF LVIC-AAF (2007), p. 245 · View the source
Original text by fertiliser-market.com. Facts and figures are taken from the documents cited, at the page given; no text, table or chart is reproduced from them.
Updated October 27, 2026