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Renewable Energy (Electricity) Regulations 2001
677Production of clinker
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#### 677 Production of clinker
(1) The production of clinker is the physical and chemical transformation of:
(a) either or both of calcium carbonate compounds (limestone (CaCO3)) and other calcium carbonate (CaCO3) feedstocks; and
(b) any of the following:
(i) clay;
(ii) clay mixed with 1 or more feedstocks that contain 1 or more of the following:
(A) silicon dioxide (SiO2);
(B) iron (Fe);
(C) aluminium oxide (alumina (Al2O3));
(iii) 1 or more feedstocks that, when combined, contain all of the following:
(A) silicon dioxide (SiO2); and
(B) iron (Fe); and
(C) aluminium oxide (alumina (Al2O3));
that are fused together at a temperature above 1000 °C into Portland cement clinker.
(1A) The production process may or may not involve the physical transformation of Portland cement clinker into cement through a process of comminution with gypsum or other additives. However, the process must involve the production of clinker as described in subclause (1).
(2) The Portland cement clinker must:
(a) have a concentration of calcium silicates equal to or greater than 60%; and
(b) have a concentration of magnesium oxide (MgO) equal to or less than 4.5%; and
(c) be useable in the making of Portland cement.
(3) The production of clinker is specified as an emissions‑intensive trade‑exposed activity.