Abstract: The present invention relates to the manufacture of a chemical reagent whose principal active constituent comprises hydrated metastable forms of CAH10 and C2AH8 in aqueous suspension, and for use of the reagent within other processes where an aqueous suspension of precipitated calcium aluminate is required. The present invention further relates to the use of one or more particle segregation stages to assist the chemical reaction processes that are involved.

Abstract: The present invention relates to an improved process for treating high sulphate waters. In particular, the present invention relates to an improved process making use of aluminium compounds in order to precipitate layered double hydroxide compounds and any one or more of metals, sulphate, aluminate and phosphate. The present invention further relates to the use of one or more particle segregation stages, as well as the return of aluminium containing compounds from the particle segregation stage and aluminium compounds from a further reaction stage to an initial reaction stage.

Abstract: The present invention relates to an improved process for treating high sulphate waters. In particular, the present invention relates to an improved process by which ettringite is used to treat high sulphate waste waters by controlled precipitation of sulphate and metal ions.

Abstract: The present invention relates to an improved process for treating high sulphate waters. In particular, the present invention relates to an improved process by which ettringite is used to treat high sulphate waste waters by controlled precipitation of sulphate and metal ions.

Abstract: This invention relates to a tubular cyclonic separation device the style of which was presented in PCT/ZA2003/000160 and which enables all of the inlet and outlet connections to be completely contained within a tubular profile, the diameter of which is that of the body of the cyclonic section. This disclosure adds further novel and inventive developments to the cyclonic device which enable it to be used as a separating device for systems involving all three phases (gas, liquid and solid) and where two, three or more different product streams may be separated, all within the same cylindrical profile. These further inventive developments also relate to the use of externally supplied gas and/or additional liquid phases which are injected through the walls of the cyclonic body using specifically located slots and/or holes in combination with specifically located stepped edges.

Abstract: This invention relates to a tubular cyclonic separation device the style of which was presented in PCT/ZA2003/000160 and which enables all of the inlet and outlet connections to be completely contained within a tubular profile, the diameter of which is that of the body of the cyclonic section. This disclosure adds further novel and inventive developments to the cyclonic device which enable it to be used as a separating device for systems involving all three phases (gas, liquid and solid) and where two, three or more different product streams may be separated, all within the same cylindrical profile. These further inventive developments also relate to the use of externally supplied gas and/or additional liquid phases which are injected through the walls of the cyclonic body using specifically located slots and/or holes in combination with specifically located stepped edges.

Abstract: The invention relates to equipment for use in the removal of relatively fine particulates from a first substance, using a second substance.