A process for alumina and carbonate production from aluminium rich materials with integrated CO 2 utilization, comprising the following steps: I. crushing and milling of the Al-rich materials, II. leaching of the crushed materials in acid to produce a metal chloride solution III. separation of the unreacted solid and the metal chloride solution IV. separation of Al 3+ from the metal chloride solution by crystallization of AlCl 3 ·6H 2 O V. production of Al 2 O 3 by calcination of AlCl 3 ·6H 2 O with HCI recovery VI. utilization of CO 2 to precipitate metal carbonates from the metal chloride solution coming from the Al 3+ separation step VII. regeneration of HCI and an extractive amine characterized in: - leaching the material in step II with a concentrated mineral acid which is predominantly HCI, - separating the Al 3+ in step IV by precipitation of AlCl 3 ·6H 2 O by increasing the HCI concentration in the metal chloride solution - calcination in step V the AlCl 3 ·6H 2 O in two sub-steps: First by indirect heating at temperature between 400 and 600°C to generate a HCl-rich gas followed by a second calcination at a temperature above 600°C to produce Al 2 O 3 - mixing in step VI the Al-lean metal chloride solution with an organic solution containing a selected amine and contacting the mixture with a CO 2 -containing gas, in order to extract HCI by formation of an ammonium chloride salt complex and to precipitate a metal carbonate. - separating the metal carbonate in step VI, the remaining aqueous phase containing metal chlorides and the organic solution containing ammonium chloride. - processing thermally or chemically the organic solution in step VII to regenerate the amine for recirculation in the process. I. crushing and milling of the Al-rich materials, II. leaching of the crushed materials in acid to produce a metal chloride solution III. separation of the unreacted solid and the metal chloride solution IV. separation of Al 3+ from the metal chloride solution by crystallization of AlCl 3 ·6H 2 O V. production of Al 2 O 3 by calcination of AlCl 3 ·6H 2 O with HCI recovery VI. utilization of CO 2 to precipitate metal carbonates from the metal chloride solution coming from the Al 3+ separation step VII. regeneration of HCI and an extractive amine characterized in: - leaching the material in step II with a concentrated mineral acid which is predominantly HCI, - separating the Al 3+ in step IV by precipitation of AlCl 3 ·6H 2 O by increasing the HCI concentration in the metal chloride solution - calcination in step V the AlCl 3 ·6H 2 O in two sub-steps: First by indirect heating at temperature between 400 and 600°C to generate a HCl-rich gas followed by a second calcination at a temperature above 600°C to produce Al 2 O 3 - mixing in step VI the Al-lean metal chloride solution with an organic solution containing a selected amine and contacting the mixture with a CO 2 -containing gas, in order to extract HCI by formation of an ammonium chloride salt complex and to precipitate a metal carbonate. - separating the metal carbonate in step VI, the remaining aqueous phase containing metal chlorides and the organic solution containing ammonium chloride. - processing thermally or chemically the organic solution in step VII to regenerate the amine for recirculation in the process. - leaching the material in step II with a concentrated mineral acid which is predominantly HCI, - separating the Al 3+ in step IV by precipitation of AlCl 3 ·6H 2 O by increasing the HCI concentration in the metal chloride solution - calcination in step V the AlCl 3 ·6H 2 O in two sub-steps: First by indirect heating at temperature between 400 and 600°C to generate a HCl-rich gas followed by a second calcination at a temperature above 600°C to produce Al 2 O 3 - mixing in step VI the Al-lean metal chloride solution with an organic solution containing a selected amine and contacting the mixture with a CO 2 -containing gas, in order to extract HCI by formation of an ammonium chloride salt complex and to precipitate a metal carbonate. - separating the metal carbonate in step VI, the remaining aqueous phase containing metal chlorides and the organic solution containing ammonium chloride. - processing thermally or chemically the organic solution in step VII to regenerate the amine for recirculation in the process.