发明名称 |
СПОСОБ ПОЛУЧЕНИЯ CaCO3 ИЛИ MgCO3 |
摘要 |
The present invention relates to a process for producing CaCO3 or MgCO3 from a feedstock comprising a Ca- or Mg-comprising mixed metal oxide, wherein: (a) an aqueous slurry of the feedstock is contacted with a C02 containing gas to form an aqueous solution of Ca(HCO3)2 or Mg(HCO3)2 and a solid Ca- or Mg-depleted feedstock; (b) part or all of the aqueous solution of Ca(HCO3)2 or Mg(HCO3)2 is separated from the solid Ca- or Mg-depleted feedstock; (c) CaCO3 or MgCO3 is precipitated from the separated aqueous solution of Ca(HCO3)2 or Mg(HCO3)2; and (d) the precipitated CaCO3 or MgCO3 is recovered as product. The invention further relates to a process for the production of an aqueous solution of Ca(HCO3)2 or Mg(HCO3)2. |
申请公布号 |
RU2007105895(A) |
申请公布日期 |
2008.08.27 |
申请号 |
RU20070105895 |
申请日期 |
2005.07.07 |
申请人 |
ШЕЛЛ ИНТЕРНЭШНЛ РИСЕРЧ МААТСХАППИЙ Б.В. (NL) |
发明人 |
ГЕРЛИНГС Якобус Йоханнес Корнелис (NL);ВАН МОССЕЛ Герардус Антониус Франсискус (NL);ИН`Т ВЕН Бернардус Корнелис Мари (NL) |
分类号 |
C01F5/24 |
主分类号 |
C01F5/24 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|