Method for manufacturing rutile type high-purity titanium dioxide

Method for manufacturing rutile type high-purity titanium dioxide

  • CN 1,156,690 A
  • Filed: 12/06/1996
  • Published: 08/13/1997
  • Est. Priority Date: 12/06/1996
  • Status: Abandoned Application
First Claim
Patent Images

1. , a kind of manufacture method of rutile type high-purity titanium dioxide, it is characterized in that:

  • technical process has;

    1. after ilmenite concentrate being pulverized, carry out 1~

    5 hour acidolysis reaction, add entry simultaneously and auxiliary agent reacts with the vitriol oil.2. in the acidolysis thing, add the reduction auxiliary agent, leach reduction 1-12 hour.3. add auxiliary agent and carried out sedimentation 1-24 hour in reduced liquid, the titanium liquid after the sedimentation gets filtered liquid through after filtering.4. the filtered liquid freezing and crystallizing is separated out FeSO47H 2Behind the O, filter to isolate green vitriol. 5. the filtrate that filtrate is refiltered the back gained adds the auxiliary agent crystal seed and is hydrolyzed, and after treating to separate out the metatitanic acid throw out in a large number, filters out the metatitanic acid solid.6. wash the metatitanic acid solid with water, carry out drying, calcining, pulverizing then.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×