Fine YTO - FSSS 5-8 micron, 8 t/month volume

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Fine YTO - FSSS 5-8 micron, 8 t/month volume by Mind Map: Fine YTO - FSSS 5-8 micron, 8 t/month volume

1. Adjust crystallizer

1.1. Control heating rate

1.1.1. Run with lower temperature

1.1.2. High pressure steam heat

1.1.3. Low pressure heat

1.1.4. Increase evaporation rate at the beginning

1.2. seeding

1.2.1. Pump sludge to crystalizer

1.3. adding reagent ( anti solvent)

1.3.1. Chemical/impuritties dosing to produce fine APT

1.4. Monocrystallization / supercritical fluid cystallization

1.5. Control Crystallisation time

1.5.1. Reduce crystallisation time

1.6. Control agitator speed

1.6.1. Increase mixing time to 6h, 8h (after 4h30, no heating)

1.6.2. Increase agitator speed

2. Continuous crystallization and using hydrocyclon

3. Produce H2WO4 from ATS. Then decompose into WO3

3.1. 1. Mix ATS and H2SO4. 2. Filter. 3. Washing. 4. Drying. 5. Calcining

4. Make the APT solid from re-extraction by adjusting content of NH3

4.1. High concentrate of ATS

5. Sieve YTO

5.1. Using ultrasonic vibration

6. Recycle fine crystal of APT/ YTO/BTO dust

6.1. Re-use the sludge APT from BA603/BA605/BA515

6.2. Re-use dust from BTO and YTO

6.3. Re-use dust of APT from helical drier

7. Adjust parameter of calciner

8. Finished Goods size reduction

8.1. Roasting APT at calciner 240 0C to make AMT then decompose again at 500 0C.

8.2. Mixing YTO with NH3

8.3. Grinding YTO