Could some expert help analyze whether the following titanium dioxide was produced by the sulfate method or the chloride method?
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First, I need to find out whether the titanium dioxide listed below is produced by the chlorination method or the sulfuric acid method. Then I also need to understand what those codes mean – for example, what processes are associated with codes like 202 and 404. Thank you. Tag No. Purpose Service222FT-001 Fresh water inlet flow rate
222FT-002A Inlet flow rate to PCF filter
222FT-002B Inlet flow rate to PCF filter
222FT-003A Inlet flow rate to ultrafiltration unit
222FT-003B Inlet flow rate to ultrafiltration unit
222FT-004A Produced water flow rate from ultrafiltration unit
222FT-004B Produced water flow rate from ultrafiltration unit
222FT-005 Backwash flow rate of ultrafiltration unit
222FT-006 Flow rate in the main inlet pipe to the primary safety filter
224FT-001 Indication of flow rate in the main chilled feed water pipe
404FT-001A Flow rate in the main recirculated feed water pipe
404FT-002A Make-up water flow rate, cumulative
404FT-003A Flow rate of water undergoing side filtration
404FT-001B Flow rate in the main recirculated feed water pipe
404FT-002B Make-up water flow rate
404FT-003B Flow rate of water undergoing side filtration
406FT-001 Flow rate in the main outlet pipe
406FT-002 Flow rate in the main outlet pipe
501FT-001 Cumulative indication of flow rate during loading of waste alkali solution
501FT-002 Cumulative indication of flow rate during loading of waste acid solution
579FT-004 Flow rate of 32% alkali solution
579FT-003 Flow rate of fresh water used for alkali preparation
581FT-009A Flow rate of KCl solution
581FT-009B Flow rate of KCl solution
581FT-013A Flow rate of recirculated water entering the cooling conduit
581FT-013B Flow rate of recirculated water entering the cooling conduit
581FT-015A Downward recirculation flow rate of slurry in the slurrying tank
581FT-015B Downward recirculation flow rate of slurry in the slurrying tank
581FT-016A Upward recirculation flow rate of slurry in the slurrying tank
581FT-016B Upward recirculation flow rate of slurry in the slurrying tank
581FT-017A Flow rate of slurry from the slurrying tank to storage tanks
581FT-017B Flow rate of slurry from the slurrying tank to storage tanks
581FT-018A Flow rate of H2O2 solution
581FT-018B Flow rate of H2O2 solution
581FT-019 Flow rate of alkali washing solution entering the upper nozzles of the primary alkali washing tower
581FT-020 Flow rate of alkali washing solution entering the lower nozzles of the primary alkali washing tower
581FT-021 Flow rate of alkali washing solution entering the upper nozzles of the secondary alkali washing tower
581FT-022 Flow rate of alkali washing solution entering the lower nozzles of the secondary alkali washing tower
581FT-023 Flow rate of 32% alkali solution
581FT-024 Flow rate of process water used for alkali preparation
581FT-028A Flow rate of alkali solution used for slurry neutralization
581FT-028B Flow rate of alkali solution used for slurry neutralization
581FT-029A Flow rate of dispersant
581FT-029B Flow rate of dispersant
581FT-031A Flow rate of filtrate from Tubular Filter A
581FT-031B Flow rate of filtrate from Tubular Filter A
581FT-032A Flow rate of filtrate from Tubular Filter B
581FT-032B Flow rate of filtrate from Tubular Filter B
581FT-033A Overflow flow rate from the primary hydrocyclone
581FT-033B Overflow flow rate from the primary hydrocyclone
581FT-034A Overflow flow rate from the secondary hydrocyclone
581FT-034B Overflow flow rate from the secondary hydrocyclone
581FT-035A Flow rate of slurry entering the sand mill
581FT-035B Flow rate of slurry entering the sand mill
582FT-001 Inlet flow rate of 31% HCl to V-82001A/B
582FT-002 Inlet flow rate of 32% NaOH to V-82004
582FT-004 Inlet flow rate of 32% NaOH to V-82006A/B
582FT-007 Flow rate of TME at the outlet of P-82117A
582FT-008 Flow rate of TME at the outlet of P-82117B
582FT-009 Flow rate of TME at the outlet of P-82217A
582FT-010 Flow rate of TME at the outlet of P-82217B
582FT-011 Flow rate of 6% hydrochloric acid at the outlet of V-82110
582FT-012 Flow rate of 6% hydrochloric acid at the outlet of V-82110
582FT-013 Flow rate of 10% hydrochloric acid at the outlet of V-82111
582FT-014 Flow rate of 10% hydrochloric acid at the outlet of V-82111
582FT-015 Flow rate of dilute alkali at the outlet of V-82112
582FT-016 Flow rate of dilute alkali at the outlet of V-82112
582FT-017 Flow rate of sodium aluminate at the outlet of V-82113
582FT-018 Flow rate of sodium aluminate at the outlet of V-82113
582FT-019 Flow rate of sodium silicate at the outlet of V-82114
582FT-020 Flow rate of sodium silicate at the outlet of V-82114
582FT-022 Flow rate of TiO2 suspension at the outlets of P-82107A/B
582FT-023 Total flow rate at the outlets of V-82116A/B/C/D
582FT-024 Flow rate of 6% hydrochloric acid at the outlet of V-82210
582FT-025 Flow rate of 6% hydrochloric acid at the outlet of V-82210
582FT-026 Flow rate of 10% hydrochloric acid at the outlet of V-82211
582FT-027 Flow rate of 10% hydrochloric acid at the outlet of V-82211
582FT-028 Flow rate of dilute alkali at the outlet of V-82212
582FT-029 Flow rate of dilute alkali at the outlet of V-82212
582FT-030 Flow rate of sodium aluminate at the outlet of V-82213
582FT-031 Flow rate of sodium aluminate at the outlet of V-82213
582FT-032 Flow rate of sodium silicate at the outlet of V-82214
582FT-033 Flow rate of sodium silicate at the outlet of V-82214
582FT-035 Flow rate of TiO2 suspension at the outlets of P-82207A/B
582FT-036 Total flow rate at the outlets of V-82216A/B/C/D
582FT-037 Flow rate of TiO2 suspension at the outlet of P-82110A
582FT-038 Flow rate of TiO2 suspension at the outlet of P-82110B
582FT-040 Outlet flow rate of P-82111A
582FT-041 Outlet flow rate of P-82111B
582FT-042 Outlet flow rate of P-82111C
582FT-043 Flow rate of TiO2 suspension at the outlets of P-82210A
582FT-044 Flow rate of TiO2 suspension at the outlets of P-82210B
582FT-046 Outlet flow rate of P-82211A
582FT-047 Outlet flow rate of P-82211B
582FT-048 Outlet flow rate of P-82211C
582FT-061 Flow rate in the main process water pipe
This post was last edited by pzhmotor on 2020-1-14 at 16:15. TICl4 is not mentioned; a sand mill is available, and the process seems to be that of a titanium dioxide production line using the sulfuric acid method – all the elements mentioned are typically used in such processes. But the acidolysis and hydrolysis steps are missing (the difference between the sulfuric acid method and the chlorination method lies in the earlier stages: the chlorination method is used to produce TiCl4, while the sulfuric acid method is used to produce metatitanic acid). Coating, spraying exhaust gases at the end of the rotary kiln, and filtrate recovery are all part of the later stages of the sulfuric acid method... I have no experience with the chlorination method, and I’m not very familiar with the main procedures of the sulfuric acid method either; I’m more knowledgeable in terms of auxiliary systems: 222 relates to auxiliary water treatment processes, which involve fiber filters, while ultrafiltration is used to produce desalinated water. Was chilled water used in 224? I’m not sure why chilled water is used; continuous crystallization requires low-temperature water, and earlier processes for cold crystallization also needed it, but it’s now largely phased out. 404 refers to the circulating water system; the circulating water used in sulfuric acid crystallization is called the wastewater circulation system, while the cooling water for pumps is known as the clean water circulation system. 406 is the water supply process, the pump that delivers the produced water. (406 in the design drawings from the Third Chemical Engineering Institute refers to the water supply process) Friends who are familiar with the chlorination method are welcome to participate!
Thank you, expert! I learned it! What concerns me more are 581 and 582; it’s that work section as well
For chloride-process titanium dioxide, 581 refers to the oxidation step, while 582 refers to the post-treatment
Some process stages of titanium dioxide produced by chlorination method
Previously, sanding machines were cooled with chilled water, but now process water is used instead