Process flow for producing sulfuric acid from pyrite
Thread Content
What is the process flow for producing sulfuric acid from pyrite? Please those who know answer it
There is a lot of information on this topic in this section; go and search for it. There are also many books on sulfuric acid, which cover this topic.
I have it in CAD format; you can get in touch with me
Do you want a brief one or a detailed one?
I need a detailed process flow. Thank you
Due to differences in the production scale of the devices, the equipment and process flows selected also vary.
Is there a process flow diagram with control points on the 3rd floor? Could you send me one? My email address is wjj_00@126.com
Sulfur is added to the sulfur melting tank, melted using steam, and then sent to a filter for filtration; after filtering, it goes into the refined sulfur tank. It is then fed into an incinerator, and after passing through the flue gas cooler, it enters the conversion tower as well as the intermediate absorption tower and the exhaust gas absorption tower – and that’s it!
The production of acid from pyrite involves, in simple terms, processes such as raw material pretreatment, roasting, purification, conversion, and absorption.
The one on the third floor, I’d like one too at supersthero@sina.com. Thank you
Let me briefly explain it using the conventional 120,000-ton capacity configuration (in a 3+2 configuration):
**Raw material section:** Grab crane – hopper – disk feeder – belt conveyor (permanent magnet magnetizer) – vibrating screen (to remove excess powder from the coarse material) – belt conveyor – hopper (a hoist may be required if the hopper is at a high position) – feeder in front of the furnace – **Baking section**.
**Baking section:** Fluidized bed furnace (equipped with auxiliary devices such as a furnace bottom fan and secondary fans) – waste pot – cyclone – electrostatic precipitator (slag is discharged through a slag discharge machine) – **Purification section**.
**Purification section:** Air-cooling tower – power wave device – washing tower – electrostatic demister – **Dry absorption section**. The purified acid sludge can be filtered using inclined tube settlers or Sieve filters; the cooling of dilute acid can be achieved through water cooling using plate heat exchangers.
**Dry absorption conversion section:** Drying tower – SO2 fan – heat exchanger – converter – first absorption tower – heat exchanger – converter – heat exchanger – converter – second absorption tower – **Tail gas absorption section** (the containers for acid production and acid circulation are dry absorption circulation tanks; the produced acid flows into underground tanks, from where it is transported to storage tanks for finished acid. The cooling of the acid in this section can be accomplished through anode protection along with circulating cooling water). For the acid pipes in the upper and lower towers of this section, low-chromium cast pipes or alloy cast pipes resistant to high temperatures and concentrated acids can be used, or 316L stainless steel pipes can also be employed, but anode protection will be necessary, which increases the cost. Tail gas absorption section: Due to varying requirements, processes, and equipment among different manufacturers, liquid ammonia, caustic soda, soda ash, lime water solution, or calcium carbide slag solution are generally used to absorb the tail gas. The process equipment used varies depending on the source of pyrite. This post was last edited by infowang2006 on 2009-3-18 13:15.]
**Raw material section:** Grab crane – hopper – disk feeder – belt conveyor (permanent magnet magnetizer) – vibrating screen (to remove excess powder from the coarse material) – belt conveyor – hopper (a hoist may be required if the hopper is at a high position) – feeder in front of the furnace – **Baking section**.
**Baking section:** Fluidized bed furnace (equipped with auxiliary devices such as a furnace bottom fan and secondary fans) – waste pot – cyclone – electrostatic precipitator (slag is discharged through a slag discharge machine) – **Purification section**.
**Purification section:** Air-cooling tower – power wave device – washing tower – electrostatic demister – **Dry absorption section**. The purified acid sludge can be filtered using inclined tube settlers or Sieve filters; the cooling of dilute acid can be achieved through water cooling using plate heat exchangers.
**Dry absorption conversion section:** Drying tower – SO2 fan – heat exchanger – converter – first absorption tower – heat exchanger – converter – heat exchanger – converter – second absorption tower – **Tail gas absorption section** (the containers for acid production and acid circulation are dry absorption circulation tanks; the produced acid flows into underground tanks, from where it is transported to storage tanks for finished acid. The cooling of the acid in this section can be accomplished through anode protection along with circulating cooling water). For the acid pipes in the upper and lower towers of this section, low-chromium cast pipes or alloy cast pipes resistant to high temperatures and concentrated acids can be used, or 316L stainless steel pipes can also be employed, but anode protection will be necessary, which increases the cost. Tail gas absorption section: Due to varying requirements, processes, and equipment among different manufacturers, liquid ammonia, caustic soda, soda ash, lime water solution, or calcium carbide slag solution are generally used to absorb the tail gas. The process equipment used varies depending on the source of pyrite. This post was last edited by infowang2006 on 2009-3-18 13:15.]