Utilization of waste acid
Thread Content
I have conducted many small-scale tests on the treatment of waste sulfuric acid, and after consulting a lot of information I learned that the best current method for treatment is through incineration to produce acid. I earnestly ask my friends to tell me where there are manufacturers that use waste acid to produce sulfuric acid. Thank you. l
Take a look at the post on acid waste concentration. Discussion on new technologies for concentrating waste acid from titanium dioxide production http://bbs.hcbbs.com/viewthread.php?tid=325118 Collection of literature on waste acid treatment http://bbs.hcbbs.com/viewthread.php?tid=305454
In China, Fushun Petrochemical Company is the only one that uses the method of incinerating and pyrolyzing waste acid to produce acid, but its operation is not very stable at present; it is said to have to stop operations on-site for maintenance every three months or so. Foreign companies such as Danfoss in Denmark and Memco in the United States also possess technology in this area.
Are you referring to combustion in a boiling furnace, or combustion in a sulfur incinerator? If it’s these two items, then Lubei Chemical has such equipment
Hello, fine men of northern Shandong: as long as it can be burned to produce acid, it will do.
It must have been burned in a incinerator. But a furnace alone is far from enough; process design is also necessary.
What is the best method for converting dilute sulfuric acid into concentrated sulfuric acid (98%)?
The distillation method involves simply evaporating the water.
I would like to ask everyone: how can I find out the recent price of sulfuric acid?
Find a way to decompose it into sulfur trioxide before feeding it into the acid production process
That’s the case in our factory, and the volume is very large.
The treatment of waste acid requires reliance on experience and experimental data; clean acid can be concentrated without testing. However, for each new type of waste sulfuric acid that contains impurities not present in acids treated before, or whenever a new production process is developed, it is necessary to approach this task carefully, conduct feasibility tests, analyze the results of the treatment, and assess its economic and social benefits. In the current sulfuric acid market, the recycling of waste acid is primarily driven by environmental considerations; there is little profit to be made from recycling waste sulfuric acid, whereas it is more feasible to do so with nitric acid. There are many methods; industrialized ones are rare in China, including drum-type, pot-type, vacuum, combustion, and others. Liaoyang Huanfa welcomes cooperation with everyone in the field of waste acid treatment!
The cost of producing acid from waste acid is relatively high; given the current price of sulfuric acid, it might be necessary to consider other methods. 1# Joybird