Modh táirgeachta ocsaíd since

2020/09/28

Modhanna táirgeachtaocsaíd sinceroinnte ina dhá chatagóir: modh uisce agus modh dóiteáin.

1. Dlí uisce
The water method is to use acid, alkali or ammonium carbonate solution, etc., to leach various ocsaíd since ore, zinc-containing smoke and other zinc-containing materials. After removing impurities from the clean liquid, precipitating basic zinc carbonate, drying, and calcining, the finished ocsaíd since is obtained. Ocsaíd since produced by water method is also called active ocsaíd since.
2. Modh dóiteáin
Tá dlí dóiteáin roinnte ina dhlí díreach (dlí Mheiriceá) agus dlí indíreach (dlí na Fraince).
1) In the direct method, the zinc sulfide concentrate is boiled and roasted, and a carbonaceous reducing agent is added to form a lump (in some cases, no lump is made), and then it is added to a Wetherill furnace. At high temperatures, zinc is reduced and immediately oxidized by CO2 in the furnace gas and oxygen in the introduced air. After cooling, it enters into the bag room to obtain finished ocsaíd since (ina bhfuil 99.5%ZnO). This method can also be used to treat low-grade ocsaíd since ore, or various zinc-containing residues, such as flat tank zinc slag, vertical tank zinc slag, etc., to produce external ocsaíd since (go ginearálta bíonn 90% go 95% annZnO).

2) Is é an modh indíreach an tinne since miotail a leá agus é a chur leis an bhfoirnéis galúcháin. Ag teocht ard, déantar an sinc a ghalú, agus ansin tugtar isteach sa bhfoirnéis ocsaídiúcháin (seomra) é le haghaidh ocsaídiúcháin. Tar éis fuaraithe, téann sé isteach sa seomra mála chun an críochnaithe a fháilocsaíd since (ina bhfuilZnO 99.17%).

Úsáidtear an modh indíreach go forleathan. Is féidir modhanna indíreacha a roinnt ina bhfoirnéisí manger, foirnéisí breogán, foirnéisí driogtha, foirnéisí athchlaonta agus modhanna eile mar gheall ar threalamh táirgeachta éagsúla. Is iad na trí mhodh táirgeachta is deireanaí a úsáidtear.