The invention relates to a treatment method for
zinc oxygen pressure leaching solution. The treatment method includes the steps that neutralizing precipitate is added to the
zinc oxygen pressure leaching solution, reaction is carried out until the pH value of the solution is 4-5, and the neutralized solution and
gypsum slag are obtained; the
gypsum slag is washed to obtain washing water; a mixtureis obtained by mixing partial neutralized solution with the washing water, then
lime is added to the mixture, reaction is carried out until the pH value of the mixture is 7-8, and neutralized precipitate is obtained; and wherein, the neutralized precipitate comprises a
hydroxide containing CaSO4 and
zinc. According to the treatment method for the zinc
oxygen pressure leaching solution, neutralizer (
hydroxide of zinc) is self-circulation, additional zinc-containing materials adding to a production
system is not required, the zinc content used as the
zinc hydroxide neutralizer is approximately10% of that of the main production
system, the zinc-containing content of the
gypsum slag is greatly reduced, the required
lime quantity is little, the neutralized precipitate is prepared by mixing the
lime with the neutralized solution and the washing water, and the problem of zinc enriching and recovering in the washing water is solved.