Need help in producing basic lead carbonate

[hkreman]

We are trying to produce basic lead carbonate using the following ways,
1. Prepare basic lead acetate solution: 3PbO+2CH₃COOH+H₂O=Pb(CH₃COO)₂.2Pb(OH)₂
2. introduce CO₂ to get basic lead carbonate: Pb(CH₃COO)₂.2Pb(OH)₂+2CO₂=2PbCO₃.Pb(OH)₂+2CH₃COOH

In theory, the HAc(CH₃COOH) can be fully recovered and used in the new cycle of producing, but
in fact we can not get any HAc(CH₃COOH) after we get basic lead carbonate. We have to use same
PbO:CH₃COOH in the new cycle of reaction, which made our cost very high.

Can any kind engineers/professors help us?

E-mail: chemarea@126.com