I think you are confused. The confederacy wanted to keep slavery.
1868
The constitution should prohibit the states from participating in the international slave trade.
slavery and the slave trade were still legal
The constitution stated that it could not affect the slave trade until 1808. That's pretty much it.
slave trade
(Slavery)
The Confederate Constitution prohibited the international slave trade but permitted the domestic institution without restriction and forbade any Confederate state to abolish it.
The 1808 Slave Trade Compromise in the Constitution.
no
The US constitution specified that Congress was free to outlaw the slave trade after 20 years. Congress did so the first date it was allowed.The Constitution prohibited Congress from outlawing the Atlantic slave trade for twenty years.
1807
The United States Constitution protected the slave trade for twenty years. This protection was not to expire prior to the year 1808. After January first of that year, laws could take effect to end the slave trade in the United States.
Congress was given the power to ban the slave trade after 1808.
The Slave Trade
for economic results
1868
The constitution should prohibit the states from participating in the international slave trade.