The Dangote refinery in Nigeria is going public as Africa’s richest man, Aliko Dangote, is targeting 10 million retail investors in the “IPO for the people” pitch of Africa’s biggest initial public offering. The Dangote group this month launched a widespread marketing campaign to attract retail investors as part of the IPO planned to raise $1.6 billion and valuing the largest refinery in Africa at $47 billion. The ‘IPO for the people’ could boost the number of retail shareholder accounts in Nigeria fourfold.…