PROCESS FOR DEVELOPING CRUDE PHOSPHATES

• Main Authors: SZILAGYI,JANOS,HU, SZELIER,BELA,HU, GYOERFFY,VERNER,HU, SCHNEIDER,JANOS,HU, CSASZAR ERNOENE,HU, HORVATH,LASZLO,HU
• Format: Patent
• Language: English
• Published: 28.03.1985
• Edition: 4
• Subjects: CHEMISTRY; FERTILISERS; MANUFACTURE THEREOF; METALLURGY; PHOSPHATIC FERTILISERS

Row phosphate ores with a high carbonate content are digested with mineral acid in the presence of 0.01-0.1 wt% anti-foaminq agent based on the amt. of row phosphate. The anti-foaminq agent is made up of 35-60 pts. wt. crude oil with a viscosity of 10-30 centistokes at 50 deg.C which contains at lea...