Oil is produced by extracting soybean seeds with hexane. The mashed soybean seeds contain 18.6% oil and 12.4% moisture. There is 0.8% oil, 87.7% solid matter and 11.5% moisture in the pulp removed after the extraction process. Contains 2% oil as solvent, hexane is used, and since 1 kg of soybean paste is fed into the extractor, 1 kg of solvent is fed to the extractor; A) The composition of the obtained extract phase, B) Calculate the recovery percentage of the oil in the porridge.