公开(公告)号：US3801566A

公开(公告)日：1974-04-02

申请号：US3801566D

申请日：1971-06-15

Applicant: STAMICARBON

Inventor： ELMENDORP J ,  DE ROOIJ A

IPC: C07D201/16 ,  C07D41/06

CPC classification number: C07D201/16

Abstract: A PROCESS FOR RECOVERING E-CAPROLATAM FRO SOLUTIONS OF E-CAPROLACTAM AND SULPHURIC ACID AND SO3 IS DISCLOSED WHEREIN AMMONIUM DIHYDROGEN PHOSPHATE OR ALKALI METAL DIHYDROGEN PHOSPHATE IS ADDED TO THE LACTAM, SULPHURIC ACID SOLUTION AND THE SOLUTION THEN SUBJECTED TO EXTRACTION BY A SUBSTANTIALLY WATER IMMISCIBLE SOLVENT FOR THE LACTAM WHEREBY THE LACTAM IS EXTRACTED FROM THE SULPHURIC ACID SOLUTION AND THE LACTAM FREE SULPHURIC ACID SOLUTION CAN BE USED TO PROCESS ROCK PHOSPHATE TO GYPSUM AND PHOSPHORIC ACID AND THE PHOSPHORIC ACID BEING CONVERTED TO AMMONIUM OR ALKALI METAL DIHYDROGEN PHOSPHATE TO BE USED IN TREATING FURTHER SOLUTIONS OF LACTAM AND SULPHURIC ACID.

公开(公告)号：US3729304A

公开(公告)日：1973-04-24

申请号：US3729304D

申请日：1971-06-15

Applicant: STAMICARBON

Inventor： ELMENDORP J ,  DE ROOIJ A

IPC: C05B7/00 ,  C05B11/04

CPC classification number: C05B7/00

Abstract: A process for synthesizing an oxime by reacting an organic carbonyl compound with a hydroxylammonium sulfate and ammonium hydrogen sulfate in the presence of ammonium dihydrogen phosphate whereby an aqueous solution of phosphoric acid and ammonium sulfate is obtained after separating the oxime product therefrom. The phosphoric acid, ammonium sulfate solution can be used in processing rock phosphate with the aid of nitric acid to product a fertilizer composition having a N to P2O5 ratio of approximately 1:1.

Abstract translation: 在磷酸二氢铵存在下使有机羰基化合物与羟基硫酸铵和硫酸氢铵反应合成肟的方法，由此在分离出肟产物后得到磷酸和硫酸铵的水溶液。 磷酸，硫酸铵溶液可用硝酸处理岩石磷酸盐，产生N = P2O5比约为1:1的肥料组合物。