我厂-60目钨精矿脱磷,过去采用盐酸浸出。投产后虽经多次改进,但仍存在粉钨精矿损失多,实收率低,且用酸量大,腐蚀设备,作业条件差等缺点。在毛主席革命路线指引下,广大职工群众,通过不断生产实践和试验,于1974年底,改单一酸浸为浮—重—酸浸脱磷工艺,今年初又进行了局部改进,进一步提高了脱磷的效果。生产实践表明,我厂现用的浮—重—酸浸联合 I plant -60 mesh tungsten concentrate dephosphorization, hydrochloric acid leaching in the past. Although many improvements have been put into operation, there are still many disadvantages such as the loss of powder tungsten concentrates, the low yield, and the large amount of acid, corrosion equipment and poor working conditions. Under the guidance of Chairman Mao’s revolutionary line, the masses of workers and staff, through continuous production practices and experiments, changed the single acid leaching process into a floating-heavy-acid leaching process by the end of 1974 and further improved its partial improvement earlier this year Phosphorus effect. Production practice shows that my plant is now floating - heavy - acid leaching joint