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高冰镍经氧气斜吹转炉吹炼成合一定硫的Cu-Ni合金,再经水雾化后成为高活性羰基化原料。在容积为10升感应加热的高压反应器中进行羰基合成试验。合金硫含量、硫化物分布对合金羰基化影响的研究表明:硫化物的“通道”作用决定了Cu-Ni合金羰基化的活性。当合金中合3～6％S且硫化物呈连续网状“通道”分布时,合金就能在较低的温度(160±10℃)和较低的压力(100kgf/cm~2)下迅速羰基化。镍的羰基合成率可达80～95％。同时也对羰基反应温度、CO压力、合金粒度、表面状态对羰基化的影响做了探讨。
High ice nickel is slurried by oxygen oblique blow converter into a certain sulfur Cu-Ni alloy, and then becomes a highly active carbonylation raw material after water atomization. Oxo synthesis was carried out in a high pressure reactor of 10 liters of induction heating. The study on the influence of alloy sulfur content and sulfide distribution on the carbonylation of the alloy shows that the “channel” effect of the sulfide determines the carbonylation activity of the Cu-Ni alloy. When the alloy is in the range of 3 to 6% S and the sulfide is in a continuous network “channel” distribution, the alloy can be rapidly cooled at lower temperatures (160 ± 10 ° C) and lower pressures (100 kgf / cm ~ 2) Carbonylation. Nickel carbonyl synthesis rate of up to 80 ~ 95%. At the same time, the influence of carbonyl reaction temperature, CO pressure, alloy particle size and surface condition on the carbonylation was also discussed.