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研究了在４ＭＰａ压力下，用混沉法、分步沉淀法及共沉淀法制得的ＣｕＯ－ＺｎＯ－ＺｒＯ２催化剂对ＣＯ／Ｈ２合成甲醇的催化活性。用ＢＥＴ、ＸＲＤ、ＳＥＭ等测试方法对催化剂的比表面、晶相组成、锆的分布及ＺｒＯ２的存在形式及作用进行了探讨。结果表明，共沉淀法制得的样品具有最高的活性、最大的比表面、最差的晶形及最均匀的锆分布；在载体法样品中，锆组份以ＺｒＯ２（单斜）晶体形式存在，在分步沉淀样品中，锆组份主要以非晶态形式存在，而在共沉淀样品中，一部分锆组份存在于固体中；前一种形式的锆提高催化剂的热稳定性，后一种形式的锆提高催化剂的催化活性。
The catalytic activity of CuO-ZnO-ZrO2 catalysts prepared by mixed precipitation, fractional precipitation and coprecipitation at 4MPa was investigated for the synthesis of methanol from CO / H2. The specific surface area, crystal phase composition, zirconium distribution and the existence and function of ZrO2 were investigated by BET, XRD and SEM. The results show that the sample prepared by coprecipitation method has the highest activity, the largest specific surface area, the worst crystal form and the most uniform zirconium distribution. In the support sample, the zirconium component exists in the form of ZrO2 (monoclinic) crystal. In the step-by-step precipitation sample, the zirconium component is mainly in the amorphous form, whereas in the coprecipitated sample, a part of the zirconium component is present in the solid; the former form of zirconium increases the thermal stability of the catalyst. The latter form Zirconium improves the catalytic activity of the catalyst.