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报道了Ｗ－Ｍｎ／ＳｉＯ＿２混浆催化剂分别在０．２和３０ｍｌ固定床进行１０００和５００ｈ的稳定性试验结果，并用ＸＲＤ、ＦＴ－ＩＲ和ＢＥＴ方法对催化剂进行了表征。结果表明，该催化剂具有良好的ＣＨ＿４氧化偶联制Ｃ＿２烃的催化活性和稳定性。结构测试表明，在５００ｈ反应后，该催化剂中结晶形式的Ｎａ）２ＷＯ＿４和Ｍｎ＿２Ｏ＿３均已消失，α－方石英已完全转变为α－鳞石英和α－ＳｉＯ＿２石英。但催化剂的这种结构变化尚未对生成Ｃ＿２烃的收率和选择性产生明显影响。
The results of the stability test of W-Mn / SiO 2 mixed catalysts on 0.2 and 30 ml fixed beds for 1000 and 500 h were reported. The catalysts were characterized by XRD, FT-IR and BET. The results show that the catalyst has good catalytic activity and stability of C_2 hydrocarbon coupled with CH_4. Structural tests show that after 500h reaction, the crystalline forms of Na 2 WO 4 and Mn 2 O 3 in the catalyst have disappeared and α-cristobalite has completely transformed into α-trisene and α-SiO 2 quartz. However, this structural change in the catalyst has not significantly affected the yield and selectivity of C 2 hydrocarbons.