Mixed acid as the catalyst, vacuum distilling condensation, the yield could be 53.

  • 采用乙醛酸、尿素和回收滤液为原料,混酸为催化剂, 经真空蒸馏缩合制得尿囊素.

  • 网络文摘精选 2025-01-18 11:52:22

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