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1.发明申请公开(公告)号：US20230063291A1
公开(公告)日：2023-03-02
申请号：US17793937
申请日：2021-04-29
发明人： Jiandong LI , Zhirong CHEN , Lifang SHI , Guodong HUANG , Lishuang PAN , Hong YIN , Dan QIU , Qilei ZHANG , Xiaoyong ZHU , Xiang LIU , Lidan QI
IPC分类号： A23K40/30 , A23K20/105 , A23K20/147 , A23K20/158 , A23K20/163
摘要： A stable carotenoid microcapsule having high bioavailability and a preparation method therefor. The method includes the following steps: a) mixing carotenoid crystals with an organic solvent, and dissolving the mixture to obtain a carotenoid solution; b) introducing the carotenoid solution and a grease into a dispersion system to fully disperse carotenoid into the grease, and vaporizing the organic solvent to obtain a carotenoid-containing dispersion liquid; c) mixing the carotenoid-containing dispersion liquid and a protective colloid aqueous solution, and emulsifying the mixture to obtain an emulsion; and d) performing spray granulation and drying to obtain a carotenoid microcapsule.
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公开(公告)号：US20230406807A1
公开(公告)日：2023-12-21
申请号：US18240466
申请日：2023-08-31
发明人： Lei WU , Kunpeng CHENG , Xueming LI , Runrun HONG , Qing'ai SHI , Chuang WANG , Guodong HUANG , Guiyang ZHOU
IPC分类号： C07C67/035 , B01J19/00 , B01J21/06 , B01J23/04
CPC分类号： C07C67/035 , B01J19/0006 , B01J21/066 , B01J23/04
摘要： A method and apparatus for preparing methyl methacrylate (MMA) are provided. The method includes an aldol condensation reaction, a first distillation, a second distillation, a third distillation, a phase splitting, and a fourth distillation. Through the control of the process, the aldol condensation reaction can be performed when methyl propionate is used as the ninth material stream and formalin solution is used as the fifteenth stream material, MMA is obtained as the final product from the third material stream, and the waste with low content of residual formaldehyde is recovered from the eighth material stream.
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