IMPROVED PROCESS FOR TREATING LIGNIN
    4.
    发明申请

    公开(公告)号:WO2023287396A1

    公开(公告)日:2023-01-19

    申请号:PCT/US2021/041350

    申请日:2021-07-13

    Abstract: This invention provides improvements to processes for making granular lignin from black liquor. One of the improvements is that the use of a pre-carbonation column reduces the CO2 flow into the sparger of a carbonation column. The pre-carbonation column is used to reduce the pH of the black liquor to about 12. Another improvement is that it has been found that coalescing droplets into a bulk liquid-lignin phase can be enhanced by placing the exit of the carbonation column at or slightly beneath carbonated black liquor/liquid-lignin interface. It has also been found that operating the carbonation settler at a low pressure and pumping the liquid- lignin from the carbonation settler to the acidification reactor operating at a higher pressure allows recycling the vent gas from the acidification reactor to the pre-carbonation column. The invention also provides for a vent gas absorber.

    A METHOD FOR PROVIDING A FILTERED SPINNING DOPE

    公开(公告)号:WO2023281058A1

    公开(公告)日:2023-01-12

    申请号:PCT/EP2022/069071

    申请日:2022-07-08

    Inventor: HEDLUND, Artur

    Abstract: The present invention describes a method of dissolving cellulose, said method comprising: dissolving cellulose in an alkali solution;-filtering the dissolved cellulose, thereby forming a filtered dissolved cellulose solution and a filter reject;- mixing said filter reject having a first viscosity value with a dissolution liquid having a second viscosity value, wherein the second viscosity value is lower than the first viscosity value, to provide a diluted reject stream having a third viscosity value being lower than the first viscosity value of the filter reject;and- separating inhomogeneities from the diluted reject stream.

    甲基丙烯酰化乳清蛋白水凝胶的制备方法及应用

    公开(公告)号:WO2022253107A1

    公开(公告)日:2022-12-08

    申请号:PCT/CN2022/095395

    申请日:2022-05-26

    Applicant: 浙江大学

    Abstract: 甲基丙烯酰化乳清蛋白水凝胶的制备方法,包括以下步骤:配制浓度为1~10g/100ml的乳清蛋白粉原液,先向乳清蛋白粉原液中加入甲基丙烯酸酐,然后调节pH至6.0~10.0,10~25℃持续搅拌反应3~24h;所得反应后溶液用去离子水稀释后透析48~72h,将透析后的截留液冻干,得冻干粉;在去离子水加入冻干粉,再于避光条件下加入光引发剂,用紫外线或可见光照射10~60s后,得水凝胶。以及上述甲基丙烯酰化乳清蛋白水凝胶在化妆品中的应用。

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