BIOBASED DEICING/ANTI-ICING FLUIDS

    公开(公告)号:CA2793765C

    公开(公告)日:2015-11-24

    申请号:CA2793765

    申请日:2003-10-28

    Abstract: A nontoxic deicing/anti-icing fluid includes a biobased freezing point depressant, a surfactant, an antioxidant, and water. The fluid has an LD50 greater an about 10,000 mg/L. Another deicing/anti-icing fluid includes a biobased freezing point depressant, a vinylpyrrolidone polymer having a molecular weight between about 10,000 and about 700,000, and water. Another deicing/anti-icing fluid includes a biobased freezing point depressant, a nonionic surfactant selected from the polyoxyalkylene ethers, an antioxidant, and water. Another deicing/anti-icing fluid includes a biobased freezing point depressant, a surfactant, a food grade material that functions as an antioxidant, and water. A further deicing/anti-icing fluid includes a biobased freezing point depressant, a material that functions as both a buffer and a freezing point depressant, and water.

    Catalysts and process for hydrogenolysis of sugar alcohols to polyols

    公开(公告)号:AU2001227713A8

    公开(公告)日:2001-09-17

    申请号:AU2771301

    申请日:2001-01-08

    Abstract: The present invention provides a process for preparation of low molecular weight polyols from high molecular weight polyols in a hydrogenolysis reaction under elevated temperature and hydrogen pressure. The process comprises providing in a reaction mixture the polyols, a base, and a metal catalyst prepared by depositing a transition metal salt on an inert support, reducing the metal salt to the metal with hydrogen, and passivating the metal with oxygen, and wherein the catalyst is reduced with hydrogen prior to the reaction. In particular, the process provides for the preparation of glycerol, propylene glycol, and ethylene glycol from sugar alcohols such as sorbitol or xylitol. In a preferred process, the metal catalyst comprises ruthenium which is deposited on an alumina, titania, or carbon support, and the dispersion of the ruthenium on the support increases during the hydrogenolysis reaction.

    BIOBASED DEICING/ANTI-ICING FLUIDS

    公开(公告)号:CA2503859C

    公开(公告)日:2013-01-29

    申请号:CA2503859

    申请日:2003-10-28

    Abstract: A nontoxic deicing/anti-icing fluid includes a biobased freezing point depressant, a surfactant, an antioxidant, and water. The fluid has an LD50 greater than about 10,000 mg/L. Another deicing/anti-icing fluid includes a biobased freezing point depressant, a vinylpyrrolidone polymer having a molecular weight between about 10,000 and about 700,000, and water. Another deicing/anti-icing fluid includes a biobased freezing point depressant, a nonionic surfactant selected from the polyoxyalkylene ethers, an antioxidant, and water. Another deicing/anti-icing fluid includes a biobased freezing point depressant, a surfactant, a food grade material that functions as an antioxidant, and water. A further deicing/anti-icing fluid includes a biobased freezing point depressant, a material that functions as both a buffer and a freezing point depressant, and water.

    8.
    发明专利
    未知

    公开(公告)号:AT475646T

    公开(公告)日:2010-08-15

    申请号:AT02756233

    申请日:2002-06-17

    Abstract: The present invention provides methods for making N-methylpyrrolidine and analogous compounds via hydrogenation. Novel catalysts for this process, and novel conditions/yields are also described. Other process improvements may include extraction and hydrolysis steps. Some preferred reactions take place in the aqueous phase. Starting materials for making N-methylpyrrolidine may include succinic acid, N-methylsuccinimide, and their analogs.

    METHODS OF MAKING PYRROLIDONES
    9.
    发明专利

    公开(公告)号:MY134290A

    公开(公告)日:2007-11-30

    申请号:MYPI20034665

    申请日:2003-12-05

    Abstract: THE PRESENT INVENTION PROVIDES METHODS FOR MAKING N-METHYLPYRROLIDINE AND ANALOGOUS COMPOUNDS VIA HYDROGENATION. NOVEL CATALYSTS FOR THIS PROCESS, AND NOVEL CONDITIONS/YIELDS ARE ALSO DESCRIBED. OTHER PROCESS IMPROVEMENTS MAY INCLUDE EXTRACTION AND HYDROLYSIS STEPS. SOME PREFERRED REACTIONS TAKE PLACE IN THE AQUEOUS PHASE. STARTING MATERIALS FOR MAKING N-METHYLPYRROLIDINE MAY INCLUDE SUCCINIC ACID, N-METHYLSUCCINIMIDE, AND THEIR ANALOGS.

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