US 11,898,115 B2 · Nitrogen-containing terpolymer biodiesel solidification point depressant, and preparation method and application thereof

Abstract

The present invention relates to a nitrogen-containing terpolymer biodiesel solidification point depressant, and a preparation method and application thereof. The preparation method includes the following steps: 1) respectively preparing methylacrylic acid high carbon ester and N-hexadecyl methacrylamide; 2) adding the methylacrylic acid high carbon ester, the N-hexadecyl methacrylamide, and vinyl acetate to a solvent, and adding an initiator for polymerization to yield a methylacrylic acid high carbon ester-N-hexadecyl methacrylamide-vinyl acetate terpolymer, i.e., a nitrogen-containing terpolymer biodiesel solidification point depressant. Compared with the prior art, the nitrogen-containing terpolymer biodiesel solidification point depressant of the present invention solves the problem of poor compatibility of single methylacrylic acid depressants, N-hexadecyl methacrylamide and vinyl acetate are introduced to extend the composition of the depressant and improve a solidification point depression effect, the preparation process of the depressant is simple, and the experimental operation is convenient.

Claims6

Dependent claims

A preparation method of a nitrogen-containing terpolymer biodiesel solidification point depressant, comprising the following steps:

1) respectively preparing methylacrylic acid high carbon ester and N-hexadecyl methacrylamide;
and
2) adding the methylacrylic acid high carbon ester, the N-hexadecyl methacrylamide, and vinyl acetate to a first solvent, and adding an initiator for polymerization to yield a methylacrylic acid high carbon ester-N-hexadecyl methacrylamide-vinyl acetate terpolymer, i.e., a nitrogen-containing terpolymer biodiesel solidification point depressant;
wherein the step of preparing methylacrylic acid high carbon ester comprises:
adding a mixture of methylacrylic acid, a higher alcohol, and a polymerization inhibitor to a second solvent,
heating the mixture to 55-65° C. for full dissolution, and
adding a catalyst for catalysis to yield methylacrylic acid high carbon ester;
and
wherein the step of preparing N-hexadecyl methacrylamide comprising:
adding hexadecylamine to a third solvent,
adding methacryloyl chloride to react with the hexadecylamine at 55-65° C. for 1.5-2.5 h, and
drying the reaction product to yield N-hexadecyl methacrylamide.

9 more elements

Dependencies are inferred from the claim text.

Nitrogen-containing terpolymer biodiesel solidification point depressant, and preparation method and application thereof

Life of this patent

Nitrogen-containing terpolymer biodiesel solidification point depressant, and preparation method and application thereof

Life of this patent

Abstract

Claims6