[EN] METHOD OF PRODUCING FURAN CARBOXYLATES FROM ALDARIC ACIDS BY USING SOLID HETEROGENEOUS CATALYSTS<br/>[FR] PROCÉDÉ DE PRODUCTION DE CARBOXYLATES DE FURANE À PARTIR D'ACIDES ALDARIQUES FAISANT APPEL À DES CATALYSEURS HÉTÉROGÈNES SOLIDES
申请人:TEKNOLOGIAN TUTKIMUSKESKUS VTT OY
公开号:WO2016166421A1
公开(公告)日:2016-10-20
According to an example aspect of the present invention, there is provided a method of producing furan carboxylates from aldaric acids in the presence of a solid heterogeneous catalyst and a solvent with short reaction time. The feedstock for the production is a stable compound, which allows industrial scaling of the process. Solid acid catalyst and sustainable solvent provide considerable reduction of toxic waste compared to traditional methods, and recyclability.
Disclosed is a method of preparing adipic acid from d-glucaro-1,4:6,3-dilactone, particularly using a rhenium catalyst and a noble metal catalyst. Further the method may include using an environmentally friendly solvent such as water. Thus, the obtained adipic acid may have high purity as a final product and economic efficiency of the preparation process may be improved.
Tin (II) glucarate is found to be effective alone and in combination with other tin compounds for catalyzing the reaction of carboxylic acids such as furan-2,5-dicarboxylic acid, terephthalic acid and adipic acid with alcohols such as the C1-C3 alcohols.
[EN] PROCESS FOR PREPARING D-GLUCARO-6,3-LACTONE<br/>[FR] PROCÉDÉ DE PRÉPARATION DE D-GLUCARO-6,3-LACTONE
申请人:BASF SE
公开号:WO2018146122A1
公开(公告)日:2018-08-16
The presently claimed invention is directed to a process for preparing D-glucaro-6,3-lactone from a salt of D-glucaric acid.
目前所宣称的发明涉及从葡萄糖酸盐制备D-葡萄糖醛-6,3-内酯的过程。
METHOD FOR PRODUCING ADIPAMIDE AS INTERMEDIATE FOR PRODUCTION OF RAW MATERIAL FOR BIO-BASED NYLON
申请人:Hyundai Motor Company
公开号:US20200071262A1
公开(公告)日:2020-03-05
Disclosed is a method for producing adipamide, which may include the steps of: (a) reacting glucose, nitric acid (HNO
3
), sodium nitrite (NaNO
2
) and potassium hydroxide (KOH) to produce a glucaric acid potassium salt, (b) producing glucamide by reacting the glutaric acid potassium salt, with an acidic solution and removing a potassium ion from the glucaric acid potassium salt, (c) preparing an reaction admixture by adding the glucamide and a catalyst to hydrogen halide and acetic acid, and (d) treating the reaction admixture with hydrogen gas in a reactor thereby producing the adipamide.