106-62-7Relevant articles and documents
A new route for the synthesis of propylene oxide from bio-glycerol derivated propylene glycol
Yu, Zhengxi,Xu, Lei,Wei, Yingxu,Wang, Yingli,He, Yanli,Xia, Qinghua,Zhang, Xinzhi,Liu, Zhongmin
, p. 3934 - 3936 (2009)
The synthesis of propylene oxide from propylene glycol, a derivative of bio-glycerol, was firstly realized in the presence of alkali-loaded silica catalysts to achieve 44% conversion and 70% selectivity.
Biomass-derived Cu/porous carbon for the electrocatalytic synthesis of cyclic carbonates from CO2and diols under mild conditions
Zhang, Jing-Jie,Li, Shi-Ming,Shi, Yi,Hu, Qiao-Li,Wang, Huan,Lu, Jia-Xing
, p. 11817 - 11823 (2020)
Biomass-derived Cu/porous carbon (Cu/PC) composites were facilely assembled by using a one-pot hydrothermal approach combined with calcination under a N2 atmosphere, and were used for the electrocatalytic synthesis of cyclic carbonates from CO2 and diols at room temperature and normal pressure without any other catalysts. The results show that the Cu/PC composites with large specific surface areas (SBET > 279 m2 g-1) and high pore volumes (Vp > 0.47 cm3 g-1) possess good catalytic activity for CO2 electrocatalytic fixation. The Cu nanoparticles were uniformly dispersed in the PC, resulting in a remarkable increase in the catalytic activity of the composite compared with those of pure PC and Cu sheets. In addition, the Cu content influenced the electrocatalytic activity. Among the materials used, Cu/PC-III was the best cathode as it had a 46.3percent electrosynthesis yield of propylene carbonate, wide application prospects and was suitable for the synthesis of other o-diols. The yield of 4-propyl-1,3-dioxolan-2-one reached 57.8percent. The prepared composites also displayed satisfactory reusability, and the yield was not reduced even after six cycles of use. These results reveal that the composites could be effectively used for the electrosynthesis of cyclic carbonates from CO2 and diols under mild conditions.
Probe medium and method of producing the same
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, (2008/06/13)
When a probe medium is spotted on a substrate, a probe can be effectively and stably immobilized on the substrate. The probe medium includes a probe capable of specifically binding to a target substance, a medium containing an organic solvent, and a substance for solubilizing the probe in the organic solvent.
Cosmetic formulations of having high aqueous solubility and low flash points
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, (2008/06/13)
The invention provides compositions comprising a) at least one quaternary ammonium compound, and b) at least one polyhydric alcohol having 5 to 12 carbon atoms. The compositions have low setting points, good solubility and dispersibility in aqueous media and a low flash point.
PROCESS FOR SPLITTING WATER-SOLUBLE ETHERS
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, (2008/06/13)
A process for production of 1,3-propanediol including the steps: (a) hydrating acrolein in the presence of an acid hydration catalyst; (b) catalytically hydrogenating the reaction mixture of step (a), which reaction mixture comprises 3-hydroxypropionaldehyde and is freed of unreacted acrolein; (c) refining the reaction mixture of step (b) containing water, 1,3-propanediol and the by-products boiling higher than 1,3-propanediol; and (d) treating 4-oxa-1,7-heptanediol to form 1,3-propanediol by (1) removing a boiler sump comprising 4-oxa-1,7-heptanediol from the refining step (c), (2) treating the boiler sump in an aqueous solution in the presence of an acid catalyst at about 200 to about 300° C. to form a solution comprising 1,3-propanediol, (3) neutralizing the solution obtained is step (2), and returning the neutralized solution from step (3) to the refining step (c). In addition, a process for splitting oligomeric water-soluble ether comprising: (a) treating an aqueous solution comprising oligomeric water-soluble ether in the presence of homogeneous acid catalyst at a temperature of from about 200 to about 300 ° C. to form the monomer of the oligomeric water-soluble ether; and (b) neutralizing the solution obtained in step (a),
Manufacture and use of a herbicide formulation
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, (2008/06/13)
The invention pertains to a method for manufacture and use of a herbicidal formulation containing glyphosate and an acid. Specifically, phosphoric, citric, acetic, propionic, and phosphorous acid and their corresponding salts have been useful in this application. The acid based formulations offer lower glyphosate use rates than standard formulations.
Manufacture and use of a herbicide formulation
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, (2008/06/13)
The invention pertains to a method for manufacture and use of a herbicidal formulation of chlorinated carboxylic acid herbicides. A number of different solvents have been found useful in this application. Furthermore, the use of surfactants that act as solvents for the acid herbicides has been discovered. These formulations have shown superior herbicidal activity when compared to standard salt and ester forms.
Millimeter-wave spectroscopy of vibrationally-excited NaCCH (X(1)Σ(+)) and MgCCH (X(2)Σ(+)): the v(5) bending mode
Brewster, M. A.,Apponi, A. J.,Xin, J.,Ziurys, L. M.
, p. 411 - 422 (2008/10/08)
Pure rotational spectra of NaCCH (X(1)Σ(+)) and MgCCH (X(2)Σ(+)) have been recorded in their ground state and v(5) vibrational level, the metal-C-C bend, in the range 315-525 GHz using millimeter-wave direct absorption techniques. This data set complements previous measurements. For NaCCH, rotational transitions were recorded for v(1)(5)=0(0), 1(1), 2(2), 2(0), 3(3), and 4(4) levels, and for the 0(0) states of NaCCD and Na(13)CCH. Transitions originating in the 1(1), 2(0), and 2(2) states of MgCCH were additionally observed. Rotational, l-type doubling, and vibration-rotation parameters have been determined for both species, as well as estimates of the ω(5) bending frequency.
Separation of methylene chloride from tetrahydrofuran by extractive distillation
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, (2008/06/13)
Methylene chloride is difficult to separate from tetrahydrofuran by conventional distillation or rectification because of the proximity of their vapor pressures. Methylene chloride can be readily separated from tetrahydrofuran by extractive distillation. Effective agents are 1-pentanol, 1,2-butanediol and 3-nitrotoluene.
Method for blood coagulation on hard tissues
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, (2008/06/13)
A method of using resorbable waxes for coagulation of blood on endogenous hard tissue, especially bone, which waxes consist of waxy polyester-oligomers of hydroxybarboxylic acids which are viscous to solid at body temperature. On the basis of their structure, these waxes are degradable by endogenous metabolic mechanism, wherein the rate of degradation can be adjusted.
