The Piancatelli rearrangement of non-symmetrical furan-2,5-dicarbinols for the synthesis of highly functionalized cyclopentenones

Organic Chemistry Frontiers ◽

10.1039/d1qo00268f ◽

2021 ◽

Author(s):

Fanny CACHEUX ◽

Géraldine LE GOFF ◽

Jamal Ouazzani ◽

Jerome Bignon ◽

Pascal Retailleau ◽

...

Keyword(s):

Raw Material ◽

Microwave Activation ◽

Renewable Raw Material

Substituted and non-symmetrical furan-2,5-dicarbinols were readily prepared from hydroxymethylfurfural (HMF), a renewable raw material from biomass. The Piancatelli rearrangement of these furan-2,5-dicarbinols, catalyzed by DyCl3 and under microwave activation, affords...

Download Full-text

Bio-Oil as a Potential Biomass-Derived Renewable Raw Material for Bio-Phenol Production

Chemical Engineering & Technology ◽

10.1002/ceat.201700625 ◽

2018 ◽

Vol 41 (5) ◽

pp. 1027-1034 ◽

Cited By ~ 11

Author(s):

Lijuan Zhu ◽

Feng Jin ◽

Minghui Fan ◽

Junxu Liu ◽

Rui Chang ◽

...

Keyword(s):

Raw Material ◽

Bio Oil ◽

Renewable Raw Material

Download Full-text

Effect of temperature on acid hydrolysis of Jerusalem artichoke as raw material for ethanol production

Acta periodica technologica ◽

10.2298/apt1344279r ◽

2013 ◽

pp. 279-287 ◽

Cited By ~ 1

Author(s):

Radojka Razmovski ◽

Vesna Vucurovic ◽

Uros Miljic ◽

Vladimir Puskas

Keyword(s):

Hold Time ◽

Jerusalem Artichoke ◽

Raw Material ◽

Effect Of Temperature ◽

Industrial Biotechnology ◽

Microbial Conversion ◽

Experimental Conditions ◽

Theoretical Yield ◽

Renewable Raw Material ◽

Layer Chromatography

Jerusalem artichoke (JA) is a low-requirement crop, which does not interfere with food chain, and is a promising carbon source for industrial fermentation. Microbial conversion of such a renewable raw material to useful products, such as ethanol, is an important objective in industrial biotechnology. In this study, ethanol was efficiently produced from the hydrolyzates of JA obtained at different pH values (pH 2.5, pH 3.0 and pH 3.5), temperature (120, 130, 132 and 134?C) and hold time (30 and 60 min) by Saccharomyces cerevisiae. The efficient degradation of JA by HCl under certain experimental conditions was confirmed by thin-layer chromatography. Ethanol concentration of 7.52% (w/w), which corresponds to 93.89 % of the theoretical yield is achieved by ethanol fermentation of JA hydrolyzate obtained at pH 2.5.

Download Full-text

Possible Use Of Hemp And Wood In Production Of The Heat Insulation Materials

Environment Technology Resources Proceedings of the International Scientific and Practical Conference ◽

10.17770/etr2011vol1.883 ◽

2015 ◽

Vol 1 ◽

pp. 323

Author(s):

Martins Andzs ◽

Voldemars Skrupskis

Keyword(s):

Moisture Content ◽

Water Absorption ◽

Heat Insulation ◽

Raw Material ◽

Insulation Material ◽

Heat Transmission ◽

Insulation Materials ◽

Wood Fibres ◽

Heat Insulation Material ◽

Renewable Raw Material

Obtaining of a new ecological heat insulation material from always renewable raw material in nature, wood and hemp, derived from wood and hemp fibre remains left from the production process. The study was carried out to find hemp wood parts (shives), fiber, and material first possible compositions together with wood fibres, to produce heat insulation materials. The use of the heat insulation material would be meant for dwelling and recreation houses. In the present research the main characteristics of these materials are determined: moisture content, density, water absorption, as well as the coefficient of heat transmission.

Download Full-text

Soy bean seed-coat, potential renewable raw-material for alcohol production

Semina Ciências Biológicas e da Saúde ◽

10.5433/1679-0367.1984v4n15p491 ◽

1984 ◽

Vol 4 (15) ◽

pp. 491

Author(s):

Kailash Chandra Srivastava

Keyword(s):

Seed Coat ◽

Raw Material ◽

Bean Seed ◽

Alcohol Production ◽

Renewable Raw Material

Download Full-text

Synthesis of Acid Polyols As a Feedstock to Produce Flexible Polyurethanes and Their Effect on the Income Level of Furniture Craftsmen

PROZIMA (Productivity Optimization and Manufacturing System Engineering) ◽

10.21070/prozima.v2i2.2202 ◽

2019 ◽

Vol 2 (1) ◽

pp. 39

Author(s):

Andi Budirohmi

Keyword(s):

Fourier Transform ◽

Fatty Acid ◽

Raw Materials ◽

Raw Material ◽

Polymerization Process ◽

Hydroxyl Group ◽

Infra Red ◽

Renewable Raw Material ◽

Shoe Soles ◽

Alternative Feedstock

Polyuretanes are widely used as elastomers, coatings, adhesivesand binders,interior and exterior cars, furniture,shoe soles, carpets, rigit and flexible foams, membrane materials as well as constuction materials .The production of polyurethanes is largely derived from polyols derived from petroleum . Howover, petroleum is a non- renewable raw material . Thus it is necessary to look alternative feedstock for the manufacture of polyol as a polyurethane raw material. Synnthesis polyurethane by polymerization process using polyol volume based on polyol oleat acid polypropylenglycol ( PPG ) in order to know whether fatty acid can be used as raw materials of polyurethane manufacture.From the result of the study. Based on Fourier Transform Infra Red ( FTIR), showed,that the product produced is polyol with obtained hydroxyl group ( OH group )with hydroxylnumber is 129,81 mg KOH / g and 157,60 mg KOH / g sample of 70

Download Full-text

Preliminary evaluation of the physical properties of red ceramic incorporated with solid residue

MRS Advances ◽

10.1557/adv.2018.587 ◽

2018 ◽

Vol 3 (61) ◽

pp. 3575-3579

Author(s):

Francine M. Nunes ◽

Eduarda M. Rangel ◽

Fernando M. Machado ◽

Rubens Camaratta ◽

Letícia P. Cardoso ◽

...

Keyword(s):

Physical Properties ◽

Linear Shrinkage ◽

Raw Material ◽

Preliminary Evaluation ◽

Solid Residue ◽

X Ray Diffraction ◽

Linear Contraction ◽

X Ray ◽

Test Pieces ◽

Renewable Raw Material

AbstractThe food processing industry highlights the daily generation of large amounts of eggshell solid residue. In this way, this residue becomes a non renewable raw material to be reused as an additive in red ceramics, in order to reduce the volume of disposal to the environment and improve the physical properties of the product. The objective of this work was to evaluate the forming moisture, linear shrinkage of drying and shrinkage of drying burning of ceramic test pieces (CS’s) with formulations with 2% and 3% of white eggshell residue (ER) incorporated in clay. The clay and ER were collected in the city of Pelotas-RS. The ER sample was analyzed by X-Ray Fluorescence (XRF) and X-Ray Diffraction (XRD). After pressing, natural and artificial drying was carried out and the CS’s were burned. These were evaluated through normative parameters C-020/95, C-021/95 and C-026/95. The values obtained for the forming moisture were between 5.82 and 8.78%, for the linear shrinkage of drying between 0.10 and 0.43% and, for the linear contraction burning between -0.29 and 0.08%. The results showed that the addition of ER to the ceramic mass helped in the reduction of the forming moisture and the linear shrinkage of the ceramic test pieces.

Download Full-text