Results 251 to 260 of about 106,957 (303)

Densities of collagen dehydrated by some organic solvents

Experientia, 1966
Der Einfluss von organischen Losungsmitteln auf die Dichteveranderungen des Kollagens wurde gepruft. Methanol und Butanol fuhrt zur Strukturauflockerung, Aceton und Dioxan zur Strukturverdichtung.
V, Podrazký, V, Sedmerová
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Solvent Dependent Dehydrating Condensation of Benzylsulfonyl Acetic Acids

Synthetic Communications, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
N. Srinivasa Reddy, E. Premkumar Reddy, M. V. Ramana Reddy   +2 more
openaire   +1 more source

Solvent Dehydration and Separation of Native Asphalt

Chemistry and Technology of Fuels and Oils, 2001
A combined process for dehydration, deasphalting, and acetone fractionation of Ashal'chinsk native asphalt was developed and investigated. Technology was proposed for combined solvent preparation and separation of natural asphalt and the basic characteristics of the process were determined.
A.Yu. Kopylov, V. G. Kozin, I. Sh. Khusnutdinov   +2 more
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Solvent‐Free Thermal Dehydration of Pentitols on Zeolites

Journal of Carbohydrate Chemistry, 2004
Abstract Dehydration of D‐arabinitol, ribitol, and xylitol at high temperature in the presence of molecular sieves without solvent in an argon atmosphere is described. Products arising after the dehydration–cyclization (cyclodehydration) reaction with retention or inversion of the configuration of asymmetric carbon atoms, were observed.
Maria Kurszewska, Eugenia Skorupowa, Janusz Madaj, Andrzej Wiśniewski   +3 more
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Revision Myringoplasty with Solvent‐Dehydrated Human Dura Mater (Tutoplast)

Otolaryngology–Head and Neck Surgery, 2001
OBJECTIVESSeveral grafting materials have been used in the reconstruction of the perforations of the tympanic membrane. The use of dehydrated dura homografts as a substitute for the tympanic membrane has not been fully documented. On the other hand, revision surgery is more critical in terms of patients' expectations.
S, Yetişer, F, Tosun, B, Satar
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Solvent Dehydrated Costal Cartilage: Evaluation in a Rabbit Model

Journal of Craniofacial Surgery, 2005
An experimental study has been performed on 30 New Zealand rabbits to compare autogenous cartilage harvested from the rabbits' auricles, bone graft harvested from the iliac crest of the rabbits, and the commercially available solvent dehydrated human costal cartilage (SDHCC) grafts, each measuring 1 x 1 cm.
Nezih, Sungur, Uğur, Koçer, Afşin, Uysal, Cafer, Arslan, Yüksel, Kankaya, Cenk, Sökmensüer, Lale K, Sökmensüer   +6 more
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The solvent-free thermal dehydration of tetritols on zeolites

Carbohydrate Research, 2000
A new alditol dehydration method at high temperatures, in the presence of molecular sieves without solvent in an argon atmosphere, is described. Investigations on tetritols have been carried out. Products arising after the intramolecular and intermolecular elimination of water, with retention or inversion of the configuration of asymmetric carbon atoms,
M, Kurszewska, E, Skorupa, R, Kasprzykowska, P, Sowiński, A, Wiśniewski   +4 more
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Natural Gas Dehydration with Ionic-Liquid-Based Mixed Solvents

ACS Sustainable Chemistry & Engineering, 2021
In this work, a mixed absorbent of an ionic liquid (IL) and triethylene glycol (TEG) is first proposed for natural gas (NG) dehydration.
Chengmin Gui, Ruisong Zhu, Guoxuan Li, Chengna Dai, Gangqiang Yu, Zhigang Lei   +5 more
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The solvent-free thermal dehydration of hexitols on zeolites

Carbohydrate Research, 2002
Dehydration of galactitol, D-glucitol and D-mannitol at high temperature in the presence of molecular sieves without solvent under an argon atmosphere is described. Cyclodehydration products with retention or inversion of the configuration at asymmetric carbon atoms, were observed. Reaction of galactitol yielded racemic 1,4-anhydrogalactitol in a first
Maria, Kurszewska, Eugenia, Skorupowa, Janusz, Madaj, Antoni, Konitz, Wiesław, Wojnowski, Andrzej, Wiśniewski   +5 more
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Dehydration of glycine in mixed solvents

Journal of Structural Chemistry, 2012
The analysis of changes in the partial volume of glycine $\Delta \bar V^0 $ in solutions of substances that have a different effect on water structure is presented.
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