Results 301 to 310 of about 74,294 (347)
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Separation of plant polyphenolics by chromatography on a boronate resin
Journal of Chromatography A, 1981m-Aminophenylboronic acid attached to polyacrylamide beads by a short aliphatic chain strongly and selectively binds vicinal dihydroxyphenyl substituted compounds at pH 7–8. At lower pH these substances are released quantitatively thus affording a simple and rapid method for separation and purification of catecholic materials.
Linda B. Rabin, Carl A. Elliger
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Standardisation of resin plant
Pigment & Resin Technology, 1981For many years Hygrotherm Engineering Ltd has been designing and building resin plants for installation worldwide. They have covered a wide range of products and operating conditions.
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Thermal fluid heating systems for resin plants
Pigment & Resin Technology, 1979The heating of resin kettles has traditionally been achieved using steam, induction heating or direct firing. In recent years, thermal fluid heating has been a further option available with many advantages to offer. We will consider these alternatives in turn.
MIChemE, J.A. Rigby, BTechCEng
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Deuterium exchangeability in modern and fossil plant resins
Geochimica et Cosmochimica Acta, 2018Abstract Deuterium exchange experiments on modern and fossil plant resins (amber) were conducted to assess to what extent diagenetic alteration can overprint the stable hydrogen (δ2H) and carbon (δ13C) isotopic composition of these materials. Pairs of resins and amber fragments were placed together with deuterated water in sealed quartz-glass tubes ...
Karlis Muehlenbachs +4 more
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Engineering solutions to resin plant problems
Pigment & Resin Technology, 1980Resin plant generally comprises a reaction vessel, a heating system, a cooling system, equipment for the supply of chemicals to the reactor and ancillary vessels for the handling of by‐products of reaction.
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Plant Resins—Their Formation, Secretion and Possible Functions
1979Plant resins pose interesting ecological, taxonomic, physiological, and biochemical problems. This chapter briefly describes the resins in chemical terms and presents their contrast with certain other plant products. Resins are nonvolatile products of plants, from which they exude naturally (surface resins) or can be obtained by incision or infection ...
Arthur J. McComb +3 more
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ChemInform Abstract: Chemical Signatures of Fossilized Resins and Recent Plant Exudates.
ChemInform, 2008AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Joseph B. Lambert +2 more
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Process computer applications in resin plants
IFAC Proceedings Volumes, 1977In the chemical industry many resin-type products are manufactured discontinuously in batch reactors. Besides closed loop control of such process variables as temperature and pressure a main control reauirement is time- and event-dependent on-off control through the the sequential processing stapes, fuch processes were formerly controlled using ...
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Electron microscopy of resin-free sections of plant cells
Protoplasma, 1983A technique for producing resin-free sections of plant roots for observation with the high voltage electron microscope is described. The resulting images have high contrast and reveal a three-dimensional filamentous network in the cytoplasm and nucleoplasm. This network is briefly compared with the microtrabecular lattice found in animal cells.
B. E. Juniper, Chris Hawes, J. C. Horne
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U.K.'s first petroleum resins plant
Pigment & Resin Technology, 1975A 10,000 tonne/year petroleum resins plant — the first in the United Kingdom — is now in production at ICl's Wilton Works, Cleveland (formerly Teesside).
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