The Synthesis of Poly(arylene ether)s in Solution at Pilot-Plant Scale with Control over Molecular Weight and End-Group Composition

2002 ◽  
Vol 6 (5) ◽  
pp. 714-720 ◽  
Author(s):  
Timothy P. Bender ◽  
Richard A. Burt ◽  
Gord K. Hamer ◽  
Christine DeVisser ◽  
Paul F. Smith ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Pilot Plant ◽  
Group Composition ◽  
Arylene Ether ◽  
Pilot Plant Scale ◽  
End Group

Control of Alfin Rubber Molecular Weight

1965 ◽  
Vol 38 (1) ◽  
pp. 103-111 ◽  
Author(s):  
V. L. Hansley ◽  
H. Greenberg
Keyword(s):  
Molecular Weight ◽  
Pilot Plant ◽  
Continuous Processing ◽  
Molecular Weights ◽  
Solution Type ◽  
Pilot Plant Scale ◽  
Heat Build Up ◽  
Derivatives Of

Abstract Control of molecular weight of alfin catalyzed diene polymers has been demonstrated for polymers of butadiene, isoprene, styrene, piperylene and combinations of these. The 1,4-dihydro derivatives of benzene and naphthalene are effective molecular weight moderators. The known microstructure of alfin polymers remains unchanged with the use of these agents. Molecular weight controlled alfin gums process readily on standard rubber machinery. Oil extenders or softeners, although not necessary, are easily incorporated. The feasibility of continuous processing has been demonstrated for the production of catalyst, moderators and polymers on pilot plant scale. A wide series of polymers and copolymers at predetermined molecular weights and compositions have been produced in the same pilot plant. Alfin polybutadiene with limited amounts of styrene is essentially a solution type SBR. Alfin copolymers with styrene and/or isoprene have undergone preliminary road tests in tires. Wear and heat build-up data indicate performance to be intermediate between SBR and polybutadiene.

scholarly journals Production of a PET//LDPE Laminate Using a Reversibly Crosslinking Packaging Adhesive and Recycling in a Small-Scale Technical Plant

Recycling ◽  
2021 ◽  
Vol 6 (3) ◽  
pp. 47
Author(s):  
Katharina M. A. Kaiser ◽  
Tanja Ginzinger
Keyword(s):  
Molecular Weight ◽  
Pilot Plant ◽  
Alder Reaction ◽  
Diels Alder ◽  
Infrared Spectrometry ◽  
Small Scale ◽  
Scanning Calorimetry ◽  
Melt Index ◽  
Diels Alder Reaction ◽  
Pilot Plant Scale

Multilayer packaging is an important part of the packaging market, but it is not recyclable with conventional methods since it is made of different thermodynamically immiscible materials. In this work, it was shown that it is possible to produce a PET//LDPE laminate in a pilot plant for lamination by using an adhesive consisting of maleimide- and furan-functionalized polyurethane prepolymers that cure through the Diels–Alder reaction. The material could then be delaminated in a small-scale recycling plant using a solvent-based recycling process by partially opening the Diels–Alder adducts through the influence of temperature. The PET and LDPE could be recovered without any adhesive residues before each material was regranulated, and in the case of the PE, a film was produced via cast film extrusion. The obtained PET granulate exhibited a slight, approximately 10%, decrease in molecular weight. However, since small amounts of LDPE could not be separated, compatibilization would still be required here for further use of the material. The obtained LDPE film was characterized by means of infrared spectrometry, differential scanning calorimetry, tensile testing, determination of the melt index, and molecular weight. The film showed lower crosslinking than usual for LDPE recycling and exhibited good mechanical properties. In this work, it was thus shown that upscaling of the laminate production with the modified adhesive and also its recycling at the pilot plant scale is possible and thus could be an actual option for recycling multilayer packaging.

Integrated treatment of landfill leachates including electrooxidation at pilot plant scale

2009 ◽  
Vol 166 (2-3) ◽  
pp. 1530-1534 ◽  
Author(s):  
Ane Urtiaga ◽  
Ana Rueda ◽  
Ángela Anglada ◽  
Inmaculada Ortiz
Keyword(s):  
Pilot Plant ◽  
Integrated Treatment ◽  
Landfill Leachates ◽  
Pilot Plant Scale

Partial degradation of five pesticides and an industrial pollutant by ozonation in a pilot-plant scale reactor

2006 ◽  
Vol 138 (2) ◽  
pp. 363-369 ◽  
Author(s):  
M MALDONADO ◽  
S MALATO ◽  
L PEREZESTRADA ◽  
W GERNJAK ◽  
I OLLER ◽  
...  
Keyword(s):  
Pilot Plant ◽  
Pilot Plant Scale ◽  
Partial Degradation ◽  
Scale Reactor

Experimental Development at a Pilot Plant Scale of a Reduced Activation Ferritic/Martensitic RAFM Steel, Asturfer®

2010 ◽  
Vol 73 ◽  
pp. 36-40 ◽  
Author(s):  
Ana Morán ◽  
Rubén Coto ◽  
Javier Belzunce ◽  
Jose Manuel Artímez
Keyword(s):  
Stainless Steels ◽  
Pilot Plant ◽  
Austenitic Stainless Steels ◽  
Martensitic Steels ◽  
Font Size ◽  
Experimental Development ◽  
Pilot Plant Scale ◽  
Fusion Material ◽  
Rafm Steel ◽  
The Eu

<span><span style="font-family: Times New Roman;">Ferritic/Martensitic steels, with chromium contents ranging between 9 and 12%, were introduced into fusion material programs due to their better creep resistance and excellent thermal and nuclear properties compared to austenitic stainless steels. Reduced activation ferritic/martensitic (RAFM) steels are considered promising candidates for the test blanket modules of the future International Thermonuclear Experimental Reactor (ITER), being EUROFER steel is the EU reference material. It is a 9 % Cr RAFM steel which exhibits a tempered martensitic <span style="font-family: Times New Roman;">microstructure and presently allows operation up to 550 </span><span style="font-family: Cambria Math;">⁰</span><span style="font-family: Times New Roman;">C. This paper shows the work carried out</span></span><span style="font-family: Times New Roman;"><span style="font-family: Times New Roman;"> to develop at a pilot plant scale a Reduced Activation Ferritic/Martensitic (RAFM) steel, Asturfer </span><span style="font-family: Times New Roman; font-size: xx-small;"><span style="font-family: Times New Roman; font-size: xx-small;">®</span></span><span style="font-family: Times New Roman;">,</span></span><span style="font-family: Times New Roman;"> with chemical composition and mechanical properties very close to EUROFER steel. </span>

scholarly journals Production of potential probiotic Spanish-style green table olives at pilot plant scale using multifunctional starters

2014 ◽  
Vol 44 ◽  
pp. 278-287 ◽  
Author(s):  
F. Rodríguez-Gómez ◽  
V. Romero-Gil ◽  
J. Bautista-Gallego ◽  
P. García-García ◽  
A. Garrido-Fernández ◽  
...  
Keyword(s):  
Pilot Plant ◽  
Table Olives ◽  
Pilot Plant Scale
Sign in / Sign up

Export Citation Format

Share Document