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POLYSULFIDE PROCESS [3 records]
Record 1 - internal organization data 2012-04-18
Record 1, English
Record 1, Subject field(s)
- Pulp Preparation (papermaking)
Record 1, Main entry term, English
- H2S pretreatment
1, record 1, English, H2S%20pretreatment
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- hydrogen sulfide pretreatment 2, record 1, English, hydrogen%20sulfide%20pretreatment
proposal
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
Because of significant advantages, the kraft process has become established as the world's dominant pulping method. Nonetheless, the process also has some severe shortcomings.... Two add-on technologies date from pre-1970, the polysulfide process(used commercially on a limited basis) and the H2S pretreatment process(demonstrated at the pilot plant level). Both methods are successful in providing significant increases in pulp yield, up to 7 % on dry wood. Unfortunately, both methods are associated with increased concentration of sulfur in the chemical cycle, which exacerbates the odor problem. Additionally, both methods require further processing steps that increase the capital and operating costs of the pulp mill. 1, record 1, English, - H2S%20pretreatment
Record number: 1, Textual support number: 1 OBS
H2S should read H2S. 2, record 1, English, - H2S%20pretreatment
Record 1, French
Record 1, Domaine(s)
- Préparation de la pâte à papier
Record 1, Main entry term, French
- prétraitement au H2S
1, record 1, French, pr%C3%A9traitement%20au%20H2S
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- pré-traitement au H2S 2, record 1, French, pr%C3%A9%2Dtraitement%20au%20H2S
correct, masculine noun, obsolete
- prétraitement au sulfure d'hydrogène 1, record 1, French, pr%C3%A9traitement%20au%20sulfure%20d%27hydrog%C3%A8ne
proposal, masculine noun
- pré-traitement au sulfure d'hydrogène 3, record 1, French, pr%C3%A9%2Dtraitement%20au%20sulfure%20d%27hydrog%C3%A8ne
proposal, masculine noun, obsolete
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
La place prédominante qu'occupe le procédé kraft parmi les méthodes de mise en pâte utilisées dans le monde témoigne bien du nombre d'avantages marqués qu'il offre. Le procédé comporte néanmoins de graves inconvénients [...] La plupart des modifications proposées visent l'obtention d'une meilleure rétention des hydrates de carbone par une stabilisation des monomères de bouts de chaîne des polymères de la cellulose et des hémicelluloses [...] Deux méthodes bien connues, le procédé au polysulfure et le pré-traitement au H2S, assurent une amélioration marquée du rendement en pâte, mais elles ont malheureusement pour inconvénient d'entraîner une augmentation de la concentration de soufre dans le cycle chimique et donc, d'aggraver le problème causé par les mauvaises odeurs. 2, record 1, French, - pr%C3%A9traitement%20au%20H2S
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2011-08-03
Record 2, English
Record 2, Subject field(s)
- Trade Names
- Rubber
Record 2, Main entry term, English
- Thiokol®
1, record 2, English, Thiokol%C2%AE
correct, trademark
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
Polysulfide-type synthetic rubber is a compound of aliphatic hydrocarbon chains linked by di-, tri-and tetra-sulfide links, manufactured from sodium polysulfide and a dihalide. Thiokol is the commercial trade name. In the manufacturing process, the sodium polysulfide is heated to 160°F.... This synthetic rubber shows oil and solvent resistance, good aging, low permeability, and has good processing characteristics.... Thiokol has been used in paint-spray hoses, oil and gasoline hoses and rollers, and as a binder. 1, record 2, English, - Thiokol%C2%AE
Record number: 2, Textual support number: 1 OBS
Thiokol®: A trademark of Morton International, Inc. 2, record 2, English, - Thiokol%C2%AE
Record 2, Key term(s)
- Thiokol
Record 2, French
Record 2, Domaine(s)
- Appellations commerciales
- Caoutchouc
Record 2, Main entry term, French
- Thiokol®
1, record 2, French, Thiokol%C2%AE
correct, trademark, see observation, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Nom générique de thermoplastiques résistant aux corps gras et insensibles aux basses températures. 2, record 2, French, - Thiokol%C2%AE
Record number: 2, Textual support number: 2 DEF
Désignation commerciale d'un certain nombre de polymères contenant des atomes de soufre et possédant des propriétés élastomères. 3, record 2, French, - Thiokol%C2%AE
Record number: 2, Textual support number: 1 CONT
Parmi ces polymères, le Thiokol A est obtenu en polycondensant le polysulfure de sodium avec le dichloro-1,2 éthane vers 70-80 °C. [...] Il est très résistant aux solvants organiques, huiles et essences, ainsi qu'à l'action de l'oxygène et de l'ozone. Il est en général employé après avoir été chargé par du noir de carbone. Il est, en particulier, utilisé comme revêtement protecteur des métaux. 3, record 2, French, - Thiokol%C2%AE
Record number: 2, Textual support number: 1 OBS
Thiokol® : Marque de commerce de la société Morton International, Inc. 4, record 2, French, - Thiokol%C2%AE
Record 2, Key term(s)
- Thiokol
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 1993-03-25
Record 3, English
Record 3, Subject field(s)
- Pulp Preparation (papermaking)
Record 3, Main entry term, English
- polysulfide process
1, record 3, English, polysulfide%20process
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
Because of significant advantages, the kraft process has become established as the world's dominant pulping method. Nonetheless, the process also has some severe shortcomings.... Two add-on technologies date from pre-1970, the polysulfide process(used commercially on a limited basis) and the H2S pretreatment process(demonstrated at the pilot plant level). Both methods are successful in providing significant increases in pulp yield, up to 7% on dry wood. Unfortunately, both methods are associated with increased concentration of sulfur in the chemical cycle, which exacerbates the odor problem. Additionally, both methods require further processing steps that increase the capital and operating costs of the pulp mill. 1, record 3, English, - polysulfide%20process
Record 3, French
Record 3, Domaine(s)
- Préparation de la pâte à papier
Record 3, Main entry term, French
- procédé au polysulfure
1, record 3, French, proc%C3%A9d%C3%A9%20au%20polysulfure
correct, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
La place prédominante qu'occupe le procédé kraft parmi les méthodes de mise en pâte utilisées dans le monde témoigne bien du nombre d'avantages marqués qu'il offre. Le procédé comporte néanmoins de graves inconvénients (...) La plupart des modifications proposées visent l'obtention d'une meilleure rétention des hydrates de carbone par une stabilisation des monomères de bouts de chaîne des polymères de la cellulose et des hémicelluloses (...) Deux méthodes bien connues, le procédé au polysulfure et le pré-traitement au H2S, assurent une amélioration marquée du rendement en pâte, mais elles ont malheureusement pour inconvénient d'entraîner une augmentation de la concentration de soufre dans le cycle chimique et donc, d'aggraver le problème causé par les mauvaises odeurs. 1, record 3, French, - proc%C3%A9d%C3%A9%20au%20polysulfure
Record 3, Spanish
Record 3, Textual support, Spanish
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