TERMIUM Plus^®

Fiche 1,  Justifications,  Anglais

Record number: 1, Textual support number: 1 DEF

An activated oxygen compound which was] developed at Paprican [Pulp and Paper Research Institute of Canada], but not in commercial use, which appears under the form of] a three-membered ring peroxy compound, [which is] produced by various means, [one of them being by] the reaction of monoperoxysulphate with a dilute aqueous solution of acetone, [a solution which can be used to bleach] pulp.  2, fiche 1, Anglais, - dimethyldioxirane

Record number: 1, Textual support number: 1 CONT

DMD is the most selective non-chlorine bleaching agent known, and reacts with residual lignin in a way similar to chlorine and chlorine dioxide. In particular, DMD has the selectivity equivalent to chlorine dioxide in the bleaching of low-Kappa pulp, for example, a Kappa of less than 7 to 8 units.  2, fiche 1, Anglais, - dimethyldioxirane

Record number: 1, Textual support number: 1 OBS

DMD: This might be an in-house or a non-recognized abbreviation; not to be used alone, to avoid any risk of confusion.  3, fiche 1, Anglais, - dimethyldioxirane

Record number: 1, Textual support number: 2 OBS

Chemical formula: (CH₃)₂-CO₂  3, fiche 1, Anglais, - dimethyldioxirane

Fiche 1,  Justifications,  Français

Record number: 1, Textual support number: 1 DEF

Peroxyde cyclique [utilisé] dans un procédé de blanchiment développé par Paprican [Institut canadien de recherches sur les pâtes et papiers, qui] est synthétisé lors de la réaction entre l’acide peroxymonosulfurique et l’acétone à pH 7-8, [mais qui n’est pas utilisé dans le commerce à l’heure actuelle].  2, fiche 1, Français, - dim%C3%A9thyldioxirane

Record number: 1, Textual support number: 1 CONT

Le DMD est l'agent de blanchiment non chloré le plus sélectif connu à ce jour. Il réagit avec la lignine résiduaire de façon similaire au chlore et au bioxyde de chlore. Le DMD possède une sélectivité équivalente à celle du dioxyde de chlore en ce qui concerne le blanchiment des pâtes de faibles indices kappa(moins de 7-8).  2, fiche 1, Français, - dim%C3%A9thyldioxirane

Record number: 1, Textual support number: 1 OBS

DMD : abréviation non officielle; ne pas l’utiliser seule, pour éviter tout risque de confusion.  3, fiche 1, Français, - dim%C3%A9thyldioxirane

Record number: 1, Textual support number: 2 OBS

Formule chimique : (CH₃)₂-CO₂  3, fiche 1, Français, - dim%C3%A9thyldioxirane

Fiche 1,  Justifications,  Espagnol

Fiche 2,  Justifications,  Anglais

Record number: 2, Textual support number: 1 DEF

Bleaching with a chlorine dioxide solution.  2, fiche 2, Anglais, - chlorine%20dioxide%20bleaching

Record number: 2, Textual support number: 1 OBS

chlorine dioxide solution: A very unstable water solution of chlorine dioxide gas (ClO((subscript))2) produced in the chemical preparation area of a pulp mill. It is used in the pulp bleaching process.  3, fiche 2, Anglais, - chlorine%20dioxide%20bleaching

Record number: 2, Textual support number: 2 OBS

The initial utilization of chlorine bleaching was in the later stages of a multi-stage bleaching sequence. The CEHDED sequence became dominant in the early 1960's for the production of full-bleach kraft pulp. As the cost of Cl02 became more competitive with sodium hypochlorite in the late 1960's, the CEDED sequence became the industry standard. In the 1970's, attention was given to replacing part of the chlorine in the chlorination stage with chemically equivalent chlorine dioxide to improve pulp strength and color stability and reduce effluent color ....  1, fiche 2, Anglais, - chlorine%20dioxide%20bleaching

Fiche 2,  Justifications,  Français

Fiche 2,  Justifications,  Espagnol