MULTISTAGE EXTRACTIONとは 意味・読み方・使い方

To provide a method for bleaching chemical pulp capable of reducing bleaching cost as well as raising the efficiency of an alkali extraction/hydrogen peroxide tier-chlorine dioxide tier sequence which constitutes a part of an ECF multistage bleaching step following a pulp digestive treatment-oxidative delignification treatment.例文帳に追加

パルプの蒸解処理−酸素脱リグニン処理に続くＥＣＦ多段漂白工程に一部を構成する、アルカリ抽出／過酸化水素段−二酸化塩素段シーケンスの効率を高めると同時に、漂白コストを低減できる漂白方法を提供することにある。 - 特許庁

In the case of carrying out multistage bleaching of a digested pulp in the production of a bleached kraft pulp by an ECF bleaching method, a bleaching step with chlorine dioxide is placed after an ozone bleaching step without using an alkali-extraction step after the ozone bleaching step.例文帳に追加

ＥＣＦ漂白法を用いた漂白クラフトパルプの製造方法において、蒸解工程後のパルプの多段漂白を行う際、オゾン漂白段後にはアルカリ抽出工程を有することなく、オゾン段の後工程に二酸化塩素漂白段を行う。 - 特許庁

An organic phase with diglycol amide acid as an extract and low-polar alcohol as a solvent and a water phase composed of an aqueous solution comprising two or more of rare earth elements are contacted under an acid condition at the pH of ≤3, and solvent extraction is performed using a countercurrent multistage mixer-settler.例文帳に追加

ジグリコールアミド酸を抽出剤とし、低極性アルコールを溶媒とする有機相と、２種以上の希土類元素を含む水溶液からなる水相とをｐＨ３以下の酸性条件下で接触させ、向流多段ミキサーセトラーを用いて溶媒抽出する。 - 特許庁

This method for producing a thermosetting resin is characterized in that when the low nuclide component contained in the thermosetting resin is removed by solvent extraction, for example, a countercurrent contact type centrifugal extractor 23 having a cell type porous cylindrical structure and a multistage disk type rotor structure is used and an extraction treatment and a separation are simultaneously carried out.例文帳に追加

熱硬化性樹脂中に含有する低核体成分を、溶媒抽出により除去する際に、例えば、隔室式多孔円筒構造又は多段ディスク式ローター構造を有する向流接触型遠心抽出装置２３を用い、抽出処理と分離を同時に行うことを特徴とする熱硬化性樹脂の製造方法。 - 特許庁

In the method for bleaching chemical pulp for papermaking, including needle-leaf tree as a raw material, the method for producing the chemical pulp for papermaking includes maintaining the final pH at 4-5 in the final chlorine dioxide treatment in a multistage bleaching treatment composed of a chlorine dioxide stage, an alkali extraction/oxygen/peroxide stage and a peroxide stage after a digestion treatment-oxygen delignification treatment.例文帳に追加

針葉樹を原料とする製紙用化学パルプの漂白方法において、蒸解処理−酸素脱リグニン処理後、二酸化塩素段、アルカリ抽出／酸素／過酸化物段および過酸化物段から構成される多段漂白処理の、最終二酸化塩素処理の終ｐＨを４．０〜４．５に維持することを特徴とする製紙用化学パルプの製造方法。 - 特許庁