EP0493173B1 EP91403371A EP91403371A EP0493173B1 EP 0493173 B1 EP0493173 B1 EP 0493173B1 EP 91403371 A EP91403371 A EP 91403371A EP 91403371 A EP91403371 A EP 91403371A EP 0493173 B1 EP0493173 B1 EP 0493173B1 Authority EP European Patent Office Prior art keywords phosphorus white phosphorus aqueous suspension purified filter Prior art …
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KR960016698B1 KR1019910022931A KR910022931A KR960016698B1 KR 960016698 B1 KR960016698 B1 KR 960016698B1 KR 1019910022931 A KR1019910022931 A KR 1019910022931A KR 910022931 A KR910022931 A KR 910022931A KR 960016698 B1 KR960016698 B1 KR 960016698B1 Authority KR South Korea Prior art keywords filter …
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US5283042A US07/811,979 US81197991A US5283042A US 5283042 A US5283042 A US 5283042A US 81197991 A US81197991 A US 81197991A US 5283042 A US5283042 A US 5283042A Authority US United States Prior art keywords phosphorus white phosphorus active charcoal purification purified Prior art date 1990-12-21 Legal status (The legal status is an …
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c01b — non-metallic elements; compounds thereof; metalloids or compounds thereof not covered by subclass c01c
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US5411668A US08/285,791 US28579194A US5411668A US 5411668 A US5411668 A US 5411668A US 28579194 A US28579194 A US 28579194A US 5411668 A US5411668 A US 5411668A Authority US United States Prior art keywords modules ultrafiltration glycol water ultrafiltration membrane Prior art date 1993-08-05 Legal status (The legal status is an …
The invention relates to a method for enhancing reactor volume use in a leaching stage in a hydrometallurgical process. According to the method, a concentrate or calcine leaching stage is carried out primarily using a plurality of reactors arranged in series, one or more reactors being provided with liquid-solid matter separation and the separated solid matter being transferred to …
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La présente invention concerne un procédé continu de formation d'un acide anthranilique comprenant le traitement dans une première étape d'un mélange comprenant un sel de carbonate et un sel d'acide anthranilique répondant à la formule (I) dans laquelle R est choisi parmi un atome d'hydrogène et un ou plusieurs groupes hydrocarbonés substitués ou non substitués, et …
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JP3844368B2 JP18237394A JP18237394A JP3844368B2 JP 3844368 B2 JP3844368 B2 JP 3844368B2 JP 18237394 A JP18237394 A JP 18237394A JP 18237394 A JP18237394 A JP 18237394A JP 3844368 B2 JP3844368 B2 JP 3844368B2 Authority JP Japan Prior art keywords glycol module ultrafiltration icing water Prior art date 1993-08-05 Legal status (The legal status …
JP3844368B2 JP18237394A JP18237394A JP3844368B2 JP 3844368 B2 JP3844368 B2 JP 3844368B2 JP 18237394 A JP18237394 A JP 18237394A JP 18237394 A JP18237394 A JP 18237394A JP 3844368 B2 JP3844368 B2 JP 3844368B2 Authority JP Japan Prior art keywords glycol module ultrafiltration icing water Prior art date 1993-08-05 Legal status (The legal status …
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WO2007088346A1 - Treatment of aqueous liquids and the preparation of anthranilic acid - Google Patents
US5283042A US07/811,979 US81197991A US5283042A US 5283042 A US5283042 A US 5283042A US 81197991 A US81197991 A US 81197991A US 5283042 A US5283042 A US 5283042A Authority US United States Prior art keywords phosphorus white phosphorus active charcoal purification purified Prior art date 1990-12-21 Legal status (The legal status is an …
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(57)【】 【】をし、1，2−ジクロロエタ ンにまれるのを、をとして するにおいて、スケールによるの をし、にってしたをうこと をとしたをする。
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Иран-это очень важный рынок Ближнего Востока. Каждый год…
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