Reference

Fine coal flotation with alcohol: dialkyl sulfosuccinate frothing systems

Fine coal flotation with alcohol: dialkyl sulfosuccinate frothing systems. Strydom, P. J.; Spitzer, D. P.; Goodman, R. M. (Am. Cyanamid Co., Stamford, CT 06904, USA). Colloids Surf., 8(2), 175-85 (English) 1983. CODEN: COSUD3. ISSN: 0166-6622. DOCUMENT TYPE: Journal CA Section: 51 (Fossil Fuels, Derivatives, and Related Products) A correlation of the static frothing efficiency and batch flotation recovery of coal powder is obsd. in the presence of Na diiso-Bu sulfosuccinate (I) [127-39-9] and methylisobutylcarbinol (II) [108-11-2]. The frothing in aq. II (10-35 mg/L) was reduced 30-40% in a process water contg. 850 mg salts/L (in comparison with deionized water), but that in aq. I was increased. Thus, the mixt. provided greater tolerance of water quality variations than the alc. alone. The addn. of a small amt. of I to II improved the flotation of a fine coal (-325 mesh) in the process water, but it had less effect on that of a coarse coal (+325 mesh). Total reagent usage is less with I-II than with II alone.

Process for producing porous structures using amphipathic materials

All Rights Reserved. Process for producing porous structures using amphipathic materials. Yamada, Yusuke (The Furukawa Electric Co., Ltd., Japan). PCT Int. Appl. WO 2007007877 A1 18 Jan 2007, 52pp. DESIGNATED STATES: W: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HN, HR, HU, ID, IL, IN, IS, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN; RW: AT, BE, BF, BJ, CF, CG, CH, CI, CM, CY, DE, DK, ES, FI, FR, GA, GB, GR, IE, IS, IT, LU, MC, ML, MR, NE, NL, PT, SE, SN, TD, TG, TR. (Japanese). (World Intellectual Property Organization). CODEN: PIXXD2. APPLICATION: WO 2006-JP314067 14 Jul 2006. PRIORITY: JP 2005-205961 14 Jul 2005; JP 2006-191742 12 Jul 2006. DOCUMENT TYPE: Patent CA Section: 38 (Plastics Fabrication and Uses) The process for producing a porous structure, in which a reversed-micelle template formed in a hydrophobic-org.-solvent soln. is used for pore formation, comprises: (A) a step in which a soln.In this article, certain chemicals are used. Some of their cas registry numbers are 25067-34-9 and 127-39-9 comprising an amphipathic substance [e.g., sodium bis(2-ethylhexylsulfosuccinate)], a hydrophobic org. polymer (e.g., polystyrene), a hydrophilic liq., and a hydrophobic org. solvent which dissolves the org. polymer is mixed by stirring to obtain a hydrophobic-org.-solvent soln. having reversed micelles formed therein; (B) a step in which the hydrophobic-org.-solvent soln. is cast on a substrate; and (C) a step in which the hydrophobic org. solvent and the hydrophilic liq. are evapd. and removed from the hydrophobic-org.-solvent soln. on the substrate to form a porous structure. .