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1. (WO2019046499) HIGH DENSITY PERLITE FILTER AID
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Pub. No.: WO/2019/046499 International Application No.: PCT/US2018/048664
Publication Date: 07.03.2019 International Filing Date: 30.08.2018
IPC:
B01D 39/06 (2006.01) ,B01D 37/02 (2006.01) ,B01J 8/34 (2006.01) ,B01J 20/10 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
39
Filtering material for liquid or gaseous fluids
02
Loose filtering material, e.g. loose fibres
06
Inorganic material, e.g. asbestos fibres, glass beads or fibres
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
37
Processes of filtration
02
Precoating the filtering elements or material; Addition of filter aids to the liquid being filtered
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
8
Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
18
with fluidised particles
24
according to "fluidised-bed" technique
34
with stationary packing material in the fluidised bed, e.g. bricks, wire rings, baffles
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
20
Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
02
comprising inorganic material
10
comprising silica or silicate
Applicants:
IMERYS FILTRATION MINERALS, INC. [US/US]; 1732 North First Street, Suite 450 San Jose, California 95112, US
Inventors:
ROULSTON, John; US
Agent:
TOTTEN, Jeffrey; US
CARRON, Virginia; US
Priority Data:
62/552,87031.08.2017US
Title (EN) HIGH DENSITY PERLITE FILTER AID
(FR) ACCESSOIRE DE FILTRATION À BASE DE PERLITE HAUTE DENSITÉ
Abstract:
(EN) The present disclosure includes filter aids comprising expanded perlite and methods for preparation thereof. The perlite used for making the filter aids may be processed by dehydration, expansion, milling, and/or screening. The expanded perlite has a higher density compared to expanded perlite prepared without dehydration.
(FR) La présente invention concerne des accessoires de filtration comprenant de la perlite expansée ainsi que des procédés de préparation de ceux-ci. La perlite utilisée pour fabriquer les accessoires de filtration peut être traitée par déshydratation, expansion, broyage et/ou criblage. La perlite expansée présente une densité supérieure à celle de la perlite expansée préparée sans déshydratation.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)