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YU46251B - Postupak uklanjanja suspendovanih materija iz kružne procesne struje bajerovog postupka polimeta koji sadrže hidroksilne kiselinske grupe - Google Patents

Postupak uklanjanja suspendovanih materija iz kružne procesne struje bajerovog postupka polimeta koji sadrže hidroksilne kiselinske grupe

Info

Publication number
YU46251B
YU46251B YU25388A YU25388A YU46251B YU 46251 B YU46251 B YU 46251B YU 25388 A YU25388 A YU 25388A YU 25388 A YU25388 A YU 25388A YU 46251 B YU46251 B YU 46251B
Authority
YU
Yugoslavia
Prior art keywords
polymer
polymets
bayer
procedure
acid groups
Prior art date
Application number
YU25388A
Other languages
English (en)
Other versions
YU25388A (en
Inventor
D.P. Spitzer
Original Assignee
American Cyanamid Company
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=21760238&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=YU46251(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by American Cyanamid Company filed Critical American Cyanamid Company
Publication of YU25388A publication Critical patent/YU25388A/xx
Publication of YU46251B publication Critical patent/YU46251B/sh

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/01—Separation of suspended solid particles from liquids by sedimentation using flocculating agents
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
    • C01F7/06—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom by treating aluminous minerals or waste-like raw materials with alkali hydroxide, e.g. leaching of bauxite according to the Bayer process
    • C01F7/0646—Separation of the insoluble residue, e.g. of red mud
    • C01F7/0653—Separation of the insoluble residue, e.g. of red mud characterised by the flocculant added to the slurry
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/46—Purification of aluminium oxide, aluminium hydroxide or aluminates
    • C01F7/47—Purification of aluminium oxide, aluminium hydroxide or aluminates of aluminates, e.g. removal of compounds of Si, Fe, Ga or of organic compounds from Bayer process liquors

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

što se procesna struja, kao šarža za taloženje, preliv iz taložnika ili izlazni tok, dovodi u kontakt i intenzivno meša sa u vodi rastvorljivim polimerom molekulska mase 1 x 104 do 3 x 107, koji je stabilan na temperaturama od 85-107В° C i efikasan u kaustičnim uslovima sa alkalnim sadržajem od 80-400 g/l (izraženo kao ekvivalent natrijumkarbonata), koji sadrži viseće hidroksamske kiselinske ili sone grupe formule (I) u kojoj je R vodonik ili katjon, u količini koja je efikasna za taloženje suspendovanih čvrstih materija iz te struje, povoljno u količini od najmanje 0,1 do najmanje 1,0 mg po litru procesne struje, pri čemu je polimer pogodno u obliku emulzije sa stepenom hidroksamacije polimera od 1 do 90 mol.%, i što se polimer upotrebljava zajedno sa anjonskim flokulantom. Prijava sadrži još 6 zavisnih zahteva.
YU25388A 1987-02-11 1988-02-09 Postupak uklanjanja suspendovanih materija iz kružne procesne struje bajerovog postupka polimeta koji sadrže hidroksilne kiselinske grupe YU46251B (sh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/013,491 US4767540A (en) 1987-02-11 1987-02-11 Polymers containing hydroxamic acid groups for reduction of suspended solids in bayer process streams

Publications (2)

Publication Number Publication Date
YU25388A YU25388A (en) 1989-12-31
YU46251B true YU46251B (sh) 1993-05-28

Family

ID=21760238

Family Applications (1)

Application Number Title Priority Date Filing Date
YU25388A YU46251B (sh) 1987-02-11 1988-02-09 Postupak uklanjanja suspendovanih materija iz kružne procesne struje bajerovog postupka polimeta koji sadrže hidroksilne kiselinske grupe

Country Status (12)

Country Link
US (1) US4767540A (sh)
EP (1) EP0314855B1 (sh)
JP (1) JP2584469B2 (sh)
AU (1) AU600087B2 (sh)
BR (1) BR8800540A (sh)
CA (1) CA1334562C (sh)
DE (1) DE3875061T2 (sh)
ES (1) ES2043690T3 (sh)
HU (1) HU206067B (sh)
IE (1) IE62420B1 (sh)
SU (1) SU1687029A3 (sh)
YU (1) YU46251B (sh)

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JP5389452B2 (ja) * 2006-02-09 2014-01-15 ペブル ベッド モジュラー リアクター（プロプリエタリー） リミテッド 原子力発電所及び原子力発電所を操作する方法
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US20080257827A1 (en) * 2007-04-20 2008-10-23 Qi Dai Use of silicon-containing polymers to improve red mud flocculation in the bayer process
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Also Published As

Publication number Publication date
EP0314855B1 (en) 1992-09-30
DE3875061T2 (de) 1993-03-25
EP0314855A2 (en) 1989-05-10
BR8800540A (pt) 1988-09-27
DE3875061D1 (de) 1992-11-05
EP0314855A3 (en) 1991-04-03
JP2584469B2 (ja) 1997-02-26
HUT46285A (en) 1988-10-28
CA1334562C (en) 1995-02-28
SU1687029A3 (ru) 1991-10-23
HU206067B (en) 1992-08-28
JPS63248717A (ja) 1988-10-17
YU25388A (en) 1989-12-31
IE880359L (en) 1988-08-11
AU1149488A (en) 1988-08-18
AU600087B2 (en) 1990-08-02
ES2043690T3 (es) 1994-01-01
US4767540A (en) 1988-08-30
IE62420B1 (en) 1995-01-25

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