[go: up one dir, main page]

GB877983A - Filter aid - Google Patents

Filter aid

Info

Publication number
GB877983A
GB877983A GB514760A GB514760A GB877983A GB 877983 A GB877983 A GB 877983A GB 514760 A GB514760 A GB 514760A GB 514760 A GB514760 A GB 514760A GB 877983 A GB877983 A GB 877983A
Authority
GB
United Kingdom
Prior art keywords
filter aid
calcined
ignitable
flux
calcining
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB514760A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Priority to GB514760A priority Critical patent/GB877983A/en
Publication of GB877983A publication Critical patent/GB877983A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/48—Sorbents characterised by the starting material used for their preparation
    • B01J2220/4875—Sorbents characterised by the starting material used for their preparation the starting material being a waste, residue or of undefined composition
    • B01J2220/4887—Residues, wastes, e.g. garbage, municipal or industrial sludges, compost, animal manure; fly-ashes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

Fly ash from the burning of pulverised coal is calcined and powdered and used as a filter aid. Preferably, access of air to the material is restricted during calcining to ensure retention of some ignitable material. The product may be calcined a second time. One or more alkali metal salts may be added to the material as a flux for siliceous constituents. Ranges of ignitable matter content, of calcining temperatures and of flux proportions, are given.
GB514760A 1960-02-12 1960-02-12 Filter aid Expired GB877983A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB514760A GB877983A (en) 1960-02-12 1960-02-12 Filter aid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB514760A GB877983A (en) 1960-02-12 1960-02-12 Filter aid

Publications (1)

Publication Number Publication Date
GB877983A true GB877983A (en) 1961-09-20

Family

ID=9790584

Family Applications (1)

Application Number Title Priority Date Filing Date
GB514760A Expired GB877983A (en) 1960-02-12 1960-02-12 Filter aid

Country Status (1)

Country Link
GB (1) GB877983A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4301015A (en) 1978-10-03 1981-11-17 Coal Industry (Patents) Limited Filtration

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4301015A (en) 1978-10-03 1981-11-17 Coal Industry (Patents) Limited Filtration

Similar Documents

Publication Publication Date Title
GB877983A (en) Filter aid
ES266573A1 (en) Improvements in pigments
AU6202660A (en) Improvements in or relating to compositions inwhich a particulate refractory is dispersed
CA592271A (en) Feeders of pulverized coal
CA608393A (en) Compositions for treating paper and papers so produced
AU249851B2 (en) Improvements in and relating to boilers witha cyclone-type furnace
CA600936A (en) Heat-treating furnace for particulate solids
AU158531B2 (en) Improvements in or relating to contacting gases with powdered solids
GB762606A (en) Synthetic cement
FR1214027A (en) Improvements to hearths for the combustion in pulverized form of lean coals
AU270259B2 (en) Improvements in or relating tothe determination ofthe ash content of coal
CA547546A (en) Oil compositions containing solid particles
CA596888A (en) Fuel oil compositions containing formaldimine salts
CA621375A (en) Stoker for the combustion of coal
CA572406A (en) Dimensionally thermostable polysulfide compositions
AU6181860A (en) Improvements in and relating to boilers witha cyclone-type furnace
AU206212B2 (en) Improvements in or relating to methods of burning material containing lime, for example cement andthe like
CA592649A (en) Ash receptacle
CA593354A (en) Burning of fuel for the generation of heat
AU472851A (en) Improvements in or relating to contacting gases with powdered solids
CA602128A (en) Lubricating compositions containing mixed salts
CA511919A (en) Furnace for burning solid fuels such as bituminous coal and derivatives thereof
AU258718B2 (en) Thilazanthene compounds, preparation thereof and compositions containing said compounds
AU240137B2 (en) Improvements in or rleating to the heating of air for furnace combustion
AU275566B2 (en) Improvements relating tothe drying and cleaning of small or fine coal, or other particulate materials containing components of different specific gravities