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GB1426802A - Fillers - Google Patents

Fillers

Info

Publication number
GB1426802A
GB1426802A GB3719275A GB3719275A GB1426802A GB 1426802 A GB1426802 A GB 1426802A GB 3719275 A GB3719275 A GB 3719275A GB 3719275 A GB3719275 A GB 3719275A GB 1426802 A GB1426802 A GB 1426802A
Authority
GB
United Kingdom
Prior art keywords
moisture content
sodium
feb
sio
mass
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
GB3719275A
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.)
PQ Corp
Original Assignee
PQ Corp
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
Priority claimed from US235851A external-priority patent/US3888957A/en
Application filed by PQ Corp filed Critical PQ Corp
Publication of GB1426802A publication Critical patent/GB1426802A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/22—Expanded, porous or hollow particles
    • C08K7/24—Expanded, porous or hollow particles inorganic
    • C08K7/26—Silicon- containing compounds
    • 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
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/02—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops
    • B01J2/04—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops in a gaseous medium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Silicon Compounds (AREA)

Abstract

1426802 Making spherical filiers PHILADELPHIA QUARTZ CO 5 Feb 1973 [3 Feb 1972 (2) 17 March 1972 12 May 1972] 37192/75 Divided out of 1426801 Heading C1A A spherical filler is made by reacting, in solution, a sodium silicate characterized by a SiO 2 : Na 2 O weight ratio of 1À5-4À0 : 1 and a Na 2 O content of 5-20% or a potassium silicate characterized by a SiO 2 : K 2 O weight ratio of 1À5-4À2 : 1 with a polyborate or polyphosphate in such a way that formation of localized pockets of irreversible gel is avoided, the ratio of polysalt : silicate solids being 0À02-3À0 : 1, withdrawing a liquid stream from the reaction vessel at below its boiling point, spray drying the liquid stream to form a mass of hollow spheres of moisture content less than 25%, drying the spheres at 70-400‹ C. for a time sufficient to reduce the moisture content to 0-7% and recovering a mass of hollow spherical particles having a bulk density of 2-30 lbs./ft.<SP>3</SP>: particle size within the range 10-400 mesh and a moisture content of 0-7%. Preferred polysalts are ammonium or sodium pentaborate and sodium hexametaphosphate.
GB3719275A 1972-02-03 1973-02-05 Fillers Expired GB1426802A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US22331372A 1972-02-03 1972-02-03
US22331472A 1972-02-03 1972-02-03
US235851A US3888957A (en) 1972-02-03 1972-03-17 Method of making hollow spheres by spray drying
US25276372A 1972-05-12 1972-05-12

Publications (1)

Publication Number Publication Date
GB1426802A true GB1426802A (en) 1976-03-03

Family

ID=27499314

Family Applications (2)

Application Number Title Priority Date Filing Date
GB555573A Expired GB1426801A (en) 1972-02-03 1973-02-05 Fillers
GB3719275A Expired GB1426802A (en) 1972-02-03 1973-02-05 Fillers

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB555573A Expired GB1426801A (en) 1972-02-03 1973-02-05 Fillers

Country Status (5)

Country Link
CA (1) CA998205A (en)
DE (1) DE2305210A1 (en)
FR (1) FR2170172B1 (en)
GB (2) GB1426801A (en)
IT (1) IT991544B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1522620A (en) * 1974-12-05 1978-08-23 Fillite Ltd Moulding processes and material
US4476258A (en) * 1983-03-30 1984-10-09 National Research Development Corporation Energy absorbing polyurethane compositions

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3183107A (en) * 1962-02-07 1965-05-11 Standard Oil Co Glass sphere filled plastering compositions
US3699050A (en) * 1967-08-02 1972-10-17 Emerson & Cuming Inc Spray dried product for feed in the manufacture of hollow glass spheres and process for forming said spray dried product

Also Published As

Publication number Publication date
DE2305210A1 (en) 1973-08-09
IT991544B (en) 1975-08-30
DE2305210C2 (en) 1987-12-23
FR2170172B1 (en) 1977-02-04
CA998205A (en) 1976-10-12
GB1426801A (en) 1976-03-03
FR2170172A1 (en) 1973-09-14

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19930203