GB473647A - Improvements relating to the production of polar absorbents - Google Patents

Improvements relating to the production of polar absorbents

Info

Publication number
GB473647A
GB473647A GB1072836A GB1072836A GB473647A GB 473647 A GB473647 A GB 473647A GB 1072836 A GB1072836 A GB 1072836A GB 1072836 A GB1072836 A GB 1072836A GB 473647 A GB473647 A GB 473647A
Authority
GB
United Kingdom
Prior art keywords
product
treating
sodium
solution
alkali
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
GB1072836A
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 GB1072836A priority Critical patent/GB473647A/en
Publication of GB473647A publication Critical patent/GB473647A/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
    • B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
    • B01J39/08—Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
    • B01J39/24—Carbon, coal or tar

Landscapes

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

Abstract

A base-exchange material which is insoluble in alkali and which can be used for softening water, fertilizing the soil and for removing acidity and alkalinity from water and aqueous solutions is made by treating lignite, coal or anthracite with sulphuric acid at a temperature which is not allowed to exceed 60 DEG C. The resultant product may be washed and further treated with an alkali or an alkaline salt of a weak acid such as sodium acetate or borax or a neutral salt may be used such as sodium chloride, calcium chloride or lanthanum nitrate. Solutions of calcium, sodium or potassium bicarbonate may also be used. The product is finally dried at a temperature not above 120 DEG C. The product is granular and the grains may be coated with a previous colloid film of the hydroxides or silicates of aluminium, iron or chromium or of the alkaline earth metals or of the hydroxides of silicic, tungstic, molybdic or titanic acids. A colloidal film of silicic acid may be formed by treating the product with hydrochloric acid and a solution of sodium silicate. Hydroxide films may be formed by treating the product with dilute alkali solution and a solution of a metal salt such as chromium or aluminium sulphate.
GB1072836A 1936-04-14 1936-04-14 Improvements relating to the production of polar absorbents Expired GB473647A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1072836A GB473647A (en) 1936-04-14 1936-04-14 Improvements relating to the production of polar absorbents

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1072836A GB473647A (en) 1936-04-14 1936-04-14 Improvements relating to the production of polar absorbents

Publications (1)

Publication Number Publication Date
GB473647A true GB473647A (en) 1937-10-14

Family

ID=9973184

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1072836A Expired GB473647A (en) 1936-04-14 1936-04-14 Improvements relating to the production of polar absorbents

Country Status (1)

Country Link
GB (1) GB473647A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2231564A (en) * 1989-05-15 1990-11-21 Nat Energy Council Product for stimulating seeding growth

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2231564A (en) * 1989-05-15 1990-11-21 Nat Energy Council Product for stimulating seeding growth
GB2231564B (en) * 1989-05-15 1992-08-12 Nat Energy Council Seedling growth stimulation
US5302524A (en) * 1989-05-15 1994-04-12 National Energy Council Coal derived oxidation product for seedling growth stimulation

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