GB450540A - Improvements in the manufacture of base-exchange materials - Google Patents
Improvements in the manufacture of base-exchange materialsInfo
- Publication number
- GB450540A GB450540A GB122635A GB122635A GB450540A GB 450540 A GB450540 A GB 450540A GB 122635 A GB122635 A GB 122635A GB 122635 A GB122635 A GB 122635A GB 450540 A GB450540 A GB 450540A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coal
- exceeding
- much
- weight
- temperature
- 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
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)
- Treatment Of Water By Ion Exchange (AREA)
Abstract
Ion-exchanging substances suitable for softening water are obtained by treating coal or anthracite with a current of gaseous sulphur trioxide, or a mixture containing it, at a temperature not exceeding 250 DEG C., and preferably not exceeding 150 DEG C., the reaction being stopped before there is any appreciable formation of free carbon. The treatment may be carried out in a water-cooled rotary drum through which the coal and gas are passed in opposite directions. The product is washed and dried at a temperature of 30 to 40 DEG C. The coal may be caused to react with as much as ten times its weight of the sulphur trioxide and the weight of the coal may be increased by as much as 60 per cent. Specifications 450,574 and 450,575, [Group I], are referred to.ALSO:Ion-exchanging substances suitable for softening water are obtained by treating coal or anthracite with a current of gaseous sulphur trioxide, or a mixture containing it, at a temperature not exceeding 250 DEG C., and preferably not exceeding 150 DEG C., the reaction being stopped before there is any appreciable formation of free carbon. The treatment may be carried out in a water-cooled rotary drum through which the coal and gas are passed in opposite directions. The product is washed and dried at a temperature of 30 to 40 DEG C. The coal may be caused to react with as much as ten times its weight of the sulphur trioxide and the weight of the coal may be increased by as much as 60 per cent. Specifications 450,574 and 450,575 are referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB122635A GB450540A (en) | 1935-01-14 | 1935-01-14 | Improvements in the manufacture of base-exchange materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB122635A GB450540A (en) | 1935-01-14 | 1935-01-14 | Improvements in the manufacture of base-exchange materials |
Publications (1)
Publication Number | Publication Date |
---|---|
GB450540A true GB450540A (en) | 1936-07-14 |
Family
ID=9718307
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB122635A Expired GB450540A (en) | 1935-01-14 | 1935-01-14 | Improvements in the manufacture of base-exchange materials |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB450540A (en) |
-
1935
- 1935-01-14 GB GB122635A patent/GB450540A/en not_active Expired
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