GB517274A - Improvements in and relating to the treatment of carbon black and lamp black - Google Patents
Improvements in and relating to the treatment of carbon black and lamp blackInfo
- Publication number
- GB517274A GB517274A GB18110/38A GB1811038A GB517274A GB 517274 A GB517274 A GB 517274A GB 18110/38 A GB18110/38 A GB 18110/38A GB 1811038 A GB1811038 A GB 1811038A GB 517274 A GB517274 A GB 517274A
- Authority
- GB
- United Kingdom
- Prior art keywords
- carbon
- salts
- black
- alkaline
- substances
- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/44—Carbon
- C09C1/48—Carbon black
- C09C1/56—Treatment of carbon black ; Purification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
517,274. Rubber compositions. COLUMBIAN CARBON CO. June 17,1938, No.18110. Convention date, June 17, 1937. [Class 70] [Also in Group III] Carbon blacks and lamp blacks of commerce and carbon black which has been heat-. activated in an oxygen-containing atmosphere, which have a distinctly acid pH when formed into a sludge, and which have been caused to take up fixed alkaline substances or neutral substances of which an alkaline part is adapted to be adsorbed by the carbon may be added to rubber compositions. The black is treated with sufficient of a solution of the substance to give a product which in an aqueous sludge has a pH of between 6.0 and 9.0 and is then freed from the solution. The subtances must be " fixed " in the sense that the alkaline part is not readily vaporized by heat; ammonia and ammonium salts are unsuitable.. Suitable substances are alkali and alkaline earth hydroxides and salts such as carbonates, phosphates, silicates, borates, and also neutral salts such as sodium chloride and potassium chloride. When salts such as these chlorides are used a thorough washing is necessary to remove free acid which is formed by the adsorption. By admixing the treated slurry with gasoline and as described in Specification 327,979, [Class 90], the carbon black may be formed into granules or pellets.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US517274XA | 1937-06-17 | 1937-06-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB517274A true GB517274A (en) | 1940-01-25 |
Family
ID=21973021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB18110/38A Expired GB517274A (en) | 1937-06-17 | 1938-06-17 | Improvements in and relating to the treatment of carbon black and lamp black |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB517274A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112679994A (en) * | 2020-11-27 | 2021-04-20 | 龙星化工股份有限公司 | Method for adjusting pH value of carbon black for rubber |
-
1938
- 1938-06-17 GB GB18110/38A patent/GB517274A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112679994A (en) * | 2020-11-27 | 2021-04-20 | 龙星化工股份有限公司 | Method for adjusting pH value of carbon black for rubber |
| CN112679994B (en) * | 2020-11-27 | 2022-02-18 | 龙星化工股份有限公司 | Method for adjusting pH value of carbon black for rubber |
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