GB687867A - Improvements in carbon black - Google Patents
Improvements in carbon blackInfo
- Publication number
- GB687867A GB687867A GB15649/50A GB1564950A GB687867A GB 687867 A GB687867 A GB 687867A GB 15649/50 A GB15649/50 A GB 15649/50A GB 1564950 A GB1564950 A GB 1564950A GB 687867 A GB687867 A GB 687867A
- Authority
- GB
- United Kingdom
- Prior art keywords
- furnace
- carbon black
- combustion
- air
- oxygen
- 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
- C09C1/50—Furnace black ; Preparation thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
<PICT:0687867/III/1> Furnace black is rendered more adsorptive by subjecting it in suspension in products of combustion containing uniformly dispersed therein 0.1 to 2 per cent free oxygen to temperatures within the range of 2000 DEG F to 2500 DEG F for a period of time within the range of 0.1 to 0.5 seconds. The treatment is preferably effected in the carbon black furnace in a zone just subsequent to that in which the carbon black is formed, for example by mixing about 5 per cent air by volume with the furnace gases resulting from combustion and decomposition of hydrocarbons with insufficient air to complete combustion. In the preferred embodiment, Fig. 1, air and fuel gas are injected from pipes 9 and 11 respectively into a burner block 6 at one end of an elongated combustion chamber 1, the apparatus being of the type disclosed in Specification 654,865. Hydrocarbon to be decomposed is injected to the furnace from an annular pipe 15 through radial jets 16, the trajectory of the jets being so controlled that the streams fail to meet and thus leave a channel through which oxygen containing gases may pass, such oxygen becoming intimately mixed with the make gas after the latter has been decomposed to form carbon black in suspension. Specifications 654,864 and 673,401 also are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US687867XA | 1950-01-27 | 1950-01-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB687867A true GB687867A (en) | 1953-02-25 |
Family
ID=22084699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB15649/50A Expired GB687867A (en) | 1950-01-27 | 1950-06-22 | Improvements in carbon black |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB687867A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6156837A (en) * | 1992-03-05 | 2000-12-05 | Cabot Corporation | Carbon blacks |
-
1950
- 1950-06-22 GB GB15649/50A patent/GB687867A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6156837A (en) * | 1992-03-05 | 2000-12-05 | Cabot Corporation | Carbon blacks |
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