发明名称 |
Process for granulation of sulfur |
摘要 |
A process for the production of granular sulfur in a rotating drum in which molten sulfur at a temperature within the range of about 110 DEG to 160 DEG C. is sprayed in a contact zone onto a bed of moving sulfur particles and a continuous curtain of said particles and resulting particles are passed to a cooling zone prior to discharge. A countercurrent flow of substantially inert cooling gas at a temperature in the range of about 10 DEG to 50 DEG C. and containing not more than 8% by volume oxygen is introduced to the cooling zone and a portion or all of said cooling gas is passed through the contact zone. The contact and cooling zones can be formed in a single rotating drum and separated from each other by a retaining ring or formed in separate vessels. Discharge particles from the cooling zone are separated according to size and undersized particles are recycled as fines to the contact zone at a ratio of 4:1 to 2:1 of fines to product granules.
|
申请公布号 |
US4234318(A) |
申请公布日期 |
1980.11.18 |
申请号 |
US19780875369 |
申请日期 |
1978.02.06 |
申请人 |
COMINCO LTD. |
发明人 |
HIGGINS, JOHN T.;HILDRED, GORDON C. |
分类号 |
B01J2/12;C01B17/10;(IPC1-7):B01J2/12;B01J2/16;B05D1/02 |
主分类号 |
B01J2/12 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|