FIELD: chemistry.
SUBSTANCE: method of bertrandite-phenacite-fluorite concentrate processing includes the following stages: activation of concentrate, sulphatization of activated product, water leaching of sulphatizated material, separation of the pulp to obtain beryllium sulphate and precipitate, precipitation of beryllium hydroxide from beryllium sulphate solution. Activation of bertrandite-phenacite-fluorite concentrate is performed by milling to the particle size less than 9 mcm, sulphatization of the milled product is performed by 93% sulphuric acid at 250÷300°C.
EFFECT: invention provides recycling of fluorine of the concentrate; reduction of the number of technological operations and reduction of waste cake.
2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PROCESSING BERYLLIUM-CONTAINING CONCENTRATES | 2006 |
|
RU2309122C2 |
| METHOD OF PROCESSING OF BERTRANDITE-PHENACITE-FLUORITE CONCENTRATES | 2006 |
|
RU2325326C2 |
| METHOD OF COMBINED PROCESSING OF BERYLLIUM CONCENTRATES | 2013 |
|
RU2547060C1 |
| METHOD OF BERYLLIUM RECOVERY FROM BERYLLIUM CONCENTRATES | 2008 |
|
RU2350562C2 |
| METHOD FOR EXTRACTION OF BERYLLIUM FROM BERYLLIUM CONCENTRATES | 2007 |
|
RU2351540C2 |
| METHOD OF PROCESSING BERYLLIUM CONCENTRATES | 2006 |
|
RU2309121C2 |
| METHOD FOR EXTRACTION OF BERYLLIUM FROM BERYLLIUM CONCENTRATES | 2007 |
|
RU2351539C2 |
| METHOD OF PROCESSING BERYLLIUM CONCENTRATE MIXTURE | 2013 |
|
RU2546945C1 |
| METHOD OF BERILLIUM EXTRACTION FROM RAW MINERAL MATERIAL | 2008 |
|
RU2354727C2 |
| METHOD OF PROCESSING BERYLLIUM FLUORITE-CONTAINING CONCENTRATES | 2013 |
|
RU2547366C2 |
