Watter tegnieke skei nikkelmineralen van gekneusdeerts?

Tyd:29 Junie 2021

Separating nickel minerals from crushed ore typically involves several techniques that aim to concentrate the desired minerals and remove gangue materials. These techniques include:

1. Comminution (Crushing and Grinding)Sure! Please provide the content you'd like translated to Afrikaans.

   • The ore is crushed and ground to liberate the nickel-containing minerals from the host rock or gangue. This step is essential to ensure that subsequent separation methods are effective.

2. Sop FlotasieSure! Please provide the content you'd like translated to Afrikaans.

   • Froth flotation is one of the most common methods used to separate nickel-bearing minerals from gangue.
   • The pulverized ore is mixed with water and specific chemical reagents such as collectors, frothers, and pH modifiers. Air is introduced, forming bubbles to which the nickel minerals attach and float to the surface as froth for recovery, while gangue minerals sink.
   • For sulphide nickel minerals such as pentlandite, flotation is highly effective.

3. Magnetiese SkeidingSure! Please provide the content you'd like translated to Afrikaans.

   • Magnetic separation may be employed if magnetically susceptible nickel minerals such as pyrrhotite are present in the ore.
   • A magnetic separator can concentrate these minerals by attracting them, leaving the non-magnetic gangue behind.

4. GravitasieskeidingSure! Please provide the content you'd like translated to Afrikaans.

   • Gravity methods like spirals, shaking tables, or dense media separation (DMS) are sometimes used for ores with significant density differences between the nickel minerals and gangue.

5. Hidrometallurgiese ProsesseSure! Please provide the content you'd like translated to Afrikaans.

   • For laterite nickel ores (rich in nickel oxides), pyrometallurgical techniques may be replaced by leaching processes, using acids or alkalis to dissolve the nickel. The nickel can then be recovered by precipitation, solvent extraction, or electrolysis.

6. Smelting en RaffineringSure! Please provide the content you'd like translated to Afrikaans.

   • In some processes, the concentrated ore is smelted to produce a nickel-rich matte, which is then refined further using hydrometallurgical techniques.

7. Selective FlocculationSure! Please provide the content you'd like translated to Afrikaans.

   • This method involves adding reagents that selectively bind to the nickel minerals but not to the gangue, allowing the desired particles to form clumps that can be separated.

8. High-Pressure Acid Leaching (HPAL)Sure! Please provide the content you'd like translated to Afrikaans.

   • For laterite ores, HPAL is used to extract nickel by treating the crushed ore with acid under high pressure and temperature.

Each of these techniques is selected based on the mineralogical composition of the ore (sulphide vs. laterite ores), the desired purity levels, and economic considerations. Often, a combination of these methods is used in a full processing plant.

Kontak Ons

Shanghai Zenith Mineral Co., Ltd. is 'n toonaangewende vervaardiger van breek- en maaltoerusting in China. Met meer as 30 jaar ondervinding in die mynbou masjineriebedryf, het Zenith 'n sterk reputasie opgebou vir die lewering van hoë kwaliteit brekers, meule, sand maak masjiene, en minerale verwerkingstoerusting aan kliënte regoor die wêreld.

Geleë in Sjanghai, China, integreer Zenith navorsing, produksie, verkope en diens, en bied volledige oplossings vir die aggregaat-, mynbou- en mineraalgroefbedrywe. Sy toerusting word algemeen in metallurgie, konstruksie, chemiese ingenieurswese en omgewingsbeskerming gebruik.

Toegewyd aan innovasie en kliëntetevredenheid, gaan Shanghai Zenith voort om vooruitgang te maak in intelligente vervaardiging en groen produksie, en bied betroubare toerusting en omvattende naverkope-dienste aan om kliënte te help om doeltreffende en volhoubare bedrywighede te bereik.

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