Police SI Exams Exam > Police SI Exams Notes > सामान्य जागरूकता/सामान्य जागरूकता > धातु विज्ञान
धातु विज्ञान | सामान्य जागरूकता/सामान्य जागरूकता - Police SI Exams PDF Download
धातु विज्ञान
धातु विज्ञान वह प्रक्रिया है जिसके द्वारा धातुओं को उनके अयस्कों से निकाला जाता है।
खनिज, अयस्क, और गंग
- खनिज: प्राकृतिक पदार्थ जिनमें धातुएं और अन्य अशुद्धियाँ एक संयुक्त अवस्था में पाई जाती हैं।
- अयस्क: खनिज जिनसे धातुओं को सुविधाजनक और लाभदायक तरीके से निकाला जा सकता है। सभी अयस्क खनिज होते हैं, लेकिन सभी खनिज अयस्क नहीं होते।
- गंग (या मैट्रिक्स): अयस्क के साथ जुड़ी हुई अशुद्धियाँ।
धातुओं के निष्कर्षण में शामिल चरण
- चरण 1: खनिज का चयन करना।
- चरण 2: खनिज को प्रोसेस करना।
- चरण 3: धातु का निष्कर्षण करना।
- चरण 4: प्राप्त धातु को शुद्ध करना।
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Apr 01, 2025
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