Beneficiation of Values from Ores with a Help Leach Process
This Laos Patent “Beneficiation of Values from Ores with a Help Leach Process” is a public DIP intellectual-property record, filed by ANGLO AMERICAN SERVICES (UK) LTD on 2017-05-15; current status: Awaiting formal examination. Identifiers include application No. P/694; DIP id LAP694; protection kind Patent - PCT National Phase. Key dates: publication 2026-02-27. Classification: C22B 3/04. Inventor(s)/designer(s): Alexander, Daniel John, Filmer, Anthony Owen. Abstract hint: This invention relates to a process for recovering value metals from sulphide ore, including steps of crushing ore in a primary crusher (14…. This prose is informational only and does not constitute legal advice, ownership proof or an infringement opinion.
P/694
Mark
Key facts
- Type
- Patent
- App. no.
P/694- Status
- Awaiting formal examination
- Applicant
- ANGLO AMERICAN SERVICES (UK) LTD
- Agent
- Lao Trademark Agency
- Filing date
- 2017-05-15
- Publication
- 2026-02-27
- Protection kind
- Patent - PCT National Phase
- Priority
- US · 15/631,137 · 2017-06-23
- Applicant address
- ANGLO AMERICAN SERVICES (UK) LTD · 20 Carlton House Terrace, London, SW1Y 5AN, United Kingdom · GB
- Agent address
- Lao Trademark Agency · 148-149 Ban Sisavath Kang, Unit 16 Chanthabury District, P.O. Box: 925, Vientiane · LA
- Nice / IPC classes
- C22B 3/04
- Goods / services
- —
Process
Steps follow the current public status-
Filed
-
Formal examination In progress
-
Substantive examination
-
Published
-
Granted
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Abstract
This invention relates to a process for recovering value metals from sulphide ore, including steps of crushing ore in a primary crusher (14) to a size of about 40cm and less, passing the crushed ore through one or more of the following pre-beneficiation processes such as bulk sorting (16) and screening (20) followed by coarse floatation (46/50), or gravity separation or magnetic separation. A waste stream (54) from the pre-beneficiation process/es with a particle size greater than 100µm is stacked in a heap (26) and subjected to a heap leach. This integrated process utilises the pre-beneficiation techniques best suited to the characteristics of a particular orebody; and during the pre-beneficiation simultaneously creating a low grade stream that yields significantly higher recoveries than achievable by normal heap leaching of low grade run of mine ore.
This invention relates to a process for recovering value metals from sulphide ore, including steps of crushing ore in a primary crusher (14) to a size of about 40cm and less, passing the crushed ore through one or more of the following pre-beneficiation processes such as bulk sorting (16) and screening (20) followed by coarse floatation (46/50), or gravity separation or magnetic separation. A waste stream (54) from the pre-beneficiation process/es with a particle size greater than 100µm is stacked in a heap (26) and subjected to a heap leach. This integrated process utilises the pre-beneficiation techniques best suited to the characteristics of a particular orebody; and during the pre-beneficiation simultaneously creating a low grade stream that yields significantly higher recoveries than achievable by normal heap leaching of low grade run of mine ore.
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