Companies in the mining, metal and minerals sector all over the world rely on LEWA pumps and systems in their processes.
From the explosives manufacturing, ore extraction and metal and mineral recovery to effluents treatment and final product finishing, our solutions have helped our clients to save energy and consumables while keeping high operational safety and low cost of ownership.
Our qualified equipment for mining and metal and mineral processing allows us to comply with all requirements in these industries. We offer EPC companies, operators, and end-users our complete portfolio of high-end metering, process and centrifugal pumps and pumping systems.
When developing our solutions we take industry standards as well as your requirements and circumstances into consideration. Wide range of pressures and flows, hermetically sealed units, high efficiency design and extreme safety are a matter of course for LEWA. We offer you a safe tool for ore extraction, treatment and finishing in the form of our pumps and systems. For example, with features as sandwich PTFE diaphragm for maximum pumping safety of cyanides and sulfuric acids, ensuring maximum cost-efficiency!
Our many years of experience mean that we are able to offer international engineering and project expertise to assist you in all phases of your project.
Count on an experienced supplier – LEWA!
Usually from an orebody, lode, vein, seam, and reef or placer deposit. This ores recovered by mining include metals, coal, oil shale, gemstones, limestone, chalk, dimension stone, rock salt, potash, gravel, and clay.
LEWA pumps and pumping systems are used to handle any chemical fluid applied in the extraction, processing and finishing of valuable minerals or other geological materials from the earth.
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| Process | Chemicals | Purpose |
|---|---|---|
| Size Reduction Processes | ||
| Spray drying | Mineral itself in suspension | Atomize, dry and homogenize the mineral into thin powder |
| Separation Processes | ||
| Leaching | Acid water | Lixiviant for copper, nickel and other metals |
| Activated Carbon | Gold extraction via adsorption of gold cyanide solution | |
| Anhydrous Ammonia | Lixiviant for nickel. Precipitant in uranium extraction | |
| Acqua Regia | Melting of palladium, gold and platinum | |
| Caustic Soda (Liquor & Pearl) | Elution stripping of gold adsorbed onto activated carbon | |
| Ferrous Sulphate | Cyanide detoxification in gold mining process | |
| Hydrochloric Acid | Pre‑elution treatment of activated carbon in gold mining | |
| Lead Nitrate | Accelerator in gold cyanidation | |
| Sodium Bisulphite (SBS) | Cyanide detoxification in gold mining | |
| Sodium Chlorate | Oxidant in uranium extraction | |
| Sodium Cyanide | Gold extraction using cyanidation heap leach, CIP or CIL processes | |
| Sodium Metabisulphite (SMBS) | Cyanide detoxification in gold mining | |
| Sulfuric Acid | Lixiviant in copper and nickel mining. Cyanide destruction in gold mining | |
| Flotation | Copper Sulphate Pentahydrate | Activator for sphalerite (ZnS), pyrite (FeS2) in base metal ores |
| Lead Nitrate | Activator for stibnite (Sb2S3) in antimony ores | |
| DSPcollectors | Range of specialty collectors | |
| Potassium Amyl Xanthate (PAX) | Strong, unselective collector | |
| Sodium Ethyl Xanthate (SEX) | Weak, highly selective collector | |
| Sodium Isobutyl Xanthate (SIBX) | Good general purpose collector | |
| Carboxymethyl Cellulose (CMC) | Selective collector with higher recovery than SEX | |
| Dextrin | Depressant for talc and gangue minerals in base metal ores | |
| Guar Gum | Organic Acid gangue depressant for orescontaining oxide minerals Depressant for carbon and galena (PbS) minerals in base metal ores Depressant for gangue minerals, particularly silicate in base metal ores | |
| Sodium Cyanide | Depressant for base metal ores | |
| Sodium Metabisulphite (SMBS) | Dispersant and pH control | |
| Sodium Sulphite | Range of specialty frothers | |
| Zinc Sulphate | Wide application general purpose frother | |
| Soda Ash | Sulfidising agent for oxide minerals | |
| DSF Frothers | Sulfidising agent and depressant for base metal ores | |
| Sodium Hydrosulphide | Gold precipitation | |
| Dewatering | Aluminium Sulphate | Inorganic flocculant for water treatment |
| Ferric Chloride | Inorganic flocculant for water treatment | |
| Ferric Sulphate | Inorganic flocculant for water treatment | |
| Polyacrylamide Flocculants | Range of nonionic, anionic and cationic polymers for thickening applications | |
| Refining Processes | ||
| Converting | Coal in suspension | Coal refinement through liquefaction |
| Solvents | Vehicle for suspension | |
| Oil | Vehicle for suspension | |
| Phenols | By-product of the conversion process | |
| Ammonia | By-product of the conversion process | |
| Hydrogen sulfide | By-product of the conversion process | |
| Hydrocyanic acid | By-product of the conversion process | |
| H2S scavenger | Agent to reduce the presence of sulfur(corrosive)in the process | |
| Paraffin | Final product | |
| Alcohols | Final product | |
When coal is refined, it is ground as fine as dust and mixed into a suspension kept at a high temperature. LEWA diaphragm metering pumps with a remote pump head are used for this.
LEWA process pumps are used to reinject sulfuric acid at 98% into the main pipelines that go to the heap leach sprinklers.
The ecoflow® diaphragm metering pump from LEWA is a true all-around talent in the field of metering and mixing and can be used in all industries.
The LEWA ecosmart® diaphragm metering pump is the inexpensive metering pump for various applications and can be ordered quickly and conveniently through the online store.
The ecodos® mechanical diaphragm metering pump from LEWA is suitable for all pumping and metering tasks in the low-pressure range.
The LEWA ecoflow process diaphragm pump is the top performer among innovative and universal process pumps for high-pressure process technology.
LEWA triplex is the most compact process pump in the world for high-pressure processes in all branches of industry. Contact us, we are happy to help!
LEWA is your pump expert in all things relating to high-pressure plunger pumps. We will help you find the right pump to use in the high-pressure range!
The NIKKISO Non-seal canned motor pump is perfectly suited for transfer and circulation tasks in the chemical industry. We are happy to help you make your selection.
LEWA provides you with custom-designed metering systems according to your specifications. Trust in our experience gained from 60 years of metering technology.
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