QINGQUAN news and technical updates.
Company news, product updates and application articles for flotation and water-treatment users.
Company updates and application insights.
Browse QINGQUAN qualification updates, product news, safety reports and technical articles in one place.
How to Choose Magnesite Flotation Collectors for Silicate Removal
Magnesite flotation collectors used for desilication by reverse flotation must preferentially move unwanted silicate minerals into the froth while retaining magnesite in the non-floating product. Success means reducing the relevant impurities with an acceptable loss of valuable mineral. More froth, a lower silica assay, or a higher reported MgO grade cannot establish that result on […]
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How to Choose Fluorite Flotation Collectors for Calcite Rejection
Fluorite flotation collectors should be evaluated by how well they recover fluorite while limiting calcite in the concentrate. Higher recovery must be judged alongside the concentrate’s impurity requirements and its role in the process. That balance depends on mineral liberation, the collector–depressant combination, and the water and operating conditions used in the test. QINGQUAN offers […]
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Oxidizing vs. Non-Oxidizing Biocides in Industrial Cooling Water
Oxidizing and non-oxidizing biocides control microorganisms through different mechanisms. Oxidizing biocides act primarily through oxidation, while non-oxidizing biocides target specific cellular structures or biochemical processes, depending on the active ingredient. Neither category is automatically the better choice for every industrial cooling-water system. Selecting a suitable biocide requires more than comparing product names or active-content percentages. […]
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RO Antiscalant Dosing Calculation: From mg/L to Dosing Pump Flow
An RO antiscalant dosing calculation converts a selected feed-water dose into the required chemical mass flow and dosing-pump volume flow. For a dose expressed as supplied commercial product: Product consumption (kg/h) = Feed flow (m³/h) × Dose (mg/L) ÷ 1,000 Neat-product flow (L/h) = Product consumption (kg/h) ÷ Product density (kg/L) If the antiscalant is […]
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Phosphate Direct Flotation: How to Select a Collector for Apatite Recovery
Collector selection for phosphate direct flotation starts with ore mineralogy and process route, not collector dosage alone. In a direct-flotation circuit, the objective is to make the valuable phosphate mineral—commonly apatite—sufficiently hydrophobic to report to the froth while limiting the recovery of unwanted carbonate and silicate gangue. That balance depends on the collector chemistry, pH, […]
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