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  • Offer Profile
  • SOLID-LIQUID SEPARATION SYSTEMS, SINGLE-USE SOLUTIONS & VIBRATORY MIXERS

    We develop, design and fabricate filtration systems for solid/liquid separation in the processing industries as well as Vibratory Mixers and Single-Use Technologies. 

Product Portfolio
  • FILTRATION SYSTEMS

  • AUTOMATIC SELF CLEANING FILTRATION SYSTEMS

    Sophisticated, highly automated and fully enclosed filtration systems for either wet or dry discharge, or alternatively for semi or fully continuous thickening. System benefits include high efficiency solids removal, precious metals (catalyst) recovery, patented heel volume filtration, cake washing, cake drying and in-situ cleaning of the filter media. DrM filters are routinely used in many industries including oil & gas, petrochemical, specialty chemical, fine chemical, environmental, mineral and metal processing, pharmaceutical, as well as food & agrochemical. Amongst candle filter suppliers DrM has proven to be one of the most versatile and flexible to adapt to any client request.

      • FUNDABAC® CANDLE FILTER

      • The unique cloverleaf shaped candle element design allows for efficient solid-liquid separation resulting in a polishing grade filtrate while guaranteeing adherence of the filter cake to the cloth throughout the entire filtration cycle, as well as effective and automatic cake discharge.
      • CONTIBAC® CANDLE FILTER

      • The CONTIBAC® is a slightly modified FUNDABAC® candle filter used as a continuous thickener, producing concentrated slurries. Clear filtrate at a high flow-rate is achieved. Solids are flushed back into the liquid and the thickened slurry is drawn off intermittently or continuously without interrupting filtration.
      • CONTIBAC® RX FILTER THICKENER

      • In solid-liquid separation processes fine particles are often suspended in large volumes of liquid having a low solids concentration. The large filtration area required to handle such streams is in turn resulting in large filter housings, structures, plant footprints and corresponding high CAPEX and OPEX.
      • CONTIBAC® SM FILTER

      • The CONTIBAC® SM Filter uses sintered metal (SM) elements as its filter media. It can be either utilized as a guard filter or alternatively used as a stand-alone filter when there is a requirement to filter high temperature liquids, where polymer textiles filter media would not be suitable.
      • HIGH FLOW CARTRIDGE FILTERS

      • DrM High Flow Cartridge Filter housings are designed for use with High Flow type, replaceable filter cartridges. This product line is for clients  who prefer an efficient low CAPEX filtration solution and are willing to tolerate the OPEX consequences, including ongoing cost, typical of replaceable filter cartridges.
      • FILTER OPTIONS

      • DrM can supply stand-alone candle filters or complete, skidded turnkey packages.  All of our filters are custom-designed to meet the needs of each application.  Unique Options are available above the minimum supply scope to optimize performance, operation efficiencies and flexibility.
    • CONTAINED LIQUID FILTER

    • THE FUNDASHIELD

      The FUNDABAC® Filter excels where large quantities of solids are involved. The filter is an enclosed equipment where the operator and the environment is protected from the process liquids. However, when it concerns smaller batches operators may be looking for alternatives with manual operation and batch-wise replacement of elements. Cartridge type filters usually fall into this category. However, they pose a containment risk when the housing is opened and the cartridges replaced.

      The FUNDASHIELD fills this gap and addresses containment issues during the change of cartridges. The filter elements are enclosed in a plastic bag and isolated from the environment. For installation the complete bag is placed within the pressure housing. However, the process fluid is not in contact with the housing. Instead, the bag is directly connected to the process piping and only the filter internals are exposed. When the housing is reopened for replacement of the bag, the operator does not get in contact with any potentially hazardous fluids.

      The filtering membranes are arranged in modules which vibrate vertically while keeping the liquid feed stationary. The relative velocity changes direction many times per second and creates turbulence on the membrane surface, thereby minimising the fouling layer. The vibrating mass is reduced to a minimum which also minimises the required energy input. The resulting heat input is significantly lowered and even for temperature sensitive products cooling may not be required.

      The FUNDAWAVE® handles the feed solution very gently as no large circulation pump is needed. A conventional circulation pump can damage cells, molecules or other sensitive substances during operation and by eliminating the circulation pump the FUNDAWAVE® is the most product gentle industrial scale MF and UF system available. Additionally, the elimination of the circulation pump produces uniform trans-membrane pressures throughout the unit and results in the sharpest membrane cut-offs of any industrial system.

        • FUNDAWAVE CROSSFLOW FILTRATION

        • THE FUNDAWAVE

          The FUNDAWAVE is a new filtration concept which targets applications that so far could not give satisfactory results with any type solid/liquid separation equipment. The equipment is based on the crossflow principle with membrane-based filtering media adapted to specific filtration duties. The flow rate is maintained by constantly removing the solids layer forming on the membrane. In contrast to standard tangential flow filtration equipment (TFF) the crossflow is accomplished by movement of the filter membrane across a stationary liquid.

          The FUNDAWAVE is an industrial crossflow filtration solution specifically targeted for applications where flux rates, capital investments, gentle filtration conditions, energy consumption and sanitary design play an important role. It continuously delivers low fouling filtration by keeping the media clean by vibrating shear forces.

            • TEST FILTER SYSTEMS

            • LAB AND PILOT FILTER SYSTEMS

              During selection, sizing and validation of process equipment laboratory and pilot testing are indispensable bench tools. In filtration processes they provide important data on flow, pressure, filtrate quality, residual moisture, washing yield, filter aid demand and other parameters. The insight gained serves the process engineer and plant designer for sound planning and specification of the full-scale production equipment. After the execution of significant pilot tests the determination of a performance or process guarantee is normally possible.
                • LAB SCALE CANDLE FILTERS

                • Lab scale candle filter testing at our customers’  facilities represents a win-win situation for both our customers and DrM alike.  Lab scale filter testing serves multiple functions. It permits us to show our customers that we can help them achieve their filtration as well as valuable liquid and solid recovery goals.
                • PILOT SCALE CANDLE FILTERS

                • Following lab scale testing, some of our clients wish to conduct pilot scale testing at their site to ensure compatibility with actual process conditions.  In this case, DrM’s field service representative will work closely with our client’s personnel. Our pilot scale filter units are typically connected directly to the client’s filtration process.
              • SPARE PARTS

              • DrM aims to support your business by keeping your DrM filtration systems and vibratory mixers, and by extension your filtration and mixing processes, running. We guarantee the highest quality spare parts and ensure that a comprehensive range of spare parts are available in the shortest delay possible for all FUNDABAC®, CONTIBAC®, STERIBAC® and FUNDAMIX® models. We offer advice on spare parts and on optimizing your filter’s and mixer’s maintenance cycles. This ensures that you get the best possible wear rates from our parts.
                    • SPARE PARTS

                    • Running the world’s most sophisticated liquid filtration systems and vibratory mixers requires world-class, proactive service and support options. DrM offers a spare parts program that is tailored to our clients’ specific system configurations and is optimized to meet its critical processing requirements.
                • MIXING SYSTEMS

                • DrM’s FUNDAMIX® Vibromixers mix liquids strictly by vibration. The absence of moving parts results in vortex-less mixing and homogeneous distribution and emulsification. Excellent pharmaceutical, microbiological and biochemical applications include insulin production, blood fractionations, preparation of sterile solutions, mixing of injectable suspensions in sterile vessels for ampoule filling, vaccine/oil emulsions, anaerobic fermentations, submerse culture of mammalian and plant cells, as well as protein solutions.
                      • FUNDAMIX® VIBROMIXER

                      • The FUNDAMIX® is a universal device for mixing liquids in open or closed vessels, under vacuum or pressure, even in sterile conditions.

                        It was invented and patented in the late 1960s by Dr. Hans Mueller and subsequently manufactured by Chemap AG under his ownership. The vibratory mixer product line was sold to Graber & Pfenningger GmbH in 1983 and was reacquired by DrM, Dr. Mueller AG in 2012 and renamed FUNDAMIX®.

                        The electro-magnetic drive operates at 50 to 60 Hz and transmits the vibration via the mixing device or mixing plate attached to a special clamp coupling into the medium.
                  • INDUSTRY SPECIFIC APPLICATIONS

                  • Please click on the following tabs to to see a selection of typical processes in which the FUNDABAC® and STERIBAC ® filters and CONTIBAC ® thickener system on one hand, and the FUNDAMIX ® Vibromixer on the other, have proven themselves repeatedly.
                      • CANDLE FILTER APPLICATIONS

                      • FUNDABAC®, CONTIBAC® & STERIBAC® FILTERS
                          • OIL & GAS PROCESSING

                            • Crude Oil Mercury Removal: Mercury removal from crude oil to prevent upsets in downstream processes, such as contamination of precious metal hydrogenation catalyst used in catalytic cracking
                            • FCC Catalyst Fines: FCC filtration in flue gas processes
                            • Gas Sweetening: Removal of carbon and FeS scale in amine treatment
                            • MEG Regeneration: Removal of low soluble salts or Hg in MEG regeneration processes
                            • Pigging Water Treatment: Removal of scale originating in pipelines
                            • Produced Water Filtration: Reduction of solids to prevent blocking of wells
                            • Sulfur Recovery: Sulfur removal in redox sulfur recovery processes
                          • BULK CHEMICAL & PETROCHEMICAL

                            • Adipic Acid: Thickening of raw adipic acid suspension in HNO3 prior to centrifugation
                            • Aniline: Catalyst recovery after hydrogenation
                            • Aromatics and Resins: Recovery of hydrogenation catalysts and salts in the production of aromatic amines or resins
                            • Butane Diol (BDO): Catalyst recovery in the production of BDO
                            • Catalyst Recovery: Recovery of precious metal catalysts (Pt, Pd, Rh, Ru) on carbon, Cu catalysts and Raney Nickel after hydrogenation (APP)
                            • Chlor Alkali: Brine polishing, CaSO4 filtration, HgS as well as metallic Hg removal in the chlor alkali industry
                            • Epoxy Production: Removal of NaCl after reaction in the production of high purity epoxy for PCBs
                            • Glycol
                            • Hypochlorites: Removal of iron, nickel and copper from sodium hypochlorite streams (APP)
                            • Lubricants: Wax removal during winterization of lubricants
                            • Olefins: Filtration of byproducts after neutralization in olefin resin production, such as C5 or C9 resins
                            • Oil Additives: Removal of catalysts, bleaching earth or impurities formed after reaction (APP)
                            • Polyols: Removal of salts formed in neutralization (APP)
                            • PPS Production: Removal of salts and other impurities in the production of PPS
                            • Purified Terephtalic Acid (PTA): Recovery of valuable product from waste stream
                            • Rubber Chemicals: Catalyst recovery after hydrogenation
                            • Synthesis Gas
                            • Toluene Diamine (TDA): Catalyst preparation, catalyst recovery and spent catalyst filtration in hydrogenation step (APP)
                          • SPECIALTY & FINE CHEMICAL

                            • Additives: Polishing of reaction solutions, catalyst recovery, decolorization
                            • Adhesives: Clarification of reaction solutions or catalyst recovery
                            • Coatings
                            • Cosmetics
                            • Decolorization: Removal of activated carbon containing adsorbed organic volatiles
                            • Dyestuffs: Recovery of intermediates, clarification of process liquids
                            • Flavors & Fragrances: Catalyst recovery after hydrogenation steps
                            • Pigments: Washing and purification of product, clarification of solutions
                            • Plasticizers: Filtration of crude and clean esters to remove alkaline salts, pigments and activated carbon
                            • Polymers: Clarification of solutions, catalyst removal
                            • Resins: Removal of Ca(OH)2 after product neutralization reactions as well as for the recovery of catalyst after hydrogenation production of C5/C9 petroleum resins
                            • Rubber Vulcanizer: Recovery of noble metal hydrogenation catalyst in the production of PPD
                          • ENVIRONMENTAL

                            • Biodiesel: Removal of impurities downstream of esterification
                            • Carbon Capture & Storage (CCS): Amine filtration in acid gas removal and CO2 sequestration plants, removal of activated carbon containing foaming agents to prevent amine loss and upset conditions
                            • Flue Gas Desulphurization (FGD): Separation of solids such as Me(OH)x or gypsum from flue gas scrubbing plants in power stations
                            • Incineration Waste Gas Treatment: Removal of solid particulate and SO2 in scrubber water (APP)
                            • Quench Water: Removal of carbon, Hg or dioxins from quench water
                            • Recycling: Recovery of products from industrial waste streams for recycling
                            • Solar Cell Production: Filtration of cutting/cooling water as well as removal of spent silicon from thickened slurry
                            • Wastewater: Removal of chemically precipitated toxic substances
                          • FOOD & AGROCHEMICAL

                            • Catalyst Recovery: Recovery of precious metal catalysts (Pt, Pd, Rh, Ru) on carbon and Raney nickel after reaction steps (APP)
                            • Crop Protection Chemicals: Recovery of hydrogenation catalyst in glyphosate production and other agrochemicals. Active carbon removal after decolorization
                            • Fatty Acids: Removal of heterogeneous catalyst after hydrogenation (APP)
                            • Lactose Syrup: Clarification of refined lactose syrup before crystallization
                            • Sugars: Removal of impurities in the production of starch syrup
                            • Sweeteners: Activated carbon filtration after decolorization steps as well as hydrogenation catalyst removal in the production of Sorbitol, Manitol, Xylitol, Aspartame and other sweeteners
                            • Vegetable Oil: Separation of debris, bleaching earth and activated carbon. Recovery of hydrogenation catalyst
                          • MINERAL & METAL PROCESSING

                            • Aluminum Recycling: Removal of salts from High Alumina Secondary Product (HASP) wash water solution
                            • Bauxite and Alumina: Multiple filtration steps
                            • Catalyst Production: Filtration and washing of Ra-Ni after production. Washing of noble metal catalysts during recycling
                            • Leaching: Removal of various impurities after leaching steps
                            • Lithium: Removal of low soluble salts from lithium solution in the production of high purity LiCO3
                            • Nickel Production: Purification of Ni electrolyte upstream of electro-winning
                            • Non-Ferrous Metals: Recovery of non-ferrous metal salts in weak sulfuric acid solution at smelters (APP)
                            • Potassium Nitrate: Removal of salt from potassium nitrate solution ahead of crystallization
                            • Rare Earth: Removal of mineral gangue solids from rare earth element rich liquor
                            • Steel: Filtration of Zn and Sn galvanization as well as phosphatizing bath treatment of pickling acids, filtration of rolling mill oils
                            • Titanium Dioxide: Pre and post-leach filtration. Pigment recovery from Moore filter filtrate as well as from tail gas scrubber acid, gypsum filtration from waste acid neutralization, black liquor filtration, residue leaching, salt separation in weak acid regeneration
                            • Zeolites: Filtration and washing of molecular sieves. Recovery of zeolites and molecular sieve materials after belt and vacuum filters
                          • PHARMACEUTICAL & BIOTECH

                            • Active Pharmaceutical Ingredients
                            • Antibiotics: Filtration of fermentation broths, removal of activated carbon from antibiotic solutions, washing and purification of antibiotic crystals
                            • Catalyst Recovery: Recovery of precious metal catalysts (Pt, Pd, Rh, Ru) on carbon and Raney nickel after reaction steps (APP)
                            • Cell Harvesting: Removal of debris from ruptured cells following fermentation
                            • Decolorization: Removal of activated carbon containing adsorbed organic volatiles
                            • Vaccines and Other Injectables: Filtration of cell debris and active ingredients after fermentation. Mixing of product solution prior to vial filling.
                            • Vitamins: Catalyst recovery, activated carbon removal, salt filtration and polishing of product solutions
                            • X-Ray Contrast agents: Catalyst recovery in the production of contrast agents
                          • ELECTRONICS

                            • Copper Foil Production: Polishing of high purity CuSO4 solution prior electrolysis to produce copper foil for PCBs.
                            • Graphite Oxide (GO): Filtration of oxidation agents and GO after reaction with graphite.
                            • High Purity Alumina (HPA): Filtration of Al(OH)3 after the purification stage to produce alumina for sapphire production.
                            • LCD Production: Removal of sludge from a mixture of very strong acids such as HF and HCl H2SO4 during the etching of LCD glass.
                            • Lithium Battery Production: Filtration of nano particles in the production of electrodes.
                            • Lighting: Filtration of halo phosphates.
                            • Silane: Filtration of DPR slurries in silane production.
                            • Photoresist: Filtration of caustics (NaOH).
                            • Silicon Ingot and Wafer Slicing: Separation of very fine particulate from cooling water.
                            • Silicon Wafer Shaping: Filtration of cooling water in backside grinding and sawing processes.
                        • VIBROMIXERS

                        • FUNDAMIX® VIBROMIXER
                            • FOOD AND BEVERAGE INDUSTRY

                              • Fruit Juices: Mixing of fruit pulp without damage or degradation
                              • Bean Curd: Gentle mixing of bean curd agglomerates up to 10 mm prior to filling into cans
                              • Beer Fermentation: Intense mixing of mash with less impact on flavor
                              • Whisky: Mixing that results in the reduction of product aging process
                              • Wine: Mixing of different wines without introducting air with nitrogen blanketing
                              • Flavor: Preparation of flavor suspensions without splashing, eliminating injury risk
                            • CHEMICAL INDUSTRY

                              • Crystallization: Mixing with low shear forces to influence crystal growth and morphology
                              • Filter Aid: Mixing of precoat and body-feed suspensions for filtration applications
                              • Plastic Fibres: Suspension preparation of fibres and solvents
                              • Distillation & Hydrogenation: Batch time reduction
                              • Neutralizations: Intense mixing and pH neutralization of waste water
                              • Paper Resin: Quantification of resin concentration
                              • Resuspension: Resuspension of filter cake for suction strainers
                              • Bearing Testing: Lube oil preparation for bearing tests over extended time periods
                              • Toluene: Emulsification of toluene and water
                              • Titanium Dioxide: Suspension preparation with acetone for cigarette filter production
                              • Copper: Dissolving of copper with sulfuric acid under high temperatures under ATEX directives
                              • Chromatography Columns: Packing of chromatographic columns with vibration
                              • Temperature Sensors: Packing of PT100 probes under vibration without air introduction