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Xinhai mineral processing equipment mainly include: grinding equipment, flotation equipment, dewatering equipment, magnetic separation equipment, and so on. Some of the equipment is Xinhai independent research and development, and has been awarded national patent. View details
Gold CIP Production Line adsorbs gold from cyaniding pulp by active carbon including 7 steps: leaching pulp preparation, cyaniding leaching, carbon adsorption, gold loaded carbon desorption, pregnant solution electrodeposit, carbon acid regeneration, leaching pulp. View details
“The sun is parching the earth like a big fireball, and the grass near the road...
High efficient thickener is a widely used thickener, which is improved according to traditional thickener. After upgrading, this thickener is equipped with NC reagent feeder. Generally, the purpose of dosing is to improve water quality and accelerate flocculation efficiency, such as flocculating agent. Here we introduce the research on flocculating agent during the operation of high efficient thickener.
Someone made research on a kind of new type starch flocculant with high efficient flocculating performance and dewatering performance, which is called STC-g-PDMC. STC-g-PDMC is a kind of high efficient flocculating agent used in effluent treatment and sludge dewatering, which is obtained that starch grafts methacryloyloxyethyl trimethyl ammonium chloride (DMC). This flocculating agent takes potassium persulfate as initiator in the synthesis process, acetone and ethanol are used for the deposition and purification of copolymer in the synthesis process, then weaken the toxicity. Besides, they analyzed copolymer through infrared spectroscopy (IR), magnetic resonance imaging, X-ray diffraction, thermogravimetric analysis and elemental analysis.
Contrasting starch with polyacrylamide, they found that the flocculation performance of new type flocculating agent is better than the above two kinds of traditional flocculating agents. Therefore, STC-g-PDMC is a new kind of flocculating agent with good application prospect and environmental protection effect.
What’s more, somebody took tapioca starch-grafting-polymethacrylamide (PMAM) copolymer as the flocculating agent to study. Tapioca starch-grafting-polymethacrylamide (PMAM) copolymer is synthesized by polymerization reaction, which is used to test its flocculation performance. As a result, the highest grafting rate and monomer conversion rate were 79.9% and 78% respectively. They also made copolymer characterization by infrared spectroscopic analysis, X-ray diffraction analysis, scanning electron microscope, differential scanning analysis, and thermogravimetric analysis. The average weight range of PMAM single polymer chain on this copolymer was 15.9~30.8×105g/mol. Compared with native starch, the grafting starch had higher viscosity and stability. Flocculation performance studies showed that this copolymer is superior to cassava starch and PMAM in flocculation performance. As the textile sizing agent, the cotton yarn that adopts this copolymer has much stronger tensile property (104MPa), while natural starch only has 34MPa.
Adding flocculating agent is a very important part in the operation of high efficient thickener, which can improve economic value greatly if used properly.
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© 2017 Shandong Xinhai Mining Technology & Equipment Inc.