6 results about "Sericite" patented technology

The application relates to the technical field of building materials, and particularly discloses a mortar material capable of degrading formaldehyde as well as a preparation method and application thereof. The mortar material capable of degrading formaldehyde comprises the following raw material components in mass fractions: cement 75-95 parts, quartz sand 100-130 parts, reinforcing agent 10-15 parts, water reducing agent 1-2 parts, dispersant 3-5 parts, stabilizer 0.5-1 part and composite degradation material 30-50 parts; wherein the composite degradation material comprises yttria modified sericite powder, expanded graphite powder loaded with manganese dioxide and tourmaline powder. The mortar material capable of degrading formaldehyde provided by the application has good compressive strength and bending strength and excellent formaldehyde degradation performance, can realize rapid formaldehyde degradation, does not need to rely on a light source, and effectively makes up for the defects of the prior art.

The invention relates to the technical field of building materials, and particularly discloses a mortar material capable of degrading formaldehyde as well as a preparation method and application of the mortar material. The mortar material capable of degrading formaldehyde comprises the following raw material components in parts by mass: 75-95 parts of cement, 100-130 parts of quartz sand, 10-15 parts of a reinforcing agent, 1-2 parts of a water reducing agent, 3-5 parts of a dispersing agent, 0.5-1 part of a stabilizer and 30-50 parts of a composite degradable material, wherein the composite degradable material comprises yttrium oxide modified sericite powder, expanded graphite powder loaded with manganese dioxide and tourmaline powder. The mortar material capable of degrading formaldehyde provided by the invention has good compressive strength and breaking strength and excellent formaldehyde degradation performance, can realize rapid degradation of formaldehyde, does not need to depend on a light source, and effectively makes up for the defects in the prior art.

The present application relates to the technical field of ore dressing, and in particular to a method for reducing the content of sericite in porphyry copper tailings. The method comprises the following steps: performing gravity separation grading operation on the porphyry copper tailings to obtain coarse-grained products and fine-grained products; feeding the fine-grained products into a magnetic separation operation to remove ferromagnetic minerals; performing multi-pass flotation operation on the high-intensity magnetic tailings to remove sulfide minerals; adjusting the pulp concentration and pH of the obtained desulfurization flotation tailings and feeding them into a reverse flotation operation, and the reverse flotation tailings are sericite products; the present application is aimed at the problem of high content of micro-fine-grained sericite in porphyry copper tailings dams, which increases the risk of dam collapse. The present application adopts a combined process of gravity separation-magnetic separation-desulfurization flotation-reverse flotation, the recovery rate of sericite in copper tailings is 26%-30%, the content of sericite in tailings is greatly reduced, and the safety of the dam body is improved.

The efficient separation method comprises the following steps that the low-grade iron lepidolite ore with the lithium oxide grade being 0.1%-0.3% is taken, the low-grade iron lepidolite ore with the lithium oxide grade being 0.1%-0.3% is crushed and then coarsely ground till the particle size is-0.6 mm, coarsely ground ore is obtained, and the proportion of the coarsely ground ore with the particle size being-0.6 mm + 0.3 mm is 50%-55%; modified water glass is adopted for stirring and dispersing the roughly-ground minerals, then a high-background magnetic separator with the background magnetic field intensity being 2-4 T is adopted for first-stage magnetic separation pre-enrichment, lepidolite rough concentrate is obtained, and tailing materials are removed; and regrinding the lepidolite rough concentrate product to obtain reground minerals, and carrying out flotation purification on the reground minerals to obtain a lepidolite flotation concentrate product and a flotation tailing product. After rough grinding, a high-background magnetic field strong magnetic separation method is adopted for pre-enrichment, a large number of siliceous nonmetallic minerals such as muscovite, sericite, quartz and feldspar with the surface properties similar to those of lepidolite are removed, and the follow-up flotation operation handling capacity and reagent cost are reduced.

The application provides a C 180 8 cemented sand gravel building material composition and preparation method and application. The composition comprises the following components: cement, fly ash, aggregate A, aggregate B, water, cemented sand gravel special additive, the cement, fly ash, aggregate A, aggregate B and water are weighed according to component allocation ratio, are uniformly mixed and stirred, then the cemented sand gravel special additive is added, is uniformly mixed and stirred, and the product is obtained. The prepared product breaks through the lithology, structure and physical properties of cemented sand gravel aggregate and expands the selection and use range of the cemented sand gravel aggregate, the mixing ratio of different aggregates is proposed, the structure and stress characteristics of the dam are combined, the cemented sand gravel aggregate is successfully applied to each partition part of the dam body, and a precedent of using extremely thin layer and thin layer phyllitic sericite slate as concrete aggregate is created.