33results about How to "Good slurry stability" patented technology

Methylhydroxyethyl cellulose may be used as an additive in cement slurries in the treatment of wells to prevent or reduce the occurrence of gas channeling. In addition to acting as a gas control additive, methylhydroxyethyl cellulose controls fluid loss, minimizes free fluid and stabilizes foam during cementing of the well.

The method of making optical fluoride crystal components provide optical components with beneficial final polished transmission surfaces for transmitting below 200 nm wavelengths of light, such as produced by excimer lasers and utilized in optical lithography. The invention utilizes colloidal silica soot in the polishing of optical fluoride crystal surfaces. This colloidal silica soot is a byproduct of chemical vapor deposition processing of fused silica or ultra low expansion glasses. The colloidal silica byproduct is referred to as "soot". Retaining the same physical properties as the parent glass and having a spherical morphology, the colloidal silica soot is an ideal for final polishing applications of optical fluoride crystals, and particularly for optical fluoride crystals such as calcium fluoride which have high transmission levels to below 300 nm light such as produced by excimer lasers. The soot has a large particle size and spherical shape when compared to conventional colloidal or fumed silica.

A negative electrode active material for non-aqueous electrolyte secondary batteries which has particles of negative electrode active material, the particles of negative electrode active material containing a silicon compound (SiOx: 0.5≤x≤1.6) that contains a Li compound, including a carbon coating on at least a part of a surface of the silicon compound and a salt coating containing one or more kinds of a metal silicate containing a metal element other than a lithium element and a metal salt containing a metal element other than the lithium element on a part of a surface of the silicon compound or a surface of the carbon coating or both of these. Thus, the negative electrode active material for non-aqueous electrolyte secondary batteries having high stability to an aqueous slurry, high capacity and excellent cycle characteristics and initial efficiency may be provided.

A negative electrode active material particle including: a silicon compound particle containing a silicon compound that contains oxygen, wherein the silicon compound particle contains a Li compound; and the negative electrode active material particle including aluminum phosphorous composite oxide attached to at least part of the surface, wherein the aluminum phosphorous composite oxide is a composite of P2O5 and Al2O3, and the P2O5 and the Al2O3 are in a mass ratio in a range of 1.2<mass of the P2O5 / mass of the Al2O3<3.0, wherein the negative electrode active material particle including aluminum phosphorous composite oxide has at least one peak in a region of a binding energy of more than 135 eV and 144 eV or less in a P 2p peak shape given in an X-ray photoelectron spectroscopy.

The invention belongs to the field of building materials, and specifically discloses a cement-based grouting material for fan foundation reinforcement and a preparation method thereof. The raw material composition of the cement-based grouting material is as follows: 65% to 85% of cement, 10% to 37% of admixture, 0.2% to 0.6% of water reducing agent, 0.02% to 0.05% of defoamer, The expansion agent is 2% to 10%, the rheological stabilizer is 0.05% to 0.25%; the water is 18% to 25%, and water is removed, and the total weight of each component is 100%. The cement-based grouting material for fan foundation reinforcement provided by the invention has the advantages of high fluidity, high strength, micro-expansion, high durability and the like.

A negative electrode active material for a non-aqueous electrolyte secondary battery, containing a negative electrode active material particle, wherein the negative electrode active material particle includes a silicon compound particle containing a silicon compound (SiOx: 0.5≤x≤1.6), the silicon compound particle contains a Li compound, at least a part of the silicon compound particle is coated with a carbon material, and an O-component fragment and a CH-component fragment are detected from the negative electrode active material particle in a measurement by TOF-SIMS, and a ratio of a peak intensity A of the O-component fragment to a peak intensity B of the CH-component fragment is 0.5≤A / B≤100. This provides a negative electrode active material for a non-aqueous electrolyte secondary battery capable of increasing battery capacity and improving the cycle characteristics and battery initial efficiency.

The invention discloses a method for preparing oily sludge blended coal water slurry by using a fluorine-containing polycarboxylic acid dispersing agent through ultrasonic dispersion. The method comprises the following steps: firstly, dispersing components of oily sludge through ultrasonically intensified mass transfer, so as to improve the stability and the uniformity of an oily sludge system, subsequently adding the fluorine-containing polycarboxylic acid dispersing agent in the process that the oily sludge is blended with the coal water slurry, so that oil, water and sludge form a uniform and stable system; dispersing the prepared coal water slurry by using the ultrasonic waves after the oily sludge is blended into the coal water slurry to prepare slurry, so that the stability and the uniformity of the coal water slurry are further improved and the prepared coal water slurry has relatively high coal slurry concentration, good flowability and good slurry forming stability. The needed equipment is simple, the oily sludge treatment efficiency is high, the oily sludge which is tempered by using the ultrasonic waves can be directly blended with coal to prepare the coal water slurry which can be gasified for use in a conventional coal water slurry preparation process, a guarantee is provided when the oily sludge resource is utilized to be blended into the coal water slurry, harmless treatment and resource utilization of the oily sludge are achieved, and relatively high industrial application values are achieved.

The invention relates to printing gum for polyester fabrics and a novel low-gum printing method. The novel low-gum printing method is realized by the aid of a combination synergia effect of a printing gum composition for the polyester fabrics. The printing gum composition is used for replacing high-concentration sodium alga acid gum for printing polyester fabrics, and problems that the conventional printing gum is difficult to clean, utilization quantity is high, wastewater COD (chemical oxygen demand) is high, disperse dye fixation degree is low, dyeing fastness is poor, color mixing is severe, efficient soaping process flow is long, and the like are resolved. By the aid of the printing gum composition for the polyester fabrics and the novel low-gum printing method, the process flow of a printing processing procedure of fabrics is reasonable, the quantity of wastewater is reduced, a production process is clean and environment-friendly, the quality of products is table, and dye color yield is high.

The invention provides a post-tensioned pre-stressed concrete beam pipeline grouting agent. The post-tensioned pre-stressed concrete beam pipeline grouting agent comprises the following components in parts by weight: 0.5-10 parts of a water reducing agent, 0.1-5 parts of a plastic expanding agent, 5-20 parts of a hardening swelling agent, 5-15 parts of a suspending agent, 0.001-0.05 part of a water-retaining agent, 0.01-0.5 part of an antifoaming agent, 0.1-4 parts of a thixotropic agent, 0.1-8 parts of a lubricating agent and 10-80 parts of a mineral admixture. The post-tensioned pre-stressed concrete beam pipeline grouting agent has the beneficial effects that the pipeline grouting agent has the characteristics of being quick in flow second, good in fluidity retaining, good in slurry stability, un-bleeding and the like, and therefore, the pipeline grouting agent can be used for effectively protecting steel strands, is suitable for post-tensioned pre-stressed concrete beams of road bridges and culverts, and also can be used for concrete structure pipeline grouting of general engineering.