8results about How to "High charge density" patented technology

The present application relates to a kind of demulsifier for oily wastewater and its preparation method, belong to oily wastewater treatment technical field.The raw material component of the demulsifier includes 15-25wt% iron salt, 10-20wt% aluminum salt, 5-10wt% auxiliary salt and the balance deionized water;Auxiliary salt is the complex system of magnesium salt and zirconium salt;The demulsifier is complexed into intermediate by its raw material component, then polymerized at the temperature of ≤30 ℃.The synergistic effect of iron ion, aluminum ion, magnesium ion and zirconium ion, the prepared demulsifier keeps the oil removal rate at 95% or more in the range of temperature 5-40 ℃, salinity 0.5%-5%, pH 4.0-10.0, COD removal rate is more than 85%, and the performance stability is significantly better than traditional demulsifier, with high demulsification efficiency, low sludge yield, strong adaptability, green environmental protection, low cost and wide application scenarios, with high market value.

The application provides a clay anti-swelling agent composition and a preparation method and application thereof, and the clay anti-swelling agent composition comprises, in mass fraction, 5-20 wt% of polyether amine, 15-30 wt% of an organic ammonium salt, 8-16 wt% of a low-molecular-weight cationic polymer, 10-20 wt% of a polyvinylamine and 5-10 wt% of an organic acid, and the rest is water; the clay anti-swelling agent composition has the advantages of good anti-swelling effect, long-acting effect, prevention of clay particle migration, good temperature resistance, non-increase of formation water salinity, increase of formation permeability and the like, the anti-swelling rate is greater than or equal to 90%, the anti-swelling rate is greater than or equal to 92% after aging at 350 DEG C, the water washing resistance rate is 100%, the core permeability recovery rate is greater than or equal to 75%, and the core permeability retention rate is greater than or equal to 85%.

This invention relates to the fields of adsorbent preparation and heavy metal remediation technology, and particularly to an amorphous iron-magnesium-aluminum silicate, its preparation method, and its applications. This invention utilizes molten salt-mediated ion exchange and lattice recombination under high-temperature conditions to completely and uniformly transform various silicate minerals from complex and inconsistent natural clay minerals into a non-naturally formed, structurally homogeneous, and stable amorphous iron-magnesium-aluminum silicate. This overcomes the limitation of traditional adsorbents having a narrow applicable concentration range, exhibiting extremely strong removal capabilities for heavy metal ions from high to low concentrations, achieving deep purification. Based on the theory of "increasing configurational entropy," this invention proposes the design of a silicate network framework with dense, highly active sites and multiple metals, breaking through the traditional approach of "simple modification" of natural clay minerals. It fundamentally reconstructs their material composition, providing a material that combines low cost with revolutionary adsorption performance.

The application discloses a flocculant for coking wastewater and a preparation method and application thereof, and comprises the following raw materials in parts by weight: 1-5 parts of polydimethyl diallyl ammonium chloride and 6-12 parts of a composite, wherein the composite is prepared from kaolin loaded N-succinyl-O-carboxymethyl chitosan and konjac glucomannan. The application aims at solving the technical problem that coking wastewater cannot reach the discharge standard.

The application relates to the technical field of high-molecular fiber sensing, in particular to a high-toughness TPU / ANF / inorganic nanoparticle composite nanometer friction positive electrode material and a preparation method thereof. The preparation method takes TPU as a base main material, does not depend on a chemical cross-linking method, and realizes flexible adaptation of a complex deformation scene by virtue of excellent stretchable deformation performance and flexible characteristics of the TPU. Meanwhile, aramid nanofiber (ANF) is introduced as a reinforcing phase, the high-strength and high-modulus characteristics of the aramid nanofiber are utilized to improve the stress and strain capacity and mechanical stability of the base, the aramid nanofiber can lock the molecular structure in the TPU, and the aramid nanofiber can inhibit significant shrinkage of the material when the temperature is increased, so that the aramid nanofiber has the dual functions of mechanical enhancement and size stability, and the reliability of a generator is ensured.

The application discloses a kind of composite adsorption materials for water environment purification treatment and preparation method thereof, belong to water treatment functional material technical field.The composite adsorption material uses discarded cow hair as matrix, and the surface of matrix is formed by dopamine self-polymerization and co-deposition with metal composite powder to form polydopamine / metal composite powder coating, and polyallyl glycidyl ether is grafted on the coating by surface-initiated atom transfer radical polymerization, and finally, L-arginine or 2,4-diamino butyric acid is used for ring-opening modification.The metal composite powder is mixed by nano TiO2, nano ZrO2 and nano CeO2 in a specific ratio.The material is modified by zwitterion to give pH responsiveness, and can selectively adsorb anionic or cationic dyes under different pH conditions, and after adsorption saturation, the dyes can be eluted and recovered with dilute acid or dilute alkali, and photocatalytic regeneration can be realized by sunlight irradiation.

The invention relates to the technical field of oilfield chemistry, in particular to a urea cation homopolymer ionic liquid clay stabilizer and a preparation method thereof.The urea cation homopolymer ionic liquid clay stabilizer is formed by compounding urea and a cation homopolymer containing cation and hydroxyl repetitive units, chloropropene is added into a suspension liquid formed by mixing N, N-dimethylethanolamine and urea for a reaction, and the ionic liquid clay stabilizer is obtained. And adding a required amount of initiator into the ionic liquid A, and carrying out a reaction to obtain the urea cation homopolymer ionic liquid clay stabilizer. The urea cation homopolymer ionic liquid clay stabilizer contains strong polar molecules of a plurality of cations and hydroxyl groups, and is high in charge density, strong in washing resistance and remarkable in clay expansion prevention effect.

This invention belongs to the field of wastewater treatment technology, specifically relating to a reagent for treating mineral processing wastewater and its preparation method. The reagent comprises the following components by weight: 5-15 parts flocculant, 10-20 parts coagulant aid, 8-12 parts nonionic surfactant, 10-15 parts anionic surfactant, 1-3 parts foaming agent, 10-15 parts starch, and 20-30 parts water. This invention utilizes carbon nanotube-acetyloxyoxime acid complex-modified polyacrylamide as a flocculant, and combines it with samarium-doped polyaluminum magnesium chloride as a coagulant aid, to synergistically achieve the efficient and simultaneous removal of heavy metal ions, COD, and suspended solids.