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86results about How to "Not easy to break emulsion" patented technology

Emulsifying and flushing spacer fluid for improving cementing quality of oil-based drilling fluid and preparation method of emulsifying and flushing spacer fluid

The invention discloses an emulsifying and flushing spacer fluid for improving the cementing quality of an oil-based drilling fluid and a preparation method of the emulsifying and flushing spacer fluid. The spacer fluid is prepared from the following components in parts by weight: 200 parts of water, 5-10 parts of a surfactant, 70-75 parts of base oil, 4-15 parts of a suspension stabilizer, 0.2-3.0 parts of a fluid loss agent, 0.2-2.0 parts of a tackifier, 0.2-5.0 parts of a diluent, 80-400 parts of a weighting agent and 0.05 part of a defoamer, wherein the surfactant is prepared from cocoanut fatty acid diethanolamide CDEA and alkyl glycoside APG in a weight ratio of 1: 2. The emulsifying and flushing spacer fluid which has an emulsifying structure with permeating, dissolving, volume-increasing, carrying functions and the like has a preferable flushing capacity to the oil-based drilling fluid and mud cakes adhered to a casing wall. The surfacant molecules in the spacer fluid can be adsorbed on the surfaces of a casing and a well wall to improve the interfacial wettability, so that cement slurry and the casing and the well wall are better contacted and cemented, and therefore, the first and second interfacial cementation qualities for well cementation are improved.
Owner:SOUTHWEST PETROLEUM UNIV

Composite high-efficiency flocculating agent and sewage treatment method and matched sewage treatment device

The invention relates to a composite high-efficiency flocculating agent. The composite high-efficiency flocculating agent comprises an organic macromolecule emulsion breaker, an inorganic flocculating agent, an organic quick-acting coagulant aid and an inorganic micropowder oil absorption agent. A sewage treatment method comprises the steps: sufficiently stirring sewage and the composite high-efficiency flocculating agent in a flocculation reaction device, and performing the reaction; and press filtering a solution to be treated after the sufficient reaction by virtue of a plate-frame press filtering machine, delivering a press-filtered filter cake to a qualified institution to treat as a dangerous waste, oxidizing and sterilizing a filtrate by virtue of ozone, precisely filtering, filtering by virtue of activated carbon, and then discharging the filtrate after reaching the standard. The CODcr removal rate in the sewage after being treated by virtue of the sewage treatment process can reach more than 95 percent; and moreover, the emulsion breaking and flocculation process is completed by virtue of one-time chemical dispensing in the flocculation reaction device, and the reaction time only needs 30 minutes, so that high efficiency and rapidness are realized. The sewage with the chemicals is oxidized by ozone and filtered by the activated carbon, and the outlet water can be discharged after reaching the standard.
Owner:沈阳市天泉水处理设备有限责任公司

Environment-friendly water-based release agent and preparation method thereof

The invention provides an environment-friendly water-based release agent. The environment-friendly water-based release agent is prepared from the following raw materials: 15-17 wt% of natural wax; 0.1 to 2 wt% of polyethylene imine; 0.5 to 1 wt% of fatty alcohol-polyoxyethylene ether; 0.8 to 1.5 wt% of oleyl amine polyoxyethylene ether; 0.4 to 0.6 wt% of fatty alcohol polyoxyethylene ether phosphate ester; 1.4 to 2.2 wt% of polyethylene glycol mono-stearate; 0.2 to 0.4 wt% of a defoaming agent; 0.1 to 0.3 wt% of a preservative; and the balance of water. Compared with the prior art, the environment-friendly water-based release agent provided by the invention adopts components with specific contents, realizes better integral interaction, and is good in product demolding effect, high-temperature-resistant and free of pollution and residues. Experimental results show that the environment-friendly water-based release agent provided by the invention has relatively low viscosity, is convenient to use, can be directly sprayed, has extremely good stability, is not easy to demulsify, has temperature resistance of more than 180 DEG C and VOCs (Volatile Organic Compounds) of less than 1 ppm during use, is made of a pure water-based material, and is environment-friendly and pollution-free.
Owner:HAINAN BNK WATER BASED NEW MATERIAL CO LTD

Preparation method of total alkali of corydalis tuber, and corydalis tuber preparation and use thereof

The invention relates to a preparation method of total alkali of corydalis tuber, and a corydalis tuber preparation and use thereof. The preparation method of the total alkali of corydalis tuber, which is prepared by the invention, comprises: grinding, extracting and post-treatment, wherein the post-treatment comprises extracting ethyl acetate, concentrating, freezing and drying. In the invention, an ethyl acetate extracting method is adopted, so the recovery is easy, the recovery rate is high, the toxicity is low, the environment pollution is avoided, and ethyl acetate is an ideal solvent for industrial production; and the drawbacks of high volatility, low recovery rate, high production cost, and high toxicity to human beings and the environment of the conventional biological alkali extraction solvents which mainly are chloroform are overcome, and the production cost is reduced. The ethyl acetate extraction purity reaches over 80 percent. The invention also provides a corydalis tubertotal alkali preparation and the use of the corydalis tuber total alkali preparation in the preparation of medicines for treating gynecological diseases, in particular the use of the corydalis tuber total alkali preparation in the preparation of medicines for treating dysmenorrheal, abnormal menstruation or endometriosis.
Owner:傅宏征 +2
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