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44results about How to "Enhanced solubilization" patented technology

Method for synthesizing imide group modified low-molecular-weight line-type phenolic resin and sensitization imaging composition containing imide group modified low-molecular-weight line-type phenolic resin

The invention relates to a method for synthesizing imide group modified low-molecular-weight line-type phenolic resin. The method includes the following steps: in N, N-dimethyl formamide or a mixing solution mainly containing the N, N-dimethyl formamide, paraaminophenol reacts with anhydride in dicarboxylic acid to obtain an amide carboxylic acid phenolic compound; under catalysis of acid catalysts like oxalic acid, the amide carboxylic acid phenolic compound and 2, 6-dihydroxytoluene paracresol have polycondensation and a dehydration ring closing reaction to obtain the imide group modified low-molecular-weight line-type phenolic resin. The invention further comprises a sensitization imaging composition containing the modified phenolic resin. The sensitization imaging composition comprises the modified phenolic resin, film-forming resin, an optical active compound, a background dye and the like; the modified phenolic resin has the excellent alcohol-resisting performance, an alkali developing solution has the high dissolution-promotion performance, and therefore an obtained board has the high alcohol-resisting performance, the high sensitivity and the high resolution ratio.
Owner:威海经济技术开发区天成化工有限公司

Preparation process of beta-glucan

The invention discloses a preparation process of beta-glucan. The process comprises the following steps of firstly screening strains: preparing a plurality of strains, qualitatively detecting the strains by using a Congo red agar staining method, detecting the beta-1, 3-glucanase activity of each strain, and screening out the strain with the relatively high enzyme activity as a strain to be cultured; and secondly culturing the strain: performing slant seed culture for 7-8 days first, and then inoculating the strain to a plate culture medium for culture, wherein the plate culture medium comprises the following components: 28-30 g / L of glucose, 1-2 g / L of potassium dihydrogen phosphate, 6-10 g / L of yeast extract, 18-20 g / L of agar, 1-2 g / L of magnesium sulfate and 2-3 g / L of ammonium chloride. The preparation process of the beta-glucan is reasonable in design and easy to operate; the beta-glucan is prepared through fermentation, separation and purification of schizophyllum commune and optimization and improvement of various parameters and steps; the beta-glucan is good in water solubility, high in biological activity and relatively high in crude sugar yield, retention rate and purity; and the preparation process can be applied to large-scale production, is low in cost and has relatively high practicability.
Owner:SHANGHAI JAKA BIOTECH CO LTD

A method for remediating oil-contaminated soil

The invention discloses an oil contaminated soil remediation method. The method comprises the following steps: (1) preparing an inorganic culture solution; (2) adding a composite carbon source into the inorganic culture solution, performing high temperature sterilization, inoculating pseudomonas aeruginosa, and performing constant temperature culture for 96-108 h; (3) diluting a fermentation brothwith clean water and adjusting pH with NaOH to form a cleaning solution; (4) adding oil contaminated soil into the cleaning solution, and performing ultrasonic cleaning for 3-4 min at an ultrasonic frequency of 10-20 kHz; and (5) performing filtering and centrifugal separation on the mixture. The method adopts a method of "treating pollution with pollution", a pollutant is used as an inducing factor to be added into a specific culture medium, and then a produced fermentation broth acts on the pollutant. The fermentation broth production process has low requirements, obtaining of the production raw materials are convenient, no foreign microorganisms are introduced, ultrasonic equipment is simple and easy to operate, the cost for treating the oil-contaminated soil is low, and the method hasno damage to a soil structure, no secondary pollution, and high efficiency, and has significant remediation effects.
Owner:西安罗克环境修复有限公司
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