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467 results about "Phloroglucinol" patented technology

Phloroglucinol is an organic compound with the formula C₆H₃(OH)₃. It is a colorless solid. It is used in the synthesis of pharmaceuticals and explosives. Phloroglucinol is one of three isomeric benzenetriols. The other two isomers are hydroxyquinol (1,2,4-benzenetriol) and pyrogallol (1,2,3-benzenetriol). Phloroglucinol, and its benzenetriol isomers, are still defined as "phenols" according to the IUPAC official nomenclature rules of chemical compounds. Many such monophenolics are often termed "polyphenols" by the cosmetic and parapharmaceutical industries, but they cannot be by any scientifically-accepted definition.

Carbon aerogels for supercapacitors and method of manufacturing the same

A method for preparing carbon aerogels and carbon aerogels obtained therefrom are disclosed. The method for preparing carbon aerogels comprises: mixing organic starting materials including phloroglucinol and furfural with a solvent capable of dissolving the organic materials in a predetermined ratio to form a sol solution; adjusting pH of the sol solution adequately by using an acidic or basic catalyst, gelling the sol solution at room temperature under atmospheric pressure, and aging the resultant gels; substituting the solvent in thus obtained gels with liquid carbon dioxide, followed by drying in a supercritical state, to form organic aerogels; and pyrolyzing the organic aerogels in an electric furnace under inert atmosphere to obtain carbon aerogels. Particularly, the gels are formed at room temperature in a short period of time by adequately adjusting pH of the sol solution. Therefore, the method provides improved time efficiency and energy efficiency as compared to existing methods for preparing gels. Additionally, the method allows supercritical drying while avoiding a need for an additional solvent substitution, thereby simplifying the overall process. Further, the method enables preparation of carbon aerogels for supercapacitors having a high specific surface area and high capacitance even in the absence of additional activation step.
Owner:KOREA INST OF SCI & TECH

Treatment for wastewater of technique for producing spaston and cyclic utilization method for recycled organic matter

The invention provides a method of treating the phloroglucinol producing wastewater and the recycle utilization of the recovery organic compounds. The wastewater of the phloroglucinol producing with 2, 6-dichlorophenol and excess KOH as material is adjusted by hydrochloric acid to pH less than 3 before adsorbed by high-crosslinked adsorption resin. The secondary effluent water of adsorption is adjusted to be neutral by KOH before distilled. The KCl is recovered after the cooling crystallization and the centrifugal of the residue. The distilled effluent returns to the former manufacturing process to be indiscriminate used or biochemical treated by aerobic and discharges in standard. The distilled mother liquor merges into other batch of secondary effluent water of adsorption. The resin adsorbing the phloroglucinol is desorbed by KOH. The desorption liquid is applied in the hydrochloric acid acidization step of the former manufacturing process or hydrochloric acid is adopted directly to neutralize to be neutral before centrifugal separation to get phloroglucinol. By adopting the method, phloroglucinol and KCl can be recovered while the wastewater is treated. The pollution is reduced and the cost is saved. The organic combination of wastewater treatment and resource recovery as well as recycle utilization is realized.
Owner:YANCHENG TEACHERS UNIV

Method for improving phloroglucinol synthetic capability of engineering escherichia coli

The invention discloses a method for improving phloroglucinol synthetic capability of recombinant cells, and particularly relates to a method for improving the yield of phloroglucinol synthesized by a biological method through recombinant cell reconstruction by metabolic engineering means.
Owner:QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI

Carbon aerogel for electric adsorption electrode and preparation method for carbon aerogel

The invention provides a preparation method for carbon aerogel for an electric adsorption electrode. The metal nickel modified carbon aerogel is prepared by performing sol-gel reaction, normal-pressure drying and high-temperature carbonization on resorcinol, phloroglucinol, nickel acetate and formaldehyde which serve as raw materials and sodium carbonate serving as a catalyst. According to the preparation method, the reaction speed is properly adjusted by adjusting the content of the phloroglucino in the raw materials; by virtue of solvent replacement, organic aerosol is prepared under normal-temperature and normal-pressure conditions. The method provided by the invention is used for preparing the nickel-loading carbon aerogel, so that the specific surface area of the carbon aerogel is large, the pore volume and the aperture are large, and the resistivity is low; the carbon aerogel can be widely applied in the fields of treatment of a supercapacitor electrode and organic wastewater, removal of negative and positive ions, heavy metal ions and radioactive isotopes and the like. The preparation method provided by the invention is simple in preparation process and convenient and easy to operate and is short in production period; requirement on equipment is low, and industrialization development and popularization application are facilitated.
Owner:ENERGY RESOURCES INST HEBEI ACADEMY OF SCI

Preparation and application of covalent organic framework porous nano composite material

The invention discloses preparation and application of a covalent organic framework porous nano composite material, and belongs to the technical field of environmental protection. Firstly, 2,4,6-trialdehyde phloroglucinol (Tp) and benzidine (BD) are subjected to a Schiff base reaction under proper conditions to prepare a covalent organic framework (COF-TpBD), then diindium trisulfide (In2S3) nanoparticles are loaded on the COF-TpBD in situ, and the composite material (In2S3@COF) with In2S3 and COF characteristics is obtained. The In2S3@COF prepared by the method is rich in a large amount of Selement and can adsorb Hg2+ through HgS interaction, and on the other hand, the inherent large specific surface area and excellent pore size of the COF can also greatly improve the adsorption capacityto Hg2+. Inductively coupled plasma mass spectrometry test results show that the In2S3@COF has excellent Hg2+ adsorption performance. The method is simple, stable in structure, low in cost, environmentally friendly and high in adsorption and removal efficiency of Hg 2+ in a water body, and can be used as an efficient adsorbent for Hg 2+ in environmental wastewater.
Owner:NANCHANG UNIV

Carbon Aerogels for Supercapacitors and Method of Manufacturing the Same

A method for preparing carbon aerogels and carbon aerogels obtained therefrom are disclosed. The method for preparing carbon aerogels comprises: mixing organic starting materials including phloroglucinol and furfural with a solvent capable of dissolving the organic materials in a predetermined ratio to form a sol solution; adjusting pH of the sol solution adequately by using an acidic or basic catalyst, gelling the sol solution at room temperature under atmospheric pressure, and aging the resultant gels; substituting the solvent in thus obtained gels with liquid carbon dioxide, followed by drying in a supercritical state, to form organic aerogels; and pyrolyzing the organic aerogels in an electric furnace under inert atmosphere to obtain carbon aerogels. Particularly, the gels are formed at room temperature in a short period of time by adequately adjusting pH of the sol solution. Therefore, the method provides improved time efficiency and energy efficiency as compared to existing methods for preparing gels. Additionally, the method allows supercritical drying while avoiding a need for an additional solvent substitution, thereby simplifying the overall process. Further, the method enables preparation of carbon aerogels for supercapacitors having a high specific surface area and high capacitance even in the absence of additional activation step.
Owner:KOREA INST OF SCI & TECH

Cleaning agent for thick-film photoresist

The invention discloses a cleaning agent suitable for cleaning thick photoresist and with low etching performance, which contains (a) potassium hydroxide, (b) dissolvent, (c) pentaerythritol, (d) alkylol amine and (e) phloroglucinol. The cleaning agent for the photoresist can also be used for removing the photoresist and other residues on metal, metal alloy or dielectric medium substrates, has low etch rate on metal including copper (Cu) and the like simultaneously, and has good application prospect in microelectronics fields including semiconductor chip cleaning and the like.
Owner:ANJI MICROELECTRONICS (SHANGHAI) CO LTD

Method for synthesizing 5,7-dihydroxyflavone

The invention relates to a method for synthesizing flavone compounds, in particular to a method for synthesizing 5,7-dihydroxyflavone. The method comprises the following steps: in the presence of a condensing agent, reacting an active methylene compound (ethyl acetoacetate) with an acylating agent (benzoyl chloride), and importing benzoyl into the active methylene; selectively hydrolyzing the obtained product by utilizing ammonium chloride solution so as to remove acetyl, thus obtaining ethyl benzoylacetate; mixing the obtained intermediate with phloroglucinol to dissolve the obtained intermediate, then warming, vacuumizing and reacting to obtain a crude product; and refining the crude product by utilizing DMF (dimethylformamide) and ethanol so as to obtain the 5,7-dihydroxyflavone. The method provided by the invention has the advantages of rich sources of feed, low cost and short reaction step, and is simple in operation; and meanwhile, through the optimization of reaction conditions, the method also has the advantages of short reaction step, high yield, low cost, less environmental pollution and the like. The products prepared by the method can be used for preparing medicaments and the like.
Owner:HANGZHOU FST PHARMA

Preparation method for sulfur functionalization carbon foam

The invention relates to a preparation method for sulfur functionalization carbon foam, which comprises the steps of measuring components according to the parts by weight of phloroglucinol: surface active agent: monomer containing sulfur: ethanol: hydrochloric acid solution of 37% by mass: formaldehyde solution 37% by mass=1:1:0.02-0.4:5-50:5-50: 0.05-0.2:1; evenly mixing the phloroglucinol, the surface active agent, the monomer containing the sulfur, the ethanol and water, adding the hydrochloric acid solution to serve as a catalyst, adding the formaldehyde solution after mixing the mixed solution for 30-60 minutes, continuously mixing the mixed solution for 30-60 minutes and enabling the mixed solution to be separated into an upper layer and a lower layer, continuously mixing the lower layer of solution obtained through separation for 3-24 hours, and obtaining polymer in a block shape; drying the polymer at the temperature of 40-100 DEG C for 2-24 hours, arranging the polymer in a tube furnace, protecting the polymer with nitrogen, heating the polymer to the temperature of 600-1000 DEG C at a temperature increasing velocity of 0.5-10DEG C / min for carbonization, and finally cooling the polymer naturally to the room temperature to obtain the sulfur functionalization carbon foam. The sulfur functionalization carbon foam prepared by the method has important application value foradsorbing and removing heavy metal mercury irons in waste water.
Owner:TONGJI UNIV

Preparation method of porous carbon nanosphere with controllable diameter

The invention relates to a preparation method of a porous carbon nanosphere with a controllable diameter. In terms of weight, phloroglucinol, terephthalaldehyde and water are taken in the proportion of 1:0.7-0.9:300-340. A phenolic prepolymer solution is obtained after being reacted for 15 minutes to 12 hours at the stirring speed of 400-1000 revolutions per minute at the temperature of 70 DEG C. In terms of weight, resorcinol, formaldehyde solution and ammonia water are taken in the proportion of 1:1.5-1.8:0.4-0.45, and mixed. A mixed solution is obtained. The mixed solution is added dropwisely into the phenolic prepolymer solution. The mass proportion of the mixed solution and the Phenolic prepolymer solution is 1:40-45. Obtained solution is reacted for 24 hours at the stirring speed of 400-1000 revolutions per minute and undergoes hydro-thermal treatment under the temperature of 100 DEG C, and polymer nanospheres are obtained after an obtained product is dried for 2-12 hours under the temperature of 40-100 DEG C. The polymer nanospheres are protected by inert gas in a tube furnace and heated to 600-1000 DEG C for carbonization at the heating rate of 0.5-10 DEG C per minute. The porous carbon nanaspheres can be obtained when the temperature of the polymer nanospheres naturally lowers to the room temperature. The porous carbon nanosphere is controllable in diameter, good in dispersity, and improtant in application prospect in aspects such as catalysis, environment, energy and biology.
Owner:TONGJI UNIV
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