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5919 results about "Macroporous resin" patented technology

Chemical industrial waste salt refining process

The invention relates to a chemical industrial waste salt refining process which comprises the following steps: pretreating high salt wastewater generated in the production process of aminobenzene ether and p-nitrophenol so as to adjust the pH value, adsorbing by using activated carbon, kieselguhr or macroporous resin, removing organisms and organic salts in the wastewater, reducing the COD of the wastewater, neutralizing the high salt wastewater, performing multi-effect evaporation or mechanical recompression so as to evaporate and crystallize, and centrifuging a solid salt; performing high-temperature calcination on the centrifuged solid salt in a rotary kiln or a tunnel kiln, thereby decomposing and oxidizing the organisms at a high temperature, further thoroughly combusting the tail gas generated through calcination in a heat accumulation type tail gas combustion furnace, preheating and recycling the tail gas, performing spraying absorption, dissolving the calcinated salt with water so as to prepare a saturated solution, filtering by using a precise filter, directly supplying the filtrate to ionic membrane caustic soda for use, or performing multi-effect evaporation or mechanical recompression on the filtered saturated salt water so as to evaporate, crystallize and purify, and performing centrifugation, thereby obtaining high-quality solid sodium chloride.
Owner:JIANGSU ZHONGDAN GROUP

Production process of high-purity sweet tea glycosides

ActiveCN102702284AAddresses issues where this product is not yet available in bulkEffective combinationSugar derivativesSugar derivatives preparationGlycosideIon exchange
The invention discloses a production process of high-purity sweet tea glycosides. The production process comprises the steps of extracting, condensing, flocculating, clarifying, centrifugally separating, refining macroporous resin, ion exchange resin decolorizing, using desalting resin for desalting, conducting composite decolorizing and condensing, and then conducting spray-drying on thick paste to obtain powder with color of milk white to white, namely, high-purity sweet tea glycosides with content of not less than 98%. The production process has the advantages that the high-purity debitterized sweet tea glycosides with content of not less than 98% and color of milk white to white can be produced in batch, so that the problem that the product can not be produced in batch on the market; the product can occupy the sweetener market; a feasible production process path is found to produce sweet tea glycosides in batch. According to chemical component characteristic of Guangxi sweet tea, key production links such as flocculating, clarifying, macroporous resin refining, ion exchange resin decolorizing and debitterizing, desalting resin for desalting and debitterizing, composite decolorizing and on the like are combined effectively.
Owner:GUANGXI DAIYUAN VEGETABLE PROD

Spina date seed reference extract and preparation method and application thereof

ActiveCN105203657AFeedback component information is comprehensiveSimple and fast operationComponent separationFerulaDissolution
The invention relates to spina date seed reference extract and a preparation method and application thereof and belongs to the technical field of traditional Chinese medicine quality control. The preparation method of the spina date seed reference extract includes the following steps of smashing, degreasing, extracting, macroporous resin purifying, silica gel purifying and acquiring of the spina date seed reference extract finally. Spina date seed medicinal materials are degreased, extracted and purified through a specific method, finally the spina date seed reference extract with specific constituents is acquired, and the reference extract includes jujuboside A, jujuboside B and other saponin constituents and further includes spinosin, 6'''-ferula asafetida spinosin and other flavonoid constituents. The spina date seed reference extract serves as a reference to be used in quality control over a traditional Chinese medicine preparation containing spina date seed medicine flavor and has the advantage that constituent information is comprehensively fed back; when the spina date seed reference extract is used, the complex pretreatment step is not needed, inspection can be directly conducted after dissolution, and the advantages of being easy and convenient to operate and low in detection cost are achieved.
Owner:广州市药品检验所

Vaccinium uliginosum cyanidin and separation and purification method thereof

The invention relates to an anthocyanidin made from Vaccinium uliginosum L. and separation and purification methods thereof, which belong to the technology field of active component extraction and purification and functional food development. The content of anthocyanidin in Vaccinium uliginosum L. is 29.8-40%, wherein the content of malvidin accounts for 4.68-5.48% of the anthocyanidin; and antioxidant activity of the anthocyanidin is as 7.8-15 times as that of Vc. The preparation method includes pre-treating raw material, cold soaking and concentrating, purifying and concentrating, and freeze dying. The ultrasonic and microwave-assisted cold soaking method is employed for separation, and an AB-8 macroporous resin static-dynamic combined absorption purification method is employed. The invention provides an environmental friendly, high-efficiency and low-cost separation and purification technology of anthocyanidin made from Vaccinium uliginosum L., which maintains product bioactivity such as antioxidant property of product and ideal separation effect, establishes the basis for wide utilization of abundant resource of Vaccinium uliginosum L. and industrialized development promotion of a series of Vaccinium uliginosum L. health food, and embodies great economic benefit and social benefit in deep processing of the Vaccinium uliginosum L.
Owner:吉林云尚保健食品有限公司

Preparation of compound polysaccharide humectant and application of compound polysaccharide humectant to cigarettes

The invention discloses the preparation of a compound polysaccharide humectant and application of the compound polysaccharide humectant to cigarettes. The preparation method comprises the following steps of: (1) crushing compound Chinese medicines such as Adenophora elata, dwarf lilyturf tuber, and platycodon grandiflorus, adding water, slightly boiling, performing reflux extraction, mixing extracting solution, and filtering; (2) adding protamex and high-temperature amylase into the extracting solution, and performing enzymolysis; (3) absorbing naturally cooled enzymolysis extracting solution by using a macroporous resin column, and collecting flow-through liquid; (4) concentrating the flow-through liquid in a rotary evaporator until the moisture is not evaporated to obtain the polysaccharide humectant; and (5) dissolving the polysaccharide humectant in water and adding into cut tobacco, wherein the humidification effect of cigarettes is remarkably improved, and the dry sensation of the cigarettes is reduced and the sweet degree of the cigarettes is strengthened when the cigarettes are smoked. The invention has the outstanding advantages that: the compound polysaccharide humectant can improve the aesthetic quality of the cigarettes, reduce the dry sensation of smoke, improve the sweet degree and comfort degree, and has remarkable effects of promoting the secretion of saliva or body fluid and humidifying; and the application of the technology cannot change the conventional cigarette processing technology, and the technology has actual application value.
Owner:广州华芳烟用香精有限公司
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