10results about "Purification using ion-exchange materials" patented technology

The present invention relates to methods to produce crystalline lactose, more specifically lactose obtained from a biotechnological production process.

A simple method for animal-free lactose synthesis. The present invention relates to a method for producing lactose, more particularly without separation from mammalian milk. Further, the present invention provides a method for purifying the lactose produced.

An aqueous binder composition for mineral fibres comprises: (a) a sugar syrup containing a reducing sugar and having a dextrose equivalent DE of at least 50 and less than 85; (b) a polycarboxylic acid component; (c) an amine component; and, optionally, (d) a reaction product of a polycarboxylic acid component (b) and an amine component (c).

The utility model discloses a mixed bed ion exchanger with prevent effect of blocking, including jar body, drain outlet and water inlet respectively located jar body top portion's bottom, the inside setting resin layer of jar body, the top of resin layer is equipped with the anti -block component for back flush discharge time and the microwave generator below resin layer, the anti -block component includes main pipeline, and the branch pipeline of detachable connection with main pipeline bottom, the bottom of branch pipeline is equipped with filter screen. Prevent the further entry of impurity and cause the phenomenon of jam in the inside of main pipeline, improve the sewage capacity, avoid resin agglomerate and be wrapped simultaneously, improve the regeneration effect and exchange capacity of resin, strengthen the effect of backwashing and regeneration, reduce the operation cost and maintenance workload.

The present invention relates to a method for controlling impurities in L-arabinose and its use. The method includes removing impurities from L-arabinose starting materials using an adsorption resin. The method and use provided by the present invention can effectively control the content of impurities such as 5-hydroxymethylfurfural and furfural in L-arabinose products, particularly by removing impurities from the source and upstream processes, thereby reducing the risk of toxicity and side effects of impurities, thereby improving the quality and safety of L-arabinose products.

A method of recovering a sugar by separating a fermentation inhibitor and the sugar from a sugar solution containing the fermentation inhibitor, the method including: bringing the sugar solution containing the fermentation inhibitor into contact with a basic anion exchange resin filled into a column, followed by separation of the fermentation inhibitor and the sugar by a difference in retention time therebetween through use of water as an eluent, and separate recovery of a fraction containing the fermentation inhibitor and a fraction containing the sugar, wherein the basic anion exchange resin is previously treated with a solution containing the fermentation inhibitor.

The present invention relates to a method for producing crystalline lactose, more particularly lactose obtained from a biotechnological production process.

The invention discloses macroporous weak-base anion exchange resin with high abrasion permeability resistance and a preparation method of the macroporous weak-base anion exchange resin, and belongs to the technical field of functional polymer materials. The resin is polystyrene ion exchange resin, the main chain of the resin contains an acrylic spacer group, the functional group for ion exchange is a nitrogen heterocyclic ring tertiary ammonium anion exchange group, the resin is doped with nitrogen heterocyclic ring compound intercalated hexagonal boron nitride particles, and the hexagonal boron nitride particles are bonded to a resin matrix through a nitrogen heterocyclic ring. The intercalation structure of the nitrogen-containing heterocyclic compound and the boron nitride is introduced into the styrene resin as the core, the strong oil absorption performance of the boron nitride is exerted, the internal driving force of the resin for pigment adsorption from the shell to the core is constructed, and the pigment treatment capacity of the resin is improved. The resin has excellent wear and seepage resistance, high temperature resistance, high anion and cation exchange capacity and high pigment adsorption performance, and can be widely applied to the field of food processing such as sugar decoloration.

The application provides a sugarcane juice decalcification resin regeneration liquid treatment method and a sugarcane juice decalcification method. The clear liquid obtained by treating the sugarcane juice decalcification resin regeneration liquid by a sodium carbonate chemical method is configured as a regeneration agent of the sugarcane juice decalcification resin. The sugarcane juice decalcification method removes calcium ions in the sugarcane juice by using continuous multi-column ion exchange resin columns, and the regeneration agent of the decalcification resin is repeatedly recycled by using the sodium chloride clear liquid obtained by treating the regeneration liquid by the sodium carbonate chemical method, so that the environmental protection treatment problem of the regeneration liquid is solved, the residual sodium chloride in the regeneration liquid can be fully utilized, and the input amount of the regeneration agent is reduced. The sodium chloride clear liquid obtained by excessively reacting the sodium carbonate with the calcium chloride in the regeneration liquid does not affect the regeneration work of the calcium saturated resin column, the adsorption effect of the resin is good after the regeneration, and the resin treatment capacity remains stable. The sodium carbonate chemical treatment process can realize the resource recycling of the regeneration liquid, reduces the discharge of wastewater in actual mass production, and reduces the industrial production cost.

The present invention is advantageous over conventional methods and products. In one embodiment, the method comprises separating a mixture of allulose, fructose, glucose, and glucooligosaccharides (wherein the separation comprises using simulated moving bed chromatography) and recovering allulose in high purity and yield. In one embodiment, simulated moving bed ("SMB") chromatography is used to separate the allulose-rich fraction from a fructose- and glucose-rich fraction, and to separate the fructose-rich fraction from a glucose-rich fraction. In one embodiment, the method provides for the separation of allulose from a mixture of allulose, fructose, and D-glucose, wherein the mixture is produced from high fructose corn syrup ("HFCS") when HFCS is contacted with allulose epimerase. In one embodiment, the method produces a high-quality allulose product. In one embodiment, the fructose-rich fraction can be recycled for contact with allulose epimerase.