公开(公告)号：US20240010774A1

公开(公告)日：2024-01-11

申请号：US18043940

申请日：2021-02-02

Applicant: SUNRESIN NEW MATERIALS CO. LTD.

Inventor： Chaoyang WANG ,  Cheng ZHANG ,  Dan WU ,  Weijie ZHAO ,  Yanjun LI ,  Qiong LIU ,  Xiaokang KOU

IPC: C08F212/12 ,  C08F212/08 ,  C08F212/14 ,  C08F220/44 ,  C08F220/56 ,  C08J9/28 ,  C08J9/36

CPC classification number: C08F212/12 ,  C08F212/08 ,  C08F212/18 ,  C08F220/44 ,  C08F220/56 ,  C08J9/286 ,  C08J9/36 ,  C08J2201/05 ,  C08J2325/12 ,  C08J2205/042

Abstract: A solid-phase synthesis carrier, a preparation method therefor and the use thereof, wherein a diene cross-linking agent with a similar reactivity ratio to styrene and two vinyl groups thereof not on the same benzene ring is selected as a cross-linking monomer, and is subjected to suspension polymerization to obtain a porous resin. The porous resin is then functionalized to obtain a porous resin with an amino or hydroxyl functional group. Compared with existing preparation methods, the reactivity ratio of the cross-linking agent and styrene is similar, which is beneficial to improving the uniformity of the chemical structure in the resin, forming uniformly distributed active sites and channels, and is beneficial to improving the reaction efficiency and reducing the mass transfer resistance. The preparation of oligonucleotides by using such a carrier as a solid-phase synthesis carrier can improve the yield and purity of the oligonucleotides.

公开(公告)号：US20230331591A1

公开(公告)日：2023-10-19

申请号：US18044321

申请日：2021-12-22

Applicant: SUNRESIN NEW MATERIALS CO. LTD.

Inventor： Heng LIU ,  Wenjin GAO ,  Suidang LI ,  Qiong LIU ,  Xiaokang KOU

IPC: C02F1/42 ,  C02F1/00 ,  C08F212/08 ,  B01J39/20 ,  B01J39/07 ,  B01J47/02 ,  B01J47/14 ,  B01J49/53 ,  B01J49/60

CPC classification number: C02F1/42 ,  C02F1/008 ,  C08F212/08 ,  B01J39/20 ,  B01J39/07 ,  B01J47/02 ,  B01J47/14 ,  B01J49/53 ,  B01J49/60 ,  C02F2101/105

Abstract: A resin for removing phosphorus from water body, and a preparation method therefor and an application thereof. The particle size of the resin is 0.5-0.8 mm; the resin has a porous structure, the specific surface area is 8-25 m2/g, and the pore size distribution is 3-15 nm, the wet apparent density is 0.68-0.74 g/cm3; the wet true density is 1.12-1.18 g/cm3: and the water content of the resin is 43-57% in percentage by weight. The resin is loaded with a functional group having a lanthanum-oxygen bond, so that the resin can selectively adsorb phosphate radicals in the water body. The resin can selectively remove phosphorus in the water body by using a mode of loading lanthanum on weak acid cation resin and utilizing high selectivity of the lanthanum-oxygen bond to phosphate radicals, is easy to resolve and low in synthesis cost, and can be repeatedly used. Phosphorus in eutrophicated water and waste water can be effectively removed, the content of phosphate radicals in the water body can be controlled within 20 ppm, the phosphorus removal cost of the water body is reduced and the resin has great advantages compared with conventional disposable phosphorus adsorbents.

公开(公告)号：US20230002854A1

公开(公告)日：2023-01-05

申请号：US17778776

申请日：2020-12-16

Applicant: SUNRESIN NEW MATERIALS CO. LTD. ,  MINMETALS SALT LAKE CO., LTD.

Inventor： Jia YU ,  Zengrong LI ,  Dayi ZHANG ,  Fumin GUO ,  Zhaofei HOU ,  Faman TANG ,  Mian WANG ,  Zhibo LUO ,  Chao ZAN ,  Suidang LI ,  Qiong LIU ,  Yongxiao SONG ,  Yun WANG ,  Xiaokang KOU

IPC: C22B26/12 ,  C22B3/24

Abstract: A new method for extracting lithium from salt lake brine, comprising the following steps: a salt lake old brine raw material, desorption liquid, low-magnesium water, and adsorption tail liquid pass through an old brine feeding pipe (2), a desorption liquid feeding pipe (4), a low-magnesium water top desorption liquid feeding pipe (3), and an adsorption tail liquid top desorption liquid feeding pipe (11), respectively, which are located above and below a rotary disc of a multi-way valve system (1); and after respectively entering corresponding adsorption columns (6) by means of a duct and channel within the multi-way valve system (1), the entire process procedure is completed from an adsorption tail liquid discharge pipe (7), a qualified desorption liquid discharge pipe (10), a lithium-containing old brine discharge pipe (8), and an adsorption tail liquid top desorption liquid discharge pipe (5); and the adsorption columns (6) are connected in series or in parallel by means of channels located in the multi-way valve system (1). The feature in which a multi-way valve device is simple and easy to operate is utilized, and in comparison with a fixed bed operating system, the utilization rate of lithium adsorbent may be increased by over 20%, the utilization efficiency of the lithium adsorbent may be increased by over 40%, and production costs may be reduced by 30-50%. Therefore, the stability of a qualified desorption liquid is improved, stable production is guaranteed, and year-round constant operation may be achieved.