1. WO2026174518 - RESOURCE UTILIZATION METHOD AND DEVICE FOR LITHIUM-CONTAINING MOTHER LIQUOR

Publication Number WO/2026/174518

Publication Date 27.08.2026

International Application No. PCT/CN2025/078431

International Filing Date 21.02.2025

IPC

C01B 25/30 2006.1

C	CHEMISTRY; METALLURGY
01	INORGANIC CHEMISTRY
B	NON-METALLIC ELEMENTS; COMPOUNDS THEREOF
25	Phosphorus; Compounds thereof
16	Oxyacids of phosphorus; Salts thereof
26	Phosphates
30	Alkali metal phosphates

C01D 5/16 2006.1

C	CHEMISTRY; METALLURGY
01	INORGANIC CHEMISTRY
D	COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
5	Sulfates or sulfites of sodium, potassium, or alkali metals in general
16	Purification

C01D 5/00 2006.1

C	CHEMISTRY; METALLURGY
01	INORGANIC CHEMISTRY
D	COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
5	Sulfates or sulfites of sodium, potassium, or alkali metals in general

C02F 9/00 2023.1

C	CHEMISTRY; METALLURGY
02	TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F	TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
9	Multistage treatment of water, waste water or sewage

C02F 1/04 2023.1

C	CHEMISTRY; METALLURGY
02	TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F	TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1	Treatment of water, waste water, or sewage
02	by heating
04	by distillation or evaporation

C02F 1/28 2023.1

C	CHEMISTRY; METALLURGY
02	TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F	TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1	Treatment of water, waste water, or sewage
28	by sorption

View more classifications

C01B 25/30 2006.1

C	CHEMISTRY; METALLURGY
01	INORGANIC CHEMISTRY
B	NON-METALLIC ELEMENTS; COMPOUNDS THEREOF
25	Phosphorus; Compounds thereof
16	Oxyacids of phosphorus; Salts thereof
26	Phosphates
30	Alkali metal phosphates

C01D 5/16 2006.1

C	CHEMISTRY; METALLURGY
01	INORGANIC CHEMISTRY
D	COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
5	Sulfates or sulfites of sodium, potassium, or alkali metals in general
16	Purification

C01D 5/00 2006.1

C	CHEMISTRY; METALLURGY
01	INORGANIC CHEMISTRY
D	COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
5	Sulfates or sulfites of sodium, potassium, or alkali metals in general

C02F 9/00 2023.1

C	CHEMISTRY; METALLURGY
02	TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F	TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
9	Multistage treatment of water, waste water or sewage

C02F 1/04 2023.1

C	CHEMISTRY; METALLURGY
02	TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F	TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1	Treatment of water, waste water, or sewage
02	by heating
04	by distillation or evaporation

C02F 1/28 2023.1

C	CHEMISTRY; METALLURGY
02	TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F	TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1	Treatment of water, waste water, or sewage
28	by sorption

C02F 1/58 2023.1

C	CHEMISTRY; METALLURGY
02	TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F	TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1	Treatment of water, waste water, or sewage
58	by removing specified dissolved compounds

C02F 1/66 2023.1

C	CHEMISTRY; METALLURGY
02	TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F	TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1	Treatment of water, waste water, or sewage
66	by neutralisation; pH adjustment

C02F 1/22 2023.1

C	CHEMISTRY; METALLURGY
02	TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F	TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1	Treatment of water, waste water, or sewage
22	by freezing

C02F 1/00 2023.1

C	CHEMISTRY; METALLURGY
02	TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F	TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1	Treatment of water, waste water, or sewage

C02F 1/38 2023.1

C	CHEMISTRY; METALLURGY
02	TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F	TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1	Treatment of water, waste water, or sewage
38	by centrifugal separation

C02F 101/10 2006.1

C	CHEMISTRY; METALLURGY
02	TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F	TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
101	Nature of the contaminant
10	Inorganic compounds

View less classifications

Applicants

• 湖北万润新能源科技股份有限公司 HUBEI WANRUN NEW ENERGY TECHNOLOGY CO., LTD. [CN]/[CN]

Inventors

• 肖钲霖 XIAO, Zhenglin
• 彭堂平 PENG, Tangping

Agents

• 华进联合专利商标代理有限公司 ADVANCE CHINA IP LAW OFFICE

Priority Data

202510186003.7

19.02.2025

CN

Publication Language Chinese (zh)

Filing Language Chinese (zh)

Designated States

View all

AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CV, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IQ, IR, IS, IT, JM, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, MG, MK, MN, MU, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UY, UZ, VC, VN, WS, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, CV, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SC, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, ME, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)

Hide all

Title

(EN) RESOURCE UTILIZATION METHOD AND DEVICE FOR LITHIUM-CONTAINING MOTHER LIQUOR

(FR) PROCÉDÉ ET DISPOSITIF D'UTILISATION DE RESSOURCES POUR UNE LIQUEUR-MÈRE CONTENANT DU LITHIUM

(ZH) 含锂母液的资源化利用方法及含锂母液的资源化利用装置

Abstract

(EN) The present application provides a resource utilization method and device for a lithium-containing mother liquor. The resource utilization method for a lithium-containing mother liquor comprises the following steps: providing a lithium-containing mother liquor containing lithium ions and sulfate ions; mixing the lithium-containing mother liquor with a phosphate solution and then carrying out lithium precipitation treatment to obtain a lithium-containing slurry; carrying out solid-liquid separation treatment on the lithium-containing slurry to obtain a adsorption-feed liquor and a first solid material; using a titanium-based adsorbent to adsorb lithium ions from the adsorption-feed liquor to obtain an adsorption tail liquor; and carrying out concentration and crystallization treatment on the adsorption tail liquor, wherein a molar ratio of lithium ions in the lithium-containing mother liquor to phosphate ions in the phosphate solution is 3:(0.7-0.8). The resource utilization method for a lithium-containing mother liquor can improve the lithium recovery rate and the purity of the recovered product.

(FR) La présente invention concerne un procédé et un dispositif d'utilisation de ressources pour une liqueur-mère contenant du lithium. Le procédé d'utilisation de ressources pour une liqueur-mère contenant du lithium comprend les étapes suivantes consistant à : fournir une liqueur-mère contenant du lithium, laquelle contient des ions lithium et des ions sulfate ; mélanger la liqueur-mère contenant du lithium avec une solution de phosphate, puis réaliser un traitement de précipitation de lithium pour obtenir une bouillie contenant du lithium ; réaliser un traitement de séparation solide-liquide sur la bouillie contenant du lithium pour obtenir une liqueur d'alimentation d'adsorption et un premier matériau solide ; utiliser un adsorbant à base de titane pour adsorber des ions lithium à partir de la liqueur d'alimentation d'adsorption afin d'obtenir une liqueur résiduaire d'adsorption ; et réaliser un traitement de concentration et de cristallisation sur la liqueur résiduaire d'adsorption, un rapport molaire des ions lithium dans la liqueur-mère contenant du lithium aux ions phosphate dans la solution de phosphate étant de 3 : (0,7-0,8). Le procédé d'utilisation de ressources pour une liqueur-mère contenant du lithium permet d'améliorer le taux de récupération de lithium et la pureté du produit récupéré.

(ZH) 本申请提供了一种含锂母液的资源化利用方法及含锂母液的资源化利用装置。该含锂母液的资源化利用方法包括如下步骤：提供含有锂离子和硫酸根离子的含锂母液；将含锂母液与磷酸盐溶液混合后进行沉锂处理，获得含锂浆料；含锂浆料经固液分离处理，获得吸附前液及第一固体物料；采用钛系吸附剂吸附吸附前液中的锂离子，获得吸附尾液；以及，对吸附尾液进行浓缩结晶处理；其中，含锂母液中的锂离子与磷酸盐溶液中的磷酸根离子的物质的量之比为3:(0.7～0.8)。该含锂母液的资源化利用方法能够提高锂回收率以及提高回收产品纯度。

Related patent documents

CN119912101

KR1020257011152This application is not viewable in PATENTSCOPE because the national phase entry has not been published yet or the national entry is issued from a country that does not share data with WIPO or there is a formatting issue or an unavailability of the application.

EP2025715451This application is not viewable in PATENTSCOPE because the national phase entry has not been published yet or the national entry is issued from a country that does not share data with WIPO or there is a formatting issue or an unavailability of the application.

Latest bibliographic data on file with the International Bureau

The publication of an international application under the Patent Cooperation Treaty in PATENTSCOPE (which constitutes an element of the Gazette) does not imply the expression of any opinion whatsoever on the part of the International Bureau of WIPO concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.