Company patents

Institute of Process Engineering, Chinese Academy of Sciences

Institute of Process Engineering, Chinese Academy of Sciences demonstrates a primary focus on materials science, with Separation Processes (Filtration, Distillation) accounting for 29.0% of its portfolio, despite a notable decline of -50.0% so far in 2026. Surprisingly, while materials remain dominant, there's a significant shift away from Pharmaceutical Preparations and Therapeutic Activity (Pharma), both experiencing a -100.0% decline in patent filings so far in 2026 after a brief resurgence in 2025.

Patent Trend by Technology Area

Yearly patent publications since 2023

Product themes

Product-level themes inferred from filings since 2023, with category chips showing where each theme appears. Select a theme to filter the patents below.

62 US filings (since 2023) · 12 categories · 25 themes

Carbon Dioxide Capture & Conversion

Technologies and materials for capturing carbon dioxide from gas streams and subsequently converting it into valuable chemical products or materials, rather than simply storing it.

Catalysts & ReactorsNon-metallic Inorganic Compounds
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13since 2023
0.0%YoY
Battery Material Recovery

Processes and apparatus for disassembling spent batteries and recovering valuable materials (e.g., metals, electrolytes, plastics) through mechanical, chemical, or electrochemical methods for reuse or sustainable disposal.

Batteries & Fuel Cells
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10since 2023
new
Gas Stream Purification

Technologies and systems for removing unwanted components or separating desired gases from a mixed gas stream, including adsorption, absorption, and membrane-based methods.

Separation Processes (Filtration, Distillation)
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10since 2023
-33.3%YoY
Lithium Battery Cathode Materials

Focuses on the composition, crystal structure, and synthesis methods of positive electrode active materials for rechargeable lithium-ion batteries, often involving complex metal oxides of nickel, cobalt, manganese, and lithium.

Compounds Containing Metals
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7since 2023
+200.0%YoY
Lithium Compound Synthesis for Batteries

Methods for synthesizing high-purity lithium compounds, such as lithium carbonate, lithium sulfide, or composite salts, specifically optimized for use in battery electrodes or electrolytes.

Non-metallic Inorganic Compounds
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4since 2023
+200.0%YoY
Hydrogen Production Catalysis

Catalytic processes and novel catalyst materials designed to efficiently produce hydrogen gas from various feedstocks, including hydrocarbons (e.g., methane, natural gas) and ammonia.

Non-metallic Inorganic Compounds
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4since 2023
n/a
Targeted Drug Formulation Delivery

Delivery systems specifically engineered to administer advanced drug formulations (e.g., microparticles, biologics, extended-release systems) to achieve precise targeting, controlled release kinetics, or enhanced therapeutic efficacy within the body.

Pharmaceutical Preparations
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3since 2023
new
Lithium Battery Anode Materials

Active anode materials and manufacturing techniques for rechargeable lithium-ion batteries, including silicon-carbon composites, graphite, lithium-metal anodes, and electrode coating processes that improve capacity, cycle life, and rate capability.

Batteries & Fuel CellsNon-metallic Inorganic Compounds
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3since 2023
+100.0%YoY
Advanced Adsorbent & Separation Media

Development of materials with tailored porosity, surface chemistry, or structure, such as metal-organic frameworks (MOFs), zeolites, or superficially porous particles, for selective adsorption, ion exchange, or chromatographic separations.

Separation Processes (Filtration, Distillation)Catalysts & Reactors
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3since 2023
0.0%YoY
Novel Catalyst Materials

Development and synthesis of catalysts with unique compositions or structures, such as medium entropy alloys, metal foam-supported catalysts, layered catalytic articles, or high-entropy oxides, to enhance activity, selectivity, or stability in chemical reactions.

Catalysts & Reactors
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3since 2023
-50.0%YoY
Metal Oxide Thin Film Deposition

Techniques for forming thin films of metal oxides or related metal compounds on substrates, often using solution-based methods, for applications in electronics, optics, or specialized coatings.

Compounds Containing Metals
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2since 2023
0.0%YoY
Battery Electrode Coating & Slurry

Slurry compositions and coating processes for battery electrodes, including binder/active-material slurries, surface coating layers, and electrode-to-foil adhesion for cathode and anode.

Batteries & Fuel Cells
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2since 2023
new
Cellular Immunotherapy

Therapeutic approaches involving the use of living cells, often genetically modified or ex vivo activated, to treat diseases, particularly cancer, by modulating immune responses or replacing damaged cells.

Therapeutic Activity (Pharma)
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2since 2023
new
Reactor System Design & Optimization

Engineering approaches to improve the efficiency, control, and performance of chemical reactors, encompassing continuous processes, heat exchange integration, and specialized reactor configurations for various chemical transformations.

Catalysts & Reactors
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2since 2023
n/a
Bioprocess Mixing Systems

Systems and components designed for mixing fluids in biological or pharmaceutical processes, often involving cell cultures, RNA synthesis, or nanoparticle formation, with considerations for sterility, automation, and precise control.

Mixing
Who else files here? →
2since 2023
n/a
Inline & Continuous Mixing

Mixing apparatus designed for integration directly into a fluid conduit or a continuous process stream, often employing static elements, impellers within a flow path, or multi-component injection for efficient, uninterrupted processing.

Mixing
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2since 2023
n/a
Mixing System Thermal Control

Integration of heating, cooling, or temperature regulation mechanisms within mixing devices or vessels to maintain specific process temperatures, prevent overheating, or induce thermally-driven reactions.

Mixing
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2since 2023
n/a
Advanced Magnetic Powder Materials

Development and processing of metal powders with specific magnetic properties, including soft magnetic alloys, permanent magnet materials, and insulated powders for electronic components, often involving precise control of particle size, morphology, and composition.

Powder Metallurgy
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1since 2023
new
Advanced Cell & Gene Therapies

Development of therapeutic approaches involving the genetic modification of cells (e.g., T cells, stem cells, macrophages) or the use of viral/non-viral vectors to deliver genetic material for disease treatment.

Pharmaceutical PreparationsPeptides & Proteins
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1since 2023
new
Recombinant Protein & Peptide Therapeutics

Development and application of therapeutic proteins or peptides produced through recombinant DNA technology, including fusion proteins and modified growth factors.

Therapeutic Activity (Pharma)
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1since 2023
new
Urethane/Urea Polymerization

Methods for synthesizing polyurethanes and polyureas, including non-isocyanate routes, using various monomers, catalysts, and curing agents, often for foams, coatings, or adhesives.

Polymer Synthesis (Polycondensation)
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1since 2023
new
Industrial Solid-Liquid Separation

Equipment and processes for separating solid particles from liquid or gas phases in industrial settings, encompassing mechanical screening, filtration of molten materials, and various filter media designs.

Separation Processes (Filtration, Distillation)
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1since 2023
n/a
Metal Additive Manufacturing Processes

Techniques for building three-dimensional metal objects layer-by-layer using metal powders, including powder bed fusion, binder jetting, and directed energy deposition. This theme encompasses process mechanics, equipment design, and operational control for AM systems.

Powder Metallurgy
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1since 2023
n/a
Polymers for Electronic Devices

Synthesis and formulation of polymers, such as epoxy resins, polyimides, or ionic binders, tailored for specific functions in electronic components like sealing, insulation, or energy storage.

Polymer Synthesis (Polycondensation)
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1since 2023
n/a
Immunomodulatory Protein Design

Design and engineering of proteins or peptides to directly modulate immune responses, including enhancing antigen presentation, suppressing inflammation, or activating specific immune cell types.

Peptides & Proteins
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1since 2023
n/a

Patents

Showing 1-10 of 81

Page 1 of 9
US 20260048997 A1APPLICATION
C01F11/46

METHOD FOR FLUORINE SEPARATION AND RECOVERY FROM PHOSPHATE ROCK ENHANCED WITH MICROBUBBLE COUPLED SILICON ADDITIVE

Filed:2025-08-14Pub:2026-02-19
Applicant:Institute of process Engineering Chinese Academy of Sciences

The present application provides a method for fluorine separation and recovery from phosphate rock enhanced with a microbubble coupled silicon additive, which includes: mixing the phosphate rock, phosphoric acid, and an active silicon additive, and subjecting the mixture to reaction to obtain a slurry; subjecting the slurry to microbubble generation treatment to obtain a microbubble slurry, and subjecting the microbubble slurry to recycling and returning to the reaction, where a released volatile fluoride is recovered; and after completing the reaction, a defluorinated slurry is obtained; and subjecting the obtained defluorinated slurry to acid-decomposition reaction and then solid-liquid separation to obtain phosphoric acid and phosphogypsum. In the method provided by the present application, a synergistic effect of microbubbles and the active silicon additive is used in the phosphoric acid acid-decomposition of phosphate rock, enhancing the fluorine impurities in phosphate rock to convert into volatile fluoride SiF4 and HF, achieving the highly efficient separation and recovery of fluorine, and a recovery rate of fluorine reaches 43.9% or more; moreover, the fluorine impurities are separated from the source in the acid decomposition of phosphate rock, thereby preventing fluorine from entering the subsequent wet phosphoric acid process.