# Biosolvents & green solvents Bio-derived solvents — ethyl lactate from fermented lactic acid (Corbion's Biviture brand, Galactic's Galactic bio-solvents line, Vertec Biosolvents' corn-based MEK-replacements now under Shrieve Chemical ownership) and bioethanol-derived ethyl acetate — replacing MEK, toluene and xylene in paints, coatings, industrial degreasing and pharma processing, alongside BASF's biomass-balanced BMBcert intermediates that attribute renewable carbon into existing solvent families via mass-balance accounting — a mature commercial niche with no dedicated Chinese or Indian originator confirmed as of 2026. Source: https://en.bioecon.ru/technology/biosolvents-green-solvents/ Updated: 2026-08-18 ## Overview and value chain Markers: [EC: REACH chemical registration (EC 1907/2006) + EU Industrial Emissions Directive 2010/75/EU (VOC) | OECD: Industrial biotechnology | Regulator: REACH (EU), EPA (US)] Biosolvents are renewable-carbon drop-in replacements for petrochemical solvents such as methyl ethyl ketone (MEK), toluene, xylene and methylene chloride, used in paints and coatings, industrial degreasing, electronics cleaning, adhesives, and pharmaceutical processing — driven by REACH authorisation pressure on hazardous solvents, the EU Industrial Emissions Directive's VOC emission caps, and EPA VOC-exempt solvent listing. The dominant commercial chemistry is ethyl lactate: Corbion's Biviture brand markets high-purity ethyl L-lactate as a green solvent across ten key industries, sourced from sugarcane-fermented lactic acid; Galactic (Belgium) sells its Galactic bio-solvents line (Galasolv) via the ChemPoint and Comindex distribution networks alongside its broader lactic acid and lactates portfolio; and Vertec Biosolvents (United States, acquired by Shrieve Chemical Company) produces corn-derived ethyl lactate as a MEK replacement and has developed bioethanol-to-ethyl-acetate catalysis that eliminates the fossil feedstock dependency of conventional ethyl acetate production. BASF operates a parallel commercial route through biomass-balanced attribution: its BMBcert intermediates portfolio — expanded in July 2026 with three new REDcert2-certified additives (Dispex AA 4145 MB, Rheovis PU 1333 MB, Rheovis HS 1169 MB) for architectural coatings — allocates renewable carbon into existing solvent and intermediate families via mass-balance accounting of bio-based and fossil inputs within the Verbund. No dedicated Chinese or Indian biosolvent originator cleared source confirmation as of 2026. The key directions of biosolvents & green solvents are: 1. **Lactic-acid ester solvents (Lactic Acid Esterification Solvents):** esterification of fermentation-derived lactic acid with ethanol to produce ethyl lactate, the dominant bio-derived drop-in solvent — Corbion's Biviture, Galactic's bio-solvents, Vertec's corn-based products. 2. **Bioethanol-derived solvents (Bioethanol-to-Ethyl-Acetate Catalysis):** catalytic conversion of bioethanol to ethyl acetate, removing the fossil-feedstock dependency of conventional ethyl acetate production — Vertec Biosolvents. 3. **Biomass-balanced attribution solvents (Biomass-Balanced Solvent Attribution):** allocating renewable carbon from biomass feedstocks into existing solvent and intermediate product families via ISCC PLUS / REDcert2 mass-balance accounting within an integrated chemicals Verbund — BASF BMBcert. 4. **VOC-exempt and substitution-grade formulations (VOC-Exempt Biosolvent Formulation):** positioning bio-derived solvents as drop-in replacements for VOC-regulated petrochemical solvents (MEK, toluene, methylene chloride) under EPA VOC-exempt and REACH authorisation pressure — Vertec's MEK-replacement positioning, the common regulatory driver across all four firms. ### Sectoral value chain ``` [sugars / starches / bioethanol / biomass feedstock] ──> [fermentation to lactic acid or bioethanol] │ (intermediates: lactic acid, bioethanol) │ ▼ [bio-derived solvent molecule] <─── [esterification or catalytic conversion] <───┘ │ ▼ [paints, coatings, degreasing, pharma processing] ``` ### Value chain levels | Level | Description | Key inputs/outputs | |:---|:---|:---| | **Feedstock Sourcing** | sourcing renewable carbon feedstocks — sugarcane and corn sugars for lactic acid fermentation, starches or biomass residues for bioethanol, waste/residue biomass for mass-balance attribution | **In:** sugarcane juice, corn starch, cellulosic biomass, used cooking oil.
**Out:** fermentation-ready sugar stream or biomass-balanced attribution input. | | **Fermentation / Attribution** | microbial fermentation of sugars to lactic acid or bioethanol; or mass-balance attribution of biomass-derived carbon into fossil-feedstock streams within an integrated chemicals Verbund | **In:** sugar stream, production strain (lactic acid bacteria, yeast), or biomass-attributed feedstock.
**Out:** fermentation-grade lactic acid / bioethanol, or biomass-balanced intermediate stream. | | **Esterification / Catalytic Conversion** | lactic acid is esterified with ethanol to produce ethyl lactate; or bioethanol is catalytically converted to ethyl acetate via dehydrogenation / oxidation chemistry | **In:** lactic acid or bioethanol, ethanol, esterification catalyst.
**Out:** crude ethyl lactate or ethyl acetate. | | **Purification** | crude ester solvent is purified to high-purity (e.g. Corbion's high-purity ethyl L-lactate) and solvent-grade specification suitable for pharma, electronics, and coatings applications | **In:** crude ester solvent.
**Out:** high-purity bio-derived solvent. | | **Formulation & Blending** | purified bio-derived solvent is blended into finished solvent formulations — Galactic's Galasolv line, Vertec's MEK-replacement products, BASF's BMB-certified additive grades | **In:** high-purity solvent, formulation additives, certification scheme (ISCC PLUS / REDcert2).
**Out:** finished commercial solvent product. | | **End-use Application** | bio-derived solvents replace MEK, toluene, xylene and methylene chloride in paints, coatings, industrial degreasing, adhesives, electronics cleaning, and pharmaceutical processing | **In:** finished solvent product.
**Out:** applied solvent in coating line, degreasing bath, or pharma process. | Cross-cutting technologies of the sector: - **Lactic-acid esterification (Lactic Acid Esterification Solvents):** acid-catalysed esterification of fermentation-derived L-lactic acid with ethanol to produce ethyl lactate — the dominant bio-derived solvent chemistry, shared by Corbion, Galactic and Vertec. - **Bioethanol-to-ethyl-acetate catalysis (Bioethanol-to-Ethyl-Acetate Catalysis):** Vertec's process converting bioethanol directly to ethyl acetate via catalytic dehydrogenation, removing the fossil-feedstock dependency of conventional ethyl acetate (which is normally produced from ethylene via the Wacker process). - **Mass-balance attribution (Biomass-Balanced Solvent Attribution):** BASF's BMBcert approach of allocating renewable carbon from biomass feedstocks into existing solvent and intermediate product families within an integrated chemicals Verbund, certified under ISCC PLUS / REDcert2 schemes. --- ## US The US hosts the corn-based ethyl lactate producer Vertec Biosolvents, now operating under Shrieve Chemical Company ownership after a 2024 acquisition, with a bioethanol-to-ethyl-acetate catalysis platform eliminating the fossil feedstock dependency of conventional ethyl acetate production. ### Vertec Biosolvents, EPA VOC framework - **Vertec Biosolvents (United States, Shrieve Chemical subsidiary):** produces corn-derived ethyl lactate as a MEK replacement across paints, coatings and industrial degreasing applications, with a bioethanol-to-ethyl-acetate catalysis platform that eliminates the fossil-feedstock dependency of conventional ethyl acetate production; the company was acquired by Shrieve Chemical Company, integrating its biosolvent portfolio into Shrieve's broader specialty chemicals platform. - **EPA VOC framework:** bio-derived solvents marketed in the US fall under EPA's VOC-exempt and hazardous-air-pollutant frameworks, with Vertec's MEK-replacement positioning directly aligned to the EPA VOC-exempt solvent list (alongside TBAc, acetone, and other compounds that bypass the federal VOC emission controls that govern conventional MEK, toluene and xylene). --- ## CN No Chinese company cleared source confirmation as a dedicated biosolvent commercial originator as of 2026; the dedicated biosolvent-producer space remains concentrated in the EU (Corbion, Galactic, BASF) and the US (Vertec). Chinese industrial-biotechnology reporting in this period emphasises fermentation-derived long-chain dicarboxylic acids, lactic acid and bio-based polyamide (Cathay Biotech's Taijin project) rather than a dedicated Chinese-branded biosolvent product line. ### research gap, MIIT/NDRC industrial-chemical pathway - **Research gap:** Chinese lactic acid producers (Henan Jindan, Musashino) supply upstream fermentation feedstock for ethyl lactate but no Chinese-branded Galasolv-equivalent commercial biosolvent line was confirmed in 2026 sourcing. - **Regulatory pathway:** to the extent a Chinese-branded biosolvent product reached the market, industrial chemical registration would run through standard MIIT/NDRC industrial-chemical channels alongside VOC emission controls under GB 37824-2019 and related national standards, rather than a dedicated biotech pathway. --- ## EU Europe anchors the dedicated biosolvent market with three commercial producers — Corbion (Netherlands, Biviture brand), Galactic (Belgium, Galactic bio-solvents line) and BASF (Germany, BMBcert biomass-balanced intermediates) — collectively serving coatings, pharmaceutical processing and specialty industrial solvent markets under the REACH and EU Industrial Emissions Directive frameworks. ### Corbion, Galactic, BASF, REACH - **Corbion (Amsterdam, Netherlands):** markets high-purity ethyl L-lactate under its Biviture brand as a green solvent across ten key industries, sourced from sugarcane-fermented lactic acid; the Biviture brand sits alongside Corbion's broader lactic acid / lactates and TotalEnergies Corbion PLA bioplastics businesses (Luminy grades). - **Galactic (Brussels, Belgium):** sells its Galactic bio-solvents line (Galasolv) alongside the company's broader lactic acid and food-grade lactates portfolio, distributed via the ChemPoint and Comindex (IMPAG Group) networks across European industrial coatings and cleaning customers. - **BASF (Ludwigshafen, Germany):** operates a biomass-balanced attribution route through its BMBcert intermediates portfolio — expanded in July 2026 with three new REDcert2-certified additives for architectural coatings (Dispex AA 4145 MB, Rheovis PU 1333 MB, Rheovis HS 1169 MB), plus a biomass balance polyether polyol product portfolio — allocating renewable carbon from biomass feedstocks into existing solvent, intermediate and polyol families within the Verbund. - **REACH & IED framework:** bio-derived solvents manufactured or placed on the EU market fall under REACH chemical registration, evaluation and authorisation (the same regime as their fossil-derived counterparts), with the EU Industrial Emissions Directive 2010/75/EU VOC emission caps providing the downstream demand driver that pulls bio-derived solvents into coatings and industrial applications. --- ## Leading companies and research institutes | Company / Institute | Country | Key products / platforms | Tech features | Status 2026 | |:---|:---|:---|:---|:---| | **Corbion** | 🇳🇱 Netherlands | *Biviture high-purity ethyl L-lactate* | Sugarcane-derived lactic acid esterification, multi-industry green solvent | commercial | | **Galactic** | 🇧🇪 Belgium | *Galactic bio-solvents (Galasolv) line* | Lactic acid + lactates portfolio, ChemPoint / Comindex distribution | commercial | | **Vertec Biosolvents** | 🇺🇸 USA | *Corn-derived ethyl lactate, bioethanol-to-ethyl-acetate* | MEK-replacement positioning, Shrieve Chemical subsidiary (2024) | commercial | | **BASF** | 🇩🇪 Germany | *BMBcert biomass-balanced intermediates & additives* | Mass-balance attribution (ISCC PLUS / REDcert2), Jul 2026 architectural coatings expansion | commercial | --- ## Tech stack and innovations The stack spans two distinct bio-derived solvent value chains: direct ester-solvent production from fermentation-derived lactic acid and bioethanol, and biomass-balanced attribution of renewable carbon into existing solvent families. 1. **Lactic-acid esterification (Lactic Acid Esterification Solvents):** - Corbion's Biviture brand markets high-purity ethyl L-lactate from sugarcane-fermented lactic acid as a green solvent across ten key industries; Galactic's bio-solvents line and Vertec's corn-derived products share the same acid-catalysed esterification of fermentation-derived L-lactic acid with ethanol to produce ethyl lactate, the dominant bio-derived drop-in solvent chemistry. 2. **Bioethanol-to-ethyl-acetate catalysis (Bioethanol-to-Ethyl-Acetate Catalysis):** - Vertec Biosolvents' catalytic conversion of bioethanol to ethyl acetate removes the fossil-feedstock dependency of conventional ethyl acetate production (which is normally produced from ethylene via the Wacker process), positioning bio-derived ethyl acetate as a drop-in for paints, coatings and pharmaceutical processing solvent markets. 3. **Biomass-balanced attribution (Biomass-Balanced Solvent Attribution):** - BASF's BMBcert intermediates portfolio allocates renewable carbon from biomass feedstocks into existing solvent, intermediate and polyol families via mass-balance accounting within the integrated Ludwigshafen Verbund, certified under ISCC PLUS, REDcert2 and (since November 2025) ISCC EU schemes — a parallel commercial route that does not require dedicated bio-derived solvent molecules. 4. **VOC-exempt and substitution-grade formulations (VOC-Exempt Biosolvent Formulation):** - Vertec's MEK-replacement positioning, Corbion's high-purity ethyl L-lactate for pharma and electronics cleaning, and Galactic's Galasolv line all compete to displace regulated petrochemical solvents (MEK, toluene, xylene, methylene chloride) under the EPA VOC-exempt framework in the US and the EU Industrial Emissions Directive VOC caps in Europe. --- ## Value chains and production pipelines ### Industrial pipeline of biosolvents & green solvents (REACH / EPA VOC) ``` ┌───────────────────────────┐ ┌───────────────────────────┐ │ 1. Feedstock sourcing │ ───> │ 2. Fermentation / │ │ (sugars, bioethanol, │ │ mass-balance │ │ biomass residues) │ │ attribution │ └───────────────────────────┘ └───────────────────────────┘ │ ▼ ┌───────────────────────────┐ ┌───────────────────────────┐ │ 4. Purification │ <─── │ 3. Esterification / │ │ │ │ catalytic conversion │ └───────────────────────────┘ └───────────────────────────┘ │ ▼ ┌───────────────────────────┐ ┌───────────────────────────┐ │ 5. Formulation & blending │ ───> │ 6. End-use application │ │ (BMBcert / Galasolv) │ │ (coatings, degreasing) │ └───────────────────────────┘ └───────────────────────────┘ ``` #### Stage 1: Feedstock sourcing Sugarcane juice (Corbion's Biviture supply), corn starch (Vertec's supply), bioethanol, or biomass residues / waste cooking oil for mass-balance attribution (BASF BMBcert) are sourced as the renewable carbon feedstock, replacing the fossil naphtha / ethylene / propylene that feeds conventional solvent production. #### Stage 2: Fermentation / mass-balance attribution Microbial fermentation of sugars to L-lactic acid (Corbion, Galactic, Vertec via their lactic acid suppliers) or to bioethanol (Vertec's bioethanol-to-ethyl-acetate route); alternatively, biomass-derived feedstocks are co-fed into the integrated Verbund stream at BASF and attributed to downstream solvent and intermediate products via mass-balance accounting. #### Stage 3: Esterification / catalytic conversion Lactic acid is acid-catalysed esterified with ethanol to produce ethyl lactate (Corbion's Biviture, Galactic's Galasolv, Vertec's corn-derived products); alternatively, bioethanol is catalytically dehydrogenated and oxidised to ethyl acetate (Vertec's bioethanol-to-ethyl-acetate platform). #### Stage 4: Purification Crude ester solvent is purified to high-purity specification — Corbion's high-purity ethyl L-lactate grade is the reference standard for pharma, electronics cleaning and high-end coatings applications where trace impurities would compromise downstream chemistry. #### Stage 5: Formulation & blending Purified bio-derived solvent is blended into finished commercial solvent formulations — Galactic's Galasolv line via ChemPoint and Comindex distribution, Vertec's MEK-replacement products under Shrieve Chemical Company, and BASF's BMBcert-certified additive grades (Dispex AA 4145 MB, Rheovis PU 1333 MB, Rheovis HS 1169 MB launched July 2026) under ISCC PLUS / REDcert2 mass-balance certification. #### Stage 6: End-use application Bio-derived solvents replace MEK, toluene, xylene and methylene chloride in paints and architectural coatings, industrial degreasing, electronics cleaning, adhesives, and pharmaceutical processing — driven by REACH authorisation pressure on hazardous solvents and the EU Industrial Emissions Directive VOC emission caps that govern conventional solvent use.