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Special Report Special Report

Cumene (C) mediated aerobic techniques, such as CRISPR-based gene batch process gives 50% yield but the and a novel bioethanol and green NH
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oxidation of polyethylene (PE) editing. In the case of co-culture single continuous process gives 84% yield and approach; experiments were done in a
reactor sugar gives EtOH + iPrOH – that too in a much shorter reaction time. pilot scale reactor operating parallel to
Y. Che et al have referred to the endow- BuOH and HAC + HBlc. (Chem. Eng. This for analgesic, terpentadol. (Org. the main reactor in a Brazilian industrial
ment of new properties such as wetta- Magazine, 1 Sep., 2024). Prois. Res. Dev., 2025; DOI: 10.1021/ unit. The use of bioethanol and green
bility and adhesion to polar material acs.oprd.4c00447). NH can reduce environment impacts
3
via installation of polar group in PE. Multistep continuous hetero- by up to 5%. The proposed innovation
Here Cu is used as a radical mediator geneous synthesis of C.I. Reactive Techno-economic optimisation off ers a viable approach. (ACS Sustain-
and O as an oxidant to get oxidized PE Red 195 and safety evaluation of the renewable power to NH able Chem. Eng., 2025; DOI: 10.1021/
3
2
of the continuous diazotization system based on a flexible acssuschemeng.4c09745).
process process
was adopted. (Chem. Eng. Sci., 2025; title. Concurrent FE of >97% to Cl Synergizing process conditions,
water sensitivity, and kinetic
2
DOI: 10.1016/j.ces.2025.121286; 306, and 75% to CO at 200 mA/cm was L. Li et al have integrated the diazotiza- X. Zhang et al have referred to frequent
2
dynamic operation due to the fl uctuating mechanisms to optimize sodium
1 March, 121286). realized. KCl is superior to NaCl and tion and coupling reactions in solid-
CsCl in terms of cathode FE to CO liquid heterogeneous systems to realize of renewable energy. Renewal energy salicylate (SS) yield in sodium
Mononitration of N-(4-methoxy- and cell potential. (Chem. Eng. Pro- large-scale, multi-step, continuous fl ow to H network is referred for integration phenol carboxylation
2
phenyl))acetamide (MPA) in cessing Process Intensifi cation, 2025, with a functionalization degree of up system of water-soluble azo dyes, which with NH . Different alternatives are [Salicylic acid continues to be made
3
continuous fl ow 211, May, 110209; DOI: 10.1016/j. to 3.8 mole%. This material has a good is quite challenging. These authors have considered. A unit in Inner Mongolia is by Kolbe-Schmidt process via the title
cep.2025.110209). adhesion to aluminium plates and has considered. (Ind. Eng. Chem. Res., 2025; process.]
Z. Yu et al have studied the kinetics of DOI: 10.1021/acs.iecr.4c 04329).
the mononitration of MPA in a micro- Magnetic Nano hydrometal- increased tensile strength and improved H. Zhang et al have used dried sodium
reactor and the kinetic model was proved elastic modulus compared to the pristine Evaluation of the technical and phenolate particles in a batch high-pres-
by verifi cation experiments. Nitration lurgy (MNHM) for metal ion PE. Mechanism is explained. (Green environmental viability of a sure reactor. A reaction temperature of
separation and recovery
isomers realized high selectivity. The Chem., 2025; DOI: 10.1039/D5GC bioethanol, propene, and green 160°C and a reaction pressure of 0.55
title products and aspects of regioselec- 00034C). NH process for acetonitrile Mpa were considered in a reaction time
tivity were studied. It was possible to H.E. Toma has come out with the con- (ACN) production through of about 40 min. and a stirring speed of
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cept of MNHM, which is a nano tech- Efficient hydrolysis of poly-
work with operating conditions to get a comprehensive life cycle 50 rpm. The water content of the mate-
selectivity for both 2-NMA and 3-NMA nological version of hydrometallurgy. ethylene terephthalate (PET) reported safe operation and giving high rial had important eff ects on the yield.
above 99.5%. However, in practice, Complexing supermagnetic nanoparti- and product extraction using throughput of 120 liters per hour and a assessment (LCA) A kinetic model is provided, and this
98.4% selectivity of 2-NMA and 96% cles can improve metal extraction. Mole- an aqueous two-phase system yield of up to 736 kg per day. The purity study provides a basis for the design of
selectivity of 3-NMA were obtained. cules get complexed with supermagnetic (ATPS) of synthesized dye was 20% higher than I.S. Freitas et al have referred to ACN a continuous and effi cient process. (Org.
(Chem. Eng. Processing Process nanoparticles containing complexing the commercial C.I. Reactive Red 195. as an important chemical used as solvent Proc. Res. Dev., 2025; DOI: 10.1021/
Intensifi cation, 2025, 208, 110136; DOI: group. These particles then get captured S. Liu et al have used PEG 6000/KOH/ DFT calculations were done; also the and in pharmaceutical and fi ne chemicals acs.oprd.4c00383).
10.1016/j.cep.2024.110136). by a magnet allowing a rapid and clean H O to degrade PET at 90°C with con- industries. These authors have analysed
separation of the sequestered metal ions. version of 99.70% after 10 min and ab initio Molecular Dynamics (AIMD). the environmental footprint of ACN Urea complete conversion to
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Paired electrochemical synthesis This strategy has potential application in terephthalate yield of 95.86%. Reaction 2-Naphtylamine-1,5-disulfonic acid dia- production employing a Life Cycle compound fertilizer in industrial-
of Cl from alkali chloride and the recovery of strategic elements like solution was used more than 5 times. zonium salt was tested; DFT calculations Assessment (LCA). The comparison scale tandem reactors
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CO from CO 2 Cu, Co, Ag, Hg, Au and even the lantha- (Ind. Eng. Chem. Res., 2025; DOI: were done. (Org. Proc. Res. Dev., 2025; was between the fossil-based process
DOI: 10.1021/acs.oprd.5c00055).
nide ion. (Chem. Eng. Res. Des., 2025,
J. Vehrenberg et al have come out with 216, April, 251-269; DOI: 10.1061/j. 10.1021/acs.iecr.4c 04596). J. Hu et al have referred to a compound
fertilizer with NH H PO and KH PO
4
2
2
4
4
a potentially useful strategy as on the cherd.2025.03.003). Biofuels production via co-fer- Continuous flow telescopic which off ers signifi cant advantages in
mentation of sugar and CO 2 synthesis of 3-methoxy propio- enhancing both crop yield and quality.
phenone (MPP) by Grignard
These authors have combined electro-
M.P. Bailey has a note on this subject reaction (GR) chemical and subsequent chemical
where in stage 1 sugar goes to H + CO 2 processes. A typical case refers to the
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and in stage 2 H is consumed to give P. Wankhede and A.A. Kulkarni have use of 200 gm urea, 1580 gm of solid
2
ethanol + acetic acid; stage 1 gives ace- reported the title reaction starting with compound fertilizers, as above, and 232
tone + butanol + ethanol + HAC + HBlc 3-bromoanisole and making MgBr and liters of pure H are produced, without
2
and together then go for separation. The condensation with propionitrile. This is any separation process. The process
above refers to two-stage reactor adopt- followed by quenching, neutralization, is described. (Angew. Chem. Intl. Ed.,
ing advanced microbial engineering and phase separation. The optimised 2025; DOI: 10.1002/anie.2024.23092).
156 Chemical Weekly June 10, 2025 Chemical Weekly June 10, 2025 157
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