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US10870584B2
(en)
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Integrated process and plant for production of urea and UAS (urea-ammonium sulphate) mixtures
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CA1058221A
(en)
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Manufacture of concentrated aqueous solutions of formaldehyde
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US3067177A
(en)
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Process for producing concentrated urea-formaldehyde solutions by absorbing gaseous formaldehyde in aqueous urea solutions
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RU2112768C1
(ru)
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Способ непрерывного получения водных растворов формальдегида
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JPH0662478B2
(ja)
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ホルムアルデヒド水溶液の製造法
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GB1517366A
(en)
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Manufacture of aqueous solutions of formaldehyde and urea
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US3369869A
(en)
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Process for recovering ammonia from ammonia-containing gas by means of sulfuric acid
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WO2016079544A1
(en)
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Process and apparatus for preparing an aqueous solution of formaldehyde
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US4055627A
(en)
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Process for treating gases in the ammonia synthesis
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US3277179A
(en)
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Manufacture of aqueous formaldehyde solution and paraformaldehyde
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RU2558113C2
(ru)
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Способ производства азотной кислоты
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IE35360B1
(en)
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Manufacture of nitric acid
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DE1767974B2
(de)
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Verfahren zur Herstellung von Blausäure und Wasserstoff aus Acetonitril und Ammoniak
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US3110563A
(en)
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Process for the production of high percentage nitric oxide
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CA1058220A
(en)
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Manufacture of formaldehyde
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US2531287A
(en)
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Production of hydrogen cyanide
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RU2717515C1
(ru)
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Способ получения гидроксиламинсульфата
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RU2287517C1
(ru)
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Способ получения формалина или карбамидоформальдегидного раствора
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US3728398A
(en)
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Preparation of formaldehyde
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US1378271A
(en)
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Process for the oxidation of ammonia
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US3655760A
(en)
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Cyclic process for the preparation of an oxime from a hydroxylammonium salt solution
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PL58635B1
(enExample)
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RU2846288C1
(ru)
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Способ и система получения водного раствора карбамида
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EA005129B1
(ru)
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Способ получения меламина из мочевины
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US12522563B2
(en)
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Urea production with reduced urea losses
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