Uburyo bwo gufatanya asidi ya karboni
Ubwo buryo bwakoresheje mu ntango umunyu wa palladium n’umuringa nk’ibituma ibintu bigenda neza, kandi bwakoze igikorwa co gufatanya amazi n’ibindi bihimba vy’umubiri vy’umuyagankuba, umwuka w’ikirere, inzoga, n’umuyagankuba w’amazi ku bushuhe bwa 8–11 MPa na 90–100 °C. Ivyo bica bibanza gutuma habaho oxalate ester, iyo ester igaca ihinduka amazi mu gihe c’ubushuhe kugira ngo ikore aside oxalique n’inzoga ihuye n’iyo.
Ubwo buryo burafise uburyo bumwe bwo gutuma ibintu bigenda neza, burakora cane, burahitamwo neza, burasubirana vyoroshe, burasukuye cane, kandi burahumanya cane. Ariko rero, irafise ibisabwa vyinshi ku bijanye n’ubusuku bw’umuyagankuba, gukoreshwa cane, gukoresha ibintu bizimvye vyo gutuma ibintu bigenda neza, no gushiramwo amahera menshi.
Hakoreshejwe Pd/C nk’ikintu gitera, monoxide ya carbone na nitrite ester birahurizwa hamwe kugira ngo bikore oxalate ester ku 130 °C n’umuvuduko w’ikirere, nitric oxide nk’igice c’inyuma. Asidi ya oxalique n’inzoga ihuye nayo biboneka mu guhindura amazi mu gice c’umubiri citwa oxalate ester. Ico gisubizo c’inzoga gitandukanijwe kirasubira guhinduka umwuka kugira ngo kibe nitrite ester, iyo na yo ikaba ishobora gusubirwamwo.
Ikigo ca Fujian c’imiterere y’ibintu, Ishure ry’ubuhinga ry’Ubushinwa, ryakoze ubushakashatsi ku rugero rw’ibikoresho vya mbere n’imimerere itandukanye y’umuvuduko wo mu kirere ku bijanye n’ugukorana kw’ibintu bitera umuriro bita dimethyl oxalate mu bushakashatsi bw’ibintu bitera umuriro bikorana n’umuvuduko w’ikirere bitera umuvuduko w’ikirere bikorana n’ibintu bishobora gutuma umuntu akora neza, n’ibindi. Ico gikoresho ca Pd (2,0%)/α-Al2O3 cateye imbere carashitse ku ntumbero y’igihe n’ikirere c’ibilometero 999/L·h mu gihe c’umuvuduko w’ikirere, 140 °C, CO/CH3ONO=1,5, n’umuvuduko w’ikirere w’ibilometero 3000/h. Iryo shirahamwe ryafatanije n’ishirahamwe ry’ubuhinga bwa peteroli ryo muri Fujian hamwe n’uruganda rwa Fujian Nanqing Ammonia Plant kugira ngo rikore igerageza ry’igerageza ry’amatoni 100/a ryo gukura CO mu gusukura umuringa w’amoniya, mu gusukura umuvuduko w’ikirere, no mu guhindura aside y’amazi kugira ngo.
Ugereranije n’uburyo bw’amazi, ubwo buryo burafise ubushobozi bwo guhitamwo cane, uburyo bworoshe, ubusuku bwinshi bw’ibintu, n’igiciro gito co gukora. Ishobora gukoresha gazi kavukire canke amakara nk’ibikoresho vya mbere, kandi ishobora kandi gukoresha gazi y’umuringa ivuye mu gusukura umuringa w’amoniya canke ifuru y’umuhondo y’umuringa, ifuru y’umuhondo, n’umuriro w’umurizo w’umuhinduzi nk’inkomoko ya gazi y’umuringa. Muri ico gihe nyene, birashobora gutanga ibikoresho vya mbere bihendutse vyo guhingura éthylène glycol be n’ugukoranya ibintu bimwe bimwe bikoresheje oxalate ester nk’ikintu co hagati.

Ishirahamwe ry’imiti ry’i Shandong Pulisi | Uwutanga aside ya Oxalic
Pulisi Chemical yashinzwe mu mwaka w’2006, ikaba ari umuhinga mu bijanye n’uguhingura aside oxalique y’ubusuku bwinshi (CAS 144-62-7) ihuye n’ingingo mfatirwako mpuzamakungu zijanye n’ugushora ibintu hanze y’igihugu ku bijanye n’ivyo mu nganda no mu vyo gutunganya. Ico kigo cacu co guhingura ibintu gishingiye kuri Zibo kiratuma habaho ukugenzura gukomeye kw’uburyo, n’aside oxalic y’urugero rw’inganda yirata ubusuku bukeyi bwa 96% n’ubusuku bushitse ku rugero rwa 99,6%—ihuye n’ibisabwa bitandukanye vy’inganda.
Asidi yacu ya oxalic iratandukanye n’izindi kubera uburyo bwiza cane bwo gusenyuka n’imiterere yayo idahinduka, ikora nk’ikintu gikoreshwa mu buryo bwinshi mu mice yose. Mu gutunganya ivyuma, irakuraho neza umugese be n’ibihimba vy’umubiri biri ku ruhande rw’ivyuma, aluminium be n’umuringa, ivyo bikaba bituma ivyuma bishobora kwifatanya n’ibindi bikoresho vyo gukoresha mu modoka, mu ndege no mu gukoresha umuyagankuba. Mu mpuzu, ikora nk’ikintu co guhindura ibara ry’impuzu n’ibara ry’impuzu, kigatuma ibara ry’impuzu riguma rikomeye kandi rikayangana.
Ikindi kandi, ikoreshwa cane mu guhingura imiti, mu gutunganya ibiti, mu gukura ivyuma bidasanzwe no mu gusukura amazi. Twemejwe na ISO 9001 na EU REACH, dutanga ibipapuro vy’ibilo 25 vy’amategeko ku mategeko menshi, bikaba vyemeza ko ibipapuro vy’isi yose bishobora kwizigirwa. Yaba ku bikorwa vy’inganda vyinshi canke ku bikorwa vy’agaciro kanini, Pulisi Chemical itanga uburyo buhoraho n’ubufasha bw’umwuga.